Drx

eRAN
DRX and Signaling Control Feature Parameter Description
Issue 02
Date 2015-04-30
HUAWEI TECHNOLOGIES CO., LTD.

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Contents
1 About This Document
1.1 Scope

1.2 Intended Audience
1.3 Change History
1.4 Differences Between eNodeB Types
2 Overview of DRX and Signaling Control
3 DRX
3.1 Introduction
3.1.1 Definition and Application Scenarios
3.1.2 Benefits
3.1.3 Process
3.2 Relationship with QCI
3.3 Entry and Exit Conditions
3.3.1 Entry Conditions
3.3.2 Exit Conditions
3.4 Working Mechanism
3.4.1 Related Concepts
3.4.2 Startup of a DRX Cycle
3.4.3 Operation in a DRX Cycle
3.4.3.1 Operation in Active Time
3.4.3.2 Switching Between Active Time and Sleep Time
3.4.4 Switching Between Long and Short DRX Cycles
3.5 DRX Parameters for Various Scenarios
3.5.1 DRX Parameters for VoIP
3.5.2 DRX Parameters for Special UEs
3.5.3 DRX Parameters for ANR Measurements
4 Dynamic DRX

4.1 Introduction
4.1.2 Benefits
4.1.3 Process
4.3 Principles
5 High-Mobility-Triggered Idle Mode
5.1 Introduction
5.1.2 Benefits
5.2 Principles
6 Related Features
6.1 Features Related to LBFD-002017 DRX
6.2 Features Related to LOFD-00110501 Dynamic DRX
6.3 Features Related to LOFD-00110502 High-Mobility-Triggered Idle Mode
7 Network Impact
7.1 LBFD-002017 DRX
7.2 LOFD-00110501 Dynamic DRX
7.3 LOFD-00110502 High-Mobility-Triggered Idle Mode
8 Engineering Guidelines for LBFD-002017 DRX
8.1 When to Use DRX
8.2 Required Information
8.3 Planning

8.4 Deployment
8.4.1 Requirements
8.4.2 Data Preparation
8.4.3 Precautions
8.4.4 Hardware Adjustment
8.4.5 Activation
8.4.5.1 Using the CME to Perform Batch Configuration for Newly Deployed eNodeBs
8.4.5.2 Using the CME to Perform Batch Configuration for Existing eNodeBs
8.4.5.3 Using the CME to Perform Single Configuration
8.4.5.4 Using MML Commands
8.4.6 Activation Observation
8.4.7 Reconfiguration
8.4.8 Deactivation
8.4.8.1 Using the CME to Perform Batch Configuration
8.5 Maintenance
8.5.1 Performance Monitoring
8.5.2 Parameter Optimization
8.5.3 Troubleshooting
9 Engineering Guidelines for LOFD-00110501 Dynamic DRX
9.1 When to Use Dynamic DRX
9.3 Planning
9.4 Deployment

9.4.1 Requirements
9.4.3 Precautions
9.4.5 Activation
9.4.8 Deactivation
9.5 Maintenance
10 Engineering Guidelines for LOFD-00110502 High-Mobility-Triggered Idle Mode
10.1 When to Use High-Mobility-Triggered Idle Mode
10.3 Planning
10.4 Deployment
10.4.1 Requirements

10.4.3 Precautions
10.4.5 Activation
10.4.8 Deactivation
10.5 Maintenance
11 Parameters
12 Counters
13 Glossary
14 Reference Documents
1 About This Document
1.1 Scope

This document describes discontinuous reception (DRX) and signaling control, including its
technical principles, related features, network impact, and engineering guidelines. This
document covers the following features:
 LBFD-002017 DRX
 LOFD-00110501 Dynamic DRX
 LOFD-00110502 High-Mobility-Triggered Idle Mode
Any managed objects (MOs), parameters, alarms, or counters described herein correspond to
the software release delivered with this document. Any future updates will be described in the
product documentation delivered with future software releases.
This document applies only to LTE FDD. Any "LTE" in this document refers to LTE FDD,
and "eNodeB" refers to LTE FDD eNodeB.
This document applies to the following types of eNodeBs.
eNodeB Type Model
Macro 3900 series eNodeB
Micro BTS3202E
LampSite DBS3900 LampSite
1.2 Intended Audience
This document is intended for personnel who:
 Need to understand the features described herein
 Work with Huawei products
1.3 Change History
This section provides information about the changes in different document versions. There
are two types of changes:
 Feature change
Changes in features and parameters of a specified version
 Editorial change
Changes in wording or addition of information and any related parameters affected by
editorial changes
eRAN8.1 02 (2015-04-30)
This issue includes the following changes.

Change Type Change Description Parameter
Change
Feature change Added recommended DRX parameter settings for VoIP.
For details, see 3.5.1 DRX Parameters for VoIP.
None
Editorial
change
None None
eRAN8.1 01 (2015-03-23)
This issue includes the following changes.
Change
Type
Change Description Parameter
Change
Feature
change
None None
Editorial
change
Added configuration rules when all of QCI 1, QCI 5, and
default bearers exist. For details, see 3.2 Relationship with
QCI.
None
eRAN8.1 Draft A (2015-01-15)
Compared with Issue 05 (2014-11-13) of eRAN7.0, Draft A (2015-01-15) of eRAN8.1
includes the following changes.
Change Type Change Description Parameter
Change
Feature
change
Added the impact of defective UEs on networks after the
dynamic DRX feature is enabled, and also the
recommended handling methods. For details, see 9.1
When to Use Dynamic DRX.
None
Editorial
change
None None
1.4 Differences Between eNodeB Types
Feature Support by Macro, Micro, and LampSite eNodeBs
Feature ID Feature Name Supported by
Macro eNodeBs
Supported by
Micro eNodeBs
Supported by
LampSite
eNodeBs
LBFD-002017 DRX Yes Yes Yes
LOFD- Dynamic DRX Yes Yes Yes

Feature ID Feature Name Supported by
Macro eNodeBs
Supported by
Micro eNodeBs
Supported by
LampSite
eNodeBs
00110501
LOFD-
00110502
High-Mobility-
Triggered Idle
Mode
Yes Yes No
Function Implementation in Macro, Micro, and LampSite eNodeBs
The function described in this document is implemented in the same way on macro, micro,
and LampSite eNodeBs.
2 Overview of DRX and Signaling Control
With the ever increasing diversity of LTE applications, terminal standby time has become a
major concern for end users. To reduce the power consumption of the user equipment (UE),
3GPP has introduced discontinuous reception (DRX) for LTE and Huawei eNodeBs provide
the LBFD-002017 DRX feature accordingly.
Moreover, many intelligent-terminal applications use small, sparse packets or heartbeat
packets. These applications cause networks to frequently release and reestablish radio
resource control (RRC) connections, increasing signaling. Staying in connected mode for an
extended period consumes UE power. The Huawei feature LOFD-00110501 Dynamic DRX
allows UEs to enter power saving or reduced signaling mode based on UE power
consumption and network load.
When UEs in connected mode are moving at high speeds, frequent handovers occur. When
there are a large number of such UEs, excessive signaling strains the network. To reduce the
signaling, Huawei eNodeBs use the LOFD-00110502 High-Mobility-Triggered Idle Mode
feature.
Table 2-1 describes the application scenarios and benefits of DRX and signaling control
features.
Table 2-1 Application scenarios and benefits of DRX and signaling control features
Feature
Name
Recommended
UE Type
Application Scenario Benefit
LBFD-
002017 DRX
Smart and non-
smart terminals
 Services with periodic
transmission of
continuous small
packets, such as voice
over IP (VoIP) services
 Delay-insensitive
services, such as web
browsing and emails
Reduces UE power
consumption.

Feature
Name
Recommended
UE Type
Application Scenario Benefit
 Services that use small,
sparse packets, such as
Presence services
 Automatic neighbor
relation (ANR)
measurement
LOFD-
00110501
Dynamic
DRX
Smart terminals  Services characterized
by small, sparse packets
 Services characterized
by heartbeat packets,
such as the Microsoft
Service Network (MSN)
 Reduces
signaling storms
caused by
frequent RRC
connection
releases and
reestablishments
for these services.
 Reduces UE
power
consumption.
LOFD-
00110502
High-
Mobility-
Triggered
Idle Mode
Smart terminals Long-term stay in connected
mode and frequent handovers
Reduces signaling storms
caused by handovers of
UEs moving at high
speeds.
NOTE:
Presence services, such as MSN presence notices, allow end users to obtain real-time
presence information based on a certain communication methods and access policies.
Presence information includes user status, communication capabilities, and personal
preferences.
"UE" and "terminal" in this document have the same meaning.
3 DRX
This chapter describes the principles of LBFD-002017 DRX. For engineering guidelines, see
8 Engineering Guidelines for LBFD-002017 DRX.
3.1 Introduction
Definition

DRX is a technology in which a UE can switch between active and sleep states. When the UE
needs to receive downlink (DL) data or signaling, the UE turns on its receiver and enters the
active state. In other situations, the UE turns off its receiver and enters the sleep state to
reduce power consumption.
DRX for UEs in connected mode is provided by LBFD-002017 DRX. DRX for UEs in idle
mode, as described in Idle Mode Management Feature Parameter Description, is different.
Unless otherwise stated, "DRX" in this document refers to DRX for UEs in connected mode.
In DRX mode, a DRX cycle consists of active time and sleep time, which correspond
respectively to the active state and sleep state. In non-DRX mode, the UE keeps its receiver
on and stays in the active state. For explanations of the DRX cycle, active time, and sleep
time, see 3.4.1 Related Concepts.
Application Scenarios
DRX can be used with all mobile terminals. It is suitable for the following types of services:
 Data services insensitive to delay
 Services that generate small, sparse packets
 Services with periodic transmission of continuous small packets
 ANR measurement
3.1.2 Benefits
DRX provides the following advantages over continuous reception:
 Reduces power consumption and prolongs the standby time of the UE. The UE does
not need to constantly monitor the physical downlink control channel (PDCCH). The
UE can turn off its radio frequency (RF) receiver and other communication modules.
 Allows the UE to perform ANR measurement during the sleep time in DRX.
NOTE:
 When a UE is in DRX mode, the standby time depends on the UE model, traffic
model, and DRX parameter settings. UEs from certain vendors do not need to
constantly monitor the PDCCH, however, they cannot turn off their RF modules and
the power saving effect is limited.
 Performance preference or power saving preference can be configured by DRX
parameters. For details, see 8.4.5.4 Using MML Commands.
3.1.3 Process
Figure 3-1 shows the DRX process.

Figure 3-1 DRX process
1. DRX entry phase
After the UE accesses the network, the eNodeB checks whether the UE meets the
conditions for entering DRX mode. When the conditions are met, the eNodeB sends
the UE an RRC Connection Reconfiguration message with the DRX-Configuration
information element (IE) set to setup. The UE then enters DRX mode based on other
parameters in this IE. For the conditions for entering DRX mode, see 3.3.1 Entry
Conditions.
2. DRX execution phase
After the UE enters DRX mode, the eNodeB instructs the UE to switch between
active and sleep states as well as between long and short DRX cycles based on
network conditions and parameter settings. For details, see 3.4.3.2 Switching Between
Active Time and Sleep Time and 3.4.4 Switching Between Long and Short DRX
Cycles.
3. DRX exit phase

The eNodeB checks whether the UE meets the conditions for exiting DRX mode.
When the conditions are met, the eNodeB sends the UE an RRC Connection
Reconfiguration message with the DRX-Configuration IE set to release. After the UE
receives the message, it immediately clears all the DRX parameters stored locally and
exits DRX mode. For the conditions for exiting DRX mode, see 3.3.2 Exit
Conditions.
3.2 Relationship with QCI
Services with different QoS class identifiers (QCIs) have different characteristics. Users can
set DRX policies on a per QCI basis. The following QCI-specific parameters are
configurable:
 DRX switch: DrxParaGroup.EnterDrxSwitch
For the function and usage of this switch, see 3.3 Entry and Exit Conditions.
 DRX timer parameters:
o DrxParaGroup.OnDurationTimer
o DrxParaGroup.DRXInactivityTimer
o DrxParaGroup.DRXReTxTimer
o DrxParaGroup.LongDrxCycle
o DrxParaGroup.ShortDrxCycle
o DrxParaGroup.DrxShortCycleTimer
o DrxParaGroup.SupportShortDrx
For the functions and usages of these timers, see 3.4 Working Mechanism.
Table 3-1 lists the QCIs and corresponding service types.
Table 3-1 QCIs and corresponding service types
QCI Bearer
Type
Priority PDB (ms) PELR Example Service
1 GBR 2 100 10-2 Conversational voice
2 4 150 10-3 Conversational video, such as live streaming
3 3 50 10-3 Real-time gaming
4 5 300 10-6 Non-conversational video, such as buffered
streaming
5 Non-
GBR
1 100 10-6 IMS signaling
6 6 300 10-6  Video, such as buffered streaming
 TCP-based services, such as web
browsing, emails, chat, and P2P
services
7 7 100 10-3  Voice

QCI Bearer
Type
Priority PDB (ms) PELR Example Service
 Video, such as live streaming
 Interactive gaming
8 8 300 10-6  Video, such as buffered streaming
 TCP-based services, such as web
browsing, emails, chat, and P2P
services
9 9
NOTE:
 PDB: packet delay budget
 PELR: packet error loss rate
 GBR: guaranteed bit rate
 IMS: IP multimedia subsystem
 TCP: Transmission Control Protocol
 P2P: point-to-point
For example, as VoIP services have a QCI of 1, the DRX parameters for QCI 1 can be used
for VoIP services. For details about DRX principles for VoIP services, see 3.5.1 DRX
Parameters for VoIP.
If services with different QCIs are running on the UE, the following DRX parameter
selection rules are recommended:
 If any QCI is not configured with a DRX parameter group, the eNodeB will not
configure DRX parameters for this UE.
 If each QCI is configured with a DRX parameter group, then:
o If each DRX parameter group has a different DrxParaGroup.LongDrxCycle
parameter value, the eNodeB will select the DRX parameter group with the
smallest DrxParaGroup.LongDrxCycle parameter value for this UE.
o If multiple DRX parameter groups have the smallest
DrxParaGroup.LongDrxCycle parameter value, the eNodeB will select the
DRX parameter group for the QCI with the highest priority defined by 3GPP.
When the UE simultaneously has bearers of QCI 1 and QCI 5 as well as a default bearer (for
example, of QCI 6, 7, 8, or 9), the eNodeB complies with the following configuration rules:
 If the default bearer and QCI 1 bearer have the same
DrxParaGroup.LongDrxCycle value (for example, 40 ms) or the default bearer has
a smaller value than the QCI 1 bearer, the QCI 5 bearer must have a larger value (for
example, 80 ms) than the default bearer and QCI 1 bearer.
 If the default bearer has a larger DrxParaGroup.LongDrxCycle value than the QCI
1 bearer, the default bearer and QCI 5 bearer must use the same DRX parameter
group, which is defined in the DrxParaGroup MO.

The UE enters or exits DRX mode only after receiving an instruction from the eNodeB. This
section describes the conditions for entering and exiting DRX mode.
The DRX functionality is jointly controlled by the general DRX switch Drx.DrxAlgSwitch
and the QCI-specific DRX switch DrxParaGroup.EnterDrxSwitch.
After the UE receives an RRC Connection Reconfiguration message with the DRX-
Configuration IE set to setup, it enters DRX mode. The eNodeB instructs the UE to enter
DRX mode if all the following conditions are met:
 The Drx.DrxAlgSwitch parameter is set to ON(On).
 All the established bearers for the UE support DRX. That is, the
DrxParaGroup.EnterDRXSwitch parameter of each bearer is set to ON(On).
 One of the following conditions related to the CellDrxPara.FddEnterDrxThd
parameter is met:
o The CellDrxPara.FddEnterDrxThd parameter is set to a value ranging from
0 to 999, and the measured traffic volume is less than or equal to the value of
the CellDrxPara.FddEnterDrxThd parameter in the period specified by the
CellDrxPara.DataAmountStatTimer parameter.
o The CellDrxPara.FddEnterDrxThd parameter is set to 1000. Under this
setting, the eNodeB does not evaluate DRX entry based on the measured
traffic volume; instead, the eNodeB directly instructs the UE to enter DRX
mode.
There are exceptions. When one of the following conditions is met, the eNodeB no longer
instructs the UE to enter DRX mode:
 The UE constantly performs gap-assisted measurement.
 The UE is in the transmission time interval (TTI) bundling state.
The UE exits DRX mode in any of the following situations:
 The UE receives an RRC Connection Reconfiguration message with the DRX-
Configuration IE set to release and clears all the stored DRX parameters. The
eNodeB sends this message if any of the following conditions is met:
o The QCI of a new service does not allow the UE to enter DRX mode.
The DrxParaGroup.EnterDRXSwitch parameter is set to OFF(Off).
o The traffic volume of the UE is high.

The measured traffic volume is higher than the threshold specified by the
CellDrxPara.FddExitDrxThd parameter in the period specified by
theCellDrxPara.DataAmountStatTimer parameter.
However, if the CellDrxPara.FddExitDrxThd parameter is set to 1000, the
UE does not exit DRX mode.
 The Drx.DrxAlgSwitch parameter is set to OFF(Off), and the eNodeB instructs the
UE to exit DRX mode in the RRC connection reconfiguration procedure.
 The UE in connected mode experiences a radio link failure (RLF) when radio
conditions deteriorate.
 During a handover, the eNodeB instructs the UE to exit DRX mode.
 The UE enters the TTI bundling state.
3.4 Working Mechanism
In DRX mode, the UE no longer constantly monitors the PDCCH. When the UE is in the
active state in DRX mode, its receiver is turned on to monitor the PDCCH. When the UE is in
the sleep state, it no longer monitors the PDCCH and its receiver can be turned off to reduce
power consumption.
3.4.1 Related Concepts
On Duration
When the UE is in DRX mode, it cannot keep its receiver off all the time. It must periodically
turn on its receiver and monitor the PDCCH for incoming signaling for a consecutive period.
This consecutive period is called On Duration, and the related timer is named On Duration
Timer. The DrxParaGroup.OnDurationTimer parameter specifies the On Duration.
DRX Cycle
A DRX cycle is the interval between two occurrences of On Duration. A DRX cycle includes
an On Duration and a possible period of sleep time, as shown in Figure 3-2.
Figure 3-2 DRX cycle
NOTE:
The period following an On Duration may be active or sleep time. For details, see 3.4.3.1
Operation in Active Time.
A DRX cycle consists of active time and sleep time. It may be a long or short cycle.

Active Time
In active time, the UE turns on its receiver and monitors the PDCCH. Active time is equal to
an On Duration plus other possible periods during which the UE needs to turn on its receiver,
for example, a period during which a DRX timer is working or a high-priority service is
being processed. DRX timers include the DRX Inactivity Timer, Contention Resolution
Timer, and DRX Retransmission Timer. For details, see 3.4.3.1 Operation in Active Time.
For a given DRX cycle:
 A longer active time results in a shorter service delay but increased UE power
consumption.
 A shorter active time results in reduced UE power consumption but a longer service
delay.
SleepTime
During a DRX cycle, the UE is not active during sleep time. During sleep time, the UE turns
off its receiver.
Long DRX Cycle
Using a long DRX cycle can save more power. The long cycle is specified by the mandatory
parameter DrxParaGroup.LongDrxCycle.
NOTE:
If a short DRX cycle is not configured before DRX is enabled, the UE will use the long cycle
after entering DRX mode. If a short cycle has been configured before DRX is enabled, the
UE will preferentially use the short cycle and switches to the long cycle after the timer
defined by DrxParaGroup.DrxShortCycleTimer expires.
Short DRX Cycle
The application of a short DRX cycle is jointly controlled by Drx.ShortDrxSwitch and the
QCI-level DRX switch DrxParaGroup.SupportShortDrx.
A short cycle results in better service experience than a long cycle but saves less power. You
can use the following parameters for configuring a short cycle:
 Drx.ShortDrxSwitch: specifies whether to use short DRX cycles.
 DrxParaGroup.SupportShortDrx: specifies whether services of a specific QCI
support short DRX cycles.
 DrxParaGroup.ShortDRXCycle: specifies the length of a short DRX cycle.
These parameters are optional parameters.
If a short DRX cycle is configured for the UE, the UE will determine when to use the long or
short cycle as described in 3.4.4 Switching Between Long and Short DRX Cycles.

3.4.2 Startup of a DRX Cycle
After the UE enters DRX mode, the On Duration Timer may not start immediately. The timer
starts up and the UE starts a long or short DRX cycle only when the following conditions are
met:
 For a long DRX cycle:
[(SFN x 10) + SSFN] modulo DrxParaGroup.LongDRXCycle = DRX start offset
The long DRX cycle starts at the time specified by the system frame number (SFN) or
system subframe number (SSFN).
 For a short DRX cycle:
[(SFN x 10) + SSFN] modulo DrxParaGroup.ShortDRXCycle = (DRX start offset)
modulo DrxParaGroup.ShortDRXCycle
The short DRX cycle starts at the time specified by the SFN or SSFN.
NOTE:
These formulas are defined in section 5.7 "Discontinuous Reception (DRX)" of 3GPP TS
36.321 V10.5.0.
In these formulas, DRX start offset is the start offset of the long DRX cycle, and (DRX start
offset) modulo DrxParaGroup.ShortDRXCycle is the start offset of the short DRX cycle.
The eNodeB notifies the UE of the long DRX cycle, short DRX cycle, and DRX start offset
in the RRC Connection Reconfiguration message.
If the DrxParaGroup.ShortDRXCycle parameter is set, the value of the LongDrxCycle
parameter must be an integer multiple of the value of the DrxParaGroup.ShortDRXCycle
parameter.
Figure 3-3 shows how the UE enters DRX mode. The eNodeB assigns the same long DRX
cycle of 10 transmission time intervals (TTIs) to both UE 1 and UE 2 in radio frame 0 (whose
SFN is 0) in a cell and instructs them to enter DRX mode respectively at TTI 1 and TTI 0.
UE 1 and UE 2 enter the DRX cycle respectively at TTI 3 and TTI 4, based on the configured
DRX start offset. Therefore, for UE 1, (SFN, SSFN) = (0, 3); for UE 2, (SFN, SSFN) = (0, 4).

Figure 3-3 Entering DRX mode and starting the DRX cycle
3.4.3 Operation in a DRX Cycle
A DRX cycle consists of active time and sleep time. This section describes the operation in
active time and the switching between active time and sleep time.
3.4.3.1 Operation in Active Time
The UE turns on its receiver in active time. According to section 5.7 in 3GPP TS 36.321
V10.5.0, the UE is in active time if any of the following conditions is met:
 The On Duration Timer, DRX Inactivity Timer, DRX Retransmission Timer, or
Contention Resolution Timer is running. For details about the timers, see Table 3-2.
 A scheduling request (SR) sent by the UE on the physical uplink control channel
(PUCCH) is pending.
 An uplink (UL) grant for a pending hybrid automatic repeat request (HARQ)
retransmission occurs.
 The UE has not received a PDCCH indicating an initial data transmission after
successfully receiving a Random Access Response in a non-contention-based random
access procedure.
The starting of a timer triggers the starting of active time. Table 3-2 describes DRX timers.
Table 3-2 DRX timers
DRX Timer Parameter ID Definition Description
On Duration
Timer
DrxParaGroup.OnDurationTimer Function This timer specifies
the time during
which the UE
monitors the
PDCCH.
Start This timer starts at
the first subframe of
a DRX cycle. For
details, see 3.4.2

Startup of a DRX
Cycle.
Timing Timing is based on
the number of
consecutive PDCCH
subframes.
Stop This timer stops
after it expires or the
UE receives a DRX
command MAC
control element
(MCE).
Expiry After this timer
expires, the UE
enters the sleep
time, no longer
monitoring the
PDCCH.
DRX
Inactivity
Timer
DrxParaGroup.DRXInactivityTimer Function This timer specifies
the time during
which the UE
determines whether
to extend its active
time because of the
arrival of new data.
This timer provides
a reference for the
UE to use a short
DRX cycle.
Start This timer starts or
restarts when the UE
successfully decodes
a PDCCH indicating
an initial UL grant
or DL user data for
this UE.
the number of
consecutive PDCCH
subframes.
after it expires or the
UE receives the
DRX command

MCE.
expires, the UE uses
a short DRX cycle if
the cycle is
configured, and the
DRX Short Cycle
Timer starts or
restarts.
Alternatively, the
UE uses the long
DRX cycle if no
short DRX cycle is
configured.
DRX Short
Cycle Timer
DrxParaGroup.DRXShortCycleTimer Function This timer specifies
the lifetime of a
short DRX cycle,
that is, the number
of consecutive
repetition times of a
short DRX cycle.
Start  After the
DRX
Inactivity
Timer
expires, this
timer starts
or restarts if
a short DRX
cycle is
configured.
 After the UE
receives the
DRX
command
MCE, this
timer starts
or restarts if
a short DRX
cycle is
configured.
 The UE uses
a short DRX
cycle after
the DRX
Short Cycle

Timer starts.
the repetition times
of the short DRX
cycle.
after it expires.
expires, the UE uses
the long DRX cycle.
DRX
Retransmission
Timer
DrxParaGroup.DRXReTxTimer Function This timer specifies
the amount of time
the UE will wait for
HARQ
retransmission in
active time. If the
UE has not received
the retransmitted
data before this
timer expires, the
UE will no longer
accept it.
Start When the HARQ
RTT Timer expires,
the DRX
Retransmission
Timer starts or
restarts if the UE
does not receive the
retransmitted DL
data.
the number of
consecutive PDCCH
subframes.
Stop This timer stops if
the UE receives the
retransmitted data
before the timer
expires.
expires, the UE
takes no further

action.
HARQ RTT
Timer
- Function This timer specifies
the interval between
the initial DL data
transmission and the
first DL HARQ
retransmission. This
timer is used to
determine when to
start the DRX
Retransmission
Timer.
Start This timer starts and
the DRX
Retransmission
Timer stops during
either of the
following situations:
 At the
beginning of
the subframe
when semi-
persistent
DL data
transmission
may take
place.
 The UE
decodes a
PDCCH and
detects that a
HARQ
process will
have a DL
transmission
in a new
subframe.
the number of
subframes.
after it expires.

expires, if the UE
detects that DL data
has been received
correctly, the UE
takes no further
action; otherwise,
the DRX
Retransmission
Timer starts.
Contention
Resolution
Timer
- Function This timer specifies
the time during
which the UE waits
for a Contention
Resolution message
in a contention-
based random
access procedure.
For details about the
random access
procedure, see
Connection
Management
Feature Parameter
Description.
Start This timer starts
when the UE
initially transmits or
retransmits an Msg3
in a contention-
based random
access procedure.
the number of
consecutive PDCCH
subframes.
after the UE
receives a
Contention
Resolution message.
expires, the UE
retransmits a
preamble.

The hyphen (-) in this table indicates that there is no parameter ID.
In the On Duration, the DRX Inactivity Timer starts when the UE decodes a PDCCH and
detects that an initial data transmission is about to start. The UE continues to monitor the
PDCCH for new transmissions until the DRX Inactivity Time expires. The timer restarts if a
new transmission occurs. The DRX Inactivity Timer repeatedly restarts because of
continuous data transmission to prolong the active time.
When the DRX Inactivity Timer expires and a short DRX cycle has been configured, the UE
enters a short DRX cycle. For details, see Switching from a Long DRX Cycle to a Short DRX
Cycle.
3.4.3.2 Switching BetweenActive Time and Sleep Time
Switching between active time and sleep time depends on DRX timers and service processes.
Figure 3-4 illustrates the switching between active time and sleep time in various frequency
division duplex (FDD) mode scenarios.

Figure 3-4 Switching between active time and sleep time
Table 3-3 describes the conditions for starting active time. For example, OD is the condition
for starting the On Duration Timer.
Table 3-3 Conditions for starting active time
Condition Meaning
OD A DRX cycle starts.
IA A PDCCH message indicating an initial DL data transmission is
received.
R The HARQ RTT Timer expires.
SR A UL scheduling request is sent.
UR A UL negative acknowledgment (NACK) is received, and retransmission
is required.
RAR A non-contention-based random access response is received.

Condition Meaning
CR Msg3 is sent in a random access procedure.
The active time shown in the UE DRX status plot in Figure 3-4 combines the active time
described in each of the other plots excluding the plot of HARQ RTT Timer.
In the plot of HARQ RTT Timer, "DL HARQ raises" refers to one of the two DL HARQ
transmission scenarios:
 A semi-persistent DL data transmission is scheduled to start at the subframe.
 A DL data transmission is scheduled to start at the subframe, which the UE learns by
monitoring the PDCCH.
3.4.4 Switching Between Long and Short DRX Cycles
Although the eNodeB assigns both long and short DRX cycles to the UE, the UE uses a long
or short DRX cycle at a time. The UE can switch between long and short DRX cycles
according to certain rules.
Switching from a Long DRX Cycle to a Short DRX Cycle
If the eNodeB delivers short DRX cycle parameters to the UE, the UE will exit the long DRX
cycle and enter a short DRX cycle if either of the following occurs:
 The DRX Inactivity Timer expires.
If there is data to transmit, the eNodeB starts the DRX Inactivity Timer. When the
DRX Inactivity Timer expires, the short DRX cycle starts.
 The UE receives the DRX command MCE.
After the UE receives the DRX command MCE, the UE enters a short DRX cycle.
Otherwise, the UE still uses the long DRX cycle.
Switching from a Short DRX Cycle to a Long DRX Cycle
If the UE does not receive new data during a specified period after entering a short DRX
cycle, it will switch to a long DRX cycle to save power.
The period before the UE switches to a long DRX cycle is called the lifetime of the short
DRX cycle. The lifetime is measured by the number of times the short DRX cycle repeats.
The DRX Short Cycle Timer determines how long the short DRX cycle runs. The
DrxParaGroup.DrxShortCycleTimer parameter sets the time for the DRX Short Cycle
Timer. After the DRX Short Cycle Timer expires, the UE uses the long DRX cycle.
3.5 DRX Parameters for Various Scenarios

UEs enter the active state and sleep state based on DRX configurations, as described in the
previous chapters.
For common services on common UEs, users can configure one set of DRX parameters. For
details, see 3.5.1 DRX Parameters for VoIP.
For special UEs or ANR measurements, users can configure special DRX parameters. For
details, see 3.5.2 DRX Parameters for Special UEs and 3.5.3 DRX Parameters for ANR
Measurements.
Table 3-4 lists the parameters for each scenario.
Table 3-4 DRX parameters for various scenarios
DRX
Parame
ter
Name
DRX Parameters for
Common UEs
DRX Parameters
for Special UEs
DRX Parameters for ANR
Measurements
VoI
P
Ser
vice
s
Non-VoIP Services Intra-RAT Inter-RAT
Long
DRX
Cycle
DrxParaGroup.LongDrx
Cycle
Drx.LongDrxCy
cleSpecial
Drx.LongDrx
CycleForAnr
Drx.LongDRX
CycleforIRatA
nr
Short-
cycle
DRX
support
ed
indicati
on
DrxParaGroup.Support
ShortDrx
Drx.SupportSho
rtDrxSpecial
N/A
Short
DRX
Cycle
N/A DrxParaGroup.Sh
ortDrxCycle
Drx.ShortDrxCy
cleSpecial
N/A
DRX
Short
Cycle
Timer
N/A DrxParaGroup.DR
XShortCycleTime
r
Drx.DrxShortCy
cleTimerSpecial
N/A
On
Duratio
n
Timer
DrxParaGroup.OnDurat
ionTimer
Drx.OnDuration
TimerSpecial
N/A
DRX
Inactivi
ty
Timer
DrxParaGroup.DrxInact
ivityTimer
Drx.DRXInactivi
tyTimerSpecial
N/A

DRX
Retrans
mission
Timer
DrxParaGroup.DRXReT
xTimer
N/A N/A
NOTE:
"N/A" in Table 3-4 means that no parameters are involved in the corresponding scenario.
3.5.1 DRX Parameters for VoIP
For VoIP, a set of special DRX parameter settings is available to reduce UE power
consumption while maintaining VoIP capacity.
As VoIP services have a QCI of 1, the DRX parameters for QCI 1 can be used for VoIP
services. As bearers with QCI 5 are set up for IMS signaling transmission during VoIP
services, the DRX parameters for QCI 5 also need to be set.
When semi-persistent scheduling is enabled, configuring short DRX cycles for VoIP is not
recommended. When the UE has multiple bearers with different QCIs (for example, QCI 1,
QCI 5, and QCI 9), the DrxParaGroup.LongDrxCycle parameter for QCI 1 must be set to
the minimum value so that the eNodeB selects the DRX parameters for QCI 1 as the DRX
parameters for this UE.
Long DRX Cycle for VoIP
A long DRX cycle is specified by the DrxParaGroup.LongDrxCycle parameter.
The VoIP scheduling period is 20 ms. When semi-persistent scheduling is disabled, it is
recommended that the DrxParaGroup.LongDrxCycle parameter for QCI 1 be set to
SF40(40 subframes). When semi-persistent scheduling is enabled, it is recommended that
the DrxParaGroup.LongDrxCycle parameter for QCI 1 be set to SF20(20 subframes).
 If the parameter value is too small, the UE will probably stay in the active state and
consume more power.
 If the parameter value is too large, the VoIP scheduling may be performed during
sleep time. This delays packet transmission and affects user experience.
Short DRX Cycle for VoIP
If the long DRX cycle configured for VoIP is shorter than or equal to 20 ms, configuring a
short DRX cycle is not recommended. If a short DRX cycle is configured, less power will be
saved and no obvious decrease will be seen in service delay.
On Duration Timer for VoIP
Based on the number of UEs with VoIP services, set an appropriate value for the On Duration
Timer, which is specified by the DrxParaGroup.OnDurationTimer parameter. If there are
a large number of UEs with VoIP services, set a large value for this parameter to ensure the
scheduling of VoIP services.

It is recommended that the DrxParaGroup.OnDurationTimer parameter for QCI 1 be set
to PSF10(10 PDCCH subframes).
DRX Inactivity Timer for VoIP
It is recommended that the DrxParaGroup.DrxInactivityTimer parameter for QCI 1 be set
to PSF80(80 PDCCH subframes).
DRX Retransmission Timer for VoIP
It is recommended that the DrxParaGroup.DrxReTxTimer parameter for QCI 1 be set to
SF8(8 subframes).
Recommended DRX Parameter Settings for VoIP
Table 3-5 lists the recommended DRX parameter settings for VoIP when semi-persistent
scheduling is enabled.
Table 3-5 Recommended DRX parameter settings for VoIP when semi-persistent scheduling
is enabled
Parameter ID Recommended Value
DrxParaGroup.LongDrxCycle SF20
DrxParaGroup.onDurationTimer PSF10
DrxParaGroup.DrxInactivityTimer PSF80
DrxParaGroup.DrxReTxTimer SF8
DrxParaGroup.SupportShortDrx UU_DISABLE
Table 3-6 lists the recommended DRX parameter settings for VoIP when semi-persistent
scheduling is disabled.
Table 3-6 Recommended DRX parameter settings for VoIP when semi-persistent scheduling
is disabled
Parameter ID Recommended Value
DrxParaGroup.LongDrxCycle SF40
DrxParaGroup.onDurationTimer PSF10
DrxParaGroup.DrxInactivityTimer PSF80
DrxParaGroup.DrxReTxTimer SF8
DrxParaGroup.SupportShortDrx UU_DISABLE
3.5.2 DRX Parameters for Special UEs
Not all UEs are sensitive to power consumption. For example, data cards or UEs with a
sufficient power supply focus on service delay rather than power consumption. These UEs

are called special UEs. The subscriber profile ID for RAT/frequency priority (RFSP) function
allows operators to designate a UE as a special UE and use special DRX parameters for this
UE to improve service performance and increase energy efficiency.
On the Evolved Packet Core (EPC) side, the UE RFSP is an integer ranging from 1 to 256.
Operators can define the RFSP and bind it to the mobile station international ISDN number
(MSISDN) of the UE. When the UE accesses the EPC, the RFSP of the UE is included in the
INITIAL CONTEXT SETUP REQUEST message and sent to the eNodeB over the S1
interface.
On the eNodeB side, operators can set the SpidCfg.Spid parameter to an integer ranging
from 1 to 256 on the U2000 or Web LMT. When the RFSP value of the UE is the same as the
SpidCfg.Spid parameter value and the SpidCfg.DrxStatus parameter is set to FALSE, the
eNodeB considers the UE to be a special UE. Otherwise, the eNodeB considers the UE to be
a common UE.
On the UE side, the UE reports its type to the eNodeB using the UE-EUTRA-Capability IE in
a UECapabilityInformation message. If the UE-EUTRA-Capability IE contains
noBenFromBatConsumpOpt, the UE is a special UE. Otherwise, the UE is a common UE.
The UE type (common or special) is reported on both the eNodeB and UE sides. The eNodeB
compares the results reported on the two sides. When the results are inconsistent, the eNodeB
considers the UE to be a special UE. When the results are consistent, the eNodeB identifies
the UE type based on the results and uses the appropriate DRX feature.
The working mode of special UEs is the same as that of common UEs except that DRX
parameters configured for special UEs are different from those configured for common UEs.
3.5.3 DRX Parameters for ANR Measurements
ANR measurements require a relatively long sleep time. If the
DrxParaGroup.LongDrxCycle parameter value is too small, ANR measurements cannot
be completed during this period. If the value is too large, the scheduling delay will be so long
that it fails to meet quality of service (QoS) requirements. When an eNodeB receives a
special-DRX start indication during ANR measurement, the eNodeB configures or
reconfigures a relatively large value for the long DRX cycle, during which UEs perform
ANR measurements in sleep time.
The eNodeB configures the long DRX cycle and the UE performs ANR measurements in
sleep time regardless of whether the general DRX switch Drx.DrxAlgSwitch is set to ON
or OFF.
 If the cells to be measured are E-UTRAN cells, the eNodeB will use the value of the
Drx.LongDrxCycleForAnr parameter as the long DRX cycle.
 If the cells to be measured are GERAN or UTRAN cells, the eNodeB will use the
value of the Drx.LongDRXCycleforIRatAnr parameter as the long DRX cycle.
4 Dynamic DRX

This chapter describes the implementation principles of dynamic DRX. For engineering
guidelines, see 9 Engineering Guidelines for LOFD-00110501 Dynamic DRX.
4.1 Introduction
Definition
Dynamic DRX allows eNodeBs to determine whether to reduce UE power consumption or
signaling overhead based on manual configurations when the amount of UE power
consumption increases rapidly or signaling overhead is high because of UE access to the
network.
Dynamic DRX can be used in the following scenarios:
 Networks where smart terminals are mainstream
 Services that use small, sparse packets
 Services that use heartbeat packets
4.1.2 Benefits
Dynamic DRX provides the following benefits but cannot provide all these benefits
simultaneously:
 Reduces UE power consumption. When UE power consumption is high, the eNodeB
sends different DRX parameters to UEs in the synchronization state and UEs in the
out-of-synchronization states, instructing them to dynamically switch between two
sets of DRX parameters.
 Reduces signaling overhead by reducing the amount of RRC connection
establishment and release signaling for services that use small, sparse packets or
heartbeat packets.
The UE inactivity timer is increased to allow UEs to stay in connected mode longer in
the case of high signaling overhead caused by UEs' access to the network.
4.1.3 Process
Figure 4-1 shows the dynamic DRX process.

Figure 4-1 Dynamic DRX process
The dynamic DRX process is described as follows:
1. Dynamic DRX entry phase
After the UE accesses the network, the eNodeB determines whether the UE meets the
conditions for entering dynamic DRX mode. When the conditions are met, the
eNodeB sends the UE an RRC Connection Reconfiguration message with the DRX-
Configuration IE set to setup. The UE then enters dynamic DRX mode based on other
parameters in this IE. For details, see 4.2.1 Entry Conditions.
2. Dynamic DRX execution phase
After the UE enters dynamic DRX mode, the eNodeB determines whether the UE
enters power saving or reduced signaling mode based on the

RrcConnStateTimer.UeInactivityTimerDynDrx parameter value. For details, see 4.3
Principles.
3. Dynamic DRX exit phase
The eNodeB determines whether the UE meets the conditions for exiting dynamic
DRX mode. When the conditions are met, the eNodeB sends the UE an RRC
Connection Reconfiguration message with the DRX-Configuration IE set to release.
When the UE receives the message, it immediately clears all the DRX parameters
stored locally and exits dynamic DRX mode. For details, see 4.2.2 Exit Conditions.
When certain network and UE conditions are met, the eNodeB instructs UEs to enter or exit
dynamic DRX mode. This section describes the entry and exit conditions.
Dynamic DRX is controlled by the DynDrxSwitch(DynDrxSwitch) option of the
CellAlgoSwitch.DynDrxSwitch parameter.
When the DynDrxSwitch(DynDrxSwitch) option of the CellAlgoSwitch.DynDrxSwitch
parameter is selected, dynamic DRX is enabled and the eNodeB delivers the RRC
Connection Reconfiguration message with the DRX-Configuration IE set to setup. The UE
then enters dynamic DRX mode based on other parameters in this IE.
Before dynamic DRX is enabled, the following DRX parameters must be configured:
 Parameters for the synchronization state, including DrxParaGroup.LongDrxCycle,
DrxParaGroup.OnDurationTimer, and DrxParaGroup.DrxInactivityTimer
 Parameters for the out-of-synchronization state, including
CellDrxPara.LongDrxCycleUnsync, CellDrxPara.OndurationTimerUnsync,
and CellDrxPara.DrxInactivityTimerUnsync
The value of the RrcConnStateTimer.UeInactivityTimerDynDrx parameter determines
whether to reduce UE power consumption or network signaling overhead.
The UE exits dynamic DRX mode in any of the following situations:
 The UE exits dynamic DRX mode after it receives an RRC Connection
Reconfiguration message with the DRX-Configuration IE set to release and clears all
the saved DRX parameters. The eNodeB sends this message if any of the following
conditions is met:
o The QCI of a new service does not allow UEs to enter dynamic DRX mode.
The DrxParaGroup.EnterDrxSwitch parameter is set to OFF(Off) for the
corresponding QCI.

o The traffic volume of the UE is heavy.
The measured traffic volume is greater than the
CellDrxPara.FddExitDrxThd parameter value during the period specified
by the CellDrxPara.DataAmountStatTimer parameter.
NOTE:
If the CellDrxPara.FddExitDrxThd parameter is set to 1000, the UE will
not exit dynamic DRX mode.
 The DynDrxSwitch(DynDrxSwitch) option of the CellAlgoSwitch.DynDrxSwitch
parameter is deselected, and the eNodeB instructs the UE to exit dynamic DRX mode
during RRC connection reconfiguration.
 The UE in connected mode experiences an RLF when radio conditions deteriorate.
 During a handover, the eNodeB instructs the UE to exit DRX mode. After the
handover, the UE determines whether to reenter dynamic DRX mode according to the
entering conditions.
 The UE is in the TTI bundling state.
4.3 Principles
To allow smart terminals to stay in sleep state longer and consume less power, the eNodeB
selects different DRX parameters for UEs in synchronization and out-of-synchronization
states based on the RrcConnStateTimer.UeInactivityTimerDynDrx and
RrcConnStateTimer.UlSynTimerDynDrx parameter settings. Figure 4-2 shows how a UE
switches between different states.

Figure 4-2 UE state switching
The eNodeB delivers dynamic DRX parameters based on UE status:
 When the UE is in the synchronization state, the eNodeB sends DRX parameters for
the synchronization state to the UE. If the UE does not receive or transmit data during
the period specified by the RrcConnStateTimer.UlSynTimerDynDrx parameter,
the UE will enter the out-of-synchronization state.
After the timer specified by the RrcConnStateTimer.UlSynTimerDynDrx
parameter expires, the eNodeB continues to maintain synchronization for the UE for a
protection period of at least 2s to ensure that the DRX parameters for the out-of
synchronization state can be correctly sent to the UE.
When the timer specified by the TimeAlignmentTimer.TimeAlignmentTimer
parameter is about to expire during this protection period, the eNodeB continues to
maintain synchronization for the UE by sending the timing advance (TA) command to
the UE. The purpose is also to ensure that the DRX parameters for the out-of
synchronization state can be correctly sent to the UE.
After the protection period elapses, the eNodeB no longer maintains synchronization
for the UE, that is, the eNodeB no longer sends the TA command to the UE. The UE
enters the out-of-synchronization state only after the timer specified by the
TimeAlignmentTimer.TimeAlignmentTimer parameter expires, as shown in
Figure 4-3.

 When the UE is in the out-of-synchronization state, the eNodeB sends DRX
parameters for the out-of-synchronization state to the UE.
o If the UE does not receive or transmit data during the period specified by the
RrcConnStateTimer.UeInactivityTimerDynDrx parameter, the UE will
enter idle mode.
o If a new service arrives within the period specified by the
RrcConnStateTimer.UeInactivityTimerDynDrx parameter, the UE will
enter the synchronization state and the eNodeB sends DRX parameters for the
synchronization state to the UE again.
 When the UE is in idle mode and it has new data to receive or transmit, the UE enters
the synchronization state and the eNodeB sends DRX parameters for the
synchronization state to the UE again.
Figure 4-3 Protection mechanism
Dynamic DRX is controlled by the CellAlgoSwitch.DynDrxSwitch parameter. The
principles of dynamic DRX are as follows:
1. If the value of RrcConnStateTimer.UeInactivityTimerDynDrx is greater than the
value of RrcConnStateTimer.UlSynTimerDynDrx, the eNodeB may not maintain
the synchronization state for the UE and may configure DRX parameters for the out-
of-synchronization state.
o Setting the RrcConnStateTimer.UeInactivityTimerDynDrx parameter to a
larger value increases the time the UE is in connected mode, reduces the

number of transitions between connected and idle modes, reduces the
signaling overhead in frequent connection establishments and releases for
small, sparse packets or heartbeat packets, but saves less UE power.
o Setting the RrcConnStateTimer.UlSynTimerDynDrx parameter to a
smaller value decreases the time the eNodeB synchronizes with the UE and
saves more UE power.
NOTE:
If the CellAlgoSwitch.DynDrxSwitch parameter is on, the settings of the
RrcConnStateTimer.UeInactiveTimer and
RrcConnStateTimer.UlSynTimer parameters take effect only for UEs not
supporting DRX.
2. When the UE is in the synchronization state, the eNodeB assigns the UE the DRX
parameters for the synchronization state. When the timer defined by the
RrcConnStateTimer.UlSynTimerDynDrx parameter expires, the eNodeB assigns
the UE the DRX parameters for the out-of-synchronization state.
The eNodeB dynamically switches between the two types of DRX parameters based on UE
status.
5 High-Mobility-Triggered Idle Mode
This chapter describes the implementation principles of the high-mobility-triggered idle mode
feature. For engineering guidelines, see 10 Engineering Guidelines for LOFD-00110502
High-Mobility-Triggered Idle Mode.
5.1 Introduction
If UEs frequently move between cells while staying in connected mode for a long period of
time, a large number of handovers will be triggered, causing excessive handover signaling.
Especially after dynamic DRX is enabled, UEs stay in connected mode for a prolonged
period of time. In this scenario, if UEs move fast, instead of cell reselections, more handovers
are triggered. To prevent handover signaling from affecting eNodeB performance, the
eNodeB uses the high-mobility-triggered idle mode feature.
Definition
High-mobility-triggered idle mode is a state in which the number of handovers and the
amount of related signaling decrease after UEs enter idle mode based on their movement
speeds and the packet sending state.

The high-mobility-triggered idle mode feature is mainly used on mobile networks where most
UEs are smart terminals. This feature is suitable for UEs that stay in connected mode and
move frequently, especially for UEs in dynamic DRX mode.
5.1.2 Benefits
The high-mobility-triggered idle mode feature reduces the number of handovers and the
amount of signaling on the entire network, minimizing the impact of handover signaling on
network stability while maintaining user experience.
5.2 Principles
In high-mobility-triggered idle mode, eNodeBs determine whether to release UEs based on
their movement speeds, packet sending states, and camping times. For triggering conditions,
see Working Mechanism.
Characteristics of Fast-Moving UEs
LTE networks are often deployed in hot spots that have the following characteristics:
 Densely populated areas where people are often on the move
 Small spacing between eNodeBs
In these hot spots, handovers are easily triggered for fast-moving UEs.
Figure 5-1 shows that a UE moves between cells in a hot spot.
Figure 5-1 UE movement
Table 5-1 and Table 5-2 list the movement speeds and camping times for a UE passing
through the center coverage areas of cells with radii of 300 m and 500 m.
Table 5-1 Movement speed and camping time of a UE in a cell with a radius of 300 m

Movement Speed (km/h) Camping Time (Seconds)
[30-60] [18-36]
[60-120] [18-9]
> 120 < 9
Table 5-2 Movement speed and camping time of a UE in a cell with a radius of 500 m
Movement Speed (km/h) Camping Time (Seconds)
[30-60] [30-60]
[60-120] [15-30]
> 120 < 15
In reality, most UEs do not pass through the cell center and the camping time of these UEs is
even shorter.
Figure 5-2 shows the numbers of service requests triggered by heartbeats.
Figure 5-2 Numbers of service requests triggered by heartbeats
In Figure 5-2, the x-axis specifies the service types and the y-axis specifies the number of
network access requests triggered by heartbeats within an hour. The heartbeat period is equal
to 3600 divided by the number of service requests.
You can extrapolate the following from the data shown in Figure 5-2:
 The heartbeat periods for most services are 180s or longer.
 In each heartbeat period, the UE stays in connected mode for a long time.
During a heartbeat period, if the UE is moving fast, it may pass through several cells
and be handed over many times. For example, during a heartbeat period of 180s, a UE
moving at 30 km/h may pass through five 300 m radius cells. If the UE stays in
connected mode in this period, multiple handovers will be performed. During this
process, no service data is transmitted.

 Most UEs have only heartbeat packets to transmit and receive for an extended period,
a period even longer than the time the UEs take to process other services.
Working Mechanism
The high-mobility-triggered idle mode feature is enabled if the
CellAlgoSwitch.HighMobiTrigIdleModeSwitch parameter is set to ENABLE(Enable).
To avoid a handover, the eNodeB triggers the S1 release procedure after receiving the
measurement report from a UE and instructs the UE to enter idle mode when all of the
following conditions are met:
 The movement speed of the UE is greater than or equal to 30 km/h during the
camping.
 The UE does not transmit data when it is camping on a cell.
 The camping time is greater than or equal to 10s.
As the UE has data to transmit only when a heartbeat period begins, instructing the UE to
enter idle mode has no impact on the UE's services.
Figure 5-3 shows the working mechanism of the high-mobility-triggered idle mode feature.
Figure 5-3 Working mechanism of the high-mobility-triggered idle mode feature
6 Related Features
6.1 Features Related to LBFD-002017 DRX
Prerequisite Features

None
Mutually Exclusive Features
LOFD-001008 Ultra High Speed Mobility
When DRX is enabled in ultra high speed mobility scenarios, the handover success rate
decreases, the service drop rate increases, and other performance indicators may also
deteriorate.
Impacted Features
Scheduling
DRX has the following impact on scheduling:
 When no system information is being delivered and no paging is performed, the
eNodeB enables resource scheduling for the UE only during active time.
 In DRX mode, the UE sends an SR when there is data in the UE buffer, regardless of
whether the UE is in the active state. Even if the UE is in the sleep state, it
immediately switches to the active state and begins to monitor the PDCCH. When the
UE receives the data initially sent on the PDCCH, the eNodeB starts the DRX
Inactivity Timer to increase the active time until the UE obtains resources.
 For downlink scheduling (provided in LBFD-002025 Basic Scheduling and LBFD-
002005 DL Asynchronous HARQ), HARQ feedback takes priority over DRX. That
is, UEs can provide HARQ feedback regardless of whether they are in active time.
 For uplink scheduling (provided in LBFD-002025 Basic Scheduling and LBFD -
002006 UL Synchronous HARQ), the eNodeB allows the TTI during which the
uplink retransmitted data in the pending state to be assigned uplink scheduling grant
during active time. This facilitates ACK/NACK feedback or retransmission
scheduling. During the TTI, UEs need to receive HARQ feedback.
 There is a small chance that false detection of SRs may result in inconsistent DRX
status information between the eNodeB and the UE. When DRX is enabled, uplink
and downlink BLERs may increase. To reduce false SR detection, you are advised to
take one or more of the following actions:
o Set the CellUlschAlgo.SriFalseDetThdSwitch parameter to ON(ON) when
there are no VoIP services.
o Set the CellAlgoSwitch.UlSchSwitch parameter to PuschDtxSwitch-1. This
setting may lead to an increase in the service drop rate in weak coverage or
strong interference scenarios.
o Set the CellAlgoSwitch.UlSchSwitch parameter to
UlEnhancedSrSchSwitch-1.
For details, see Scheduling Feature Parameter Description.
 When the UE is in the uplink pre-scheduling state, the eNodeB instructs the UE to
exit the uplink pre-scheduling state after the UE enters DRX mode. Upon exiting
DRX mode, the UE enters the pre-scheduling state.
 When the UE is in the TTI bundling state (function provided in LOFD-001048 TTI
Bundling), the eNodeB does not instruct the UE to enter DRX mode unless required

during ANR measurement. When the UE is in DRX mode, the eNodeB instructs the
UE to exit DRX mode after TTI bundling is initiated. When the UE is performing
ANR measurements in DRX mode, the eNodeB does not instruct the UE to exit DRX
mode.
Connection Management
The UE immediately responds to random access requests, regardless of whether it is in the
active state.
Mobility Management in Connected Mode
During different stages of a handover, DRX functions in different ways:
 When the handover process starts:
After receiving a handover decision indicating that the handover request has been
accepted, the source eNodeB sends an RRC Connection Reconfiguration message to
instruct the UE to exit DRX mode. If this happens during sleep time, the UE will not
receive the message until after the next active time arrives.
 When the handover succeeds:
The eNodeB determines whether to apply DRX to the UE based on whether DRX is
enabled.
 When the handover fails:
The UE remains in the current cell, and the source eNodeB checks whether the UE
can enter DRX mode.
NOTE:
For details about the handover process in DRX mode, see Intra-RAT Mobility
Management in Connected Mode Feature Parameter Description
Measurement
When measurement configurations conflict with DRX configurations, measurement takes
priority.
NOTE:
For details about the handover process in DRX mode, see Intra-RAT Mobility Management in
Connected Mode Feature Parameter Description
UE measurement in the LTE system is classified into common measurement and gap-assisted
measurement. UE measurement in the LTE system is classified into common measurement
and gap-assisted measurement. Common measurement is used for intra-frequency

measurement, and gap-assisted measurement is used for inter-frequency measurement and
inter-radio access technology (RAT) measurement.
 Common measurement
For random access, the UE enters the active state if it is in sleep time and then uses
the first available random access channel (RACH) to send UL measurement reports.
In other scenarios, the UE sends measurement reports only in active time. If the UE is
in the sleep state, it will send measurement reports in active time in the next DRX
cycle.
 Gap-assisted measurement
In gap-assisted measurement, gaps with 6 ms each are generated every 40 ms or 80
ms. To reduce the impact on data transmission, the eNodeB needs to generate gaps in
sleep time. If gaps have been configured for the UE, the UE cannot enter DRX mode.
The UE cannot enter DRX mode in either of the following situations:
o Periodic measurement reporting based on the gap-assisted measurement has
been enabled for the modules that have subscribed to it. Such a module may
be the FARS cell tracing module or the Nastar module.
o Some operations are performed by mistake, which can be checked by querying
the operation logs on the U2000.
As shown in Figure 6-1, gaps are generated every 40 ms, six TTIs earlier than the
DRX cycle.
Figure 6-1 DRX cycles and gap-assisted measurements
CQI
In DRX mode, the UE turns off its receiver intermittently. When the UE is in the sleep state,
the eNodeB does not deliver channel quality indicator (CQI) or sounding reference signal

(SRS) measurement configurations and the UE reports the measurements in compliance with
the following protocol requirements:
 For UEs complying with 3GPP Release 8, CQIs, precoding matrix indicators (PMIs),
and rank indicators (RIs) can be reported over the PUCCH only in active time.
 For UEs complying with 3GPP Release 9, CQIs, PMIs, and RIs can be reported over
the PUCCH only in the On Duration.
The CellDrxPara.CqiMask parameter controls when CQIs, PMIs, and RIs can be reported
in the On Duration:
 If this parameter is set to ON, CQIs, PMIs, and RIs can be reported only in the On
Duration.
 If this parameter is set to OFF, CQIs, PMIs, and RIs can be reported in active time.
 SRSs can be sent only in active time.
CQI configurations affect the settings of DRX parameters controlled by the eNodeB. The
eNodeB can automatically adjust the value of the operator-defined
DrxParaGroup.OnDurationTimer parameter so that the number of CQIs reported by the UE
during a period meets the requirements for downlink scheduling performance.
NOTE:
Currently, most UEs that comply with 3GPP Release 9 do not support CQI mask. Retain the
default value OFF of the CellDrxPara.CqiMask parameter for these UEs.
Timing Control
When SRSs are used for timing control, the TA measurement precision for uplink
synchronization depends on the number of times the UE reports SRSs. To acquire sufficient
SRSs, the eNodeB adaptively adjusts the value of the DrxParaGroup.LongDrxCycle
parameter based on the SRS configurations of the UE and the period set for delivery of TA
measurements to the UE. Therefore, the value delivered to the UE may differ from that set by
MML commands. The value must be a multiple of 10 ms because the SRS reporting period is
a multiple of 10 ms and the CQI reporting period is a multiple of 5 ms for Huawei eNodeBs.
The specific value depends on other parameters:
 When TimeAlignmentTimer.TimingAdvCmdOptSwitch is set to ON, the
eNodeB does not restrict the setting of DrxParaGroup.LongDrxCycle to ensure
timing performance. However, it is recommended that the cycle not exceed 320 ms.
Settings greater than 320 ms may affect uplink timing performance.
 When TimeAlignmentTimer.TimingMeasMode is set to ALLMEASMODE, the
eNodeB does not impose restrictions on DRX parameter settings.
When demodulation reference signals (DMRSs) are used for timing control and DRX is
enabled, at least one active time must exist during the period set for delivery of TA
measurements so that the eNodeB can deliver scheduling information to trigger the delivery.
NOTICE:

The eNodeB configures DRX parameters for UEs based on parameter validity, protocol
compatibility, and chip compatibility. For example, UEs with Qualcomm chips consider the
settings of certain DRX parameters invalid and the RRC connection needs to be
reestablished. These DRX parameters may be adjusted after the validity check. Validity
check is performed to see whether:
 The long DRX cycle should be an integer multiple of the short DRX cycle. Otherwise,
the short DRX cycle is automatically adjusted to an appropriate value.
 The long DRX cycle should be an integer multiple of 10. Otherwise, it is
automatically adjusted to an appropriate value.
 The OnDurationTimer value should be less than the short DRX cycle. Otherwise, the
short cycle is not configured.
 The OnDurationTimer value should be less than the long DRX cycle. Otherwise, the
DRX parameters are not configured.
Carrier Aggregation
When carrier aggregation (CA) is enabled, the DRX mechanism works as follows:
 If DRX is enabled in both the primary serving cell (PCell) and the secondary serving
cell (SCell) for a CA UE, when the serving eNodeB of the PCell sends an MCE
command to activate the SCell, the eNodeB will handle the UE states in the cells as
follows:
o If the UE has entered DRX mode in the PCell, the eNodeB will instruct the
UE to enter DRX mode in the SCell, with the DRX parameters for the PCell
applied to the SCell.
o If the UE has not entered DRX mode in the PCell, the eNodeB will determine
whether the UE should enter DRX mode in both the PCell and SCell based on
the traffic volume of the UE.
 If DRX is enabled in the PCell but disabled in the SCell, the UE will exit DRX mode
(if it has entered this mode) after the SCell is configured for the UE.
 If DRX is disabled in the PCell, the UE will not enter DRX mode in either the PCell
or the SCell, regardless of whether DRX is enabled in the SCell.
For details about CA features, see Carrier Aggregation Feature Parameter Description.
LOFD-001007 High Speed Mobility
In high speed mobility scenarios, if the long DRX cycle is 40 ms or shorter, no obvious effect
will be seen in UE power saving; if the long DRX cycle is longer than 40 ms, SRS-based
timing and reference signal received power (RSRP) measurement will be affected. Both
configurations may result in a low handover success rate, a high service drop rate, a large
number of RRC connection reestablishments, and a low reestablishment success rate.
Therefore, DRX is not recommended for high speed mobility scenarios.
6.2 Features Related to LOFD-00110501 Dynamic DRX

None
LOFD-001008 Ultra High Speed Mobility
When LOFD-00110501 Dynamic DRX is enabled for ultra high speed mobility scenarios, the
handover success rate decreases, the service drop rate increases, and other performance
indicators may also deteriorate.
Impacted Features
LBFD-002017 DRX
The DRX parameters for UEs in the synchronization state used in LOFD-00110501 Dynamic
DRX are the same as the DRX parameters used in LBFD-002017 DRX. However, the two
features do not depend on each other.
When LOFD-00110501 Dynamic DRX is enabled, the switch for LBFD-002017 DRX cannot
control whether the DRX parameters for UEs in the synchronization state take effect.
Other features
The other impacted features of LOFD-00110501 Dynamic DRX are the same as those of
LBFD-002017 DRX. For details, see section 6.1 Features Related to LBFD-002017 DRX.
6.3 Features Related to LOFD-00110502 High-Mobility-
Triggered Idle Mode
None
None
Impacted Features
None
7 Network Impact
7.1 LBFD-002017 DRX
System Capacity

None
Network Performance
The sleep time in DRX helps reduce UE power consumption but may increase delay for
ongoing services, resulting in decreased traffic volume or throughput.
DRX has the following impacts on network performance:
 If the value of the DrxParaGroup.OnDurationTimer parameter is too small, the
VoIP capacity will decrease, or the uplink and downlink packet loss rates for voice
services in heavy-load scenarios will increase. A large value for this parameter results
in reduced UE power saving.
 If the value of the DrxParaGroup.LongDrxCycle parameter is too large, the CQI
reporting period will increase, and the traffic volume or throughput under functions
such as scheduling and multiple-input-multiple-output (MIMO) will decrease. In
addition, the handover success rate decreases, and the service drop rate increases.
These impacts are more obvious in high-speed mobility or weak-coverage scenarios.
If the value of the DrxParaGroup.LongDrxCycle parameter is too small, the UE
power saving effect will deteriorate.
 If the value of the DrxParaGroup.DRXInactivityTimer parameter is too small, the
uplink and downlink cell throughput as well as user-perceived uplink and downlink
throughput may decrease, or the uplink and downlink packet loss rates will increase
for voice services when there are a large number of UEs in connected mode (for
example, when the average number of UEs in connected mode exceeds 100). When
there are no VoIP services, you are advised to set the
DrxParaGroup.DRXInactivityTimer parameter to be greater than or equal to 80
ms.
 If the sleep time is too short, ANR measurements will fail.
 UEs cannot be scheduled in sleep time. In this situation, the resource allocation for
TA measurements is affected. Consequently, the L.RRC.StateTrans.Syn2Unsyn
counter value and the number of RRC connection reestablishments are affected. As a
result, the random access success rate is affected.
 After DRX is enabled, UEs can report CQIs only during active time. If the channel
quality of cell edge users (CEUs) fluctuates significantly during sleep time, the UEs
cannot report CQIs for modulation and coding scheme (MCS) adjustment in a timely
manner. As a result, the bit error rate (BER) for CEUs may increase, and the downlink
packet loss rate for voice services or data services may rise.
 When the UE initiates CSFB during a handover, the eNodeB preferentially processes
the handover but fails to process the CSFB. After the handover, the mobility
management entity (MME) initiates the CSFB again. When DRX is enabled, the
presence of the sleep time increases the probability of CSFB during handovers. In this
case, the number of CSFB-triggered handover failures and the number of CSFB-
triggered handover attempts may increase, while the number of successful CSFB
executions remains unchanged. As a result, the CSFB-triggered handover success rate
may decrease, but this has a very little impact on user experience.
 After DRX is enabled, multiple small packets accumulated during sleep time can be
scheduled all at once. The control channel element (CCE) usage and equivalent CCE

usage may decrease. However, the uplink/downlink cell throughput or user-perceived
uplink/downlink throughput may increase.
If there is severe uplink/downlink interference, cell edge users are less likely to be
scheduled and cell center users are more likely to be scheduled. If the PRB usage
remains at the highest level, DRX may increase the average CQI, uplink/downlink
cell throughput, or user-perceivable uplink/downlink throughput.
 After DRX is enabled, the long DRX cycle specified by the
DrxParaGroup.LongDrxCycle parameter must be shorter than the timer length
specified by the RlcPdcpParaGroup.DiscardTimer parameter. Otherwise, packet
loss may occur for ping services, small packet services, or VoIP services, especially
for services of QCIs 1 and 5.
 To reduce the CPU usage, it is recommended that:
o DRX be disabled for heavy traffic scenarios. Otherwise, multiple timers need
to be maintained for each UE. The CPU consumption of the baseband
processing board increases with the increasing number of UEs.
o The CellDrxPara.FddEnterDrxThd and CellDrxPara.FddExitDrxThd
parameters be set to 1000. Otherwise, a large amount of RRC connection
reconfiguration signaling is generated and the CPU usage of the main control
board or BBP is high.
 DRX takes effect once the E-UTRAN radio access bearer (E-RAB) is set up, leading
to failures in UE pre-scheduling. At the same time, some UEs may fail to send SRs
due to compatibility issues. This leads to fluctuations in the E-RAB setup success
rate. It is recommended that the smart preallocation function be enabled to avoid these
issues.
 When DRX is enabled and the sleep time specified by the
DrxParaGroup.LongDrxCycle, DrxParaGroup.OnDurationTimer, or
DrxParaGroup.DRXInactivityTimer parameter is lengthened, the probability of
fault detection of SRs in sleep time increases. False detection of SRs causes the
eNodeB to periodically detect CQIs when UEs have not reported any. As a result, the
eNodeB detects a large number of random CQI values ranging from 0 to 15. This
leads to fluctuations in both the CQI distribution and the average CQI. For example,
when most UEs are close to the eNodeB and the proportion of high-order CQIs (for
example, CQIs 11 to 15) is very high, the average CQI may decrease. As these
random values are detected in sleep time (when the UEs have no data to transmit),
these random values have no impact on scheduling.
The impact on key performance indicators (KPIs) is dependent on the specific service type,
application scenario, and parameter configuration. Specific KPIs are not listed in this section.
NOTE:
When DRX is enabled, the eNodeB instructs the UE to exit the preallocation state. The
performance of TCP services with ping delay and a small size deteriorates, the uplink
throughput increases, and the number of RBs for uplink frequency-selective scheduling and
that for UL Comp decreases. For details, see Scheduling Feature Parameter Description.

In DRX mode, you can enable smart preallocation to reduce the impact of UE exiting the
preallocation state. However, the power saving effect will deteriorate as the smart
preallocation duration increases.
7.2 LOFD-00110501 Dynamic DRX
System Capacity
None
Network Performance
LOFD-00110501 Dynamic DRX has the same impact as LBFD-002017 DRX on network
performance. For details, see 7.1 LBFD-002017 DRX.
According to section 8.1.2.2 "E-UTRAN intra frequency measurements" in 3GPP TS 36.133
V10.0.0, the reference signal received power (RSRP) measurement period is an integer
multiple of the long DRX cycle. After DRX parameters for out-of-synchronization UEs are
set, the RSRP measurement period increases. As a result, the number of delayed handovers,
service drops, or RRC connection reestablishments increases.
When the RrcConnStateTimer.UeInactivityTimerDynDrx parameter is set to a large
value according to operations in 9.2 Required Information, the large value has the following
impacts:
 The total number of E-RAB releases decreases, while the number of abnormal E-RAB
releases slightly changes. The decreased number of E-RAB releases is equal to the
number of E-RABs in UE contexts when the UEs switch from the uplink
synchronization state to the uplink out-of-synchronization state.
To ensure the accuracy of the calculated service drop rate, add the value of the L.E-
RAB.Num.Syn2Unsyn counter to the denominator and subtract the value of the L.E-
RAB.Release.Unsyncounter from the denominator. The formula is as follows:
Service drop rate (%) = L.E-RAB.AbnormRel/(L.E-RAB.AbnormRel + L.E-
RAB.NormRel + L.E-RAB.Num.Syn2Unsyn - L.E-RAB.Release.Unsyn)
 The number of RRC connection establishments decreases significantly. In some
scenarios (for example, weak coverage scenarios), the number of failed RRC
connection setups does not decrease proportionally. The number of decreased RRC
connection setups converts into the number of times UEs switch from the out-of-
synchronization state to the synchronization state.
To ensure the accuracy of the calculated service RRC connection setup success rate,
add the value of the L.RRC.StateTrans.Unsyn2Syn.Succ counter to the numerator
and add the value of the L.RRC.StateTrans.Unsyn2Syn counter to the denominator.
The formula is as follows:

Service RRC connection setup success rate (%) = (L.RRC.ConnReq.Succ.Mt +
L.RRC.ConnReq.Succ.MoData + L.RRC.ConnReq.Succ.EMC +
L.RRC.ConnReq.Succ.HighPri + L.RRC.ConnReq.Succ.DelayTol +
L.RRC.StateTrans.Unsyn2Syn.Succ)/(L.RRC.ConnReq.Att.Mt +
L.RRC.ConnReq.Att.MoData + L.RRC.ConnReq.Att.EMC +
L.RRC.ConnReq.Att.HighPri + L.RRC.ConnReq.Att.DelayTol +
L.RRC.StateTrans.Unsyn2Syn)
 The number of E-RAB setups decreases significantly. In some scenarios (for example,
weak coverage scenarios), the number of failed E-RAB setups does not decrease
proportionately. The number of decreased E-RAB setups converts into the number of
times UEs switch from the out-of-synchronization state to the synchronization state.
To ensure the accuracy of the calculated E-RAB setup success rate, add the value of
the L.E-RAB.StateTrans.Unsyn2Syn.Succ counter to the numerator and add the
value of the L.E-RAB.StateTrans.Unsyn2Syn.Att counter to the denominator. The
formula is as follows:
E-RAB setup success rate (%) = (L.E-RAB.SuccEst + L.E-
RAB.StateTrans.Unsyn2Syn.Succ)/(L.E-RAB.AttEst + L.E-
RAB.StateTrans.Unsyn2Syn.Att)
 The number of UEs in connected mode increases.
 The number of handovers increases in networks with high UE mobility.
When dynamic DRX is enabled, dedicated preambles are used in the switching from the out-
of-synchronization state to the synchronization state caused by downlink data transmission
and the number of contention-based random access attempts decreases. If the number of
contention-based random access failures remains unchanged, the contention-based random
access success rate will decrease.
When dynamic DRX is enabled and the timer specified by the
RrcConnStateTimer.UlSynTimerDynDrx parameter expires, the eNodeB increases the
DrxParaGroup.LongDrxCycle parameter value (for example, 1280 ms). This long cycle
increases the probability of fault detection of SRs in sleep time. False detection of SRs causes
the eNodeB to periodically detect CQIs when UEs have not reported any. As a result, the
eNodeB detects a large number of random CQI values ranging from 0 to 15. This leads to
fluctuations in both the CQI distribution and the average CQI. For example, when most UEs
are close to the eNodeB and the proportion of high-order CQIs (for example, CQIs 11 to 15)
is very high, the average CQI may decrease. As these random values are detected in sleep
time (when the UEs have no data to transmit), these random values have no impact on
scheduling.
When dynamic DRX is enabled and the timer specified by the
RrcConnStateTimer.UlSynTimerDynDrx parameter expires, the eNodeB uses a
protection mechanism to ensure that the DRX parameters for the out-of-synchronization state
can be sent to the UE. During the protection period, if the UE has uplink or downlink data to
transmit or the eNodeB delivers a TA command to the UE, the values of the following
counters may fluctuate, as shown in Figure 7-1:

 L.RRC.StateTrans.Unsyn2Syn
 L.RRC.StateTrans.Syn2Unsyn
 L.RRC.StateTrans.Unsyn2Syn.Succ
 L.E-RAB.Num.Syn2Unsyn
 L.E-RAB.StateTrans.Unsyn2Syn.Succ
 L.E-RAB.StateTrans.Unsyn2Syn.Att
 L.E-RAB.Release.Unsyn
Figure 7-1 Counter fluctuation principles
7.3 LOFD-00110502 High-Mobility-Triggered Idle Mode
System Capacity
No impact.
Network Performance

This feature decreases the number of handovers for fast-moving UEs, reduces the impact of
handover signaling on the network, and lowers the CPU usage of the eNodeB.
8 Engineering Guidelines for LBFD-002017
DRX
This chapter provides guidelines for configuring LBFD-002017 DRX.
8.1 When to Use DRX
It is recommended that DRX be activated if operators focus on UE power saving and accept
DRX-induced service delay.
Before deploying DRX, collect information about whether mainstream UEs on the live
network support DRX. Consult manufacturers of the UE chips about potential interoperability
testing (IOT) compatibility issues.
8.3 Planning
RF Planning
N/A
Network Planning
N/A
Hardware Planning
N/A
8.4 Deployment
8.4.1 Requirements
Operating Environment
N/A
Transmission Networking
N/A

License
DRX is a basic feature and is not under license control.
This section describes the data that you need to collect for setting parameters. Required data
is data that you must collect for all scenarios. Collect scenario-specific data when necessary
for a specific feature deployment scenario.
There are three types of data sources:
 Network plan (negotiation not required): parameter values planned and set by the
operator
 Network plan (negotiation required): parameter values planned by the operator and
negotiated with the evolved packet core (EPC) or peer transmission equipment
 User-defined: parameter values set by users
Required Data
The following table describes the parameters that must be set in a CellDrxPara MO to
configure cell-level DRX parameters.
Paramete
r Name
Parameter ID Data
Source
Setting Notes
Local cell
ID
CellDrxPara.LocalCellId Network
plan
(negotiati
on not
required)
This parameter specifies a
cell's local ID. The local ID
uniquely identifies a cell under
an eNodeB.
FDD enter
DRX
threshold
CellDrxPara.FddEnterDrxThd Network
plan
(negotiati
on not
required)
DRX entry threshold for FDD.
 A smaller value for this
parameter results in a
lower probability of
entering DRX mode.
 A larger value for this
higher probability of
entering DRX mode.
 If
CellDrxPara.FddEnt
erDrxThd is set to
1000, the eNodeB does
not instruct the UE to
enter DRX mode based
on the traffic

Paramete
r Name
Parameter ID Data
Source
Setting Notes
measurements. Instead,
the UE directly enters
DRX mode.
FDD exit
DRX
threshold
CellDrxPara.FddExitDrxThd Network
plan
(negotiati
on not
required)
DRX exit threshold for FDD.
 A smaller value for this
higher probability of
exiting DRX mode.
 A larger value for this
lower probability of
exiting DRX mode.
 If
CellDrxPara.FddExit
DrxThd and
CellDrxPara.FddEnt
erDrxThd are set to
small values and the
difference between
them is small, the UE
enters and exits DRX
mode frequently.
 If
CellDrxPara.FddExit
DrxThd is set to 1000,
the eNodeB does not
instruct the UE to exit
DRX mode based on
the traffic
measurements. The UE
no longer exits DRX
mode after entering
DRX mode.
Data
amount
Statistic
timer
CellDrxPara.DataAmountStatTi
mer
Network
plan
(negotiati
on not
required)
This parameter specifies the
UE traffic measurement
period. The DRX algorithm
determines whether a UE
should exit or enter DRX mode
based on the UE traffic volume
measured during this period.
DRX CellDrxPara.DrxPolicyMode Network This parameter specifies a

Paramete
r Name
Parameter ID Data
Source
Setting Notes
Policy
Mode
plan
(negotiati
on not
required)
policy on DRX parameter
group selection for a UE with
its bearers allocated different
QCIs.
 When this parameter is
set to
DEFAULT(Default),
the DRX parameter
group with the smallest
DrxParaGroup.Long
DrxCycle parameter
value is selected for the
UE. If the
DrxParaGroup.Long
DrxCycle parameter
values specified for
different QCIs are the
same, the DRX
parameter group for the
QCI with the highest
priority defined by
3GPP is selected for the
UE.
 When this parameter is
set to
QCIPRIORITY(QCI
priority), the DRX
parameter group for the
QCI with the highest
priority is selected for
the UE. If no DRX
parameter group is
configured for the QCI
with the highest
priority, no DRX
parameter group is
selected for this UE.
DRX Start
Offset
Optimizati
on Switch
CellDrxPara.DrxStartOffsetOpt
Switch
Network
plan
(negotiati
on not
required)
This switch specifies whether
to optimize random
distribution of DrxStartOffset
values for UEs in the following
situations:
 Only SRS resources are

Paramete
r Name
Parameter ID Data
Source
Setting Notes
configured.
 Only periodic CQI
reporting is configured.
 Neither SRS resources
nor periodic CQI
reporting is configured.
If this switch is turned on,
DrxStartOffset values can be
randomly distributed within
the range of 0 to
(LongDrxCycle-1) for UEs
that are configured with only
SRS resources, or periodic
CQI reporting, or neither.
When the cell serves a large
number of UEs, the probability
that UEs are scheduled
centrally decreases, and the
downlink scheduling delay for
UEs decreases, and UE
downlink throughput increases.
It is recommended that this
switch be turned on when SRS
resources are not allocated for
UEs or there is a large number
of UEs in the cell.
Scenario-specific Data
Scenario 1: Setting DRX Parameters for Common UEs
The following table describes the parameters that must be set in a Drx MO to configure
eNodeB-level DRX parameters.
Parameter
Name
Parameter ID Data
Source
Setting Notes
DRX
switch
Drx.DrxAlgSwitch Network
plan
(negotiation
not
required)
This parameter specifies whether to
enable DRX. Set this parameter to ON if
DRX is required.
Short-
cycle DRX
Drx.ShortDrxSwitch Network
plan
This parameter specifies whether to use
short DRX cycles. Set this parameter to

Parameter
Name
Parameter ID Data
Source
Setting Notes
switch (negotiation
not
required)
ON if short DRX cycles are required.
The value ON is recommended in
scenarios with tight delay constraints.
The following table describes the parameters that must be set in a DrxParaGroup MO to
configure DRX parameter groups.
Paramete
r Name
Parameter ID Data
Source
Setting Notes
Local cell
ID
DrxParaGroup.LocalCellI
d
Networ
k plan
(negotia
tion not
required
)
This parameter specifies a cell's local
ID. The local ID uniquely identifies a
cell under an eNodeB.
DRX
parameter
group ID
DrxParaGroup.DrxParaGr
oupId
Networ
k plan
(negotia
tion not
required
)
This parameter specifies a DRX
parameter group.
Each group is mapped to a QCI.
Enter
DRX
Switch
DrxParaGroup.EnterDrxS
witch
Networ
k plan
(negotia
tion not
required
)
This parameter specifies whether the
bearers with a DRX parameter group
configured support DRX. A UE can
enter DRX mode only when all bearers
for the UE support DRX.
 The value OFF is
recommended for bearers with
tight delay constraints.
 The value ON is recommended
for bearers without tight delay
constraints.
On
Duration
Timer
DrxParaGroup.OnDuratio
nTimer
Networ
k plan
(negotia
tion not
required
)
This parameter specifies the length of
the On Duration Timer.
A larger parameter value results in a
longer active time and a shorter delay.
Set
DrxParaGroup.OnDurationTimer
to PSF10(10 PDCCH subframes) if

Paramete
r Name
Parameter ID Data
Source
Setting Notes
DrxParaGroup.LongDrxCycle is set
to SF320(320 subframes).
DRX
Inactivity
Timer
DrxParaGroup.DrxInactiv
ityTimer
Networ
k plan
(negotia
tion not
required
)
the DRX Inactivity Timer.
longer active time upon the arrival of
new data in the On Duration.
Set the
DrxParaGroup.DrxInactivityTimer
parameter to PSF100(100 PDCCH
subframes) if the
DrxParaGroup.LongDrxCycle
parameter is set to SF320(320
subframes).
DRX
Retransmi
ssion
Timer
DrxParaGroup.DrxReTxTi
mer
Networ
k plan
(negotia
tion not
required
)
the DRX Retransmission Timer.
Long
DRX
Cycle
DrxParaGroup.LongDrxC
ycle
Networ
k plan
(negotia
tion not
required
)
This parameter specifies the length of a
long DRX cycle.
longer sleep time and a longer delay.
When the
TimeAlignmentTimer.TimingAdvC
mdOptSwitch parameter is set to
ON(On),
It is recommended that the value of the
parameter not exceed 320 ms.
Otherwise, the uplink timing
performance is affected.
 For smart terminals with
stringent power supply, the
value SF320(320 subframes) is
recommended, and the
TimeAlignmentTimer.TimeA
lignmentTimer parameter

Paramete
r Name
Parameter ID Data
Source
Setting Notes
must be set to SF10240(10240
subframes).
NOTICE:
Theoretically, a long DRX cycle of 320
ms prolongs the interval at which the
measured RSRP is reported. This may
reduce the handover success rate,
which is closely related to UE mobility
and weak-coverage networking. Lab
tests need to be conducted for specific
scenarios. If the test results match
customer expectation, a long DRX
cycle of 320 ms can be used. In cells
where UEs move at high speeds, use
the default long DRX cycle of 40 ms.
 For VoIP services with QCI 1,
if
SpsSchSwitch(SpsSchSwitch)
under the
CellAlgoSwitch.DlSchSwitch
parameter is selected, set this
parameter to a value equal to or
less than the semi-persistent
scheduling period, that is, 20
ms. Otherwise, downlink semi-
persistent scheduling cannot
take effect.
The length of the long DRX cycle must
be smaller than the value of
RlcPdcpParaGroup.DiscardTimer
(indicating the length of the Packet
Data Convergence Protocol (PDCP)
data discard timer for the
corresponding QCI). Otherwise, packet
loss occurs during ping operations or
low-traffic services.
Short-
cycle
DRX
supported
indication
DrxParaGroup.SupportS
hortDrx
Networ
k plan
(negotia
tion not
required
)
short DRX cycles.

Paramete
r Name
Parameter ID Data
Source
Setting Notes
Short
DRX
Cycle
DrxParaGroup.ShortDrxC
ycle
Networ
k plan
(negotia
tion not
required
)
This parameter specifies the length of a
short DRX cycle.
longer sleep time and a longer delay.
Set the
DrxParaGroup.ShortDrxCycle
parameter to SF80(80 subframes) if
the DrxParaGroup.LongDrxCycle
subframes).
DRX
Short
Cycle
Timer
DrxParaGroup.DrxShortC
ycleTimer
Networ
k plan
(negotia
tion not
required
)
the DRX Short Cycle Timer.
longer time during which the UE is in
short DRX cycles.
Set the
DrxParaGroup.DrxShortCycleTim
er parameter to 1 if the
subframes).
NOTE:
Performance-preferred and power saving-preferred parameter settings are recommended for
configuring DRX. For details, see "Scenario 1: Setting DRX Parameters for Common UEs"
in 8.4.5.4 Using MML Commands.
The following table describes the parameters that must be set in a CellStandardQci MO to
map parameter groups to standardized QCIs in cells.
Paramete
r Name
Parameter ID Data
Source
Setting Notes
Local cell
ID
CellStandardQci.LocalCellId Network
plan
(negotiatio
n not
required)
uniquely identifies a cell
under an eNodeB.
QoS Class
Indication
CellStandardQci.Qci Network
plan
(negotiatio
QCI for evolved packet
system (EPS) bearers.

Paramete
r Name
Parameter ID Data
Source
Setting Notes
n not
required)
DRX
parameter
group ID
CellStandardQci.DrxParaGroupI
d
Network
plan
(negotiatio
n not
required)
DRX parameter group.
Modify the DRX parameters
mapped to the QCI, if
required, in the identified
parameter group.
QCI
Priority
For DRX
CellStandardQci.QciPriorityFor
Drx
Network
plan
(negotiatio
n not
required)
QCI-specific priority for
selecting a DRX parameter
group. A larger value for this
parameter indicates a lower
priority.
If the bearers for a UE have
multiple QCIs and the
CellDrxPara.DrxPolicyMo
de parameter is set to
QCIPRIORITY(QCI
priority), the eNodeB selects
the DRX parameter group for
the UE based on the QCI-
specific priorities.
The following table describes the parameters that must be set in CellExtendedQci MOs to
map parameter groups to extended QCIs in cells.
Parameter
Name
Parameter ID Data
Source
Setting Notes
Extended
QCI
CellExtendedQci.ExtendedQci Network
plan
(negotiation
required)
This parameter specifies an
extended QCI, which is
used by the operator for
user differentiation.
Set this parameter if DRX
parameters are required for
an extended QCI.
Local cell
ID
CellExtendedQci.LocalCellId Network
plan
(negotiation
not
required)
uniquely identifies a cell
under an eNodeB.

Parameter
Name
Parameter ID Data
Source
Setting Notes
DRX
parameter
group ID
CellExtendedQci.DrxParaGroupId Network
plan
(negotiation
not
required)
The following table describes the parameter that must be set in a TimeAlignmentTimer MO
to specify the length of the uplink time alignment timer for UEs in a cell.
Param
eter
Name
Parameter ID Data
Source
Setting Notes
Uplink
time
alignm
ent
timer
TimeAlignmentTimer.TimeAli
gnmentTimer
Networ
k plan
(negotia
tion not
required
)
the uplink time alignment timer for
UEs in the cell.
A UE is considered not time-aligned
in the uplink if the timer expires.
When the
parameter value is greater than or
equal to 80 ms, change the
TimeAlignmentTimer.TimeAlignm
entTimer parameter value from 1920
ms (the default value) to 10240 ms to
ensure that a long DRX cycle does
not affect synchronization.
When the
TimeAlignmentTimer.TimingAdv
CmdOptSwitch parameter is set to
ON(On), it is recommended that the
entTimer parameter be set to
SF10240(10240 subframes). If the
entTimer parameter is set to a small
value, for example, less than
SF5120(5120 subframes), the
probability of uplink out-of-
synchronization for UEs in DRX
mode increases.
Scenario 2: Setting DRX Parameters for Special UEs

The following table describes the parameters that must be set in a SpidCfg MO to set the
DRX status for each subscriber profile ID (SPID).
Parameter
Name
Parameter ID Data
Source
Setting Notes
Spid SpidCfg.Spid Network
plan
(negotiation
required)
This parameter specifies an SPID. Set this
parameter based on the network plan.
Operators can use this parameter to
designate a UE as a special UE and enable
it to enter DRX mode. This helps reduce
the service delay for this UE.
Drx status SpidCfg.DrxStatus Network
plan
(negotiation
not
required)
normal or special DRX.
 The value TRUE(TRUE) indicates
that UEs with the SPID use normal
DRX settings.
 The value FALSE(FALSE)
indicates that UEs with the SPID
use special DRX settings.
The following table describes the parameters that must be set in a Drx MO to configure
eNodeB-level DRX parameters.
Parameter Name Parameter ID Data
Source
Setting Notes
DRX switch Drx.DrxAlgSwitch Network
plan
(negotiatio
n not
required)
This
parameter
specifies
whether to
enable DRX.
Set this
parameter to
ON if DRX is
required.
Short-cycle DRX switch Drx.ShortDrxSwitch Network
plan
(negotiatio
n not
required)
This
parameter
specifies
whether to use
short DRX
cycles. Set this
parameter to
ON if short
DRX cycles
are required.

Source
Setting Notes
Special long DRX cycle Drx.LongDrxCycleSpecial Network
plan
(negotiatio
n not
required)
This
parameter
specifies the
length of a
long DRX
cycle that is
applicable
only to non-
power-saving
UEs whose
RFSP indexes
are contained
in the RFSP
index set.
The value
SF10(10
subframes) is
recommended.
Special On Duration timer Drx.OnDurationTimerSpecial Network
plan
(negotiatio
n not
required)
This
parameter
specifies the
length of the
On Duration
Timer that is
applicable
only to non-
power-saving
UEs whose
RFSP indexes
are contained
in the RFSP
index set.
A larger
parameter
value results
in a longer
active time
and a shorter
delay. A
smaller
parameter
value results
in a shorter
active time

Source
Setting Notes
and a longer
delay.
The value
PSF5(5
PDCCH
subframes) is
recommended.
Special DRX inactivity
timer
Drx.DrxInactivityTimerSpecial Network
plan
(negotiatio
n not
required)
This
parameter
specifies the
length of the
DRX
Inactivity
Timer that is
applicable
only to non-
power-saving
UEs whose
RFSP indexes
are contained
in the RFSP
index set.
The value
PSF10(10
PDCCH
subframes) is
recommended.
Special short-cycle DRX
supported indication
Drx.SupportShortDrxSpecial Network
plan
(negotiatio
n not
required)
This
parameter
specifies
whether to
enable short
DRX cycles
for non-
power-saving
UEs whose
RFSP indexes
are contained
in the RFSP
index set.
The value
UU_DISABL
E is

Source
Setting Notes
recommended.
ShortDrxCycleSpecial Drx.ShortDrxCycleSpecial Network
plan
(negotiatio
n not
required)
This
parameter
specifies the
length of a
short DRX
cycle that is
applicable
only to non-
power-saving
UEs whose
RFSP indexes
are contained
in the RFSP
index set.
The value
SF10(10
subframes) is
recommended.
DrxShortCycleTimerSpeci
al
Drx.DrxShortCycleTimerSpeci
al
Network
plan
(negotiatio
n not
required)
This
parameter
specifies the
length of the
DRX Short
Cycle Timer
that is
applicable
only to non-
power-saving
UEs whose
RFSP indexes
are contained
in the RFSP
index set.
The value 1 is
recommended.
Scenario 3: Setting DRX Parameters for ANR Measurements
The following table describes the parameters that must be set in a Drx MO to configure DRX
parameters for ANR measurements.

Parameter
Name
Parameter ID Data
Source
Setting Notes
Long DRX
Cycle for
ANR
Drx.LongDrxCycleForAnr Network
plan
(negotiation
not
required)
long DRX cycle for intra-
RAT ANR. If intra-RAT
ANR is enabled, this
parameter is valid regardless
of whether DRX is disabled.
Set this parameter to
SF256(256 subframes) or a
larger value to increase the
ANR measurement success
rate.
Long DRX
Cycle for
Inter-RAT
ANR
Drx.LongDRXCycleforIRatAnr Network
plan
(negotiation
not
required)
long DRX cycle for inter-
RAT ANR. If inter-RAT
ANR is enabled, this
parameter is valid regardless
of whether DRX is disabled.
8.4.3 Precautions
None
N/A
8.4.5 Activation
Enter the values of the parameters listed in the following tables in a summary data file, which
also contains other data for the new eNodeBs to be deployed. Then, import the summary data
file into the Configuration Management Express (CME) for batch configuration. For detailed
instructions, see "Creating eNodeBs in Batches" in the initial configuration guide for the
eNodeB, which is available in the eNodeB product documentation.
The summary data file may be a scenario-specific file provided by the CME or a customized
file, depending on the following conditions:
 The managed objects (MOs) in the following tables are contained in a scenario-
specific summary data file. In this situation, set the parameters in the MOs, and then
verify and save the file.
 Some MOs in the following tables are not contained in a scenario-specific summary
data file. In this situation, customize a summary data file to include the MOs before
you can set the parameters.

User-defined sheets are recommended. The following table describes the MOs in the sheets.
MO Sheet in the
Summary
Data File
Parameter Group Remarks
CellDrxPara eNodeB
Radio Data
Local cell ID, FDD enter DRX threshold,
FDD exit DRX threshold, Data amount
Statistic timer, DRX Policy Mode, DRX
Start Offset Optimization Switch
None
DRX eNodeB
Radio Data
DRX switch, Short-cycle DRX switch Set the DRX
switch to
ON(On).
DrxParaGroup eNodeB
Radio Data
Local Cell ID, DRX parameter group ID,
Enter DRX Switch, On Duration Timer,
DRX Inactivity Timer, DRX
Retransmission Timer, Long DRX Cycle,
Short-cycle DRX supported indication,
Short DRX Cycle, DRX Short Cycle Timer
None
CellStandardQci eNodeB
Radio Data
Local cell ID, Qci, DRX parameter group
ID, QCI Priority For DRX
None
CellExtendedQci eNodeB
Radio Data
Extended QCI, Local cell ID, DRX
parameter group ID
None
MO Sheet in the
Summary
Data File
CellDrxPara eNodeB Radio
Data
None
DRX eNodeB Radio
Data
DRX switch, Short-cycle DRX switch,
Special DRX inactivity timer (subframe),
Special long DRX cycle(subframe), Special
On Duration timer(subframe), Special
short-cycle DRX supported indication,
Special short DRX cycle(subframe),
Special DRX short cycle timer
None
SpidCfg eNodeB Radio
Data
Spid, Drx status None

MO Sheet in the
Summary
Data File
Data
None
DRX eNodeB Radio
Data
Long DRX Cycle for ANR, Long DRX
Cycle for Inter-RAT ANR
None
Batch Activation
This feature can be batch activated using the CME. For detailed operations, see the following
section in the CME product documentation or online help: Managing the CME > CME
Guidelines > Enhanced Feature Management > Feature Operation and Maintenance.
Batch Reconfiguration
Batch reconfiguration using the CME is the recommended method to activate a feature on
existing eNodeBs. This method reconfigures all data, except neighbor relationships, for
multiple eNodeBs in a single procedure. The procedure is as follows:
1. Customize a summary data file with the MOs and parameters listed in section "Using
the CME to Perform Batch Configuration for Newly Deployed eNodeBs." For
detailed operations, press F1 in a CME window and navigate to Managing the CME
> CME Guidelines > LTE Application Management > eNodeB Related
Operations > Customizing a Summary Data File for Batch eNodeB
Configuration in the CME online help.
2. Choose CME > LTE Application > Export Data > Export Base Station Bulk
Configuration Data (U2000 client mode), or choose LTE Application > Export
Data > Export Base Station Bulk Configuration Data (CME client mode), to
export the eNodeB data stored on the CME into the customized summary data file.
3. In the summary data file, set the parameters in the MOs according to the setting notes
provided in section "Data Preparation" and close the file.
4. Choose CME > LTE Application > Import Data > Import Base Station Bulk
Configuration Data (U2000 client mode), or choose LTE Application > Import
Data > Import Base Station Bulk Configuration Data (CME client mode), to
import the summary data file into the CME, and then start the data verification.
5. After data verification is complete, choose CME > Planned Area > Export
Incremental Scripts (U2000 client mode), or choose Area Management > Planned
Area > Export Incremental Scripts (CME client mode), to export and activate the
incremental scripts. For detailed operations, see Managing the CME > CME

Guidelines > Script File Management > Exporting Incremental Scripts from a
Planned Data Area in the CME online help.
On the CME, set the parameters listed in the "Data Preparation" section for a single eNodeB.
The procedure is as follows:
1. In the planned data area, click Base Station in the upper left corner of the
configuration window.
2. In area 1 shown in Figure 8-1, select the eNodeB to which the MOs belong.
Figure 8-1 MO search and configuration window
3. On the Search tab page in area 2, enter an MO name, for example, CELL.
4. In area 3, double-click the MO in the Object Name column. All parameters in this
MO are displayed in area 4.
5. Set the parameters in area 4 or 5.
6. Choose CME > Planned Area > Export Incremental Scripts (U2000 client mode),
or choose Area Management > Planned Area > Export Incremental Scripts (CME
client mode), to export and activate the incremental scripts.
8.4.5.4 Using MMLCommands
MML Command

1. Run the MOD DRX command to turn on the DRX switch.
MOD DRX: DrxAlgSwitch=ON, ShortDrxSwitch=ON;
2. Run the MOD CELLSTANDARDQCI command to bind a DRX parameter group to
a standardized QCI for a cell.
MOD CELLSTANDARDQCI: LocalCellId=0, Qci=QCI9, DrxParaGroupId=3;
3. (Optional) If extended QCI 10 has been configured for a cell, run the MOD
CELLEXTENDEDQCI command to bind a DRX parameter group to the extended
QCI for a cell.
MOD CELLEXTENDEDQCI: ExtendedQci=10, LocalCellId=0, DrxParaGroupId=3;
4. If the long DRX cycle is equal to or longer than 80 ms, run the MOD TATIMER
command to modify the TimeAlignmentTimer.TimeAlignmentTimer parameter.
MOD TATIMER: LocalCellId=0, TimeAlignmentTimer=SF10240;
5. To reduce RRC reconfiguration signaling generated by UEs frequently entering and
exiting DRX mode, run the MOD CELLDRXPARA command to set the
CellDrxPara.FddEnterDrxThd and CellDrxPara.FddExitDrxThd parameters to
1000. Then, UEs will not enter or exit DRX mode based on the traffic statistics.
MOD CELLDRXPARA: LocalCellID=0,FddEnterDrxThd =1000,FddExitDrxThd =
1000;
6. Run the MOD DRXPARAGROUP command to turn on the switch of a specified
DRX parameter group and configure DRX parameters.
Example 1: To configure performance-preferred parameters, run the following
command:
MOD DRXPARAGROUP: LocalCellId=0, DrxParaGroupId=3, EnterDrxSwitch=ON,
OnDurationTimer=PSF2, DrxInactivityTimer=PSF80, DrxReTxTimer=PSF8,
LongDrxCycle=SF40, SupportShortDrx=UU_ENABLE, ShortDrxCycle=SF20,
DrxShortCycleTimer=1;
Example 2: To configure power saving-preferred parameters, run the following
command:
OnDurationTimer=PSF10, DrxInactivityTimer=PSF100,DrxReTxTimer=PSF8,
7. (Optional) To allow the eNodeB to select DRX parameters based on QCI priorities,
run the MOD CELLDRXPARA command to specify a DRX parameter selection

policy and run the MOD CELLSTANDARDQCI command to set DRX priorities
used in DRX parameter selection.
8. MOD CELLDRXPARA: LocalCellId=0, DrxPolicyMode=QCIPRIORITY;
MOD CELLSTANDARDQCI: LocalCellId=0, Qci=QCI9, QciPriorityForDrx=9;
1. Run the ADD SPIDCFG command to configure SPIDs.
ADD SPIDCFG: Spid=99, DrxStatus=FALSE, RatFreqPriorityInd=NOT_CFG;
2. Run the MOD DRX command to set eNodeB-level DRX parameters.
MOD DRX: DrxAlgSwitch=ON, ShortDrxSwitch=ON,
LongDrxCycleSpecial=SF10, OnDurationTimerSpecial=PSF5,
DrxInactivityTimerSpecial=PSF10, SupportShortDrxSpecial=UU_DISABLE;
Run the MOD DRX command to set DRX parameters for ANR measurements.
MOD DRX: LongDrxCycleForAnr=SF320;
MML Command Examples
1. Configure performance-preferred parameters for common UEs.
2. MOD DRX: DrxAlgSwitch=ON, ShortDrxSwitch=ON;
3. MOD CELLSTANDARDQCI: LocalCellId=0, Qci=QCI9, DrxParaGroupId=3;
4. MOD CELLEXTENDEDQCI: ExtendedQci=10, LocalCellId=0, DrxParaGroupId=3;
5. MOD TATIMER: LocalCellId=0, TimeAlignmentTimer=SF1920;
6. MOD CELLDRXPARA: LocalCellID=0,FddEnterDrxThd =1000,FddExitDrxThd =
1000;
OnDurationTimer=PSF2, DrxInactivityTimer=PSF80, DrxReTxTimer=psf8,
7. Configure power saving-preferred parameters for common UEs.
8. MOD DRX: DrxAlgSwitch=ON, ShortDrxSwitch=ON;
9. MOD CELLSTANDARDQCI: LocalCellId=0, Qci=QCI9, DrxParaGroupId=3;
10. MOD CELLEXTENDEDQCI: ExtendedQci=10, LocalCellId=0,
DrxParaGroupId=3;
11. MOD TATIMER: LocalCellId=0, TimeAlignmentTimer=SF10240;
12. MOD CELLDRXPARA: LocalCellID=0,FddEnterDrxThd =1000,FddExitDrxThd =
1000;
OnDurationTimer=PSF10, DrxInactivityTimer=PSF100,DrxReTxTimer=psf8,
ADD SPIDCFG: Spid=99, DrxStatus=FALSE, RatFreqPriorityInd=NOT_CFG;

MOD DRX: DrxAlgSwitch=ON, ShortDrxSwitch=ON, LongDrxCycleSpecial=SF10,
OnDurationTimerSpecial=PSF5, DrxInactivityTimerSpecial=PSF10,
SupportShortDrxSpecial=UU_DISABLE;
MOD DRX: LongDrxCycleForAnr=SF320;
The activation observation procedure is as follows:
2. Run the LST CELLSTANDARDQCI command with the Cell.LocalCellId and
StandardQci.Qci parameters specified to query the DRX parameter group ID.
3. Run the LST DRXPARAGROUP command to query the settings of the DRX
parameter group.
If the value of DrxParaGroup.EnterDrxSwitch is ON(On), DRX has been
activated for bearers with the specified QCI.
4. Enable a UE to access the network and maintain low traffic in the uplink and
downlink on the UE. Then, check the RRC Connection Reconfiguration message
(displayed as RRC_CONN_RECFG on the tracing client) on the Uu interface.
If the message contains DRX parameters as shown in Figure 8-2, the eNodeB has
instructed the UE to enter DRX mode.
Figure 8-2 RRC Connection Reconfiguration message (1)
NOTE:

Due to the limitation of the CQI and SRS, the configured values for the
DrxParaGroup.OnDurationTimer and DrxParaGroup.LongDrxCycle
parameters are inconsistent with the values delivered by the eNodeB.
The prerequisite for this scenario is that an SPID has been set on the EPC for the international
mobile subscriber identity (IMSI) of a UE.
1. Run the ADD SPIDCFG command to add the SPID configuration for the eNodeB.
3. Enable a UE to access the network and maintain low traffic in the uplink and
downlink on the UE. Then, check the RRC Connection Reconfiguration message
(displayed as RRC_CONN_RECFG on the tracing client) on the Uu interface.
If the message contains RFSP-specific DRX parameters as shown in Figure 8-3, the
eNodeB has instructed the UE to enter DRX mode.
The eNodeB configures or reconfigures DRX parameters for UEs during ANR measurement
regardless of whether the Drx.DrxAlgSwitch parameter is set to ON or OFF.
1. Run the MOD DRX command to turn on the DRX switch and set the
Drx.LongDrxCycleForAnr and Drx.LongDRXCycleforIRatAnr parameters.
o The value of the Drx.LongDrxCycleForAnr parameter is used as the long
DRX cycle if the ANR measurements are performed on E-UTRAN cells.

o The value of the Drx.LongDRXCycleforIRatAnr parameter is used as the
long DRX cycle if the ANR measurements are performed on GERAN or
UTRAN cells.
2. Check the RRC Connection Reconfiguration message on the Uu interface. (The RRC
Connection Reconfiguration message is delivered when ANR measurement is
required.)
If the message contains DRX parameters as shown in Figure 8-4, the eNodeB has
configured DRX parameters for the UE during ANR measurement.
3. Run the MOD DRX command to turn off the DRX switch.
4. Check the RRC Connection Reconfiguration message on the Uu interface when the
UE is successfully handed over to a new cell.
If the message contains DRX parameters, the eNodeB has configured DRX
parameters for the UE during ANR measurement.
eNodeBs are reconfigured for DRX in batches. For details, see the introduction to batch
reconfiguration operations in eNodeB Reconfiguration Guide.
8.4.8 Deactivation
Batch reconfiguration using the CME is the recommended method to deactivate a feature on
eNodeBs. This method reconfigures all data, except neighbor relationships, for multiple
eNodeBs in a single procedure. The procedure for feature deactivation is similar to that for
feature activation described in 8.4.5.2 Using the CME to Perform Batch Configuration for
Existing eNodeBs. In the procedure, modify parameters according to Table 8-1.
Table 8-1 Parameter for deactivating DRX

MO Sheet in the Summary
Data File
Parameter Group Setting Notes
Drx eNodeB Radio Data DRXALGSWITCH DRXALGSWITCH=OFF
On the CME, set parameters according to Table 8-1. For detailed instructions, see 8.4.5.3
Using the CME to Perform Single Configuration described for feature activation.
1. Run the MOD DRX command to turn off the DRX switch.
MOD DRX: DrxAlgSwitch=OFF;
2. Run the MOD TATIMER command to restore the setting of the
TimeAlignmentTimer.TimeAlignmentTimer parameter.
MOD TATIMER: LocalCellId=0, TimeAlignmentTimer=SF1920;
8.5 Maintenance
After activating this feature, use the following counters for monitoring:
 L.Cdrx.Enter.Num and L.Cdrx.Exit.Num: used to monitor how often a UE enters
and exits DRX mode.
 L.Traffic.User.Cdrx.Avg: used to monitor the average number of UEs that enter
DRX mode on the network.
 L.Cdrx.Active.TtiNum and L.Cdrx.Sleep.TtiNum: used to indirectly monitor the
power saving effect of UEs in the network.
 L.Voip.Cdrx.Active.TtiNum and L.Voip.Cdrx.Sleep.TtiNum: used to monitor the
power saving effect of UEs performing VoIP services.
 Handover-related counters: used to monitor the handover performance of UEs in
DRX mode and the proportion of UEs in the DRX state during handovers.
After DRX is enabled, the following parameters may need to be modified:
Parameter Name Parameter ID Setting Notes
FDDEnterDrxThresh
old
CellDrxPara.FddEnterDrxThd This parameter specifies the
threshold for UEs to enter
DRX mode in an FDD cell.
This threshold is used in the

DRX algorithm.
It is expressed as the
proportion of the number of
TTIs with data transmission to
the total number of TTIs. If
the traffic volume at a UE is
equal to or below this
threshold, the eNodeB
instructs the UE to stay in or
enter DRX mode. The value of
the
CellDrxPara.FddEnterDrxT
hd parameter must be less
than that of the
CellDrxPara.FddExitDrxTh
d parameter under the same
Cell MO.
The value 300 is
recommended.
To prevent UEs from
frequently entering and exiting
DRX mode for traffic volume
reasons, it is recommended
that the
hd parameter be set to 1000.
With this setting, the eNodeB
does not determine whether
UEs need to enter or exit DRX
mode based on traffic volume;
instead, the eNodeB instructs
UEs to directly enter DRX
mode during the initial access.
For this purpose, the eNodeB
sends DRX parameters to UEs
during the initial access
without additional RRC
connection reconfiguration
signaling.
FDDExitDrxThreshol
d
CellDrxPara.FddExitDrxThd This parameter specifies the
threshold for UEs to exit DRX
mode in an FDD cell. This
threshold is used in the DRX

algorithm.
It is expressed as the
proportion of the number of
TTIs with data transmission to
the total number of TTIs. If
the traffic volume at a UE is
equal to or higher than this
instructs the UE to stay in non-
DRX mode or exit DRX
mode. The value of the
hd parameter must be less
than that of the
CellDrxPara.FddExitDrxTh
d parameter under the same
Cell MO.
The value 800 is
recommended.
DataAmoutStateTime
r
CellDrxPara.DataAmountStatTi
mer
UE traffic measurement
period. The traffic volume of a
UE is measured during this
period. The DRX algorithm
determines whether the UE
should enter or exit DRX
mode based on this
measurement.
The value 30 is recommended.
Long DRX Cycle for
ANR
Drx.LongDrxCycleForAnr This parameter specifies the
long DRX cycle for intra-RAT
ANR measurement. It is
recommended that this
parameter be set to a value
greater than 256 ms to
increase the measurement
success rate.
Fault Description
After accessing the network, the UE cannot enter DRX mode.

Fault Handling
1. Run the LST DRX command to check the DRX switch setting.
o If the DRX switch setting is Off, run the MOD DRX command to turn on the
DRX switch.
o If the DRX switch setting is On, go to 2.
2. Run the LST CELLDRXPARA command to check the FDD enter DRX
threshold(per mill) parameter value.
o If the value is inappropriate, change the value by referring to 8.4.2 Data
Preparation.
o If the value is appropriate, go to 3.
3. Check whether the UE is performing a service with a large traffic volume.
o If the UE is performing a service with a large traffic volume, it does not enter
DRX mode.
o If the UE is performing a service with a very small traffic volume (for
example, ping or VoIP), repeat 2 and then go to 4.
4. Run the LST CELLSTANDARDQCI command to query the DRX parameter group
IDs corresponding to the QCIs used by the UE.
5. Run the LST DRXPARAGROUP command to check the Enter DRX Switch
settings for the DRX parameter group IDs.
o If any Enter DRX Switch setting is Off, run the MOD DRXPARAGROUP
command to turn on the corresponding DRX switch or stop the ongoing
service on the corresponding bearer.
o If all the Enter DRX Switch settings are On, contact Huawei technical
support.
9 Engineering Guidelines for LOFD-
00110501 Dynamic DRX
This chapter provides guidelines for configuring LOFD-00110501 Dynamic DRX.
9.1 When to Use Dynamic DRX
Dynamic DRX is recommended in the following situations:
 Operators attach great importance to UE power saving.
In this scenario, you are advised to set a large difference between the value of the
RrcConnStateTimer.UeInactivityTimerDynDrx parameter and that of the
RrcConnStateTimer.UlSynTimerDynDrx parameter. This enables UEs to be in the
out-of-synchronization state for a longer time, thereby improving the power saving
performance. In addition, it is recommended that both the
CellDrxPara.FddEnterDrxThd and CellDrxPara.FddExitDrxThd parameters be
set to 1000 and the CellDrxPara.DrxInactivityTimerUnsync parameter be set to
200 ms so that UEs can save more power.
 Operators attach great importance to signaling reduction.

In this scenario, compare the total number of handovers in the network with the
number of E-RAB setups. Dynamic DRX is not recommended if the proportion of the
number of handovers in the network to the number of E-RAB setups is greater than
50%. If it is, the signaling storm is caused by handover-related signaling. If the ratio is
less than 50% and the number of E-RAB setups for a single user in peak hours is
greater than 200, dynamic DRX is recommended to reduce signaling overhead.
NOTE:
The value of RrcConnStateTimer.UeInactivityTimerDynDrx parameter may have UE
compatibility issues. In such a case, you are advised to contact Huawei technical support in
advance.
If the RrcConnStateTimer.UeInactivityTimerDynDrx parameter is set to a large value
(for example, 200s) on the eNodeB side, some UEs will be released and enter the idle mode
before the inactivity timer expires, which leads to service drops. To prevent such
incompatible UEs from affecting network performance, you can enable the LBFD-081103
Terminal Awareness Differentiation feature and add these UEs to a dynamic DRX blacklist.
For details about the operation, see Terminal Awareness Differentiation Feature Parameter
Description.
The RrcConnStateTimer.UeInactivityTimerDynDrx parameter specifies the length of the
inactivity timer for UEs that support DRX, and the RrcConnStateTimer.UeInactiveTimer
parameter specifies the length of the inactivity timer for UEs that do not support DRX.
Before deploying dynamic DRX, collect information about the
RrcConnStateTimer.UeInactiveTimer and RrcConnStateTimer.UlSynTimer parameter
values. Assume that the values of the RrcConnStateTimer.UeInactiveTimer and
RrcConnStateTimer.UlSynTimer parameters are a and b, respectively.
Perform either of the following operations to ensure accurate KPIs:
 If operators do not use dynamic DRX to reduce signaling, perform the following
operations to avoid KPI fluctuations:
o Set the RrcConnStateTimer.UeInactivityTimerDynDrx parameter to the
value a.
o Set the RrcConnStateTimer.UlSynTimerDynDrx parameter to the value b.
If power saving is required, set the RrcConnStateTimer.UlSynTimerDynDrx
parameter to a value less than the value of the
RrcConnStateTimer.UeInactivityTimerDynDrx parameter. This configuration
does not increase the number of UEs in connected mode.
 If operators use dynamic DRX to reduce signaling, perform the following operations
to ensure KPI accuracy:
1. Set the RrcConnStateTimer.UlSynTimerDynDrx and
RrcConnStateTimer.UlSynTimer parameters to the value a.

2. Set the RrcConnStateTimer.UeInactivityTimerDynDrx and
RrcConnStateTimer.UeInactiveTimer parameters to a value greater than
the value a. Set the RrcConnStateTimer.UeInactivityTimerDynDrx and
RrcConnStateTimer.UeInactiveTimer parameters to the same value.
After these operations are complete, the values of
RrcConnStateTimer.UeInactivityTimerDynDrx and
RrcConnStateTimer.UeInactiveTimer are greater than the value a and the number
of UEs in connected mode increases.
Assume that the value of RrcConnStateTimer.UeInactiveTimer is 20s. Then, set
the RrcConnStateTimer.UeInactivityTimerDynDrx and
RrcConnStateTimer.UeInactiveTimer parameters to 200s; set the
RrcConnStateTimer.UlSynTimerDynDrx and
RrcConnStateTimer.UlSynTimer parameters to 20s. After the setting, the value of
RrcConnStateTimer.UeInactivityTimerDynDrx is greater than the value of
RrcConnStateTimer.UlSynTimerDynDrx.
To evaluate the impact of an adjustment to the RrcConnStateTimer.UeInactiveTimer or
RrcConnStateTimer.UeInactivityTimerDynDrx parameter,
Set the RrcConnStateTimer.UeInactiveTimer parameter to a large value V (for example,
200s) and collect the values of the following performance counters:
 L.Traffic.PktInterval.Num.Index0
Then, adjust the RrcConnStateTimer.UeInactiveTimer or
RrcConnStateTimer.UeInactivityTimerDynDrx parameter value ranging from 0 to V,
and observe the changes in signaling.
To evaluate the impact of an adjustment to the RrcConnStateTimer.UlSynTimer or
RrcConnStateTimer.UlSynTimerDynDrx parameter, collect the statistics on out-of-
synchronization durations. Longer durations indicate more effective adjustments and will
save more power after dynamic DRX is enabled. To collect the statistics, monitor the
following performance counters:
 L.User.UL.Unsync.Dur.Index0

9.3 Planning
RF Planning
To reduce signaling bursts caused by frequent access and release on live networks without
coverage problems (for example, without ping-pong handovers), dynamic DRX prolongs the
time UEs stay in connected mode. The networks must meet the following coverage
requirements:
 No coverage holes.
 No overshoot coverage.
 No pilot pollution.
 No path loss imbalance between uplink and downlink.
Network Planning
N/A
Hardware Planning
N/A
9.4 Deployment
9.4.1 Requirements
N/A
N/A
License
The operator has purchased and activated the license for the feature listed in Table 9-1.
Table 9-1 License information for dynamic DRX
Feature ID Feature Name Model License Control
Item
NE Sales
Unit
LOFD-001105 Dynamic DRX LT1S00DDRX00 Dynamic DRX
(FDD)
eNodeB per cell

After purchasing and activating this license, you must select
DynDrxSwitch(DynDrxSwitch) under the CellAlgoSwitch.DynDrxSwitch parameter to
enable dynamic DRX.
operator
negotiated with the EPC or peer transmission equipment
Required Data
N/A
Scenario-specific Data
NOTE:
Before deploying dynamic DRX, collect the values of the
RrcConnStateTimer.UeInactiveTimer and RrcConnStateTimer.UlSynTimer
parameters. Assume that the values of the RrcConnStateTimer.UeInactiveTimer and
RrcConnStateTimer.UlSynTimer parameters are a and b, respectively.
Perform either of the following operations to ensure KPI accuracy:
 If operators do not use dynamic DRX to reduce signaling, perform the following
Set the RrcConnStateTimer.UeInactivityTimerDynDrx parameter to a.
Set the RrcConnStateTimer.UlSynTimerDynDrx parameter to b.
If power saving is required, set the RrcConnStateTimer.UlSynTimerDynDrx
parameter to a value less than the value of the
RrcConnStateTimer.UeInactivityTimerDynDrx parameter. This configuration
does not increase the number of UEs in connected mode.
 If operators use dynamic DRX to reduce signaling, perform the following operations

Set the RrcConnStateTimer.UlSynTimerDynDrx and
Set the RrcConnStateTimer.UeInactivityTimerDynDrx and
RrcConnStateTimer.UeInactiveTimer parameters to a value greater than a, and
ensure that the values of the two parameters are the same.
After these operations are complete, the values of the
RrcConnStateTimer.UeInactiveTimer parameters are greater than a and the
number of UEs in connected mode increases.
After the RrcConnStateTimer.UeInactivityTimerDynDrx parameter is set to a larger
value, you are advised to use new methods to ensure KPI accuracy and collect information
about KPI changes before deploying dynamic DRX. Setting
RrcConnStateTimer.UeInactivityTimerDynDrx to a larger value has the following
impact:
 The total number of E-RAB releases decreases, while the number of abnormal E-RAB
releases changes slightly. The number of decreased E-RAB releases converts into the
number of E-RABs in UE contexts when the UEs switch from the uplink
synchronization state to the uplink out-of-synchronization state. In this situation, use
the following new method to calculate the service drop rate:
Add the value of the L.E-RAB.Num.Syn2Unsyn counter to the denominator and
subtract the value of the L.E-RAB.Release.Unsyncounter from the denominator. The
formula is as follows:
Service drop rate (%) = L.E-RAB.AbnormRel/(L.E-RAB.AbnormRel + L.E-
RAB.NormRel + L.E-RAB.Num.Syn2Unsyn - L.E-RAB.Release.Unsyn)
 The number of RRC connection setups decreases significantly. In some scenarios (for
example, weak coverage scenarios), the number of failed RRC connection setups does
not decrease proportionally. The number of decreased RRC connection setups
converts into the number of times UEs switch from the out-of-synchronization state to
the synchronization state. In this situation, use the following new method to calculate
the success rate of RRC connection setups for services:
Add the value of the L.RRC.StateTrans.Unsyn2Syn.Succ counter to the numerator,
and add the value of the L.RRC.StateTrans.Unsyn2Syn counter to the denominator.
The formula is as follows:
Service RRC connection setup success rate (%) = (L.RRC.ConnReq.Succ.Mt +
L.RRC.ConnReq. Succ.MoData + L.RRC.ConnReq.Succ.EMC +
L.RRC.ConnReq.Succ.HighPri + L.RRC.ConnReq.Succ.DelayTol +
L.RRC.StateTrans.Unsyn2Syn.Succ)/(L.RRC.ConnReq.Att.Mt +
L.RRC.ConnReq.Att.MoData + L.RRC.ConnReq.Att.EMC +
L.RRC.ConnReq.Att.HighPri + L.RRC.ConnReq.Att.DelayTol +
L.RRC.StateTrans.Unsyn2Syn)

 The number of E-RAB setups decreases significantly. In some scenarios (for example,
weak coverage scenarios), the number of failed E-RAB setups does not decrease
proportionately. The number of decreased E-RAB setups converts into the number of
times UEs switch from the out-of-synchronization state to the synchronization state.
In this situation, use the following new method to calculate the E-RAB setup success
rate:
Add the value of the L.E-RAB.StateTrans.Unsyn2Syn.Succ counter to the
numerator, and add the value of the L.E-RAB.StateTrans.Unsyn2Syn.Att counter to
the denominator. The formula is as follows:
E-RAB setup success rate (%) = (L.E-RAB.SuccEst + L.E-
RAB.StateTrans.Unsyn2Syn.Succ)/(L.E-RAB.AttEst + L.E-
RAB.StateTrans.Unsyn2Syn.Att)
The following table describes the parameter that must be set in the CellAlgoSwitch MO to
modify the cell-level DRX parameters.
Parameter
Name
Parameter ID Data
Source
Setting Notes
Dynamic
DRX
switch
CellAlgoSwitch.DynDrxSwitch Network
plan
(negotiation
not
required)
This parameter specifies
whether to enable dynamic
DRX.
 If this switch is turned
on, dynamic DRX
applied to newly
accessed UEs.
 When this switch is
turned off, the UEs that
access the network
cannot use dynamic
DRX.
If dynamic DRX is enabled,
DRX switches cannot control
whether the DRX parameters
for UEs in the synchronization
state take effect.
The following table describes the parameters that must be set in the RrcConnStateTimer
MO to modify the UE control timer settings.
Parameter
Name
Parameter ID Data
Source
Setting Notes
UeInactive
Timer for
DynDRX
RrcConnStateTimer.UeInactivi
tyTimerDynDrx
Networ
k plan
(negoti
ation
not
require
length of the UE inactivity timer
when dynamic DRX is enabled. If
the eNodeB detects that a UE has
neither received nor sent data for a
period exceeding the value of this

Parameter
Name
Parameter ID Data
Source
Setting Notes
d) parameter, the eNodeB releases
the RRC connection for this UE. If
this parameter is set to a large
value, the amount of signaling is
reduced but UE power
consumption increases.
 When UE power saving is
required, use the default
value for this parameter.
 You are advised to
increase the value of this
parameter if signaling
reduction is required.
Uplink
Sync
Timer
Dynamic
DRX
RrcConnStateTimer.UlSynTim
erDynDrx
Networ
k plan
(negoti
ation
not
require
d)
length of the uplink
synchronization timer when the
dynamic DRX is enabled. This
timer and the protection
mechanism determine whether to
maintain uplink synchronization
for a UE. After this timer expires
and the protection period elapses,
the eNodeB no longer sends the
TA command to the UE.
It is recommended that the value
of this parameter be less than the
value of the
tyTimerDynDrx parameter. In
power saving mode, the difference
between the values of this
parameter and the
tyTimerDynDrx parameter
should be large, for example 10s,
to avoid power consumption
increasing due to the increase in
signaling.
NOTE:
Reduced-signaling-preferred and power saving-preferred parameter settings are
recommended for configuring dynamic DRX.

The following table describes the parameters that must be set in the CellDrxParaMO to
modify cell-level DRX parameters.
Parameter
Name
Parameter ID Data
Source
Setting Notes
UnSync
Long DRX
Cycle
CellDrxPara.LongDrxCycleUnsync Network
plan
(negotiation
not
required)
This parameter
specifies the length
of the long DRX
cycle for UEs in the
uplink out-of-
synchronization
state.
Onduration
Timer
Unsync
CellDrxPara.OndurationTimerUnsync Network
plan
(negotiation
not
required)
This parameter
of the On Duration
Timer for UEs in
the uplink out-of-
synchronization
state.
DRX
Inactivity
Timer
Unsync
CellDrxPara.DrxInactivityTimerUnsync Network
plan
(negotiation
not
required)
This parameter
of the DRX
Inactivity Timer for
UEs in the uplink
out-of-
synchronization
state.
The following table describes the parameters that must be set in the CellAccess MO to avoid
compatibility issues of UEs.
Parameter
Name
Parameter ID Data
Source
Setting Notes
Repeat
Synchronization
Avoid
Indication
CellAccess.ReptSyncAvoidInd Network
plan
(negotiation
not
required)
whether all
synchronization
procedures repeatedly
initiated by a UE having
compatibility issues can
trigger the RRC
connection
reconfiguration
procedure. The UE
compatibility issues will
significantly increase
the network
synchronization

Parameter
Name
Parameter ID Data
Source
Setting Notes
signaling.
 If this parameter
is set to
CFG(Configure
), no
synchronization
procedures
repeatedly
initiated by a UE
having
compatibility
issues trigger the
RRC connection
reconfiguration
procedure.
 If this parameter
is set to
NOT_CFG(Not
configure), all
synchronization
procedures
repeatedly
initiated by a UE
having
compatibility
issues trigger the
RRC connection
reconfiguration
procedure.
Repeat
Synchronization
Avoid Time
CellAccess.ReptSyncAvoidTime Network
plan
(negotiation
not
required)
the period during which
synchronization
procedures repeatedly
initiated by a UE having
compatibility issues do
not trigger the RRC
connection
reconfiguration
procedure. Multiple
synchronization
procedures initiated by
a UE having
compatibility issues
within the period

Parameter
Name
Parameter ID Data
Source
Setting Notes
specified by this
parameter trigger only
one RRC connection
reconfiguration
procedure.
NOTE:
For more information regarding UE compatibility issues, see 9.5.1 Performance Monitoring.
9.4.3 Precautions
When dynamic DRX is enabled, DRX for the synchronization state takes effect. The
CellDrxPara.FddEnterDrxThd and CellDrxPara.FddExitDrxThd parameters should be
set to 1000 to reduce signaling exchange over the air interface. When these parameters are set
to 1000, the eNodeB directly instructs the UE to enter or exit DRX mode, without
considering the measured traffic volume.
To prevent UE compatibility issues, when dynamic DRX is enabled, you are advised to set
DRX parameters for all bearers on the live network, including bearers with QCIs 2, 3, and 7.
 If bearers with QCI 2 or 3 exist on the live network without setting the DRX
parameters, you can run the following command to set the DRX parameters for QCI 2
or 3:
DrxParaGroup.LongDrxCycle=sf10,DrxParaGroup.OnDurationTimer=psf8,
DrxParaGroup.DrxInactivityTimer=psf10
 If bearers with QCI 7 exist on the live network, different DRX parameter groups can
be used for the bearers based on the QCI definitions of operators when dynamic DRX
is enabled. For example, bind QCI 7 to DRX parameter group 2 or 3 by running the
MOD CELLSTANDARDQCI command.
N/A
9.4.5 Activation
Enter the values of the parameters listed in Table 9-2 in a summary data file, which also
contains other data for the new eNodeBs to be deployed. Then, import the summary data file
into the CME for batch configuration. For detailed instructions, see "Creating eNodeBs in
Batches" in the initial configuration guide for the eNodeB, which is available in the eNodeB
product documentation.

 The MOs in Table 9-2 are contained in a scenario-specific summary data file. In this
situation, set the parameters in the MOs, and then verify and save the file.
 Some MOs in Table 9-2 are not contained in a scenario-specific summary data file. In
this situation, customize a summary data file to include the MOs before you can set
the parameters.
Table 9-2 Parameters for activating dynamic DRX
MO Sheet in the
Summary Data
File
CellAlgoSwitch eNodeB Radio
Data
Local cell ID, Dynamic
DRX switch
Set the Dynamic
DRX switch
parameter to
DynDrxSwitch-
1.
RrcConnStateTimer eNodeB Radio
Data
UE Inactivity Timer
Dynamic DRX, Uplink
Sync Timer Dynamic DRX
None
Data
UnSync Long DRX Cycle,
Onduration Timer Unsync,
DRX Inactivity Timer
Unsync
None
Batch Activation

MML Command
1. Run the LST RRCCONNSTATETIMER command to query the
RrcConnStateTimer.UeInactiveTimer parameter value (denoted by a) and
RrcConnStateTimer.UlSynTimer parameter value (denoted by b) parameters.
LST RRCCONNSTATETIMER:;
2. If operators do not use dynamic DRX to reduce signaling, perform the following
o Set the RrcConnStateTimer.UeInactivityTimerDynDrx parameter to the
value a.
o Set the RrcConnStateTimer.UlSynTimerDynDrx parameter to the value b.

To save more power, ensure that the value of
RrcConnStateTimer.UlSynTimerDynDrx is less than the value of
RrcConnStateTimer.UeInactivityTimerDynDrx and the difference between the
two values is large enough. This configuration does not increase the number of UEs in
connected mode.
MOD RRCCONNSTATETIMER:UeInactivityTimerDynDrx= 35,UlSynTimerDynDrx
=10;
3. If operators use dynamic DRX to reduce signaling, perform the following operations
a. Set the RrcConnStateTimer.UlSynTimerDynDrx and
b. Set the RrcConnStateTimer.UeInactivityTimerDynDrx and
RrcConnStateTimer.UeInactiveTimer parameters to the same value that is
greater than the value a.
After these operations are complete, the values of
RrcConnStateTimer.UeInactiveTimer are greater than the value a and the number
of UEs in connected mode increases.
MOD
RRCCONNSTATETIMER:UeInactivityTimerDynDrx=200,UeInactiveTimer=200,UlS
ynTimerDynDrx =20,UlSynTimer =20;
4. After 3 is performed, if the KPI deteriorates, use the new formula to calculate the
service drop rate, as described in 9.4.2 Data Preparation. If the KPI does not
deteriorate, proceed to the next step.
5. Run the MOD CELLDRXPARA command to configure DRX parameters in the out-
of-synchronization state. To save more power, it is recommended that the
CellDrxPara.FddEnterDrxThd and CellDrxPara.FddExitDrxThd parameters be
set to 1000 and that the CellDrxPara.DrxInactivityTimerUnsync parameter be set
to 200 ms. That way UEs do not enter or exit DRX mode in the synchronization state
based on the traffic statistics. The DRX parameters for the synchronization state
remain the same as those configured before dynamic DRX is enabled.
MOD CELLDRXPARA:LocalCellID=0,LongDrxCycleUnsync=SF
1280,OndurationTimerUnsync=PSF5,DrxInactivityTimerUnsync=PSF200,FddEn
terDrxThd =1000,FddExitDrxThd = 1000;
6. Run the following command to enable dynamic DRX:
MOD CELLALGOSWITCH:LocalCellId=0,DynDrxSwitch=DynDrxSwitch-1;
7. Run the following command to set
RrcConnStateTimer.UlSynTimer to ensure the power saving effect for UEs that do
not support DRX:
MOD RRCCONNSTATETIMER:UeInactiveTimer= 20, UlSynTimer= 180;

8. (Optional) If UEs with compatibility issues exist in the network, you are advised to
run the MOD CELLACCESS command to set the CellAccess.ReptSyncAvoidInd
and CellAccess.ReptSyncAvoidTime parameters. The purpose is to reduce RRC
connection reconfiguration signaling. For details about how to determine whether
UEs have compatibility issues, see 9.5.1 Performance Monitoring.
MOD CELLACCESS:LocalCellId=0, ReptSyncAvoidInd=CFG,
ReptSyncAvoidTime=100;
MML Command Examples
Scenario 1: Setting Parameters for Power Saving Mode
MOD RRCCONNSTATETIMER:UeInactivityTimerDynDrx=35, UlSynTimerDynDrx =10;
MOD CELLDRXPARA:LocalCellID=0, LongDrxCycleUnsync=SF1280,
OndurationTimerUnsync=PSF5, DrxInactivityTimerUnsync=PSF200,
FddEnterDrxThd=1000, FddExitDrxThd=1000;
MOD CELLALGOSWITCH: LocalCellId=0, DynDrxSwitch=DynDrxSwitch-1;
Scenario 2: Setting Parameters for Reduced Signaling Mode
MOD RRCCONNSTATETIMER: UeInactivityTimerDynDrx=200, UeInactiveTimer=200,
UlSynTimerDynDrx=20, UlSynTimer=20;
MOD CELLDRXPARA:LocalCellID=0, LongDrxCycleUnsync=SF 1280,
OndurationTimerUnsync=PSF5, DrxInactivityTimerUnsync=PSF200,
FddEnterDrxThd=1000, FddExitDrxThd=1000;
MOD CELLALGOSWITCH: LocalCellId=0, DynDrxSwitch=DynDrxSwitch-1;
MOD RRCCONNSTATETIMER:UeInactiveTimer=20, UlSynTimer=180;
If the number of dynamic DRX reconfiguration messages (L.Signal.Num.DRX.Reconfig -
L.Cdrx.Enter.Num - L.Cdrx.Exit.Num) is greater than 0, dynamic DRX has been
activated.
N/A
9.4.8 Deactivation
Table 9-3 Parameter for deactivating dynamic DRX
MO Sheet in the
Summary Data File

MO Sheet in the
Summary Data File
CellAlgoSwitch eNodeB Radio Data Dynamic DRX switch Set this parameter to
DynDrxSwitch-0.
Run the MOD CELLALGOSWITCH command to deactivate dynamic DRX.
MOD CELLALGOSWITCH:LocalCellId=0,DynDrxSwitch=DynDrxSwitch-0;
9.5 Maintenance
After dynamic DRX is enabled, monitor the power or signaling saving effect.
 Monitoring the power saving effect
You can monitor the power saving effect in either of the following ways:
o Use special tools to directly monitor the power saving effect.
o Use counters to indirectly monitor the power saving effect.
If the difference between the parameters
RrcConnStateTimer.UlSynTimerDynDrx is large, use the counters
L.Cdrx.Active.TtiNum and L.Cdrx.Sleep.TtiNum and consider the power
saving performance to determine the power saving effect.
For example, when the DRX cycle is 40 ms, the UE does not turn off its
receiver; when the DRX cycle is 1280 ms, the UE turns off its receiver in
certain conditions. The L.Cdrx.Sleep.TtiNum counter indicates that less than
7% power is saved but actually more than 20% power is saved after the DRX
cycle increases from 40 ms to 1280 ms, provided that the traffic model
remains unchanged.
 Monitoring the signaling reduction effect
NOTE:

If the value of RrcConnStateTimer.UlSynTimerDynDrx after dynamic DRX is
enabled is less than the value of RrcConnStateTimer.UlSynTimer before dynamic
DRX is enabled, the signaling saving effect decreases.
o Use the following counters to monitor the number of RRC connection setup
attempts in different scenarios and the changes in signaling overhead:
L.RRC.ConnReq.Att
L.RRC.ConnReq.Att.Emc,
L.RRC.ConnReq.Att.HighPri
L.RRC.ConnReq.Att.Mt
L.RRC.ConnReq.Att.MoSig
L.RRC.ConnReq.Att.MoData,
L.RRC.ConnReq.Att.DelayTol.
o Use the L.Paging.UU.Att counter to monitor changes in the number of UEs
paged on the Uu interface so as to indirectly monitor changes in signaling
overhead.
o Use the L.Signal.Num.Uu counter to directly monitor changes in signaling
overhead on the Uu interface.
o Use the following formula to calculate the total change in signaling overhead
on the S1 and Uu interfaces:
L.E-RAB.AttEst + (L.Signal.Num.DRX.Reconfig +
L.RRC.StateTrans.Syn2Unsyn) / 10
NOTE:
Signaling overhead for 10 RRC connection reconfigurations is equivalent to
that for one E-RAB establishment.
In reduced signaling mode, some UEs are considered to have compatibility issues if one of
the following conditions is met:
 The L.Signal.Num.DRX.Reconfig counter value increases sharply.
 The Uu interface trace result shows that two or more consecutive RRC connection
reconfigurations are performed each time a UE switches from the out-of-
synchronization state to the synchronization state. Each RRC connection
reconfiguration involves RRC Connection Reconfiguration and RRC Connection
Reconfiguration Complete messages.
Under these conditions, multiple RRC connection reconfigurations are performed each time
the UE switches from the out-of-synchronization state to the synchronization state. To avoid

an increase in abnormal signaling overhead caused by such a UE, you are advised to perform
the following operations:
1. Set the CellAccess.ReptSyncAvoidInd parameter to CFG(Configure) to prohibit
multiple successful synchronization procedures repeatedly initiated by such a UE
from triggering multiple RRC connection reconfigurations.
2. Set the CellAccess.ReptSyncAvoidTime parameter to specify the period during
which multiple successful synchronization procedures repeatedly initiated by such a
UE trigger only one RRC connection reconfiguration.
This section describes the parameters that can be modified to improve dynamic DRX
performance.
The following table describes the UE control timer parameters that can be modified in the
RrcConnStateTimer MO to adjust the balance between power saving and reduced signaling.
Parameter
Name
Parameter ID Data
Source
Setting Notes
UeInactive
Timer for
DynDRX
tyTimerDynDrx
Networ
k plan
(negoti
ation
not
require
d)
length of the UE inactivity timer
when dynamic DRX is enabled.
During the timer length, the
eNodeB monitors whether the UE
receives and transmits data. If the
UE does not receive or transmit
data before the timer expires, the
eNodeB releases the UE. If this
parameter is set too large, the
signaling amount decreases but
UEs consume more power.
 In power saving mode, it is
parameter remain
unchanged.
 In reduced signaling mode,
it is recommended that this
parameter be changed to a
large value.
UlSynTim
er for
DynDRX
RrcConnStateTimer.UlSynTim
erDynDRX
Networ
k plan
(negoti
ation
not
require
length of the uplink
synchronization timer when the
dynamic DRX is enabled. This
timer and the protection
mechanism determine whether to

Parameter
Name
Parameter ID Data
Source
Setting Notes
d) maintain uplink synchronization
for a UE. After this timer expires
and the protection period elapses,
the eNodeB no longer sends the
TA command to the UE. It is
recommended that the value of
this parameter be less than the
value of the
tyTimerDynDrx parameter.
The following table describes the cell-level DRX parameters that can be modified in the
CellDrxPara MO to improve DRX performance in the out-of-synchronization state.
Source
Setting Notes
LongDrxCycle for
Unsync
CellDrxPara.LongDrxCycleUnsync Network
plan
(negotiatio
n not
required)
This parameter
specifies the
long DRX
cycle for a UE
in the out-of-
synchronizatio
n state when
the eNodeB
does not
maintain
synchronizatio
n for the UE.
Onduration Timer
for Unsync
CellDrxPara.OndurationTimerUnsyn
c
Network
plan
(negotiatio
n not
required)
This parameter
specifies the
length of the
DRX On
Duration
Timer for a UE
in the out-of-
synchronizatio
n state when
the eNodeB
does not
maintain
synchronizatio
n for the UE.
DrxInactivityTime
r for Unsync
CellDrxPara.DrxInactivityTimerUnsy
nc
Network
plan
(negotiatio
This parameter
specifies the
length of the

Source
Setting Notes
n not
required)
DRX
Inactivity
Timer for a UE
in the out-of-
synchronizatio
n state when
the eNodeB
does not
maintain
synchronizatio
n for the UE.
Fault Description
Dynamic DRX is never triggered after the network is put into use.
Fault Handling
1. Run the LST CELLALGOSWITCH command to query the Dynamic DRX switch
setting.
o If the Dynamic DRX switch setting is DynDrxSwitch:Off, run the MOD
CELLALGOSWITCH command to set it to DynDrxSwitch:On.
o If the Dynamic DRX switch setting is DynDrxSwitch:On, go to 2.
2. Run the LST CELLSTANDARDQCI command to query the DRX parameter group
IDs corresponding to the QCIs used by the UE.
3. Run the LST DRXPARAGROUP command to check the Enter DRX Switch
settings for the DRX parameter group IDs.
o If any Enter DRX Switch setting is Off, run the MOD DRXPARAGROUP
command to turn on the corresponding DRX switch or stop the ongoing
service on the corresponding bearer.
o If all the Enter DRX Switch settings are On, contact Huawei technical
support.
10 Engineering Guidelines for LOFD-
00110502 High-Mobility-Triggered Idle
Mode
This chapter provides guidelines for configuring LOFD-00110502 High-Mobility-Triggered
Idle Mode.
10.1 When to Use High-Mobility-Triggered Idle Mode

When dynamic DRX is enabled or the UE inactivity timer is set to a large value, the number
of handovers of UEs moving at high speeds increases significantly as does the amount of
signaling. In this situation, it is recommended that LOFD-00110502 High-Mobility-Triggered
Idle Mode be enabled to prevent signaling bursts caused by frequent handovers.
You must obtain the following information:
 EARFCNs, coverage, and configurations of E-UTRAN cells
 eNodeB's capability to support LOFD-00110502 High-Mobility-Triggered Idle Mode
 Handover frequency and online duration of existing UEs, which help determine
whether this feature needs to be deployed
10.3 Planning
RF Planning
On live networks with no coverage problems, the high-mobility-triggered idle mode feature
prevents signaling bursts by reducing the handover frequency for high-mobility UEs.
Therefore, the networks must meet the following coverage requirements:
 No coverage holes.
 No overshoot coverage.
 No pilot pollution.
 No path loss imbalance between uplink and downlink.
Network Planning
N/A
Hardware Planning
N/A
10.4 Deployment
10.4.1 Requirements
N/A
N/A
License

The operator has purchased and activated the license for the feature listed in Table 10-1.
Table 10-1 License information for the high-mobility-triggered idle mode feature
Feature ID Feature Name Model License Control
Item
NE Sales
Unit
LOFD-001105 Dynamic DRX LT1S00DDRX00 Dynamic DRX
(FDD)
eNodeB per cell
After purchasing and activating this license, you must set the
CellAlgoSwitch.HighMobiTrigIdleModeSwitch parameter to ENABLE(Enable) to
enable the high-mobility-triggered idle mode feature.
RelatedFeatures
It is recommended that you enable LOFD-00110501 Dynamic DRX before enabling LOFD-
00110502 High-Mobility-Triggered Idle Mode.
negotiated with the EPC or peer transmission equipment
operator
Required Data
The following table describes the parameters that must be set in the CellAlgoSwitch MO to
configure the high-mobility-triggered idle mode feature.
Parameter
Name
Parameter ID Data
Source
Setting
Notes
LocalCellID CellAlgoSwitch.LocalCellID Network
plan
(negotiatio
n not
required)
This
paramete
r
specifies
the ID of
the local
cell, in
which the
high-

Parameter
Name
Parameter ID Data
Source
Setting
Notes
mobility-
triggered
idle
mode
feature
will be
enabled.
CellAlgoSwitc
h
CellAlgoSwitch.HighMobiTrigIdleModeSwitc
h
Network
plan
(negotiatio
n not
required)
This
paramete
r
specifies
whether
to enable
the high-
mobility-
triggered
idle
mode
feature.
To
enable
this
feature,
turn on
this
switch.
10.4.3 Precautions
None
N/A
10.4.5 Activation
Enter the values of the parameters listed in Table 10-2 in a summary data file, which also
contains other data for the new eNodeBs to be deployed. Then, import the summary data file
into the CME for batch configuration. For detailed instructions, see "Creating eNodeBs in
Batches" in the initial configuration guide for the eNodeB, which is available in the eNodeB
product documentation.

 The MOs in Table 10-2 are contained in a scenario-specific summary data file. In this
situation, set the parameters in the MOs, and then verify and save the file.
 Some MOs in Table 10-2 are not contained in a scenario-specific summary data file.
In this situation, customize a summary data file to include the MOs before you can set
the parameters.
Table 10-2 Parameter for activating the high-mobility-triggered idle mode feature
MO Sheet in the
Summary
Data File
Data
Local Cell ID, High
Mobility Triggered Idle
Mode Switch
Set the High Mobility
Triggered Idle Mode
Switch parameter to
ENABLE(Enable).
Batch Activation

Run the MOD CELLALGOSWITCH command with the High Mobility Triggered Idle
Mode Switch parameter set to ENABLE(Enable) to enable the high-mobility-triggered idle
mode feature.
MOD CELLALGOSWITCH :CellAlgoSwitch.HighMobiTrigIdleModeSwitch=false
If the L.UECNTX.Release.HighSpeed counter value is greater than 0, the high-mobility-
triggered idle mode feature has been enabled and taken effect.
N/A
10.4.8 Deactivation
Table 10-3 Parameter for deactivating the high-mobility-triggered idle mode feature
MO Sheet in the
Summary Data
File
Data
High Mobility Triggered
Idle Mode Switch
Set the High Mobility
Triggered Idle Mode
Switch parameter to
DISABLE(Disable).
Run the MOD CELLALGOSWITCH command to deactivate the high-mobility-triggered
idle mode feature.
MOD CELLALGOSWITCH:HighMobiTrigIdleModeSwitch=Disable;

10.5 Maintenance
After this feature is enabled, use counters to monitor performance:
 If the L.UECNTX.Release.HighSpeed counter value is greater than 0, this feature
has taken effect.
 If the number of handovers (measured by the following counters) after this feature is
enabled is much smaller than that before this feature is enabled, this feature has taken
effect.
Table 10-4 Counters for performance monitoring
Counter ID Counter Name Description
1526726996 L.HHO.IntraeNB.IntraFreq.ExecAttOut Number of intra-eNodeB
intra-frequency outgoing
handover executions in a
cell
1526726999 L.HHO.IntraeNB.InterFreq.ExecAttOut Number of intra-eNodeB
inter-frequency outgoing
cell
1526727002 L.HHO.IntereNB.IntraFreq.ExecAttOut Number of inter-eNodeB
intra-frequency outgoing
cell
1526727005 L.HHO.IntereNB.InterFreq.ExecAttOut Number of inter-eNodeB
inter-frequency outgoing
cell
N/A
Fault Description
The high-mobility-triggered idle mode feature has never been triggered after the network is
put into use.
Fault Handling

Run the LST CELLALGOSWITCH command to query the High Mobility Triggered Idle
Mode Switch parameter value.
 If the High Mobility Triggered Idle Mode Switch parameter value is Disable, run
the MOD CELLALGOSWITCH command to set it to ENABLE(Enable).
 If the High Mobility Triggered Idle Mode Switch parameter value is Enable,
contact Huawei technical support.
11 Parameters
Table 11-1 Parameters
MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
DrxPara
Group
EnterDrxSwit
ch
ADD
DRXPARA
GROUP
MOD
DRXPARA
GROUP
LST
DRXPARA
GROUP
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates whether
bearers to which the parameter
group applies support DRX.
The value ON indicates that
the bearers support DRX. The
value OFF indicates that the
bearers do not support DRX.
GUI Value Range: OFF(Off),
ON(On)
Unit: None
Actual Value Range: OFF, ON
Default Value: OFF(Off)
DrxPara
Group
OnDurationT
imer
ADD
DRXPARA
GROUP
MOD
DRXPARA
GROUP
LST
DRXPARA
GROUP
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates the length
of the On Duration Timer.
Because of the impact of CQI
reporting intervals and SRS
transmission intervals, the
actual value of this parameter
assigned to a UE may be
greater than the configured
value.
GUI Value Range: PSF1(1
PDCCH subframe), PSF2(2
PDCCH subframes), PSF3(3
PDCCH subframes),

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
PSF10(10 PDCCH
subframes), PSF20(20
PDCCH subframes),
PSF30(30 PDCCH
PDCCH subframes),
PSF50(50 PDCCH
PDCCH subframes),
PSF80(80 PDCCH
PDCCH subframes),
PSF200(200 PDCCH
subframes)
Unit: subframe
Actual Value Range: PSF1,
PSF2, PSF3, PSF4, PSF5,
PSF80, PSF100, PSF200
Default Value: PSF2(2
PDCCH subframes)
DrxPara
Group
DrxInactivity
Timer
ADD
DRXPARA
GROUP
MOD
DRXPARA
GROUP
LST
DRXPARA
GROUP
LBFD-
002017
/
TDLBF
D-
002017
of the DRX inactivity timer.
PDCCH subframes),
PSF10(10 PDCCH
PDCCH subframes),
PSF30(30 PDCCH
PDCCH subframes),
PSF50(50 PDCCH
PDCCH subframes),
PSF80(80 PDCCH

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
PDCCH subframes),
PSF200(200 PDCCH
PDCCH subframes),
PSF500(500 PDCCH
PDCCH subframes),
PSF1280(1280 PDCCH
PDCCH subframes),
PSF2560(2560 PDCCH
subframes)
Unit: subframe
PSF80, PSF100, PSF200,
PSF300, PSF500, PSF750,
PSF1280, PSF1920, PSF2560
PDCCH subframes)
DrxPara
Group
DrxReTxTim
er
ADD
DRXPARA
GROUP
MOD
DRXPARA
GROUP
LST
DRXPARA
GROUP
LBFD-
002017
/
TDLBF
D-
002017
of the DRX Retransmission
Timer.
PDCCH subframes),
PSF16(16 PDCCH
PDCCH subframes),
PSF33(33 PDCCH subframes)
Unit: subframe

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
PSF16, PSF24, PSF33
PDCCH subframes)
DrxPara
Group
LongDrxCycl
e
ADD
DRXPARA
GROUP
MOD
DRXPARA
GROUP
LST
DRXPARA
GROUP
LBFD-
002017
/
TDLBF
D-
002017
of the long DRX cycle.
Because of the impact of the
SRS bandwidth and TA period
specified by the
TimeAlignmentTimer
parameter, the actual value of
this parameter assigned to a
UE may be less than the
configured value. In addition,
the configured value will be
rounded down to an integral
multiple of 10. Therefore, you
are advised to configure this
parameter to a value that is an
integral multiple of 10. If users
hope that the value actually
assigned to a UE is equal to or
greater than 80 ms, set the
TimeAlignmentTimer
parameter to a value equal to
or greater than 10240 ms. If
the TimingAdvCmdOptSwitch
parameter is set to ON, it is
recommended that the
LongDrxCycle parameter be
set to a value smaller than or
equal to 320 ms. Otherwise,
the uplink time alignment
performance of UEs is
affected. If the
TimingAdvCmdOptSwitch
TimeAlignmentTimer
parameter be set to sf10240. A
smaller value of the
TimeAlignmentTimer
parameter, such as sf5120,
increases the probability that
UEs in DRX mode become
uplink asynchronized. The

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
length of the long DRX cycle
must be smaller than the
length of the PDCP packet
discarding timer for the
corresponding QCI.
Otherwise, packet loss occurs
during a ping operation or
low-traffic service.
GUI Value Range: SF10(10
subframes), SF20(20
subframes), SF32(32
subframes), SF40(40
subframes), SF64(64
subframes), SF80(80
subframes), SF128(128
subframes)
Unit: subframe
Actual Value Range: SF10,
SF20, SF32, SF40, SF64,
SF80, SF128, SF160, SF256,
SF320, SF512, SF640,
SF1024, SF1280, SF2048,
SF2560
Default Value: SF40(40
subframes)
DrxPara
Group
ShortDrxCycl
e
ADD
DRXPARA
GROUP
MOD
DRXPARA
GROUP
LBFD-
002017
/
TDLBF
D-
002017
of the short DRX cycle.
According to 3GPP
specifications, the length of a
long DRX cycle must be an
integer multiple of that of a
short DRX cycle. In addition,
the actual value of

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
LST
DRXPARA
GROUP
LongDrxCycle assigned to a
configured value because of
the impact of the SRS
bandwidth and TA period
specified by the
TimeAlignmentTimer
parameter. Therefore, the
actual value of ShortDrxCycle
assigned to a UE may be less
than the configured value.
subframes), SF5(5 subframes),
SF8(8 subframes), SF10(10
subframes), SF16(16
subframes), SF20(20
subframes), SF32(32
subframes), SF40(40
subframes), SF64(64
subframes), SF80(80
subframes)
Unit: subframe
SF5, SF8, SF10, SF16, SF20,
SF32, SF40, SF64, SF80,
SF128, SF160, SF256, SF320,
SF512, SF640
subframes)
DrxPara
Group
DrxShortCycl
eTimer
ADD
DRXPARA
GROUP
MOD
DRXPARA
LBFD-
002017
/
TDLBF
D-
002017
of the DRX Short Cycle
Timer. If this parameter is set
to 1, the length of this timer is
one short DRX cycle. If this
parameter is set to 2, the
length of this timer is two

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
GROUP
LST
DRXPARA
GROUP
short DRX cycles. If this
parameter is set to a large
value, a UE for which short
DRX cycles are enabled stays
in short-cycle DRX for a long
time. For details, see 3GPP TS
36.321 5.7.
GUI Value Range: 1~16
Unit: None
Actual Value Range: 1~16
Default Value: 1
DrxPara
Group
SupportShort
Drx
ADD
DRXPARA
GROUP
MOD
DRXPARA
GROUP
LST
DRXPARA
GROUP
LBFD-
002017
/
TDLBF
D-
002017
short DRX cycles are enabled.
GUI Value Range:
UU_DISABLE(Disable),
UU_ENABLE(Enable)
Unit: None
Actual Value Range:
UU_DISABLE,
UU_ENABLE
Default Value:
UU_ENABLE(Enable)
Drx DrxAlgSwitc
h
MOD DRX
LST DRX
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates the DRX
switch. The setting of this
parameter has no effect on
dynamic DRX. DRX applies
to a CA UE only when this
parameter is set to ON(On) on
both eNodeBs to which the
PCell and SCell of the CA UE
belong.
ON(On)
Unit: None

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
CellDrxP
ara
FddEnterDrx
Thd
MOD
CELLDRX
PARA
LST
CELLDRX
PARA
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates the
threshold for UEs to enter the
discontinuous reception
(DRX) mode in a cell that
operates in FDD mode. This
algorithm. It is expressed as a
proportion of the transmission
time intervals (TTIs) with data
transmission to the total TTIs.
If the measurement result of
UE traffic is equal to or lower
than this threshold, the
eNodeB determines that the
UE should remain in DRX
mode or the UE should be
triggered to enter DRX mode.
If both the values of the
FddExitDrxThd and
FddEnterDrxThd parameters
are small and close to each
other, the UE frequently enters
and exits the DRX mode.
When both the
FddEnterDrxThd parameter
and the FddExitDrxThd
parameter are set to 1000 and
DRX is enabled, the eNodeB
directly determines that the UE
should enter or exit the DRX
mode, but not according to the
measurement result of UE
traffic.
Unit: per mill
Default Value: 1000
CellDrxP
ara
DataAmount
StatTimer
MOD
CELLDRX
LBFD-
002017
of the UE traffic measurement

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
PARA
LST
CELLDRX
PARA
/
TDLBF
D-
002017
period. The traffic volume of a
UE during this period is
measured. Based on the
measurement result, the DRX
algorithm decides whether the
UE should enter or exit DRX.
Unit: 20ms
Default Value: 30
CellDrxP
ara
FddExitDrxT
hd
MOD
CELLDRX
PARA
LST
CELLDRX
PARA
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates the
threshold for UEs to exit the
(DRX) mode in a cell that
operates in FDD mode. This
algorithm. It is expressed as a
proportion of the transmission
time intervals (TTIs) with data
transmission to the total TTIs.
If the measurement result of
UE traffic is higher than this
determines that the UE should
remain in the non-DRX mode
or the UE should be triggered
to exit the DRX mode. If the
value of the FddExitDrxThd
parameter is set to 1000 and
the value of the
FddEnterDrxThd parameter is
set to a value smaller than
1000, the UE will not exit the
DRX mode once entering the
DRX mode. If both the values
of the FddExitDrxThd and
FddEnterDrxThd parameters
are small and close to each
other, the UE frequently enters
and exits the DRX mode.
When both the
FddEnterDrxThd parameter

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
and the FddExitDrxThd
parameter are set to 1000 and
DRX is enabled, the eNodeB
directly determines that the UE
should enter or exit the DRX
mode, but not according to the
measurement result of UE
traffic.
Unit: per mill
Default Value: 1000
Drx ShortDrxSwit
ch
MOD DRX
LST DRX
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates whether to
enable or disable short DRX
cycles. Short DRX cycles
reduce the traffic delay.
ON(On)
Unit: None
Default Value: ON(On)
Drx LongDrxCycl
eSpecial
MOD DRX
LST DRX
LBFD-
002017
/
TDLBF
D-
002017
of a long DRX cycle that is
applied only to non-power-
saving UEs whose subscriber
profile ID for RAT/frequency
priority (RFSP) indexes are
contained in the RFSP index
set or to UEs whose capability
information indicates that they
do not support power saving.
Because of the impact of the
specified by the
TimeAlignmentTimer
parameter, the actual value of

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
configured value. In addition,
the configured value will be
rounded down to an integral
multiple of 10. Therefore, you
are advised to configure this
parameter to a value that is an
integral multiple of 10. If users
hope that the value actually
assigned to a UE is equal to or
greater than 80 ms, set the
TimeAlignmentTimer
parameter to a value equal to
or greater than 10240 ms. If
the TimingAdvCmdOptSwitch
LongDrxCycleSpecial
smaller than or equal to 320
ms. Otherwise, the uplink time
alignment performance of UEs
is affected. If the
TimeAlignmentTimer
parameter be set to sf10240. A
smaller value of the
TimeAlignmentTimer
parameter, such as sf5120,
increases the probability that
UEs in DRX mode become
uplink asynchronized.
subframes), SF20(20
subframes), SF32(32
subframes), SF40(40
subframes), SF64(64
subframes), SF80(80

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
subframes)
Unit: subframe
SF20, SF32, SF40, SF64,
SF80, SF128, SF160, SF256,
SF320, SF512, SF640,
SF1024, SF1280, SF2048,
SF2560
subframes)
Drx LongDrxCycl
eForAnr
MOD DRX
LST DRX
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates the long
DRX cycle for intra-RAT
ANR. If intra-RAT ANR is
enabled, this parameter is valid
regardless of whether DRX is
enabled. If a long DRX cycle
is configured for ANR
measurement, it is
equal to or greater than 256 ms
to ensure that the UE can
successfully obtain the CGI of
a cell. However, if this
parameter is set to a large
value, the delay of obtaining
the CGI is large, and therefore
the system delay increases.

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
subframes)
Unit: subframe
SF160, SF256, SF320, SF512,
SF640, SF1024, SF1280,
SF2048, SF2560
subframes)
Drx LongDRXCy
cleforIRatAnr
MOD DRX
LST DRX
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates the long
DRX cycle for inter-RAT
ANR. If inter-RAT ANR is
enabled, this parameter is valid
regardless of whether DRX is
enabled. If there are multiple
inter-RAT systems, and all of
them require inter-RAT ANR
measurements, it is
parameter be set to the
maximum value of the long
DRX cycle configured for
inter-RAT ANR
measurements. Otherwise, the
success rate for inter-RAT
ANR measurements may be
affected.
subframes)
Unit: subframe
SF160, SF256, SF320, SF512,

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
SF640, SF1024, SF1280,
SF2048, SF2560
subframes)
Drx SupportShort
DrxSpecial
MOD DRX
LST DRX
LBFD-
002017
/
TDLBF
D-
002017
enable or disable short DRX
cycles for non-power-saving
UEs whose RFSP indexes are
GUI Value Range:
UU_DISABLE(Disable),
UU_ENABLE(Enable)
Unit: None
Actual Value Range:
UU_DISABLE,
UU_ENABLE
Default Value:
UU_DISABLE(Disable)
Drx ShortDrxCycl
eSpecial
MOD DRX
LST DRX
LBFD-
002017
/
TDLBF
D-
002017
of a short DRX cycle that is
applied only to non-power-
saving UEs whose subscriber
profile ID for RAT/frequency
priority (RFSP) indexes are
According to 3GPP
specifications, the length of a
long DRX cycle must be an
integer multiple of that of a
short DRX cycle. In addition,
the actual value of
LongDrxCycleSpecial
than the configured value
because of the impact of the

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
specified by the
TimeAlignmentTimer
parameter. Therefore, the
actual value of
ShortDrxCycleSpecial
than the configured value.
subframes), SF5(5 subframes),
SF8(8 subframes), SF10(10
subframes), SF16(16
subframes), SF20(20
subframes), SF32(32
subframes), SF40(40
subframes), SF64(64
subframes), SF80(80
subframes)
Unit: subframe
SF5, SF8, SF10, SF16, SF20,
SF32, SF40, SF64, SF80,
SF128, SF160, SF256, SF320,
SF512, SF640
subframes)
Drx DrxShortCycl
eTimerSpecia
l
MOD DRX
LST DRX
LBFD-
002017
/
TDLBF
D-
002017
of the DRX Short Cycle Timer
that applies only to non-
power-saving UEs whose
RFSP indexes are contained in
the RFSP index set or to UEs
whose capability information
indicates that they do not
support power saving. The
length of this timer is

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
expressed in the number of
short DRX cycles. If this
parameter is set to 1, the
length of this timer is one short
DRX cycle. If this parameter is
set to 2, the length of this timer
is two short DRX cycles. For
details, see 3GPP TS 36.321
5.7.
Unit: None
Default Value: 1
Drx OnDurationT
imerSpecial
MOD DRX
LST DRX
LBFD-
002017
/
TDLBF
D-
002017
of the On Duration Timer that
applies only to non-power-
saving UEs whose RFSP
indexes are contained in the
RFSP index set or to UEs
support power saving. For
details about this timer, see
3GPP TS 36.321. Because of
the impact of CQI reporting
intervals and SRS transmission
intervals, the actual value of
UE may be greater than the
configured value.
PDCCH subframes),
PSF10(10 PDCCH
PDCCH subframes),

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
PSF30(30 PDCCH
PDCCH subframes),
PSF50(50 PDCCH
PDCCH subframes),
PSF80(80 PDCCH
PDCCH subframes),
PSF200(200 PDCCH
subframes)
Unit: subframe
PDCCH subframes)
Drx DrxInactivity
TimerSpecial
MOD DRX
LST DRX
LBFD-
002017
/
TDLBF
D-
002017
of the DRX Inactivity Timer
that applies only to non-
power-saving UEs whose
RFSP indexes are contained in
the RFSP index set or to UEs
support power saving. For
details about this timer, see
3GPP TS 36.321.
PDCCH subframes),
PSF10(10 PDCCH
PDCCH subframes),
PSF30(30 PDCCH

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
PDCCH subframes),
PSF50(50 PDCCH
PDCCH subframes),
PSF80(80 PDCCH
PDCCH subframes),
PSF200(200 PDCCH
PDCCH subframes),
PSF500(500 PDCCH
PDCCH subframes),
PSF1280(1280 PDCCH
PDCCH subframes),
PSF2560(2560 PDCCH
subframes)
Unit: subframe
PSF80, PSF100, PSF200,
PSF300, PSF500, PSF750,
PSF1280, PSF1920, PSF2560
PDCCH subframes)
SpidCfg Spid ADD
SPIDCFG
LST
SPIDCFG
MOD
SPIDCFG
RMV
SPIDCFG
LOFD-
001054
01 /
TDLOF
D-
001054
01
LOFD-
001059
/
TDLOF
D-
001059
Camp &
Handover
Based on
SPID
UL Pre-
allocation
Based on
SPID
Meaning: Indicates the
subscriber profile ID (SPID).
Unit: None
Default Value: None

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
SpidCfg DrxStatus ADD
SPIDCFG
MOD
SPIDCFG
LST
SPIDCFG
LBFD-
002017
/
TDLBF
D-
002017
use normal or special DRX. If
this parameter is set to TRUE,
ordinary DRX parameters are
applied to UEs with the SPID.
If this parameter is set to
FALSE, special DRX
parameters are applied to UEs
with the SPID.
GUI Value Range:
FALSE(FALSE),
TRUE(TRUE)
Unit: None
Actual Value Range: FALSE,
TRUE
Default Value:
FALSE(FALSE)
CellAlgo
Switch
DynDrxSwitc
h
MOD
CELLALG
OSWITCH
LST
CELLALG
OSWITCH
LBFD-
002017/
TDLBF
D-
002017
DRX,
LOFD-
0011050
1/TDLO
FD-
0011050
1:Dynam
ic DRX,
TDLBFD
-
070112:S
mart
DRX
Meaning: Indicates whether to
enable dynamic discontinuous
reception (DRX) or smart
DRX. Unlink dynamic DRX
and smart DRX apply only to
LTE TDD cells and requires
the mobility speed of UEs to
be reported. DynDrxSwitch: If
this switch is on, dynamic
DRX applies to newly
admitted UEs to reduce
signaling overheads or
decrease UE power
consumption. If this switch is
off, dynamic DRX does not
apply to newly admitted UEs.
Dynamic DRX applies to
carrier aggregation (CA) UEs
only when this switch is on in
both the primary serving cell
(PCell) and secondary serving
cell (SCell). SmartDrxSwitch:
If this switch is on, smart DRX
applies to newly admitted UEs
that support mobility speed

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
reporting. The eNodeB
dynamically sets DRX-related
parameters based on UE
mobility speeds. If this switch
is off, smart DRX does not
apply to newly admitted UEs.
Smart DRX applies to CA UEs
only when this switch is on in
both the PCell and SCell. If
DynDrxSwitch is on, setting
the DrxAlgSwitch parameter
to ON cannot ensure that DRX
is enabled on synchronized
UEs.
GUI Value Range:
DynDrxSwitch(DynDrxSwitch
),
SmartDrxSwitch(SmartDrxSw
itch)
Unit: None
Actual Value Range:
DynDrxSwitch,
SmartDrxSwitch
Default Value:
DynDrxSwitch:Off,
SmartDrxSwitch:Off
CellDrxP
ara
LongDrxCycl
eUnsync
MOD
CELLDRX
PARA
LST
CELLDRX
PARA
LOFD-
001105
TDLBF
D-
002017
Dynamic
DRX
DRX
Meaning: Indicates the length
of the long DRX cycle for a
UE in the uplink out-of-
synchronization state. Set this
parameter to a value greater
than the value of
LongDrxCycle; otherwise, the
power saving gain of the DRX
for UEs in the uplink out-of-
synchronization state
decreases.
subframes), SF20(20
subframes), SF32(32
subframes), SF40(40

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
subframes), SF64(64
subframes), SF80(80
subframes)
Unit: subframe
SF20, SF32, SF40, SF64,
SF80, SF128, SF160, SF256,
SF320, SF512, SF640,
SF1024, SF1280, SF2048,
SF2560
subframes)
CellDrxP
ara
OndurationTi
merUnsync
MOD
CELLDRX
PARA
LST
CELLDRX
PARA
LOFD-
001105
01 /
TDLOF
D-
001105
01
LOFD-
001105
02 /
TDLOF
D-
001105
02
Dynamic
DRX
High-
Mobility-
Triggered
Idle
Mode
Meaning: Indicates the DRX
onduration timer for UEs when
the eNodeB does not maintain
synchronization for UEs.
PDCCH subframes),
PSF10(10 PDCCH
PDCCH subframes),
PSF30(30 PDCCH
PDCCH subframes),
PSF50(50 PDCCH

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
PDCCH subframes),
PSF80(80 PDCCH
PDCCH subframes),
PSF200(200 PDCCH
subframes)
Unit: subframe
PDCCH subframes)
CellDrxP
ara
DrxInactivity
TimerUnsync
MOD
CELLDRX
PARA
LST
CELLDRX
PARA
LOFD-
001105
/
TDLOF
D-
001105
Dynamic
DRX
Meaning: Indicates the DRX
inactivity timer for UEs when
the eNodeB does not maintain
synchronization for UEs.
GUI Value Range:
PSF200(200 PDCCH
PDCCH subframes),
PSF500(500 PDCCH
PDCCH subframes),
PSF1280(1280 PDCCH
PDCCH subframes),
PSF2560(2560 PDCCH
subframes)
Unit: subframe
PSF300, PSF500, PSF750,
PSF1280, PSF1920, PSF2560
PDCCH subframes)
RrcConn
StateTim
er
UeInactivityT
imerDynDrx
MOD
RRCCONN
STATETIM
LOFD-
001105
01 /
Dynamic
DRX
of the UE inactivity timer for
DRX UEs when dynamic

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
ER
LST
RRCCONN
STATETIM
ER
TDLOF
D-
001105
01
LOFD-
001105
02 /
TDLOF
D-
001105
02
High-
Mobility-
Triggered
Idle
Mode
DRX is enabled. If the
eNodeB detects that a UE has
neither received nor sent data
for a duration exceeding the
value of this parameter, the
eNodeB releases the RRC
connection for the UE. A large
value of this parameter reduces
the amount of signaling but
increase UE power
consumption.You are advised
to set this parameter to a value
greater than the value of
UlSynTimerDynDrx.In power
saving mode, you are advised
to set this parameter
significantly different to the
value of the
UlSynTimerDynDrx
parameter, for example a gap
of 10 seconds, to avoid power
consumption increase due to
the increase of signaling.
Unit: s
Default Value: 200
RrcConn
StateTim
er
UlSynTimer
DynDrx
MOD
RRCCONN
STATETIM
ER
LST
RRCCONN
STATETIM
ER
LOFD-
001105
01 /
TDLOF
D-
001105
01
LOFD-
001105
02 /
TDLOF
D-
001105
02
Dynamic
DRX
High-
Mobility-
Triggered
Idle
Mode
Meaning: Indicates the timer
used to govern the period in
which the eNodeB maintains
uplink synchronization for a
DRX UE when dynamic DRX
is enabled. After this timer
expires, the eNodeB does not
send Timing Advance
Command to the UE. You are
advised to set this parameter to
a value smaller than the value
of
UeInactivityTimerDynDrx.In
power saving mode, you are
advised to set this parameter

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
significantly different to the
value of the
UeInactivityTimerDynDrx
parameter, for example a gap
of 10 seconds, to avoid power
consumption increase due to
the increase of signaling.
Unit: s
Default Value: 20
TimeAlig
nmentTi
mer
TimeAlignme
ntTimer
MOD
TATIMER
LST
TATIMER
None None Meaning: Indicates the length
of the uplink time alignment
timer for UEs in the cell. A UE
is considered not time-aligned
in the uplink if the timer
expires.
subframes),
INFINITY(Infinity)
Unit: None
SF750, SF1280, SF1920,
SF2560, SF5120, SF10240,
INFINITY
Default Value:
INFINITY(Infinity)
RrcConn
StateTim
er
UeInactiveTi
mer
MOD
RRCCONN
STATETIM
ER
LBFD-
002007
/
TDLBF
D-
RRC
Connecti
on
Manage
ment
of the UE inactivity timer for
UEs that are running non-
QCI1 services. If the eNodeB
detects that a UE has neither

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
LST
RRCCONN
STATETIM
ER
002007 received nor sent data for a
duration exceeding the value
of this parameter, the eNodeB
releases the RRC connection
for the UE. If this parameter is
set to 0, the UE inactivity
timer is not used. If the
parameter setting is changed,
the change applies to UEs that
newly access the network.
Unit: s
Default Value: 20
RrcConn
StateTim
er
UlSynTimer MOD
RRCCONN
STATETIM
ER
LST
RRCCONN
STATETIM
ER
LBFD-
002007
/
TDLBF
D-
002007
RRC
Connecti
on
Manage
ment
Meaning: Indicates the timer
used to govern the period in
which the eNodeB maintains
uplink synchronization for a
UE. After this timer expires,
the eNodeB does not send
Timing Advance Command to
the UE. This parameter does
not take effect if it is set to 0.
That is, the eNodeB will
constantly send Timing
Advance Command to the UE
to maintain uplink
synchronization for the UE.
Unit: s
Default Value: 180
CellAlgo
Switch
HighMobiTri
gIdleModeS
witch
MOD
CELLALG
OSWITCH
LST
CELLALG
LOFD-
001106
TDLOF
D-
001105
High-
Mobility-
Triggered
Idle
Mode
enable the high-mobility-
triggered-idle switch. When
this parameter is set to
ENABLE, UEs in high
mobility are released and enter

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
OSWITCH 02 High-
Mobility-
Triggered
Idle
Mode
the idle mode, and therefore
the signaling impact on the
network caused by frequent
handovers are reduced. When
DISABLED, UEs in high
mobility are not released.
GUI Value Range:
DISABLE(Disable),
ENABLE(Enable)
Unit: None
Actual Value Range:
DISABLE, ENABLE
Default Value:
DISABLE(Disable)
CellUlsc
hAlgo
SriFalseDetT
hdSwitch
MOD
CELLULS
CHALGO
LST
CELLULS
CHALGO
LBFD-
002003
/
TDLBF
D-
002003
Physical
Channel
Manage
ment
increase the scheduling request
indicator (SRI) false detection
threshold for UEs in the
(DRX) state. If this parameter
is set to ON, the threshold
increases and the SRI false
detection probability
decreases. If this parameter is
set to OFF, both the threshold
and the probability remain
unchanged.
ON(On)
Unit: None
CellAlgo
Switch
UlSchSwitch MOD
CELLALG
OSWITCH
LST
LOFD-
001016
/
TDLOF
D-
VoIP
Semi-
persistent
Scheduli
Meaning:
This parameter indicates the
switches related to uplink (UL)
scheduling in the cell. The

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
CELLALG
OSWITCH
001016
LOFD-
001048
/
TDLOF
D-
001048
LOFD-
001015
02 /
TDLOF
D-
001015
02
TDLBF
D-
002025
LBFD-
070102
/
TDLBF
D-
070102
LOFD-
001002
LOFD-
001058
LBFD-
001006
ng
TTI
Bundling
Dynamic
Scheduli
ng
Basic
Scheduli
ngTDLO
FD-
070224:S
cheduling
Based on
Max Bit
Rate
MBR>G
BR
Configur
ation
UL 2x2
MU-
MIMO
UL 2x4
MU-
MIMO
AMC
switches are used to enable or
disable specific UL scheduling
functions.
SpsSchSwitch: Indicates the
switch used to enable or
disable semi-persistent
scheduling during talk spurts
of VoIP services. If this switch
is on, semi-persistent
scheduling is applied during
talk spurts of VoIP services. If
this switch is off, dynamic
scheduling is applied during
talk spurts of VoIP services.
SinrAdjustSwitch: Indicates
whether to adjust the measured
signal to interference plus
noise ratio (SINR) based on
ACK/NACK in UL hybrid
automatic repeat request
(HARQ) processes.
PreAllocationSwitch: Indicates
whether to enable
preallocation in the uplink.
When this switch is on: (1) If
SmartPreAllocationSwitch is
off and a UE is in the
(DRX) state, preallocation is
disabled for the UE in the
uplink; (2) If
off and the UE is not in the
DRX state, preallocation is
enabled for the UE in the
uplink; (3) If
on and the
SmartPreAllocationDuration
parameter value is greater than
0, smart preallocation is
enabled for the UE in the
uplink; (4) If

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
on and the
SmartPreAllocationDuration
parameter value is 0,
preallocation is disabled for
the UE in the uplink. If this
switch is off, preallocation is
disabled for the UE in the
uplink. If bearer-level
preallocation or bearer-level
smart preallocation is enabled
for a UE with a QCI class,
cell-level preallocation and
cell-level smart preallocation
do not apply to UEs with the
QCI.
UlVmimoSwitch: Indicates
whether to enable multi-user
MIMO (MU-MIMO) in the
UL. If this switch is on, the
eNodeB performs MU-MIMO
pairing among UEs based on
related principles. UEs
forming a pair transmit data
using the same time-frequency
resources, which improves
system throughput and spectral
efficiency.
TtiBundlingSwitch: Indicates
whether to enable transmission
time interval (TTI) bundling.
If TTI bundling is enabled,
more transmission
opportunities are available to
UEs within the delay budget
for VoIP services on the Uu
interface, thereby improving
uplink coverage.
ImIcSwitch: Indicates whether
to enable the intermodulation
interference (IM) cancellation
for UEs. When data is
transmitted in both uplink and
downlink, two IM components
are generated symmetrically

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
beside the Direct Current (DC)
subcarrier on the downlink
receive channel due to
interference from uplink radio
signals. If this switch is on, IM
component elimination is
performed on UEs. If this
switch is off, IM component
elimination is not performed
on UEs. This switch applies
only to FDD cells working in
frequency band 20.
SmartPreAllocationSwitch:
Indicates whether to enable
uplink smart preallocation
when preallocation is enabled
(by turning on
PreAllocationSwitch). If both
PreAllocationSwitch and
SmartPreAllocationSwitch are
on and
SmartPreAllocationDuration is
set to a value greater than 0,
uplink smart preallocation is
enabled; otherwise, uplink
smart preallocation is disabled.
PuschDtxSwitch: Indicates
whether the eNodeB uses the
physical uplink shared channel
(PUSCH) discontinuous
transmission (DTX) detection
result during UL scheduling.
In an LTE FDD cell, if this
switch is on, based on the
PUSCH DTX detection result,
the eNodeB determines
whether to perform adaptive
retransmission during UL
scheduling and also adjusts the
control channel element (CCE)
aggregation level of the
physical downlink control
channel (PDCCH) carrying
downlink control information
(DCI) format 0. If an FDD cell

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
is established on an LBBPc,
this switch takes effect only
when the cell uses less than
four RX antennas and normal
cyclic prefix (CP) in the uplink
and the SrsCfgInd parameter
in the SRSCfg MO is set to
BOOLEAN_TRUE. Note that
the LBBPc does not support
PUSCH DTX detection for
UEs with MU-MIMO applied.
In an LTE TDD cell, this
switch takes effect only when
the cell is configured with
subframe configuration 2 or 5.
After this switch takes effect,
the eNodeB adjusts the CCE
aggregation level based on the
PUSCH DTX detection
results. Note that LTE TDD
cells established on LBBPc
boards do not support PUSCH
DTX detection.
UlIblerAdjustSwitch: Indicates
whether to enable the uplink
initial block error rate
(IBLER) adjustment
algorithm. If this switch is on,
IBLER convergence target is
adjusted to increase the cell
edge throughput. When this
switch is on, the recommended
configuration of parameter
DopMeasLevel in MO
CellUlschAlgo is CLASS_1.
UlEnhancedFssSwitch:
uplink load-based enhanced
frequency selection. This
switch applies only to FDD
cells.
UlIicsAlgoSwitch: Indicates
whether to enable the UL IICS
algorithm. If this switch is on,

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
interference can be reduced
based on accurate detection of
user attributes and resource
scheduling coordination,
thereby increasing the cell
edge throughput. This switch
applies only to LTE TDD
networks.
UlEnhancedSrSchSwitch:
Indicates whether uplink re-
scheduling is performed only
when the On Duration timer
for the DRX long cycle starts.
Uplink re-scheduling is
required if the number of
HARQ retransmissions for a
scheduling request (SR)
reaches the maximum value
but the scheduling still fails. If
this switch is on, uplink re-
scheduling is performed only
when the On Duration timer
for the DRX long cycle starts.
If this switch is off, uplink re-
scheduling is performed
immediately when the number
of HARQ retransmissions for
SR reaches the maximum
value but the scheduling still
fails. It is recommended that
the switch be turned on in live
networks.
SchedulerCtrlPowerSwitch:
Indicates whether the uplink
scheduler performs scheduling
without considering power
control restrictions. If this
switch is on, the uplink
scheduler performs scheduling
without considering power
control restrictions, which
ensures full utilization of the
transmit power for all UEs. If
this switch is off, the uplink
scheduler considers power

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
control restrictions while
performing scheduling, which
prevents full utilization of the
transmit power for UEs at far
or medium distances from the
cell center.
UlMinGbrSwitch: Indicates
whether to enable uplink
minimum guaranteed bit rate
(GBR). If this switch is on, the
minimum GBR of non-GBR
services is ensured by
increasing the scheduling
priority of UEs whose non-
GBR service rates are lower
than the minimum GBR of
GBR services.
UlMbrCtrlSwitch: Indicates
whether to enable uplink
scheduling based on the
maximum bit rate (MBR) and
guaranteed bit rate (GBR) on
the GBR bearer. If this switch
is on, the eNodeB performs
uplink scheduling on GBR
bearers based on the MBR and
GBR. If this switch is off, the
eNodeB performs uplink
scheduling on GBR bearers
based only on the GBR.
MbrUlSchSwitch: Indicates
whether the eNodeB performs
uplink scheduling based on
MBR. If this switch is on, the
eNodeB prioritizes UEs based
on the MBRs during uplink
scheduling. This parameter
cells.
UeAmbrUlSchSwitch:
Indicates whether the eNodeB
performs uplink scheduling
based on the aggregate

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
maximum bit rate (AMBR) of
UEs. If this switch is on, the
eNodeB prioritizes UEs based
on the AMBRs during uplink
scheduling. This parameter
cells.
UlEnhancedDopplerSwitch:
enhanced uplink scheduling
based on mobility speed. If
this switch is on, enhanced
uplink scheduling based on
mobility speed is enabled. If
this switch is on, the eNodeB
determines whether a UE is a
low-mobility UE based on the
Doppler measurement in the
physical layer, and then
improves uplink frequency
selective scheduling
performance for low-mobility
UEs. If this switch is off,
enhanced uplink scheduling
based on mobility speed is
disabled. This switch takes
effect only when the
UlEnhancedDopplerSwitch
parameter is set to CLASS_1.
This switch does not take
effect on cells established on
an LBBPc.
UlRaUserSchOptSw: Indicates
whether the eNodeB raises the
scheduling priority of UEs
sending uplink access
signaling, including MSG5
and the RRC Connection
Reconfiguration Complete
message. If this switch is on,
the eNodeB raises the
signaling. If this switch is off,
the eNodeB does not raise the

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
signaling.
UlLast2RetransSchOptSwitch:
optimization on the scheduling
policy for the last two
retransmissions. If this switch
is on, optimization on the
scheduling policy for the last
two retransmissions is enabled.
If the UE transmit power is not
limited, adaptive
retransmission is used and the
number of RBs increases in
the last two retransmissions to
increase the receive success
rate of the last two
retransmissions and decrease
uplink RBLER. If this switch
is off, optimization on the
scheduling policy for the last
two retransmissions is
disabled. This switch does not
apply to LTE TDD cells.
UlInterfFssSwitch: Indicates
whether to enable interference-
based uplink frequency-
selective scheduling. This
switch applies only to LTE
FDD networks.
UlSmallRBSpectralEffOptSw:
spectral efficiency
optimization on uplink small
RBs. If this switch is on, the
optimization is enabled,
thereby ensuring that the
transmission block size
calculated based on optimized
spectral efficiency is not less
than the traffic volume needs
to be scheduled. If this switch
is off, the optimization is

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
disabled.
PuschUsePucchRbSwitch:
Indicates whether PUCCH
RBs can be occupied by the
PUSCH. In scenarios with a
single user, if this switch is on,
PUCCH RBs can be occupied
by the PUSCH. If this switch
is off, PUCCH RBs cannot be
occupied by the PUSCH. In
scenarios with multiple users,
PUCCH RBs cannot be
occupied by the PUSCH no
matter whether this switch is
on or off.
PuschDtxSchOptSwitch: If
this switch is on, the eNodeB
determines whether to perform
adaptive retransmission during
UL scheduling based on the
PUSCH DTX detection result.
This switch takes effect only
when subframe configuration
2 or 5 is used. If a TDD cell is
established on an LBBPc,
PUSCH DTX detection is not
supported. This switch applies
only to LTE TDD cells.
PrachRbReuseSwitch:If this
switch is on, the PUSCH and
PRACH transmissions can use
the same resource.
If this switch is off, the
PUSCH and PRACH
transmissions cannot use the
same resource. This switch
cells.
ULFSSAlgoswitch:If this
switch is off, uplink
frequency-selective scheduling
is disabled. If this switch is on,

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
uplink frequency-selective
scheduling is enabled. This
switch is invalid if the
HighSpeedFlag parameter in
the Cell MO is set to
HIGH_SPEED(High speed
cell flag) or
ULTRA_HIGH_SPEED(Ultra
high speed cell flag), that is,
uplink frequency-selective
scheduling is disabled in high
speed and ultra high speed
mobility conditions. This
switch applies only to LTE
TDD cells.
SrSchDataAdptSw: Indicates
whether to enable data volume
adaption in SR scheduling.
Data volume adaption in SR
scheduling is enabled only
when this option is selected.
UlFssUserThdStSwitch:
UlFssUserThdStSwitch:
Indicates whether to enable the
optimization policy on the UE
number threshold for
frequency selective
scheduling. The optimization
policy is enabled only when
this option is selected.
GUI Value Range:
SpsSchSwitch(SpsSchSwitch),
SinrAdjustSwitch(SinrAdjustS
witch),
PreAllocationSwitch(PreAlloc
ationSwitch),
UlVmimoSwitch(UlVmimoS
witch),
TtiBundlingSwitch(TtiBundlin
gSwitch),
ImIcSwitch(ImIcSwitch),
SmartPreAllocationSwitch(Sm
artPreAllocationSwitch),
PuschDtxSwitch(PuschDtxSwi

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
tch),
UlIblerAdjustSwitch(UlIblerA
djustSwitch),
UlEnhancedFssSwitch(UlEnha
ncedFssSwitch),
UlEnhancedSrSchSwitch(UlE
nhancedSrSchSwitch),
SchedulerCtrlPowerSwitch(Sc
hedulerCtrlPowerSwitch),
UlIicsAlgoSwitch(UlIicsAlgo
Switch),
UlMinGbrSwitch(UlMinGbrS
witch),
UlMbrCtrlSwitch(UlMbrCtrlS
witch),
MbrUlSchSwitch(MbrUlSchS
witch),
UeAmbrUlSchSwitch(UeAmb
rUlSchSwitch),
UlEnhancedDopplerSwitch(Ul
EnhancedDopplerSwitch),
UlRaUserSchOptSw(UlRaUse
rSchOptSw),
UlLast2RetransSchOptSwitch(
UlLast2RetransSchOptSwitch)
,
UlInterfFssSwitch(UlInterfFss
Switch),
UlSmallRBSpectralEffOptSw(
UlSmallRBSpectralEfficiency
OptSw),
PuschUsePucchRbSwitch(Pus
chUsePucchRbSwitch),
PuschDtxSchOptSwitch(Pusch
DtxSchOptSwitch),
ULFSSAlgoSwitch(ULFSSAl
goSwitch),
PrachRbReuseSwitch(PrachRb
ReuseSwitch),
SrSchDataAdptSw(SrSchData
AdptSw),
UlFssUserThdStSwitch(UlFss
UserThdStSwitch)
Unit: None
Actual Value Range:

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
SpsSchSwitch,
SinrAdjustSwitch,
PreAllocationSwitch,
UlVmimoSwitch,
TtiBundlingSwitch,
ImIcSwitch,
SmartPreAllocationSwitch,
PuschDtxSwitch,
UlIblerAdjustSwitch,
UlEnhancedFssSwitch,
UlEnhancedSrSchSwitch,
SchedulerCtrlPowerSwitch,
UlIicsAlgoSwitch,
UlMinGbrSwitch,
UlMbrCtrlSwitch,
MbrUlSchSwitch,
UeAmbrUlSchSwitch,
UlEnhancedDopplerSwitch,
UlRaUserSchOptSw,
UlLast2RetransSchOptSwitch,
UlInterfFssSwitch,
UlSmallRBSpectralEffOptSw,
PuschUsePucchRbSwitch,
PuschDtxSchOptSwitch,
ULFSSAlgoSwitch,
PrachRbReuseSwitch,
SrSchDataAdptSw,
UlFssUserThdStSwitch
Default Value:
SpsSchSwitch:Off,
SinrAdjustSwitch:On,
PreAllocationSwitch:On,
UlVmimoSwitch:Off,
TtiBundlingSwitch:Off,
ImIcSwitch:Off,
SmartPreAllocationSwitch:Off
, PuschDtxSwitch:On,
UlIblerAdjustSwitch:Off,
UlEnhancedFssSwitch:On,
UlEnhancedSrSchSwitch:Off,
SchedulerCtrlPowerSwitch:Of
f, UlIicsAlgoSwitch:Off,
UlMinGbrSwitch:Off,
UlMbrCtrlSwitch:Off,
MbrUlSchSwitch:Off,
UeAmbrUlSchSwitch:Off,

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
UlEnhancedDopplerSwitch:Of
f, UlRaUserSchOptSw:Off,
UlLast2RetransSchOptSwitch:
Off, UlInterfFssSwitch:Off,
UlSmallRBSpectralEffOptSw:
Off,
PuschUsePucchRbSwitch:Off,
PuschDtxSchOptSwitch:Off,
ULFSSAlgoSwitch:On,
PrachRbReuseSwitch:Off,
SrSchDataAdptSw:On,
UlFssUserThdStSwitch:Off
CellDrxP
ara
CqiMask MOD
CELLDRX
PARA
LST
CELLDRX
PARA
LBFD-
002017
/
TDLBF
D-
002017
the cqi-Mask IE can be set.
The cqi-Mask IE is an optional
IE introduced in 3GPP Release
9. If the cqi-Mask IE is set to
Setup, the UE can send
CQI/PMI/RI/PTI reports on
PUCCH only in the
onDuration period of
(DRX). If the cqi-Mask IE is
not set, the UE can send
CQI/PMI/RI/PTI reports on
PUCCH in the active period of
DRX.
ON(On)
Unit: None
TimeAlig
nmentTi
mer
TimingAdvC
mdOptSwitch
MOD
TATIMER
LST
TATIMER
None None Meaning:
Indicates whether optimization
of the mechanism for
delivering the uplink time
alignment command takes
effect. If the optimization
takes effect, the number of
unnecessary uplink time
alignment commands

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
delivered to motionless or low-
mobility UEs can be reduced
to save air interface resources
and reduce power
consumption of UEs in DRX
mode. This ensures the uplink
time alignment performance if
the length of the uplink time
alignment timer is set to a
large value.
If this parameter is set to ON,
it is recommended that the
TimeAlignmentTimer
parameter be set to SF10240.
A smaller value of the
TimeAlignmentTimer
parameter, such as SF5120,
leads to a higher probability of
becoming out-of-
synchronization in the uplink
for UEs in DRX mode.
If this parameter is set to ON,
it is recommended that the
LongDrxCycle parameter be
smaller than or equal to
SF320. Otherwise, the uplink
time alignment performance of
UEs in DRX mode is affected.
ON(On)
Unit: None
Default Value: ON(On)
TimeAlig
nmentTi
mer
TimingMeas
Mode
MOD
TATIMER
LST
TATIMER
LBFD-
070101
Uplink
Timing
Based on
PUCCH
Meaning: Indicates the method
of measuring uplink timing
offsets. If this parameter is set
to INVALID, uplink timing
offsets are measured based on
the demodulation reference
signal (DMRS) for PUSCH or

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
sounding reference signal
(SRS). If this parameter is set
to ALLMEASMODE, uplink
timing offsets are measured
based on the DMRS for
PUSCH and SRS or based on
the DMRS for PUSCH and
channel quality indicator
(CQI) in PUCCH. In addition,
the value ON of the
parameter takes effect
regardless of the actual
parameter setting. That is, the
eNodeB always sends the
Timing Advance Command to
UEs. In this case, it is
TimeAlignmentTimer
parameter be set to SF10240.
The value ALLMEASMODE
applies only to LTE FDD
cells. The parameter value
INVALID takes effect in a cell
regardless of the actual
parameter setting in any of the
following scenarios: (1) The
cell is established on an
LBBPc. (2) The
UlCyclicPrefix parameter is
set to EXTENDED_CP. (3)
The HighSpeedFlag parameter
is set to HIGH_SPEED,
ULTRA_HIGH_SPEED, or
EXTRA_HIGH_SPEED. (4)
The TX/RX mode of the cell is
2T8R.
GUI Value Range:
INVALID(Invalid Timing
Measurement Mode),
ALLMEASMODE(All Timing
Measurement Mode)
Unit: None
Actual Value Range:

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
INVALID, ALLMEASMODE
Default Value:
INVALID(Invalid Timing
Measurement Mode)
RlcPdcpP
araGroup
DiscardTimer ADD
RLCPDCPP
ARAGROU
P
MOD
RLCPDCPP
ARAGROU
P
LST
RLCPDCPP
ARAGROU
P
LBFD-
002008
/
TDLBF
D-
002008
Radio
Bearer
Manage
ment
of the PDCP discard timer.
GUI Value Range:
DiscardTimer_50(50),
DiscardTimer_Infinity(infinity
)
Unit: ms
Actual Value Range:
DiscardTimer_50,
DiscardTimer_100,
DiscardTimer_150,
DiscardTimer_300,
DiscardTimer_500,
DiscardTimer_750,
DiscardTimer_1500,
DiscardTimer_Infinity
Default Value:
DiscardTimer_Infinity(infinity
)
CellDrxP
ara
LocalCellId LST
CELLDRX
PARA
MOD
CELLDRX
PARA
None None Meaning: Indicates the local
ID of the cell. It uniquely
identifies a cell within a BS.
Unit: None
Default Value: None

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
CellDrxP
ara
DrxPolicyMo
de
MOD
CELLDRX
PARA
LST
CELLDRX
PARA
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates the policy
for selecting a DRX parameter
group for a UE for which the
bearers have multiple QCIs. If
DEFAULT(Default), the DRX
parameter group with the
shortest long DRX cycle is
preferentially selected for the
UE. If the lengths of long
DRX cycle for multiple QCIs
are the same, the DRX
parameter group with the
highest-priority QCI is
selected for the UE. The QCI
priorities are defined in 3GPP
specifications. If this
parameter is set to
QCIPRIORITY(QCI priority),
the DRX parameter group with
the highest-priority QCI is
selected for the UE. If no DRX
parameter group is configured
for the highest-priority QCI,
the eNodeB does not configure
the UE.
GUI Value Range:
DEFAULT(Default),
QCIPRIORITY(QCI priority)
Unit: None
Actual Value Range:
DEFAULT, QCIPRIORITY
Default Value:
DEFAULT(Default)
CellDrxP
ara
DrxStartOffs
etOptSwitch
MOD
CELLDRX
PARA
LST
CELLDRX
PARA
LBFD-
002017
enable optimized random
distribution of DrxStartOffset
values for UEs that are
configured with only sounding
reference signal (SRS)
resources, or periodic channel

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
quality indicator (CQI), or
neither. If this parameter is set
to OFF, then DrxStartOffset
takes the value of SrsOffset,
CqiOffset, or 0 when a UE is
configured with only SRS
resources, or periodic CQI, or
neither, respectively. This
prevents DrxStartOffset values
from being randomly
distributed within the range of
0 to (LongDrxCycle - 1). If
this parameter is set to ON,
DrxStartOffset values can be
randomly distributed within
the range of 0 to
(LongDrxCycle - 1) for UEs
that are configured with only
SRS resources, or periodic
CQI, or neither. This
parameter applies only to LTE
FDD eNodeBs and is
recommended to be set to ON
when SRS resources are not
allocated for UEs or there is a
large number of UEs in the
cell.
ON(On)
Unit: None
DrxPara
Group
DrxParaGrou
pId
ADD
DRXPARA
GROUP
LST
DRXPARA
GROUP
MOD
DRXPARA
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates the ID of
the DRX parameter group.
Unit: None
Default Value: None

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
GROUP
RMV
DRXPARA
GROUP
CellStand
ardQci
LocalCellId LST
CELLSTA
NDARDQC
I
MOD
CELLSTA
NDARDQC
I
Unit: None
Default Value: None
CellStand
ardQci
Qci LST
CELLSTA
NDARDQC
I
MOD
CELLSTA
NDARDQC
I
LBFD-
002025
/
TDLBF
D-
002025
LOFD-
001015
02 /
TDLOF
D-
001015
02
Basic
Scheduli
ng
Dynamic
Scheduli
ng
Meaning: Indicates the QoS
class identifier (QCI) of an
evolved packet system (EPS)
bearer. Different QCIs indicate
different QoS requirements,
such as the packet delay
budget, packet error loss rate,
and resource type. For details,
see Table 6.1.7 in 3GPP TS
23.203.
GUI Value Range: QCI1(QCI
1), QCI2(QCI 2), QCI3(QCI
9)
Unit: None
Actual Value Range: QCI1,
QCI2, QCI3, QCI4, QCI5,
QCI6, QCI7, QCI8, QCI9
Default Value: None
CellStand
ardQci
DrxParaGrou
pId
MOD
CELLSTA
NDARDQC
LBFD-
002017
/
TDLBF
DRX Meaning: Indicates the ID of a

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
I
LST
CELLSTA
NDARDQC
I
D-
002017
Unit: None
Default Value: 0
CellStand
ardQci
QciPriorityFo
rDrx
MOD
CELLSTA
NDARDQC
I
LST
CELLSTA
NDARDQC
I
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates the QCI-
specific priority for selecting a
DRX parameter group.A larger
value of this parameter
indicates a lower priority. If
the bearers for a UE have
multiple QCIs and the
DrxPolicyMode parameter is
set to QCIPRIORITY(QCI
priority), the eNodeB selects
the UE based on the QCI-
specific priorities.
Unit: None
Default Value: 9
CellExte
ndedQci
ExtendedQci ADD
CELLEXT
ENDEDQC
I
LST
CELLEXT
ENDEDQC
I
MOD
CELLEXT
ENDEDQC
I
RMV
CELLEXT
ENDEDQC
LBFD-
002032
Extended
-QCI
Meaning: Indicates the
extended QoS Class Identifier
(QCI), which is required by
the operator for service
differentiation.
Unit: None
Default Value: None

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
I
CellExte
ndedQci
LocalCellId ADD
CELLEXT
ENDEDQC
I
LST
CELLEXT
ENDEDQC
I
MOD
CELLEXT
ENDEDQC
I
RMV
CELLEXT
ENDEDQC
I
Unit: None
Default Value: None
CellExte
ndedQci
DrxParaGrou
pId
ADD
CELLEXT
ENDEDQC
I
MOD
CELLEXT
ENDEDQC
I
LST
CELLEXT
ENDEDQC
I
LBFD-
002017
/
TDLBF
D-
002017
DRX Meaning: Indicates the ID of a
Unit: None
Default Value: 0
Cell LocalCellId ACT CELL
ADD CELL
ADD
CELLBAN
D
BLK CELL
Unit: None
Default Value: None

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
DEA CELL
DSP CELL
DSP
CELLPHY
TOPO
DSP
CELLULC
OMPCLUS
TER
DSP
LIOPTRUL
E
DSP
PRIBBPAD
JUST
LST CELL
LST
CELLBAN
D
MOD
CELL
RMV CELL
RMV
CELLBAN
D
RMV
CELLNRT
STR
CELLRFL
OOPBACK
STR
CELLSELF
TEST

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
STR
LRTWPRT
TST
STR
PRIBBPAD
JUST
UBL CELL
DSP
LRTWPRT
TST
DSP
PRIBBPRE
SINFO
Standard
Qci
Qci LST
STANDAR
DQCI
MOD
STANDAR
DQCI
LOFD-
001015
02 /
TDLOF
D-
001015
02
TDLBF
D-
002025
TDLOF
D-
001015
Dynamic
Scheduli
ng
Basic
Scheduli
ng
Enhanced
Scheduli
ng
Meaning: Indicates the QoS
Class Identifier (QCI) of an
EPS bearer. Different QCIs
represent different QoS
specifications such as the
packet delay budget, packet
error loss rate, and resource
type (whether the service is a
GBR service or not). For
details, see Table 6.1.7 in
3GPP TS 23.203.
GUI Value Range: QCI1(QCI
9)
Unit: None
Actual Value Range: QCI1,
QCI2, QCI3, QCI4, QCI5,
QCI6, QCI7, QCI8, QCI9
Default Value: None
CellAcce
ss
ReptSyncAvo
idInd
MOD
CELLACC
LOFD-
001105
/
Dynamic
DRX
Meaning: Indicates whether all
synchronization procedures
repeatedly initiated by a UE

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
ESS
LST
CELLACC
ESS
TDLOF
D-
001105
having compatibility problems
can trigger the RRC
connection reconfiguration
procedure. If this parameter is
set to CFG, all synchronization
procedures repeatedly initiated
by a UE having compatibility
problems do not trigger the
RRC connection
reconfiguration procedure. If
NOT_CFG, all
synchronization procedures
repeatedly initiated by a UE
trigger the RRC connection
reconfiguration procedure.
GUI Value Range:
NOT_CFG(Not configure),
CFG(Configure)
Unit: None
Actual Value Range:
NOT_CFG, CFG
Default Value: NOT_CFG(Not
configure)
CellAcce
ss
ReptSyncAvo
idTime
MOD
CELLACC
ESS
LST
CELLACC
ESS
LOFD-
001105
/
TDLOF
D-
001105
Dynamic
DRX
Meaning: Indicates the period
during which synchronization
procedures repeatedly initiated
by a UE having compatibility
problems do not trigger the
RRC connection
Multiple synchronization
procedures initiated by a UE
within the period specified by
this parameter trigger only one
RRC connection

MO Parameter
ID
MML
Command
Feature
ID
Feature
Name
Description
Unit: ms
Default Value: 100
CellAlgo
Switch
LocalCellId DSP
CELLULC
AMCCLUS
TER
LST
CELLALG
OSWITCH
MOD
CELLALG
OSWITCH
Unit: None
Default Value: None
12 Counters
Table 12-1 Counters
Counter
ID
Counter Name Counter
Description
Feature
ID
Feature
Name
15267266
58
L.RRC.ConnReq.Att Number of RRC
connection setup
requests
(retransmission
excluded)
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent
15267268
85
L.Paging.UU.Att Number of UEs
contained in
paging messages
Multi-
mode:
Paging
Paging

Counter
ID
Description
Feature
ID
Feature
Name
transmitted over
the Uu interface
in a cell
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002011
TDLBF
D-
002011
15267269
96
L.HHO.IntraeNB.IntraFreq.ExecAttOut Number of intra-
eNodeB intra-
frequency
outgoing
handovers
executions in a
cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002018
01
TDLBF
D-
002018
01
Coverage
Based
Intra-
frequency
Handover
Coverage
Based
Intra-
frequency
Handover
15267269
99
L.HHO.IntraeNB.InterFreq.ExecAttOut Number of intra-
eNodeB inter-
frequency
outgoing
handovers
executions in a
cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
Coverage
Based
Inter-
frequency
Handover
Coverage
Based
Inter-
frequency
Handover

Counter
ID
Description
Feature
ID
Feature
Name
002018
02
TDLBF
D-
002018
02
15267270
02
L.HHO.IntereNB.IntraFreq.ExecAttOut Number of inter-
eNodeB intra-
frequency
outgoing
handovers
executions in a
cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002018
01
TDLBF
D-
002018
01
Coverage
Based
Intra-
frequency
Handover
Coverage
Based
Intra-
frequency
Handover
15267270
05
L.HHO.IntereNB.InterFreq.ExecAttOut Number of inter-
eNodeB inter-
frequency
outgoing
handovers
executions in a
cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002018
02
TDLBF
D-
002018
02
Coverage
Based
Inter-
frequency
Handover
Coverage
Based
Inter-
frequency
Handover

Counter
ID
Description
Feature
ID
Feature
Name
15267272
85
L.HHO.DRX.IntraeNB.IntraFreq.ExecA
ttOut
Number of intra-
eNodeB intra-
frequency
outgoing
handovers
executions in the
DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
LBFD-
002018
01
TDLBF
D-
002017
TDLBF
D-
002018
01
DRX
Coverage
Based
Intra-
frequency
Handover
DRX
Coverage
Based
Intra-
frequency
Handover
15267272
86
L.HHO.DRX.IntraeNB.IntraFreq.ExecS
uccOut
Number of
successful intra-
eNodeB intra-
frequency
outgoing
handovers in the
DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
LBFD-
002018
01
TDLBF
D-
DRX
Coverage
Based
Intra-
frequency
Handover
DRX
Coverage
Based
Intra-
frequency
Handover

Counter
ID
Description
Feature
ID
Feature
Name
002017
TDLBF
D-
002018
01
15267272
87
L.HHO.DRX.IntraeNB.InterFreq.ExecA
ttOut
Number of intra-
eNodeB inter-
frequency
outgoing
handovers
executions in the
DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
LBFD-
002018
02
TDLBF
D-
002017
TDLBF
D-
002018
02
DRX
Coverage
Based
Inter-
frequency
Handover
DRX
Coverage
Based
Inter-
frequency
Handover
15267272
88
L.HHO.DRX.IntraeNB.InterFreq.ExecS
uccOut
Number of
successful intra-
eNodeB inter-
frequency
outgoing
handovers in the
DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
DRX
Coverage
Based
Inter-
frequency
Handover
DRX
Coverage
Based
Inter-
frequency

Counter
ID
Description
Feature
ID
Feature
Name
LBFD-
002018
02
TDLBF
D-
002017
TDLBF
D-
002018
02
Handover
15267272
89
L.HHO.DRX.IntereNB.IntraFreq.ExecA
ttOut
Number of inter-
eNodeB intra-
frequency
outgoing
handovers
executions in the
DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
LBFD-
002018
02
TDLBF
D-
002018
02
DRX
Coverage
Based
Inter-
frequency
Handover
Coverage
Based
Inter-
frequency
Handover
15267272
90
L.HHO.DRX.IntereNB.IntraFreq.ExecS
uccOut
Number of
successful inter-
eNodeB intra-
frequency
outgoing
handovers in the
DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
Coverage
Based
Intra-
frequency
Handover
Coverage
Based
Inter-
frequency
Handover

Counter
ID
Description
Feature
ID
Feature
Name
002018
01
LBFD-
002018
02
LBFD-
002017
TDLBF
D-
002018
01
TDLBF
D-
002018
02
DRX
Coverage
Based
Intra-
frequency
Handover
Coverage
Based
Inter-
frequency
Handover
15267272
91
L.HHO.DRX.IntereNB.InterFreq.ExecA
ttOut
Number of inter-
eNodeB inter-
frequency
outgoing
handovers
executions in the
DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002018
01
LBFD-
002018
02
LBFD-
002017
TDLBF
D-
002018
01
Coverage
Based
Intra-
frequency
Handover
Coverage
Based
Inter-
frequency
Handover
DRX
Coverage
Based
Intra-
frequency
Handover
Coverage
Based
Inter-
frequency
Handover

Counter
ID
Description
Feature
ID
Feature
Name
TDLBF
D-
002018
02
15267272
92
L.HHO.DRX.IntereNB.InterFreq.ExecS
uccOut
Number of
successful inter-
eNodeB inter-
frequency
outgoing
handovers in the
DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
LBFD-
002018
02
TDLBF
D-
002017
TDLBF
D-
002018
01
TDLBF
D-
002018
02
DRX
Coverage
Based
Inter-
frequency
Handover
DRX
Coverage
Based
Intra-
frequency
Handover
Coverage
Based
Inter-
frequency
Handover
15267275
44
L.E-RAB.SuccEst Total number of
successful E-
RAB setups
initiated by UEs
in a cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
Radio
Bearer
Managem
ent
Radio
Bearer
Managem
ent

Counter
ID
Description
Feature
ID
Feature
Name
LBFD-
002008
TDLBF
D-
002008
15267275
45
L.E-RAB.AttEst Total number of
E-RAB setup
attempts initiated
by UEs in a cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002008
TDLBF
D-
002008
Radio
Bearer
Managem
ent
Radio
Bearer
Managem
ent
15267275
46
L.E-RAB.AbnormRel Total number of
abnormal
releases of
activated E-
RABs initiated
by the eNodeB
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002008
TDLBF
D-
002008
Radio
Bearer
Managem
ent
Radio
Bearer
Managem
ent
15267275
47
L.E-RAB.NormRel Total number of
normal E-RAB
releases initiated
by the eNodeB
in a cell
Multi-
mode:
None
GSM:
Radio
Bearer
Managem
ent

Counter
ID
Description
Feature
ID
Feature
Name
None
UMTS:
None
LTE:
LBFD-
002008
TDLBF
D-
002008
Radio
Bearer
Managem
ent
15267282
17
L.RRC.ConnReq.Att.Emc Number of RRC
connection setup
attempts with a
cause value of
emergency
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent
15267282
18
L.RRC.ConnReq.Att.HighPri Number of RRC
connection setup
attempts with a
cause value of
highPriorityAcce
ss
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent

Counter
ID
Description
Feature
ID
Feature
Name
15267282
19
L.RRC.ConnReq.Att.Mt Number of RRC
connection setup
attempts with a
cause value of
mt-Access
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent
15267282
20
L.RRC.ConnReq.Att.MoSig Number of RRC
connection setup
attempts with a
cause value of
mo-Signalling
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent
15267282
21
L.RRC.ConnReq.Att.MoData Number of RRC
connection setup
attempts with a
cause value of
mo-Data
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent

Counter
ID
Description
Feature
ID
Feature
Name
002007
TDLBF
D-
002007
15267282
22
L.RRC.ConnReq.Succ.Emc Number of RRC
Connection
Setup Complete
messages with a
cause value of
emergency
received from
UEs in a cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent
15267282
23
L.RRC.ConnReq.Succ.HighPri Number of RRC
Connection
Setup Complete
messages with a
cause value of
highPriorityAcce
ss received from
UEs in a cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent
15267282
24
L.RRC.ConnReq.Succ.Mt Number of RRC
Connection
Setup Complete
messages with a
cause value of
mt-Access
Multi-
mode:
None
GSM:
RRC
Connectio
n
Managem
ent

Counter
ID
Description
Feature
ID
Feature
Name
received from
UEs in a cell
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
15267282
26
L.RRC.ConnReq.Succ.MoData Number of RRC
Connection
Setup Complete
messages with a
cause value of
mo-Data
received from
UEs in a cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent
15267283
57
L.RRC.ConnReq.Att.DelayTol Number of RRC
connection setup
attempts with a
cause value of
delayTolerantAc
cess-v1020
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent

Counter
ID
Description
Feature
ID
Feature
Name
15267283
58
L.RRC.ConnReq.Succ.DelayTol Number of
successful RRC
connection
setups with a
cause value of
delayTolerantAc
cess-v1020
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent
15267284
36
L.E-RAB.Release.Unsyn Number of
released E-RABs
of UEs in the
uplink out-of-
synchronization
state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002008
TDLBF
D-
002008
Radio
Bearer
Managem
ent
Radio
Bearer
Managem
ent
15267284
37
L.E-RAB.Num.Syn2Unsyn Total number of
E-RABs in UE
contexts when
the UEs switch
from the uplink
synchronized
state to the
uplink out-of-
synchronization
state in a cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
Radio
Bearer
Managem
ent
Radio
Bearer
Managem
ent

Counter
ID
Description
Feature
ID
Feature
Name
002008
TDLBF
D-
002008
15267284
38
L.RRC.StateTrans.Syn2Unsyn Number of times
a UE switch
from the Uplink-
Synchronized
state to the
uplink out-of-
synchronization
state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent
15267284
39
L.RRC.StateTrans.Unsyn2Syn Number of times
a UE switch
from the out-of-
synchronization
state to the
uplink-
synchronized
state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
TDLBF
D-
002007
RRC
Connectio
n
Managem
ent
RRC
Connectio
n
Managem
ent
15267284
40
L.UECNTX.Release.HighSpeed Number of UE
context releases
due to high
mobility of UEs
Multi-
mode:
None
GSM:
Radio
Bearer
Managem
ent
Radio

Counter
ID
Description
Feature
ID
Feature
Name
None
UMTS:
None
LTE:
LBFD-
002008
TDLBF
D-
002008
Bearer
Managem
ent
15267284
65
L.Signal.Num.Uu Number of
signaling
messages over
the Uu interface
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
TDLBF
D-
002017
DRX
DRX
15267284
66
L.Signal.Num.DRX.Reconfig Number of DRX
reconfiguration
messages
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
TDLBF
D-
DRX
DRX
Dynamic
DRX
Dynamic
DRX

Counter
ID
Description
Feature
ID
Feature
Name
002017
LOFD-
001105
TDLOF
D-
001105
15267285
46
L.Traffic.User.Cdrx.Avg Average number
of UEs on which
DRX takes effect
in a cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
LBFD-
002017
TDLOF
D-
001105
Dynamic
DRX
DRX
Dynamic
DRX
15267285
47
L.Cdrx.Enter.Num Number of times
a UE in
connected mode
enters DRX in
RRC_CONECT
ED mode
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
TDLBF
D-
002017
DRX
DRX
Dynamic
DRX
Dynamic
DRX

Counter
ID
Description
Feature
ID
Feature
Name
LOFD-
001105
TDLOF
D-
001105
15267285
48
L.Cdrx.Exit.Num Number of times
a UE in
connected mode
exits DRX in
RRC_CONECT
ED mode
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
TDLBF
D-
002017
LOFD-
001105
TDLOF
D-
001105
DRX
DRX
Dynamic
DRX
Dynamic
DRX
15267285
49
L.Cdrx.Active.TtiNum Total number of
TTIs for DRX
UEs in active
state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
Dynamic
DRX
Dynamic
DRX
DRX
DRX

Counter
ID
Description
Feature
ID
Feature
Name
001105
LBFD-
002017
TDLBF
D-
002017
15267285
50
L.Cdrx.Sleep.TtiNum Total number of
TTIs for DRX
UEs in sleep
state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
LBFD-
002017
TDLBF
D-
002017
Dynamic
DRX
Dynamic
DRX
DRX
DRX
15267285
51
L.Voip.Cdrx.Active.TtiNum Total number of
TTIs for DRX
UEs in active
state and
performing VoIP
services
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
Dynamic
DRX
Dynamic
DRX
DRX
DRX

Counter
ID
Description
Feature
ID
Feature
Name
TDLOF
D-
001105
LBFD-
002017
TDLBF
D-
002017
15267285
52
L.Voip.Cdrx.Sleep.TtiNum Total number of
TTIs for DRX
UEs in dormant
state and
performing VoIP
services
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
LBFD-
002017
TDLBF
D-
002017
Dynamic
DRX
Dynamic
DRX
DRX
DRX
15267285
54
L.HHO.IntraFreq.NoData.ExecAttOut Number of intra-
frequency
handover
execution
attempts
triggered for UEs
that do not
transmit or
receive data
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
Coverage
Based
Intra-
frequency
Handover
Coverage
Based
Intra-
frequency
Handover

Counter
ID
Description
Feature
ID
Feature
Name
002018
01
TDLBF
D-
002018
01
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX
15267285
55
L.HHO.IntraFreq.NoData.ExecSuccOut Number of
successful intra-
frequency
handover
executions
triggered for UEs
that do not
transmit or
receive data
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002018
01
TDLBF
D-
002018
01
LOFD-
001105
TDLOF
D-
001105
Coverage
Based
Intra-
frequency
Handover
Coverage
Based
Intra-
frequency
Handover
Dynamic
DRX
Dynamic
DRX
15267285
57
L.HHO.InterFreq.NoData.ExecAttOut Number of inter-
frequency
handover
execution
attempts
triggered for UEs
Multi-
mode:
None
GSM:
Coverage
Based
Inter-
frequency
Handover

Counter
ID
Description
Feature
ID
Feature
Name
that do not
transmit or
receive data
None
UMTS:
None
LTE:
LBFD-
002018
02
TDLBF
D-
002018
02
LOFD-
001105
TDLOF
D-
001105
Coverage
Based
Inter-
frequency
Handover
Dynamic
DRX
Dynamic
DRX
15267285
58
L.HHO.InterFreq.NoData.ExecSuccOut Number of
successful inter-
frequency
handover
executions
triggered for UEs
that do not
transmit or
receive data
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002018
02
TDLBF
D-
002018
02
LOFD-
001105
TDLOF
D-
Coverage
Based
Inter-
frequency
Handover
Coverage
Based
Inter-
frequency
Handover
Dynamic
DRX
Dynamic
DRX

Counter
ID
Description
Feature
ID
Feature
Name
001105
15267285
60
L.IRATHO.E2W.NoData.ExecAttOut Number of inter-
RAT handover
executions from
E-UTRAN to
WCDMA
network
triggered for UEs
that do not
transmit or
receive data
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001019
LOFD-
001022
LOFD-
001033
TDLOF
D-
001019
TDLOF
D-
001022
TDLOF
D-
001033
LOFD-
001105
TDLOF
D-
001105
PS Inter-
RAT
Mobility
between
E-
UTRAN
and
UTRAN
SRVCC
to
UTRAN
CS
Fallback
to
UTRAN
PS Inter-
RAT
Mobility
between
E-
UTRAN
and
UTRAN
SRVCC
to
UTRAN
CS
Fallback
to
UTRAN
Dynamic
DRX
Dynamic
DRX
15267285
61
L.IRATHO.E2W.NoData.ExecSuccOut Number of
successful inter-
RAT handovers
from E-UTRAN
Multi-
mode:
None
PS Inter-
RAT
Mobility
between

Counter
ID
Description
Feature
ID
Feature
Name
to WCDMA
network
triggered for UEs
that do not
transmit or
receive data
GSM:
None
UMTS:
None
LTE:
LOFD-
001019
LOFD-
001022
LOFD-
001033
TDLOF
D-
001019
TDLOF
D-
001022
TDLOF
D-
001033
LOFD-
001105
TDLOF
D-
001105
E-
UTRAN
and
UTRAN
SRVCC
to
UTRAN
CS
Fallback
to
UTRAN
PS Inter-
RAT
Mobility
between
E-
UTRAN
and
UTRAN
SRVCC
to
UTRAN
CS
Fallback
to
UTRAN
Dynamic
DRX
Dynamic
DRX
15267295
84
L.HHO.InterFddTdd.NoData.ExecAttO
ut
Number of inter-
duplex-mode
handover
execution
attempts
triggered for UEs
that do not
transmit or
receive data
Multi-
mode:
None
GSM:
None
UMTS:
Coverage
Based
Inter-
frequency
Handover
Dynamic
DRX

Counter
ID
Description
Feature
ID
Feature
Name
None
LTE:
LBFD-
002018
02
LOFD-
001105
TDLBF
D-
002018
02
TDLOF
D-
001105
Coverage
Based
Inter-
frequency
Handover
Dynamic
DRX
15267295
85
L.HHO.InterFddTdd.NoData.ExecSucc
Out
Number of
successful inter-
duplex-mode
handover
executions
triggered for UEs
that do not
transmit or
receive data
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002018
02
LOFD-
001105
TDLBF
D-
002018
02
TDLOF
D-
001105
Coverage
Based
Inter-
frequency
Handover
Dynamic
DRX
Coverage
Based
Inter-
frequency
Handover
Dynamic
DRX
15267295
86
L.HHO.DRX.IntraeNB.InterFddTdd.Ex
ecAttOut
Number of intra-
eNodeB inter-
Multi-
mode:
DRX

Counter
ID
Description
Feature
ID
Feature
Name
duplex-mode
handover
executions
triggered for UEs
in the DRX state
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
LBFD-
002018
02
TDLBF
D-
002017
TDLBF
D-
002018
02
Coverage
Based
Inter-
frequency
Handover
DRX
Coverage
Based
Inter-
frequency
Handover
15267295
87
L.HHO.DRX.IntraeNB.InterFddTdd.Ex
ecSuccOut
Number of
successful intra-
eNodeB inter-
duplex-mode
outgoing
handovers
triggered for UEs
in the DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
LBFD-
002018
02
TDLBF
D-
002017
DRX
Coverage
Based
Inter-
frequency
Handover
DRX
Coverage
Based
Inter-
frequency
Handover

Counter
ID
Description
Feature
ID
Feature
Name
TDLBF
D-
002018
02
15267295
88
L.HHO.DRX.IntereNB.InterFddTdd.Ex
ecAttOut
Number of inter-
eNodeB inter-
duplex-mode
handover
executions
triggered for UEs
in the DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
LBFD-
002018
02
TDLBF
D-
002017
TDLBF
D-
002018
02
DRX
Coverage
Based
Inter-
frequency
Handover
DRX
Coverage
Based
Inter-
frequency
Handover
15267295
89
L.HHO.DRX.IntereNB.InterFddTdd.Ex
ecSuccOut
Number of
successful inter-
eNodeB inter-
duplex-mode
outgoing
handovers
triggered for UEs
in the DRX state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002017
LBFD-
002018
DRX
Coverage
Based
Inter-
frequency
Handover
DRX
Coverage
Based
Inter-
frequency
Handover

Counter
ID
Description
Feature
ID
Feature
Name
02
TDLBF
D-
002017
TDLBF
D-
002018
02
15267296
56
L.RRC.StateTrans.Unsyn2Syn.Succ Number of
successfully
recovered RRC
connections
when UEs switch
from the uplink
out-of-
synchronization
state to the
uplink-
synchronized
state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX
15267296
57
L.E-RAB.StateTrans.Unsyn2Syn.Att Number of E-
RAB recovery
attempts when
UEs switch from
the uplink out-
of-
synchronization
state to the
uplink-
synchronized
state
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX
15267296 L.E-RAB.StateTrans.Unsyn2Syn.Succ Number of Multi- Dynamic

Counter
ID
Description
Feature
ID
Feature
Name
58 successfully
recovered E-
RABs when UEs
switch from the
uplink out-of-
synchronization
state to the
uplink-
synchronized
state
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
DRX
Dynamic
DRX
15267296
59
L.Signal.Num.S1 Number of S1
signaling
messages
received or sent
by a cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX
15267296
60
L.Signal.Num.X2 Number of X2
signaling
messages
received or sent
by a cell
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
Dynamic
DRX
Dynamic
DRX

Counter
ID
Description
Feature
ID
Feature
Name
001105
TDLOF
D-
001105
15267301
04
L.User.UL.Unsync.Dur.Index0 Number of times
the duration of a
UE in the out-of-
synchronization
state in a cell
ranges within
index 0
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX
15267301
05
the duration of a
UE in the out-of-
synchronization
state in a cell
ranges within
index 1
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX
15267301
06
the duration of a
UE in the out-of-
synchronization
state in a cell
ranges within
Multi-
mode:
None
GSM:
Dynamic
DRX
Dynamic
DRX

Counter
ID
Description
Feature
ID
Feature
Name
index 2 None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
15267301
07
the duration of a
UE in the out-of-
synchronization
state in a cell
ranges within
index 3
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX
15267301
08
the duration of a
UE in the out-of-
synchronization
state in a cell
ranges within
index 4
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX

Counter
ID
Description
Feature
ID
Feature
Name
15267301
09
the duration of a
UE in the out-of-
synchronization
state in a cell
ranges within
index 5
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX
15267301
10
the duration of a
UE in the out-of-
synchronization
state in a cell
ranges within
index 6
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX
15267301
11
the duration of a
UE in the out-of-
synchronization
state in a cell
ranges within
index 7
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
Dynamic
DRX
Dynamic
DRX

Counter
ID
Description
Feature
ID
Feature
Name
001105
TDLOF
D-
001105
15267301
12
the duration of a
UE in the out-of-
synchronization
state in a cell
ranges within
index 8
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LOFD-
001105
TDLOF
D-
001105
Dynamic
DRX
Dynamic
DRX
15267301
24
L.Traffic.PktInterval.Num.Index0 Number of times
the packet
transmission
interval for a UE
in a cell ranges
within index 0
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
LOFD-
001105
TDLOF
D-
001105
RRC
Connectio
n
Managem
ent
Dynamic
DRX
Dynamic
DRX
15267301
25
the packet
transmission
Multi-
mode:
RRC
Connectio
n

Counter
ID
Description
Feature
ID
Feature
Name
interval for a UE
in a cell ranges
within index 1
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
LOFD-
001105
TDLOF
D-
001105
Managem
ent
Dynamic
DRX
Dynamic
DRX
15267301
26
the packet
transmission
interval for a UE
in a cell ranges
within index 2
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
LOFD-
001105
TDLOF
D-
001105
RRC
Connectio
n
Managem
ent
Dynamic
DRX
Dynamic
DRX
15267301
27
the packet
transmission
interval for a UE
in a cell ranges
within index 3
Multi-
mode:
None
GSM:
None
UMTS:
RRC
Connectio
n
Managem
ent
Dynamic

Counter
ID
Description
Feature
ID
Feature
Name
None
LTE:
LBFD-
002007
LOFD-
001105
TDLOF
D-
001105
DRX
Dynamic
DRX
15267301
28
the packet
transmission
interval for a UE
in a cell ranges
within index 4
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
LOFD-
001105
TDLOF
D-
001105
RRC
Connectio
n
Managem
ent
Dynamic
DRX
Dynamic
DRX
15267301
29
the packet
transmission
interval for a UE
in a cell ranges
within index 5
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
RRC
Connectio
n
Managem
ent
Dynamic
DRX
Dynamic
DRX

Counter
ID
Description
Feature
ID
Feature
Name
LOFD-
001105
TDLOF
D-
001105
15267301
30
the packet
transmission
interval for a UE
in a cell ranges
within index 6
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
LOFD-
001105
TDLOF
D-
001105
RRC
Connectio
n
Managem
ent
Dynamic
DRX
Dynamic
DRX
15267301
31
the packet
transmission
interval for a UE
in a cell ranges
within index 7
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
LOFD-
001105
TDLOF
D-
001105
RRC
Connectio
n
Managem
ent
Dynamic
DRX
Dynamic
DRX

Counter
ID
Description
Feature
ID
Feature
Name
15267301
32
the packet
transmission
interval for a UE
in a cell ranges
within index 8
Multi-
mode:
None
GSM:
None
UMTS:
None
LTE:
LBFD-
002007
LOFD-
001105
TDLOF
D-
001105
RRC
Connectio
n
Managem
ent
Dynamic
DRX
Dynamic
DRX
13 Glossary
For the acronyms, abbreviations, terms, and definitions, see Glossary.
14 Reference Documents
1. 3GPP TS 36.211: "Physical channels and modulation"
2. 3GPP TS 36.300: "Overall description"
3. 3GPP TS 36.321: "Medium Access Control (MAC) protocol specification"
4. Idle Mode Management Feature Parameter Description
5. Intra-RAT Mobility Management in Connected Mode Feature Parameter Description
6. Scheduling Feature Parameter Description
7. Terminal Awareness Differentiation Feature Parameter Description

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