1. (1) Intra Frequency Measurements
(2) Inter Frequency Measurements
CELL_DCH
(3) Inter RAT Measurements
UE
(4) Traffic Volume Measurements
RNC
(5) Quality Measurements
(6) UE Internal Measurements
(7) UE Positioning Measurements
RRC
Activated measurements
measurement objects,
measurement quantity,
filtering coefficient,
active events,
triggering criteria
Measurement Control or SIB 11|12
( setup/modify: measurement id,measurement configuration,
release: measurement id)
Fig. 27 Measurement types and configuration options. (TM3201 Radio Resool Protocol RRC, 57)
Measurement Types and Configuration

2. Measurements and Reporting Trigger
frequency measurements,
quality measurements,
UE internal measurments,
UE positioning measurments
WCDMA
RNC
traffic volume measurements
RLC/MAC
periodical measurements
RRC
Measurments filtering
reporting
criterion for active
event fullfilled ?
Yes
Measurement Report
(filtered measurements, triggered event)
Fig. 28 Event driven reporting. (TM3201 Radio Resource Control Protocol RRC, 59)
UE

3. Measurement Types and Measurement Quantities
1) Intra Frequency Measurements
1)
2)
3)
DL Ec/No
DL Pathloss
DL RSCP (after despreading)
2) Inter Frequency Measurements
1)
2)
3)
DL Ec/No
DL Pathloss
DL RSCP (after despreading)
3) Inter RAT Measurements
1)
GSM carrier RSSI
4) Traffic Volume Measurements
1)
2)
3)
Buffer occupancy
Average buffer occupancy
Variance of buffer occupancy
5) Quality Measurements
1)
DL block error rate (BLER) per TrCH
6) UE Internal Measurements
1)
2)
3)
UE Tx power
UE received signal power (RSSI)
UE Rx-Tx time difference
7) UE Positioning Measurements
1)
2)
3)
SFN-SFN observed time difference
Rx-Tx time difference (optional)
GPS timing of cell frames (optional)
Fig. 29 Measurement types and relevant measurement quantities. (TM3201 Radio Resource Control Protocol RRC, 61)

4. Intra Frequency Reporting Events - Overview
Event ID
Event Description
Notes
1A
A P-CPICH enters the reporting range.
add new radio link
1B
A P-CPICH leaves the reporting range.
drop weak radio link
1C
A non-active P-CPICH becomes better
than an active P-CPICH.
replace old RL
by new RL
1D
Change of the best cell.
1E
A P-CPICH becomes better than an
absolute threshold.
1F
A P-CPICH becomes worse than an
absolute threshold.
Fig. 30 Overview about intra frequency reporting events. (TM3201 Radio Resource Control Protocol RRC, 63)

5. 1A trigger
(not for pathloss)
leaving trigger
(not for pathloss)
 NA

Log M New + CIONew ≥ W ⋅10 ⋅ Log ∑ M i  + (1 − W ) ⋅10 ⋅ Log M Best − ( R1a − H1a / 2)


 i =1

Log M New + CIONew
 NA

< W ⋅10 ⋅ Log ∑ M i  + (1 − W ) ⋅10 ⋅ Log M Best − ( R1a + H1a / 2)


 i =1

RSCP or
Ec/No
W=0
AS-cell 1
AS-cell 2
R1a
CIO3
Fig. 31 Trigger and leaving trigger criteria for reporting event 1A. (TM3201 Radio Resource Control Protocol RRC, 65)
Intra Frequency Reporting Event 1A
H1a/2
cell 3
time to trigger
trigger 1A report
add cell to Triggered_1A_Event
time to trigger
remove cell from
Triggered_1A_Event
trigger 1A report
time
add cell to Triggered_1A_Event

6. 1B trigger
(not for pathloss)
leaving trigger
(not for pathloss)
Log M Old + CIOOld
 NA

≤ W ⋅10 ⋅ Log ∑ M i  + (1 − W ) ⋅10 ⋅ Log M Best − ( R1b + H1b / 2)


 i =1

Log M Old + CIOOld
 NA

> W ⋅10 ⋅ Log ∑ M i  + (1 − W ) ⋅10 ⋅ Log M Best − ( R1b − H1b / 2)


 i =1

RSCP or
Ec/No
W=0
AS-cell 1
AS-cell 3
AS-cell 2
R1b
CIO3
Fig. 32 Trigger and leaving trigger criteria for reporting event 1B. (TM3201 Radio Resource Control Protocol RRC, 65)
Intra Frequency Reporting Event 1B
H1b/2
time to trigger
trigger 1B event report
add cell to Triggered_1B_Event
time to trigger
remove cell from
Triggered_1B_Event
trigger 1B report time
add cell to Triggered_1B_Event

7. InAS is cell in active set with lowest measurement.
10 ⋅ Log M New + CIONew ≥ 10 ⋅ Log M InAS + CIOInAS + H1c / 2
1C trigger
(not for pathloss)
leaving trigger
(not for pathloss)
10 ⋅ Log M New + CIONew < 10 ⋅ Log M InAS + CIOInAS − H1c / 2
RSCP or
Ec/No
AS-cell 1
CIO3
AS-cell 2
CIO2
non AS
cell 3
H1c/2
CIO1
H1c/2
time to trigger
trigger 1C event report
add cell to Triggered_1C_Event
time to trigger
remove cell from
Triggered_1C_Event
trigger 1C report time
add cell to Triggered_1C_Event
Fig. 33 Trigger and leaving trigger criteria for reporting event 1C. (TM3201 Radio Resource Control Protocol RRC, 67)
Intra Frequency Reporting Event 1C

8. cell 3 cell 1
UE
RNC
Node B
cell 2
active set
cell 1
meas.
running
Measurement Control
RRC
(setup: measurement ID, intra-frequency cell info list {cell 2, cell 3}, intra-freq. measurement quantity =
CPICH Ec/No intra-freq. measurement reporting event list {1A, 1B, 1C + parameters} )
event 1A
for cell 2
RRC
Measurement Report
1) soft HO
decision
(measured result {cell2, observed SFN time difference, scrambling code, CPICH-Ec/No},
event results {1A – scrambling code of associated cell 2} )
RL Addition Request
NBAP
( Node B Communic. Context ID, RL-ID,
Cell ID=2, DL code information, DL power
information) )
softer HO activated
NBAP
2) soft HO
prep.
RL Addition Response
( RNC Communic. Context ID, RL-ID,
received total wideband power )
Active Set Update
3) soft HO
exec.
RRC
( activation time = now, radio link addition info {cell ID = 2, DL minimum spreading factor,code number} )
RRC
Active Set Update Complete
()
active set
cell 1,2
Measurement Control
(modify: measurement ID, add intra frequency cell (neighbors of cell 2), ... )
RRC
Fig. 34 Soft handover scenario 1(3). (TM3201 Radio Resource Control Protocol RRC, 69)

9. cell 3 cell 1
UE
RNC
Node B
cell 2
active set
RRC
event 1C
cell 3 better than cell 1
Measurement Report
soft HO
decision
(add 3,
RL Addition Request
NBAP delete 1)
( Node B Communic. Context ID, RL-ID,
Cell ID=3, DL info... )
(measured result {cell3,...} {cell 1,...}, event results {1C – scrambling code of cell 3} )
NBAP
RL Addition Response
( RNC Communic. Context ID, RL-ID,
received total wideband power )
Active Set Update
RRC
( activation time = now, radio link addition info {cell ID = 3, DL minimum spreading factor,code number} ,
radio link deletion info {RL-ID of cell 1} )
RRC
Active Set Update Complete
()
active set
cell 2,3
Measurement Control
(modify: measurement ID, add intra frequency cell (neighbors of cell 3), delete neighbor cell list
for cell 1,... )
RRC
RL Deletion Request
NBAP
( Node B Communic. Context ID, RL-ID,
Cell ID=1, DL info... )
NBAP
RL Deletion Response
( RNC Communic. Context ID, RL-ID)
Fig. 35 Soft handover scenario 2(3). (TM3201 Radio Resource Control Protocol RRC, 70)
cell 1,2

10. cell 3 cell 1
UE
Node B
cell 2
RNC
active set
cell 3,2
RRC
event 1B
cell 2 leaves reporting range
Measurement Report
soft HO
decision
(add 3,
delete 1)
(measured result {cell3,...} {cell 2,...}, event results {1B – scrambling code of cell 2} )
Active Set Update
( activation time = now, radio link deletion info {RL-ID of cell 2} )
RRC
Active Set Update Complete
()
active set
cell 3
Measurement Control
(modify: measurement ID, add intra frequency cell (neighbors of cell 2), delete neighbor cell list
for cell 2,... )
RRC
RL Deletion Request
NBAP
( Node B Communic. Context ID, RL-ID,
Cell ID=2, DL info... )
NBAP
RL Deletion Response
( RNC Communic. Context ID, RL-ID)
Fig. 36 Soft handover scenario 3(3). (TM3201 Radio Resource Control Protocol RRC, 71)

11. Intra Frequency Reporting Event 1D
10 ⋅ Log M NotBest + CIONotBest ≥ 10 ⋅ Log M Best + CIOBest + H1d / 2
1D trigger
(not for pathloss)
RSCP or
Ec/No
best cell 1
H1d/2
CIO1
cell 2
CIO2
time to trigger
trigger 1D report
best cell = cell 2
time
Fig. 41 Intra-frequency reporting event 1D trigger. (TM3201 Radio Resource Control Protocol RRC, 77)

12. cell 1
UE
active set
Source
Node B
Target
Node B
cell 2
RNC
cell 1
Measurement Control
(setup: measurement ID, intra-frequency cell info list {cell 2}, intra-freq. measurement quantity =
CPICH Ec/No intra-freq. measurement reporting event list {1D + parameters} )
event 1D
cell 2 stronger than cell 1
RRC
RRC
Measurement Report
(measured result {cell2, observed SFN time difference, scrambling code, CPICH-Ec/No},
event results {1D – scrambling code of associated cell 2} )
1) hardHO
decision
RL Setup Request
NBAP 2) hard HO
( RNC Communic. Context ID2, RL-ID,
prep.
Cell ID=2, DL code information, DL power
Information, UL scrambling code info )
NBAP
RL Setup Response
( RNC Communic. Context ID2,
Node B Communic. Context ID2, RL-ID,
received total wideband power,
Binding ID2 )
3) soft HO
exec.
Establishment Request
ALCAP
( Binding ID2, Path ID2, CID2, ... )
ALCAP
Establishment Confirm
Fig. 42 Hard handover scenario 1(2). (TM3201 Radio Resource Control Protocol RRC, 79)

13. UE
Target
Node B
cell 2
Radio Bearer Reconfiguration
( new UL/DL codes, new transport format sets and combination sets )
DPCH synchronisation
NBAP
RNC
RRC
RL Restore Indication
( RNC Communic. Context ID2 )
RRC
Radio Bearer Reconfiguration Complete
( ... )
active set
cell 2
Measurement Control
( neighbor cell list for cell 2, measurement reporting events )
NBAP
RRC
RL Failure Indication
( RNC Communic. Context ID1 )
RL Deletion Request
NBAP
( Node B Communic. Context ID1 )
NBAP
RL Deletion Response
( RNC Communic. Context ID1 )
Release Request
( .. [for path 1] )
ALCAP
Release Confirm
( .. [for path 1] )
ALCAP
Fig. 43 Hard handover scenario 2(2). (TM3201 Radio Resource Control Protocol RRC, 79)
Source
Node B
cell 1

14. Intra Frequency Reporting Event 1E
10 ⋅ Log M New + CIONew ≥ T1e + H1e / 2
1E trigger
(not for pathloss)
10 ⋅ Log M New + CIONew < T1e − H1c / 2
leaving trigger
(not for pathloss)
RSCP or
Ec/No
CIO1
H1e/2
T1e
cell 1
H1e/2
time to trigger
trigger 1E report
Add cell 1 to Triggered_1E_Event
time to trigger
remove cell 1 from
Triggered_1E_Event
time
trigger 1E report
Add cell 1 to Triggered_1E_Event
Fig. 44 Trigger and leaving trigger criteria for intra-frequency reporting event 1E. (TM3201 Radio Resource Control Protocol RRC, 81)

15. Intra Frequency Reporting Event 1F
10 ⋅ Log M Old + CIOOld ≤ T1 f − H1 f / 2
1F trigger
(not for pathloss)
leaving trigger
(not for pathloss)
10 ⋅ Log M Old + CIOOld < T1 f + H1 f / 2
cell 1
CIO1
RSCP or
Ec/No
H1f/2
T1f
H1f/2
time to trigger
trigger 1F report
add cell 1 to Triggered_1F_Event
time to trigger
remove cell 1 from
Triggered_1F_Event
time
trigger 1F report
add cell 1 to Triggered_1F_Event
Fig. 45 Trigger and leaving trigger criteria for intra-frequency reporting event 1F. (TM3201 Radio Resource Control Protocol RRC, 81)

16. Inter Frequency Reporting Events - Overview
Event ID
2A
Event Description
Notes
Change of best frequency.
Handover to new frequency
2B
Estimated quality of current used frequency is below a certain threshold
and estimated quality of a non-used frequency is above a certain threshold.
2C
Estimated quality of a non-used frequency is
above a certain threshold.
2D
Estimated quality of currently used frequency is
below a certain threshold.
Trigger inter-frequency
measurements.
2E
The estimated quality of a non-used frequency
is below a certain threshold.
Stop inter-frequency
measurements on this
frequency.
2F
The estimated quality of currently frequency is
above a certain threshold.
Stop all inter-frequency
measurements.
Fig. 46 Inter-frequency reporting event –overview. (TM3201 Radio Resource Control Protocol RRC, 83)

17. Inter RAT Reporting Events - Overview
Event ID
Event Description
Notes
3A
Estimated quality of current used UTRAN frequency is below a certain threshold
and estimated quality of other system frequency is above a certain threshold.
Handover to new system.
3B
Estimated quality of other system is below
a certain threshold.
Stop inter-RAT
measurements.
3C
The estimated quality of other system is
above a certain threshold.
3D
Change of best cell in other system.
Fig. 47 Inter-RAT reporting events – overview. (TM3201 Radio Resource Control Protocol RRC, 85)

18. Traffic Volume Reporting Events - Overview
Event ID
Event Description
Notes
4A
TrCH traffic volume becomes bigger than an
absolute threshold.
SF switch to SF/2 or
TrCH switch FACH to DCH
4B
TrCH traffic volume becomes smaller than an
absolute threshold.
SF switch to 2SF or
TrCH switch DCH to FACH
Fig. 48 Traffic volume reporting events. (TM3201 Radio Resource Control Protocol RRC, 87)

19. Buffer
Occupancy
Traffic Volume
(RLC Buffer Occupancy)
Transp. Channel x
measurement report
4A trigger start/stop
4B trigger start/stop
T4A
T4B
time
time
to
trigger 4A
pending
time
after
trigger 4A
4A
4A 4A 4A
4B
4A
4A 4A
4B
time
to
trigger 4B
4B
4B
pending
time
after
trigger 4B
4B
4B
Fig. 49 Traffic volume reporting events 4A and 4B. (TM3201 Radio Resource Control Protocol RRC, 89)
Traffic Volume Reporting Event 4A and 4B

20. cell 1
RNC
Node B
UE
State:
Event 4A
for TrCH x
RRC
Measurement Control
RRC
(setup: measurement ID, traffic volume measurement for TrCH x {4A, time to trigger, pending time},
{4B, time to trigger, pending time} )
Measurement Report
( event result {4A for TrCH x, Buffer Occupancy, Variance} )
RL Setup Request
( RNC Communic.Context ID, RL-ID,
DL Code Info, UL Code Info,... )
TrCH
Switch
Decision
NBAP
RL Setup Response
NBAP
( RNC Communic. Context ID, Binding ID
Node B Communic. Context ID, RL-ID )
Establishment Request
ALCAP
( Binding ID, Path ID, CID, ... )
ALCAP
Establishment Confirm
Radio Bearer Reconfiguration
( DPCH info, new transport format sets and combination sets, ...)
RRC
RRC
Radio Bearer Reconfiguration Complete
()
State:
CELL_DCH
Measurement Control
(new measurements for CELL_DCH state )
RRC
Fig. 50 Transport channel switch. (TM3201 Radio Resource Control Protocol RRC, 91)
CELL_FACH

21. Quality Reporting Events - Overview
Event ID
5A
Event Description
A predefined number of bad CRCs is exceeded
during a predefined sliding time window.
Notes
Increase max UL Tx power or
abort service or reduce max bit rate
Fig. 51 Quality reporting events – overview. (TM3201 Radio Resource Control Protocol RRC, 93)

22. Quality Reporting Event 5A
CRC ok
Pending After Trigger = 5 CRC
Bad CRC = 2 CRC
Total CRC = 4 CRC
CRC bad
Total CRC
Total CRC
Total CRC
Total CRC
Total CRC
DL
Transport
Blocks
Pending Time
After Trigger
5A
Report
Pending Time
After Trigger
5A
Report
Fig. 52 Quality reporting event 5A. (TM3201 Radio Resource Control Protocol RRC, 93)
Example Configuration:

23. UE Internal Reporting Events - Overview
Event ID
Event Description
6A
UE Tx power becomes bigger than absolute
threshold.
6B
Notes
UE Tx power becomes less than absolute
threshold.
6C
UE Tx power reaches its minimum value.
6D
UE Tx power reaches its maximum value.
6E
UE RSSI reaches the UE‘s receiver dynamic range.
6F
The Rx-Tx time difference for a radio link in the active
set becomes larger than an absolute threshold.
6G
The Rx-Tx time difference for a radio link in the active
set becomes smaller than an absolute threshold.
Fig. 53 UE internal reporting events – overview. (TM3201 Radio Resource Control Protocol RRC, 95)

24. UE Positioning Reporting Events - Overview
Event ID
Event Description
7A
UE position changes more than an absolute
threshold.
7B
Notes
SFN-SFN measurement changes more than an
absolute threshold.
7C
GPS time and SFN time have drifted apart more than an
absolute threshold.
Fig. 54 UE positioning reporting events – overview. (TM3201 Radio Resource Control Protocol RRC, 95)