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LTE KPI and PI Formula_NOKIA.pdf
1.
15/04/2015 1 © Nokia
2014 Commercially Confidential LTE KPI Statistic and Formula Traffic and Capacity Formula
2.
15/04/2015 2 © Nokia
2014 Commercially Confidential KPI Statistic and Formula
3.
15/04/2015 3 © Nokia
2014 Commercially Confidential LTE KPI Acceptance Scope LTE Drive Test KPI LTE OSS Statistics KPI LTE KPI Proposal Appendix
4.
15/04/2015 4 © Nokia
2014 Commercially Confidential KPI Acceptance Scope There are two KPI monitoring for LTE. 1. OSS Statistics KPI 2. Drive Test KPI This document provides a brief description for initial discussion about LTE KPI monitoring for LTE Network.
5.
15/04/2015 5 © Nokia
2014 Commercially Confidential LTE KPI Acceptance Scope LTE Drive Test KPI LTE OSS Statistics KPI LTE KPI Proposal Appendix
6.
15/04/2015 6 © Nokia
2014 Commercially Confidential LTE OSS Statistics KPI NSN Formula NSN Formula NSN Formula Target Proposed (%) Usage Cell Availability excl. BLU LTE_5239a 100.00 Accessibility RRC Connection Setup Success Ratio LTE_5218c 97.00 Accessibility E-RAB Setup Success Ratio LTE_5017a 97.00 Retainability E-RAB Drop Ratio LTE_5025d 2.00 Mobility Intra-eNB Handover Success Ratio LTE_5035a 95.00 Mobility Inter-eNB HO Success Ratio (X2-Based) LTE_5048b 95.00 Mobility Inter-RAT HO Success Ratio LTE_5195a 90.00
7.
15/04/2015 7 © Nokia
2014 Commercially Confidential RRC Con SSR = (no.of samples when cell is available / number of all samples when cell is planned unavailable ) * 100% 100 * sum ([M8020C3]) / sum ([M8020C6] - [M8020C4]) 100 * sum ([SAMPLES_CELL_AVAIL]) / sum ([DENOM_CELL_AVAIL – SAMPLES_CELL_PLAN_AVAIL]) Description : Shows the Cell Availability, excluding blocked by user state (BLU) that gives the percent of available time over time that should be available. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) Cell Availability excl. BLU
8.
15/04/2015 8 © Nokia
2014 Commercially Confidential RRC Con SSR = (RRC connection setup completions / RRC connection requests) * 100% 100 * sum ([M8013C5]) / sum ([M8013C17]+ [M8013C18]+ [M8013C19]+ [M8013C20]+ [M8013C21]) 100 * sum ([SIGN_CONN_ESTAB_COMP]) / sum ([SIGN_CONN_ESTAB_ATT_MO_S] + [SIGN_CONN_ESTAB_ATT_MT] + [SIGN_CONN_ESTAB_ATT_MO_D] + [SIGN_CONN_ESTAB_ATT_OTHERS]+ [SIGN_CONN_ESTAB_ATT_EMG]) Description : Shows the setup success ratio for the elementary procedure “RRC connection establishment” used to setup a radio connection from UE to eNB. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) RRC Connection Setup Success Ratio
9.
15/04/2015 9 © Nokia
2014 Commercially Confidential RRC Connection Setup Overview
10.
15/04/2015 10 © Nokia
2014 Commercially Confidential E-RAB SSR = (E-RAB setup successes / E-RAB setup attempts) * 100 % 100 * sum ([M8006C1]) / sum ([M8006C0]) 100 * sum ([EPS_BEARER_SETUP_COMPLETIONS]) / sum ([EPS_BEARER_SETUP_ATTEMPTS]) Description : Describes the setup success ratio of the elementary E-RAB setup procedure used to setup the E-RAB between MME and UE. It indicates the E-UTRAN contribution to network accessibility for the end user, not the whole end-to-end service accessibility. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-RAB Setup Success Ratio
11.
15/04/2015 11 © Nokia
2014 Commercially Confidential Attach Procedure
12.
15/04/2015 12 © Nokia
2014 Commercially Confidential Attach Procedure (continued)
13.
15/04/2015 13 © Nokia
2014 Commercially Confidential E-RAB DR = (abnormal E-RAB releases from RAN point of view / all E-RAB releases) * 100% 100 * sum ([M8006C12]+[M8006C14]+ [M8006C13])/ Sum ([M8006C6]+[M8006C7]+ [M8006C8]+ [M8006C9]+ [M8006C15]+[M8006C10]+ [M8006C12]+[M8006C14]+ [M8006C13] + [M8006C174] + [M8006C175]) 100 * sum ([ENB_EPS_BEARER_REL_REQ_RNL]+ [ENB_EPS_BEARER_REL_REQ_TNL]+ [ENB_EPS_BEARER_REL_REQ_OTH]) / sum ([EPC_EPS_BEARER_REL_REQ_NORM]+ [EPC_EPS_BEARER_REL_REQ_DETACH]+ [EPC_EPS_BEARER_REL_REQ_RNL]+ [EPC_EPS_BEARER_REL_REQ_OTH] + [ENB_EPS_BEAR_REL_REQ_RNL_REDIR]+ [ENB_EPS_BEARER_REL_REQ_NORM] + [ENB_EPS_BEARER_REL_REQ_RNL]+ [ENB_EPS_BEARER_REL_REQ_TNL]+ [ENB_EPS_BEARER_REL_REQ_OTH] + [PRE_EMPT_GBR_BEARER ]+ [PRE_EMPT_NON_GBR_BEARER]) Description : Describes the ratio of abnormally released (dropped) E-RABs from RAN point of view. Each bearer of the "Bearer to be Released List" IE is counted. RAN point of view means that as abnormal E-RAB drops only those ones initiated by eNB are counted. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-RAB Drop Ratio
14.
15/04/2015 14 © Nokia
2014 Commercially Confidential eNodeB Initiated Transition to ECM Idle Transition due to inactivity UE consumes less battery power in idle mode Less active UEs which network has to handle Fast going to inactivity has drawback of longer connection setup time (more transitions idle to connected) eNB UE MME S -GW S 1 AP : UE Context Release Command S 1 AP : UE Context Release Complete RRC : RRC Connection Release Release all UE related resources, remove UE context Detect user inactivity or other eNB trigger S 1 AP : UE Context Release Request UE in RRC-CONNECTED L2 ACK InactivityTimer LNCEL, 10..65535 s, 300s S11 interaction to inform S-GW aboout connection release Set UE to RRC-IDLE Set UE to ECM-IDLE
15.
15/04/2015 15 © Nokia
2014 Commercially Confidential S1AP: UEContextReleaseRequest With cause eNodeB initiated EPS bearer release M8006C10 /C125 normal release of any/QCI1 bearer(UE inactivity) M8006C15/C161 radio network layer inter-RAT redirection of any/QCI1 bearer eNodeB initiated transition to ECM idle M8013C13 normal release S1AP: UEContextReleaseCommand With cause S1AP: UEContextReleaseComplete eNB MME ECM_IDLE ECM_CONNECTED Transition to ECM Idle (Positive) EPC initiated EPS bearer release M8006C6/C89 normal release of any/QCI1 bearer (UE initiated) M8006C7/C98 detach of any/QCI1 bearer (UE or MME initiated) EPC initiated transition to ECM idle M8013C9 normal release (UE initiated) M8013C10 detach (UE or MME initiated) Radio bearer release M8007C3 normal release M8007C4 detach M8006 EPS Bearer Measurements: cell level M8007 Radio Bearer Measurements: cell level M8013 UE State Measurements: cell level
16.
15/04/2015 16 © Nokia
2014 Commercially Confidential S1AP: UEContextReleaseRequest With cause S1AP: UEContextReleaseCommand With cause S1AP: UEContextReleaseComplete eNB MME ECM_IDLE ECM_CONNECTED Transition to ECM Idle (Negative) eNodeB initiated EPS bearer release M8006C12/C134 radio link failure for any/QCI1 bearer M8006C14/C152 transport network unavailable for any/QCI1 bearer M8006C13/C143 other failure for any/QCI1 bearer eNodeB initiated transition to ECM idle M8013C15 radio link failure M8013C16 other failure Radio bearer release M8007C5 radio link failure M8007C6 other failure Radio link failure detected by eNodeB Air interface problem
17.
15/04/2015 17 © Nokia
2014 Commercially Confidential Intra HO SR = (number of successful intra eNB Hos) / (number of intra eNB HO attempts) * 100% 100 * sum ([M8009C7]) / sum ([M8009C6]) 100 * sum ([SUCC_INTRA_ENB_HO]) / sum ([ATT_INTRA_ENB_HO]) Description : Describes the success ratio for the handover execution phase, when the source eNodeB receives information that the UE is successfully connected to the target cell within own eNodeB. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) Intra-eNodeB Handover Success Ratio
18.
15/04/2015 18 © Nokia
2014 Commercially Confidential Intra-eNodeB Handover Procedure
19.
15/04/2015 19 © Nokia
2014 Commercially Confidential Inter X2 based HO SR = (number of successful inter eNB X2 based HOs) / (number of inter eNB X2 based HO attempts) * 100% 100 * sum ([M8014C7]) / sum ([M8014C6]) 100 * sum ([SUCC_INTER_ENB_HO]) / sum ([ATT_INTER_ENB_HO]) Description : Describes the success ratio for the inter-eNB X2-based handover execution phase, when the source eNodeB receives information that the UE is successfully connected to the target cell within target eNodeB. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) Inter-eNodeB Handover Success Ratio
20.
15/04/2015 20 © Nokia
2014 Commercially Confidential Inter-eNodeB Handover Procedure Preparation
21.
15/04/2015 21 © Nokia
2014 Commercially Confidential Inter-eNodeB Handover Procedure Execution
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15/04/2015 22 © Nokia
2014 Commercially Confidential Inter-eNodeB Handover Procedure Completion
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15/04/2015 23 © Nokia
2014 Commercially Confidential Inter RAT based HO SR = (number of successful inter RAT HOs) / (number of inter RAT HO attempts) * 100% 100 * sum ([M8016C23]) / sum ([M8016C21]) 100 * sum ([ISYS_HO_SUCC]) / sum ([ISYS_HO_ATT]) Description : Describes the success ratio for the inter RAT handover execution phase, when the source eNB receives information that the UE successfully is connected to the target cell (WCDMA). Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) Inter-RAT Handover Success Ratio
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15/04/2015 26 © Nokia
2014 Commercially Confidential LTE OSS Statistics KPI LTE KPI Acceptance Scope Appendix LTE Drive Test KPI LTE KPI Proposal
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15/04/2015 27 © Nokia
2014 Commercially Confidential LTE Drive Test KPI KPI Class Network KPI Target Accessibility PS Data Call Setup Success Ratio 98.00 % Accessibility CSFB Call Setup Success Ratio 97.00 % Retainability PS Data Call Drop Ratio 2.00 % Mobility Intra-LTE Handover Success Ratio 97.00 % Mobility Inter-RAT Handover Success Ratio 90.00 % Integrity Peak User Throughput DL 10.00 Mbps Integrity Peak User Throughput UL 3.00 Mbps
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15/04/2015 28 © Nokia
2014 Commercially Confidential Description : Ratio between successfully established EPS bearers compared to the overall number of EPS bearer establishment attempts. It corresponds to the probability that a user or the LTE network can establish an EPS bearer at any moment in time. Requests which are terminated by timer expiry (due to the unavailability of some LTE resource) are considered as unsuccessful attempts. Authentication errors (requests rejected by the MME) are included in the total number of failures. Only the first RRC CONNECTION REQUEST is to be considered, since counting retries of the same message would increase the overall number of bearer establishment attempts, and thus reduce the success ratio. PS Data Call Setup Success Ratio Formula : - Success : RRC CONNECTION RECONFIGURATION COMPLETE message sent by the UE. - Total : an attempt is the sending of RRC CONNECTION REQUEST with appropriate establishment cause by the UE.
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15/04/2015 29 © Nokia
2014 Commercially Confidential Methodology : Pre-condition 1. UE status before measurement : EMM-REGISTERED and ECM-IDLE. 2. UE is locked to LTE network. PS Data Call Setup Success Ratio (continued) Test Procedure 1. Set the FMT to generate calls to the FTP Server automatically with the following script/sequence: a. Connection attempt b. Log into the FTP Server c. FTP Download of 1 GB file for 15 sec d. Stop download (connection release) e. Leave 15 sec before starting the next session f. Repeat all previous steps (from ‘a’) 2. Start drive test and continue driving until drive route is completed. 3. Verify the Packet Data Call Setup Success Rate
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15/04/2015 30 © Nokia
2014 Commercially Confidential Description : Ratio between successfull Call Alerting in UTRAN and number of Extended Service Request for CSFB in E-UTRAN. CSFB Call Setup Success Ratio Formula : - Success : ALERTING MESSAGE message received by the UE in UTRAN networks. - Total : an attempt is the sending of EXTENDED SERVICE REQUEST with appropriate establishment cause by the UE in LTE networks.
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15/04/2015 31 © Nokia
2014 Commercially Confidential Methodology : Pre-condition 1. UE status before measurement: EMM-REGISTERED and ECM-IDLE. 2. UE is not locked to LTE network. CSFB Call Setup Success Ratio (continued) Test Procedure 1. Set the FMT to generate calls to test call number (i.e. 199) automatically with the following script/sequence: a. CS call attempt to 199 b. CS call for 5 sec c. Terminate CS call from UE (connection release) d. Leave 30 sec before starting the next session and ensure UE already reselects back to LTE e. Repeat CS call attempt (from ‘a’) 2. Start drive test and continue driving until drive route is completed. 3. Verify the CSFB Call Setup Success Ratio.
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15/04/2015 32 © Nokia
2014 Commercially Confidential Definition : Ratio between abnormally released bearers, and the overall number of established EPS bearers. An abnormal release is defined as any EPS bearer termination, which was not triggered by the mobile user (from UE side). Thus, it reflects the probability that an established bearer gets aborted due to insufficient network resources. PS Data Call Drop Ratio Formula : - Success: submission of the message RRC CONNECTION RECONFIGURATION COMPLETE by the UE, see [3GPP36.331] - Drop: successful establishments minus terminations by the user, i.e. the UE submitting a L3 DETACH REQUEST (see [3GPP24.008]) carried within the RRC message UL NAS TRANSPORT (refer to [3GPP36.331]). For the calculation of a network initiated EPS bearer drop rate, ePC initiated L3 DETACH REQUEST-s are to be considered.
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15/04/2015 33 © Nokia
2014 Commercially Confidential Methodology : Pre-condition 1. UE status before measurement : EMM-REGISTERED and ECM-IDLE. 2. UE is locked to LTE network. PS Data Call Drop Ratio (continued) Test Procedure 1. Set the FMT to generate calls to the FTP Server automatically with the following script/sequence: a. Connection attempt b. Log into the FTP Server c. FTP Download of 1 GB file for 15 sec d. Stop download (connection release) e. Leave 15 sec before starting the next session f. Repeat all previous steps (from ‘a’) 2. Start drive test and continue driving until drive route is completed. 3. Verify the Packet Data Call Drop Rate
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15/04/2015 34 © Nokia
2014 Commercially Confidential Definition : Ratio between successfuly intra-LTE Handover compare to intra-LTE Handover attempts. Intra LTE handover is the basic mobility function for UEs in active mode. When one or more neighbour cells are better than current serving cell the UE is ordered to handover to best cell. Best cell evaluation is based on measurements of neighbour cells. Intra-LTE Handover Success Ratio Formula : Intra LTE Outgoing and Incoming Handover successfully executed performed on X2 interfaces and S1, intra eNB and inter eNB, with and without data forwarding. Event for Incoming Handover Execution has been reported. Intra-LTE HO SR = (Intra-LTE HO Success / Intra-LTE HO attempts) * 100
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15/04/2015 35 © Nokia
2014 Commercially Confidential Methodology Pre-condition 1. UE status before measurement: EMM-REGISTERED and ECM-IDLE. 2. UE is locked to LTE network. Intra-LTE Handover Success Ratio (continued) Test Procedure 1. Set the FMT to generate calls to the FTP Server automatically with the following script/sequence: a. Connection attempt b. Log into the FTP server c. FTP Download of 1 GB file d. After FTP download is completed, repeat FTP download (from ‘c’) 2. Start drive test and continue driving until drive route is completed. 3. Verify the Intra-LTE Handover Success Rate
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15/04/2015 36 © Nokia
2014 Commercially Confidential Definition : Ratio between successfully PS Handover to WCDMA network to PS Handover attempts to WCDMA network. Inter-RAT Handover Success Ratio Formula : PS Handover to WCDMA is successfully executed. Inter-RAT HO SR = (PS HO success to WCDMA / PS HO attempts to WCDMA) * 100
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15/04/2015 37 © Nokia
2014 Commercially Confidential Inter-RAT Handover Success Ratio (continued) Methodology : Pre-condition 1. UE status before measurement: EMM-REGISTERED and ECM-IDLE. 2. UE is not locked to LTE network. 3. Test is performed on the edge of LTE coverage where WCDMA coverage is present. Test Procedure 1. Set the FMT to generate calls to the FTP Server automatically with the following script/sequence: a. Connection attempt b. Log into the FTP server c. FTP Download of 1 GB file 2. Start drive test and continue driving until UE is on the edge of LTE coverage and performing Inter-RAT Handover to UTRAN. 3. Verify the Inter-RAT Handover Success Rate.
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15/04/2015 38 © Nokia
2014 Commercially Confidential Definition : After the connection to the FTP server has been successfully established, the parameter describes the average data transfer rate measured over the data transfer phase (i.e. prerequisite to the data transfer is successful Service Access (availability of an EPS bearer and connection to the FTP service). The data transfer phase shall also be successfully terminated. The data rate is measured on physical layer in DL and UL direction. Peak User Throughput Formula : The peak throughput is measured on Physical layer (PDSCH) .
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15/04/2015 39 © Nokia
2014 Commercially Confidential Peak User Throughput Drive Test Procedure 1. Set the FMT to generate calls to the FTP Server automatically with the following script/ sequence : a. Connection attempt b. Log into the FTP Server c. FTP Download of 1 GB file x 5 sessions for 180 sec d. Stop FTP Download (connection release) e. Repeat FTP Download (from ‘c’) 2. Start the test in stationary position and continue until at least 3 samples are recorded. 3. Verify the peak DL/UL throughput performance. Methodology : Pre-condition 1. UE status before measurement: EMM-REGISTERED and ECM-IDLE. 2. UE is locked to LTE network. 3. UE is in stationary position and radio condition should be : RSRP ≥ - 80dBm, SINR ≥ 20 dB
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15/04/2015 40 © Nokia
2014 Commercially Confidential LTE OSS Statistics KPI LTE KPI Acceptance Scope Appendix LTE Drive Test KPI LTE KPI Proposal
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15/04/2015 41 © Nokia
2014 Commercially Confidential LTE Reporting Suite Component The LTE Reporting Suite Component is designed to provide information for Service & Network Planning, Service Creation, Service & Network Monitoring and Business Management. It is used by different operational areas for : – Network Dimensioning and Optimization – Troubleshooting – Traffic Trend analysis for Long term planning – Network Performance – Service Usage Predefined reports are available off-the-shelf and are grouped in various LTE reporting categories. Optimisation Configuration Planning Rel. 8 (LTE) SAE GW eNB MME
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15/04/2015 42 © Nokia
2014 Commercially Confidential Pre-defined Reports Overview (1) 1. System Program • RSLTE000: System Program • RSLTE001: System Program (Cell Level) 2. Accessibility and Retainability • RSLTE038: Accessibility and Retainability • RSLTE003: Network Access - General and S1AP • RSLTE004: Network Access - Service Access and RRC • RSLTE037: Service Retainability 3. Mobility • RSLTE005: HO analysis • RSLTE031: Neighbour HO analysis • RSLTE045: NACC to GSM per Neighbour • RSLTE044: HO analysis for UTRAN per neighbor 4. Interface analysis • RSLTE040: VLAN Statistics at Ethernet level • RSLTE041: If analysis at Ethernet plain level • RSLTE006: X2-Interface • RSLTE007: IP interface traffic • RSLTE032: IP interface traffic and QoS classes PHB • RSLTE008: Ethernet Interface • RSLTE033: VLAN analysis per QoS class • RSLTE009: VLAN total volume analysis
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15/04/2015 43 © Nokia
2014 Commercially Confidential Pre-defined Reports Overview (2) 5. Modulation and Coding Scheme • RSLTE039: NACK MCS Time • RSLTE010: Transmissions and Volume per Low/High MCS • RSLTE011: Percentage of transmissions per MCS • RSLTE028: Data Volume per MCS • RSLTE043: PUSCH 1ST_TRANS per MCS • RSLTE042: Unsuccessful Transmissions per MCS 6. Integrity • RSLTE034: IP Packet integrity • RSLTE035: Packet delay • RSLTE013: BLER per Modulation • RSLTE014: Congestion per QoS classes for IP PHB • RSLTE036: Congestion per QoS classes per VLAN • RSLTE015: IPsec packets 7. Usage • RSLTE016: Throughput at PDCP level and per QoS class • RSLTE017: Physical Resource Block utilization • RSLTE018: RLC, SDU, RRC, analysis • RSLTE019: Power • RSLTE020: MIMO • RSLTE026: Active users per eNB • RSLTE027: Active users per cell
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15/04/2015 44 © Nokia
2014 Commercially Confidential Pre-defined Reports Overview (3) 8. Signal Quality • RSLTE022: CQI • RSLTE029: SINR for PUCCH • RSLTE023: RSSI for PUCCH • RSLTE024: RSSI for PUSCH • RSLTE025: SINR for PUSCH 9. FM Statistics • ALARM STAT 10. Full List of reports • All reports listed before to easy user access
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15/04/2015 45 © Nokia
2014 Commercially Confidential KPI THRESHOLD Key Performance Indicator 5 MHz 10 MHz 15 MHz 20 MHz CSFB Call Setup Success Rate 97.00% 97.00% 97.00% 97.00% PS Data Call Setup Success Rate 98.00% 98.00% 98.00% 98.00% PS Data Call Drop Rate 2.00% 2.00% 2.00% 2.00% Intra-LTE Handover Success Rate 97.00% 97.00% 97.00% 97.00% Inter-RAT Handover Success Rate 90.00% 90.00% 90.00% 90.00% RSRQ Distribution >= -7 dB 80.00% 80.00% 80.00% 80.00% **Max DL Throughput (Static Test) 5 Mbps 7.5 Mbps 10 Mbps 12.5 Mbps **Max UL Throughput (Static Test) 1 Mbps 1.8 Mbps 3.5 Mbps 5 Mbps Key Performance Indicator Target Site Availability 100% RRC Connection Setup Success Ratio 97.00% E-RAB Setup Success Rate 97.00% E-RAB Drop Rate 2.00% Intra LTE HO Success Rate (X2 based) 95.00% **Inter-RAT HO Success Ratio 90.00% OSS KPI DT KPI
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15/04/2015 47 © Nokia
2014 Commercially Confidential Traffic and Capacity Statistic and Formula
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15/04/2015 48 © Nokia
2014 Commercially Confidential LTE Traffic and Capacity Statistic Formula Class Network KPI NSN Formula Throughput E-UTRAN average PDCP Layer Active Cell Throughput DL LTE_5292d Throughput Maximum PDCP Throughput DL LTE_291b Throughput E-UTRAN average PDCP Layer Active Cell Throughput UL LTE_5289d Throughput Maximum PDCP Throughput UL LTE_288b Payload E-UTRAN PDCP SDU Volume DL LTE_5212a Payload E-UTRAN PDCP SDU Volume UL LTE_5213a Cell Resource E-UTRAN Average PRB usage per TTI UL LTE_5273b Cell Resource E-UTRAN average PRB usage per TTI DL LTE_5276b Capacity E-UTRAN Average Active Connected UEs LTE_5804c Capacity E-UTRAN Maximum of Average Active Connected UEs LTE_5214a Capacity E-UTRAN Average RRC Connected Ues LTE_5242a Paging S1_PAGING M8000C11 (S1 Paging requests) CSFB E-UTRAN CS Fallback Attempts with redirection via RRC Connection Release Distribution Rate, connected mode LTE_5109a CSFB E-UTRAN CS Fallback Attempts with redirection via RRC Connection Release Distribution Rate, idle mode LTE_5110a
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15/04/2015 49 © Nokia
2014 Commercially Confidential AVG DL PDCP CELL THP = average PDCP cell throughput DL 8*sum(M8012C20)/sum(M80 12C90) 8*sum(PDCP_SDU_VOL_DL)/sum(ACTIVE_TTI_DL) Description : This KPI shows the active average PDCP layer throughput per cell in downlink direction Logical formula Summarization formula (PI ID) Summarization formula (Netact names) E-UTRAN average PDCP Layer Active Cell Throughput DL
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15/04/2015 50 © Nokia
2014 Commercially Confidential Maximum PDCP Throughput DL = max (PDCP Data Rate Max DL) max (M8012C25 ) max ( PDCP_DATA_RATE_MAX_DL ) Description : This KPI gives indication of the eUu interface traffic load by reporting Max DL PDCP traffic throughput. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) Maximum PDCP Throughput DL
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15/04/2015 51 © Nokia
2014 Commercially Confidential AVG UL PDCP CELL THP= average PDCP cell throughput UL 100 * sum ([M8012C19]) / sum ([M8012C89]) 8*sum(PDCP_SDU_VOL_UL)/sum(ACTIVE_TTI_UL) Description : This KPI shows the active average PDCP layer throughput per cell in uplink direction Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-UTRAN average PDCP Layer Active Cell Throughput UL
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15/04/2015 52 © Nokia
2014 Commercially Confidential Maximum PDCP Throughput UL = max (PDCP Data Rate Max UL) max (M8012C22) max ( PDCP_DATA_RATE_MAX_UL ) Description : This KPI gives indication of the eUu interface traffic load by reporting Max UL PDCP traffic throughput. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) Maximum PDCP Throughput UL
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15/04/2015 53 © Nokia
2014 Commercially Confidential DL PDCP SDU VOL= PDCP SDU VOL DL sum(M8012C20)/1000000 sum(PDCP_SDU_VOL_DL)/1000000 Description : This KPI shows the PDCP SDU volume on eUu interface per cell in downlink direction. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-UTRAN PDCP SDU Volume DL
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15/04/2015 54 © Nokia
2014 Commercially Confidential UL PDCP SDU VOL= PDCP SDU VOL UL sum([M8012C19])/1000000 sum([PDCP_SDU_VOL_UL])/10000000 Description : This KPI shows the PDCP SDU volume on eUu interface per cell in uplink direction. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-UTRAN PDCP SDU Volume UL
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15/04/2015 55 © Nokia
2014 Commercially Confidential AVG UL PRBs = (average (used/available)UL PRBs per TTI) avg([M8011C24])/10 avg([UL_PRB_UTIL_TTI_MEAN])/10 Description : This KPI shows the average value of the Physical Resource Block (PRB) utilization per TTI in uplink direction. The utilization is defined by the ratio of used to available PRBs per TTI. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-UTRAN Average PRB usage per TTI UL
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15/04/2015 56 © Nokia
2014 Commercially Confidential AVG DL PRBs = (average (used/available) DL PRBs per TTI) avg([M8011C37])/10 avg([DL_PRB_UTIL_TTI_MEAN])/10 Description : This KPI shows the average value of the Physical Resource Block (PRB) use per TTI in downlink direction. The use is defined by the ratio of used to available PRBs per TTI. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-UTRAN average PRB usage per TTI DL
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15/04/2015 57 © Nokia
2014 Commercially Confidential ACT UE ENB=(average number of active UEs per eNB) sum(M8018C8) / sum(M8018C9) sum(SUM_ACTIVE_UE_ENB)/sum(DENOM_ACTIVE_UE_ENB) Description : This KPI shows the average number of UE's having one SRB and at least one DRB during the measurement period per eNB Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-UTRAN Average Active Connected UEs
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15/04/2015 58 © Nokia
2014 Commercially Confidential MAX ACT UE ENB = (maximum of average number of active UEs per eNB) Max (avg(M8018C0)) Max (avg(ENB_LOAD_ACT_UE_AVG)) Description : This KPI shows the maximum of average number of UE's having one SRB and at least one DRB during the measurement period per eNB Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-UTRAN Maximum of Average Active Connected UEs
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15/04/2015 59 © Nokia
2014 Commercially Confidential ACT UE Area = (average number of RRC connected UEs) Sum (M8001C318)/sum(M8001C31 9) Sum (SUM_RRC_CONN_UE)/sum(DENOM_RRC_CONN_UE) Description : This KPI shows the average number of UE's having one SRB during the measurement period Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-UTRAN Average RRC Connected Ues
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15/04/2015 60 © Nokia
2014 Commercially Confidential S1_Paging = sum (S1 paging requests) Sum (M8000C11) Sum (S1_PAGING) Description : The number of S1 paging requests. Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) S1_PAGING
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15/04/2015 61 © Nokia
2014 Commercially Confidential CSFB AttDR = ( CS Fallback Attempts _x / CS Fallback Attempts all)*100% 100*Sum (M8016C12) /sum(M8016C11) 100*sum(CSFB_REDIR_CR_CMODE_ATT) / sum(CSFB_REDIR_CR_ATT) Description : This KPI describes the ratio of a specific CS Fallback Attempts related to all CS Fallback Attempts with redirection via RRC Connection Release. percentage CS Fallback attempts for UE in connected mode Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-UTRAN CS Fallback Attempts with redirection via RRC Connection Release Distribution Rate, connected mode
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15/04/2015 62 © Nokia
2014 Commercially Confidential CSFB AttDR = ( CS Fallback Attempts _x / CS Fallback Attempts all)*100% 100*sum(M8016C11- M8016C12) / sum (M8016C11) 100*sum(CSFB_REDIR_CR_ATT - CSFB_REDIR_CR_CMODE_ATT) / sum(CSFB_REDIR_CR_ATT) Description : This KPI describes the ratio of a specific CS Fallback Attempts related to all CS Fallback Attempts with redirection via RRC Connection Release. percentage CS Fallback attempts for UE in idle mode Logical formula Summarization formula (PI ID) Summarization formula (Abbreviation) E-UTRAN CS Fallback Attempts with redirection via RRC Connection Release Distribution Rate, idle mode
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15/04/2015 63 © Nokia
2014 Commercially Confidential
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