SlideShare a Scribd company logo

15 gsm bss network kpi (rx quality) optimization manual[1].doc

T
T

gsm bss optimization manual

15 gsm bss network kpi (rx quality) optimization manual[1].doc

1 of 18
Download to read offline
GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL
Product name Confidentiality level
GSM BSS INTERNAL
Product version Total 17 pages
V00R01
GSM BSS Network KPI (RxQuality) Optimization
Manual
(For internal use only)
Prepared by GSM&UMTS Network
Performance Research
Department
Dong
Xuan
Date 2009-01-05
Reviewed by Date yyyy-mm-dd
Reviewed by Date yyyy-mm-dd
Granted by Date yyyy-mm-dd
Huawei Technologies Co., Ltd.
All rights reserved
2014-06-18 Huawei Confidential Page 1 of 18
GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL
Revision Record
Date Revision
version
Change Description Author
2009-01-05 1.0 Draft completed. Dong
Xuan
2014-06-18 Huawei Confidential Page 2 of 18
GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL
GSM BSS Network KPI (RxQuality) Optimization
Manual
Keyword: RxQuality
Abstract:
This document analyzes factors that affect the downlink RxQuality on the
BSS side. Based on the analysis, some methods are elaborated to quickly
improve the downlink RxQuality. The Um quality is also to be improved to
avoid poor RxQuality failure, call drop, and frame deletion resulted from the
voice decoding decrease in the call. Some measures for optimizing this KPI
are provided in this document to help field engineers address quality
problems. This document targets at optimizing network KPIs and improving
network quality so as to make sound preparations for the final network
delivery.
Keyword: RxQuality (Downlink)
List of abbreviations:
Abbreviations Full spelling
2014-06-18 Huawei Confidential Page 3 of 18
GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL
Contents
1 Basic Principle.........................................................................................................6
1.1 Definition......................................................................................................................................6
1.2 Theory Introduction......................................................................................................................6
1.3 Recommended Formula................................................................................................................6
1.4 Signaling Procedure and Statistical Point.....................................................................................6
2 Influencing Factors................................................................................................7
3 Analysis Process and Optimization Methods...................................................8
3.1 Analysis Process............................................................................................................................8
3.1.1 Procedures for RxQuality Problem Location..........................................................................8
3.2 RxQuality Optimization Methods.................................................................................................9
3.2.1 Poor RxQuality on Entire Network.......................................................................................10
3.2.1.1 Processing Methods............................................................................................................10
3.2.1.2 Traffic Measurement Analysis............................................................................................11
3.2.1.3 Alarm Analysis....................................................................................................................11
3.2.2 Passive Intermodulation........................................................................................................11
3.2.2.1 Processing Methods............................................................................................................11
3.2.2.2 Traffic Measurement Analysis............................................................................................12
3.2.2.3 Alarm Analysis....................................................................................................................12
3.2.3 Intra-Network Interference...................................................................................................12
3.2.3.1 Processing Methods............................................................................................................12
3.2.3.2 Traffic Measurement Analysis............................................................................................12
3.2.3.3 Alarm Analysis....................................................................................................................13
3.2.4 Inter-Network Interference...................................................................................................13
3.2.4.1 Processing Methods............................................................................................................13
3.2.4.2 Traffic Measurement Analysis............................................................................................13
3.2.4.3 Alarm Analysis....................................................................................................................13
3.2.5 Hardware Fault......................................................................................................................13
3.2.5.1 Processing Methods............................................................................................................13
3.2.5.2 Traffic Measurement Analysis............................................................................................14
3.2.5.3 Alarm Analysis....................................................................................................................14
2014-06-18 Huawei Confidential Page 4 of 18
GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL
3.2.6 Huawei Anti-Interference Technology..................................................................................15
3.2.6.1 Processing Methods............................................................................................................15
3.2.6.2 Traffic Measurement Analysis............................................................................................16
3.2.6.3 Alarm Analysis....................................................................................................................16
3.2.7 Test Tool and Recommendations..........................................................................................16
3.2.8 Recommendations for Configuration and Test.....................................................................16
4 RxQuality Optimization Cases..........................................................................17
4.1 Low RxQuality in Kenya............................................................................................................17
4.2 Enabling Idle Burst Causing Interference Increase and Low RxQuality....................................17
5 Information Feedback.........................................................................................18
5.1 TEMS Test Log of Faulty Cell....................................................................................................18
5.2 Requirements for Existing Network Configuration Data and Traffic Measurement..................18
2014-06-18 Huawei Confidential Page 5 of 18
GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL
1 Basic Principle
1.1 Definition
The RxQuality is an informal KPI. It identifies the Bit Error Rate (BER) on
the Um interface based on the proportions of downlink RxQuality at various
levels. The RxQuality can reflect the entire network quality. When the
RxQuality is good and no major bug exists in voice processing, you can infer
that the voice quality on the network is good.
1.2 Theory Introduction
In theory, two measures can be taken to improve the RxQuality. One is to
improve the RxQuality and demodulation performance (decoding the BER)
with the same signals. The other is to decrease interference. In practice, the
latter is an optimization method for improving the RxQuality.
None.
1.3 Recommended Formula
None.
1.4 Signaling Procedure and Statistical Point
None.
2014-06-18 Huawei Confidential Page 6 of 18

Recommended

05 gsm bss network kpi (tch congestion rate) optimization manual
05 gsm bss network kpi (tch congestion rate) optimization manual05 gsm bss network kpi (tch congestion rate) optimization manual
05 gsm bss network kpi (tch congestion rate) optimization manualtharinduwije
 
Huawei case analysis call drop
Huawei case analysis call dropHuawei case analysis call drop
Huawei case analysis call dropMuffat Itoro
 
12 gsm bss network kpi (tch assignment success rate) optimization manual
12 gsm bss network kpi (tch assignment success rate) optimization manual12 gsm bss network kpi (tch assignment success rate) optimization manual
12 gsm bss network kpi (tch assignment success rate) optimization manualtharinduwije
 
03 gsm bss network kpi (sdcch congestion rate) optimization manual
03 gsm bss network kpi (sdcch congestion rate) optimization manual03 gsm bss network kpi (sdcch congestion rate) optimization manual
03 gsm bss network kpi (sdcch congestion rate) optimization manualtharinduwije
 
Call Setup Success Rate Definition and Troubleshooting
Call Setup Success Rate Definition and Troubleshooting Call Setup Success Rate Definition and Troubleshooting
Call Setup Success Rate Definition and Troubleshooting Assim Mubder
 
76125491 2 g-ericsson-recommended-parameters-g10
76125491 2 g-ericsson-recommended-parameters-g1076125491 2 g-ericsson-recommended-parameters-g10
76125491 2 g-ericsson-recommended-parameters-g10Rakesh Singh
 

More Related Content

What's hot

Gsm bss kpi analysis
Gsm bss kpi analysisGsm bss kpi analysis
Gsm bss kpi analysisHassan Imam
 
01 gsm bss network kpi (mos) optimization manual
01 gsm bss network kpi (mos) optimization manual01 gsm bss network kpi (mos) optimization manual
01 gsm bss network kpi (mos) optimization manualtharinduwije
 
Lte irat-troubleshooting-guide
Lte irat-troubleshooting-guideLte irat-troubleshooting-guide
Lte irat-troubleshooting-guideDenmark Wilson
 
04 gsm bss network kpi (tch call drop rate) optimization manual
04 gsm bss network kpi (tch call drop rate) optimization manual04 gsm bss network kpi (tch call drop rate) optimization manual
04 gsm bss network kpi (tch call drop rate) optimization manualtharinduwije
 
2G optimization_with_optima
2G optimization_with_optima2G optimization_with_optima
2G optimization_with_optimaZIZI Yahia
 
2 g and 3g kpi improvement by parameter optimization (nsn, ericsson, huawei) ...
2 g and 3g kpi improvement by parameter optimization (nsn, ericsson, huawei) ...2 g and 3g kpi improvement by parameter optimization (nsn, ericsson, huawei) ...
2 g and 3g kpi improvement by parameter optimization (nsn, ericsson, huawei) ...Jean de la Sagesse
 
Huawei parameter strategy v1.4 1st dec
Huawei parameter strategy v1.4  1st decHuawei parameter strategy v1.4  1st dec
Huawei parameter strategy v1.4 1st decKetut Widya
 
13 gsm bss network kpi (network interference) optimization manual[1].doc
13 gsm bss network kpi (network interference) optimization manual[1].doc13 gsm bss network kpi (network interference) optimization manual[1].doc
13 gsm bss network kpi (network interference) optimization manual[1].doctharinduwije
 
Optimization guidelines accessibility-ericsson-rev01
Optimization guidelines accessibility-ericsson-rev01Optimization guidelines accessibility-ericsson-rev01
Optimization guidelines accessibility-ericsson-rev01ZIZI Yahia
 
Ericsson optimization opti
Ericsson optimization optiEricsson optimization opti
Ericsson optimization optiTerra Sacrifice
 
Lte capacity monitoring
Lte capacity monitoringLte capacity monitoring
Lte capacity monitoringKlajdi Husi
 
10 gsm bss network kpi (uplink downlink balance) optimization manual[1].doc
10 gsm bss network kpi (uplink downlink balance) optimization manual[1].doc10 gsm bss network kpi (uplink downlink balance) optimization manual[1].doc
10 gsm bss network kpi (uplink downlink balance) optimization manual[1].doctharinduwije
 
422738668-LTE-Downlink-Throughput-Optimization-Based-on-Performance-Data [Rep...
422738668-LTE-Downlink-Throughput-Optimization-Based-on-Performance-Data [Rep...422738668-LTE-Downlink-Throughput-Optimization-Based-on-Performance-Data [Rep...
422738668-LTE-Downlink-Throughput-Optimization-Based-on-Performance-Data [Rep...SudheeraIndrajith
 
134170437 directed-retry-decision-libre
134170437 directed-retry-decision-libre134170437 directed-retry-decision-libre
134170437 directed-retry-decision-libreSyed Zahid Shah
 
Gsm bss-network-kpi-handover-success-rate-optimization-manual(HSR)
Gsm bss-network-kpi-handover-success-rate-optimization-manual(HSR)Gsm bss-network-kpi-handover-success-rate-optimization-manual(HSR)
Gsm bss-network-kpi-handover-success-rate-optimization-manual(HSR)Ayann Khan
 
zte umts-cs-call-drop-analysis-guide-zte
zte umts-cs-call-drop-analysis-guide-ztezte umts-cs-call-drop-analysis-guide-zte
zte umts-cs-call-drop-analysis-guide-zte3ggprs
 
2 drive test analysis ver1
2 drive test analysis ver12 drive test analysis ver1
2 drive test analysis ver1Virak Sou
 

What's hot (20)

Gsm bss kpi analysis
Gsm bss kpi analysisGsm bss kpi analysis
Gsm bss kpi analysis
 
01 gsm bss network kpi (mos) optimization manual
01 gsm bss network kpi (mos) optimization manual01 gsm bss network kpi (mos) optimization manual
01 gsm bss network kpi (mos) optimization manual
 
Lte irat-troubleshooting-guide
Lte irat-troubleshooting-guideLte irat-troubleshooting-guide
Lte irat-troubleshooting-guide
 
WCDMA Based Events
WCDMA Based EventsWCDMA Based Events
WCDMA Based Events
 
04 gsm bss network kpi (tch call drop rate) optimization manual
04 gsm bss network kpi (tch call drop rate) optimization manual04 gsm bss network kpi (tch call drop rate) optimization manual
04 gsm bss network kpi (tch call drop rate) optimization manual
 
2G optimization_with_optima
2G optimization_with_optima2G optimization_with_optima
2G optimization_with_optima
 
2 g and 3g kpi improvement by parameter optimization (nsn, ericsson, huawei) ...
2 g and 3g kpi improvement by parameter optimization (nsn, ericsson, huawei) ...2 g and 3g kpi improvement by parameter optimization (nsn, ericsson, huawei) ...
2 g and 3g kpi improvement by parameter optimization (nsn, ericsson, huawei) ...
 
Huawei parameter strategy v1.4 1st dec
Huawei parameter strategy v1.4  1st decHuawei parameter strategy v1.4  1st dec
Huawei parameter strategy v1.4 1st dec
 
13 gsm bss network kpi (network interference) optimization manual[1].doc
13 gsm bss network kpi (network interference) optimization manual[1].doc13 gsm bss network kpi (network interference) optimization manual[1].doc
13 gsm bss network kpi (network interference) optimization manual[1].doc
 
Optimization guidelines accessibility-ericsson-rev01
Optimization guidelines accessibility-ericsson-rev01Optimization guidelines accessibility-ericsson-rev01
Optimization guidelines accessibility-ericsson-rev01
 
Ericsson optimization opti
Ericsson optimization optiEricsson optimization opti
Ericsson optimization opti
 
Lte capacity monitoring
Lte capacity monitoringLte capacity monitoring
Lte capacity monitoring
 
10 gsm bss network kpi (uplink downlink balance) optimization manual[1].doc
10 gsm bss network kpi (uplink downlink balance) optimization manual[1].doc10 gsm bss network kpi (uplink downlink balance) optimization manual[1].doc
10 gsm bss network kpi (uplink downlink balance) optimization manual[1].doc
 
422738668-LTE-Downlink-Throughput-Optimization-Based-on-Performance-Data [Rep...
422738668-LTE-Downlink-Throughput-Optimization-Based-on-Performance-Data [Rep...422738668-LTE-Downlink-Throughput-Optimization-Based-on-Performance-Data [Rep...
422738668-LTE-Downlink-Throughput-Optimization-Based-on-Performance-Data [Rep...
 
134170437 directed-retry-decision-libre
134170437 directed-retry-decision-libre134170437 directed-retry-decision-libre
134170437 directed-retry-decision-libre
 
Gsm bss-network-kpi-handover-success-rate-optimization-manual(HSR)
Gsm bss-network-kpi-handover-success-rate-optimization-manual(HSR)Gsm bss-network-kpi-handover-success-rate-optimization-manual(HSR)
Gsm bss-network-kpi-handover-success-rate-optimization-manual(HSR)
 
2 g dt and mapinfo
2 g dt and mapinfo2 g dt and mapinfo
2 g dt and mapinfo
 
zte umts-cs-call-drop-analysis-guide-zte
zte umts-cs-call-drop-analysis-guide-ztezte umts-cs-call-drop-analysis-guide-zte
zte umts-cs-call-drop-analysis-guide-zte
 
2 drive test analysis ver1
2 drive test analysis ver12 drive test analysis ver1
2 drive test analysis ver1
 
Part 3 optimization 3G
Part 3 optimization 3GPart 3 optimization 3G
Part 3 optimization 3G
 

Viewers also liked

2 g training optimization
2 g training optimization2 g training optimization
2 g training optimizationAhmed Gad
 
52 gsm bss network performance ps kpi (downlink tbf establishment success rat...
52 gsm bss network performance ps kpi (downlink tbf establishment success rat...52 gsm bss network performance ps kpi (downlink tbf establishment success rat...
52 gsm bss network performance ps kpi (downlink tbf establishment success rat...tharinduwije
 
53 gsm bss network ps kpi (success rate of uplink tbf establishments) optimiz...
53 gsm bss network ps kpi (success rate of uplink tbf establishments) optimiz...53 gsm bss network ps kpi (success rate of uplink tbf establishments) optimiz...
53 gsm bss network ps kpi (success rate of uplink tbf establishments) optimiz...tharinduwije
 
02 gsm bss network kpi (sdcch call drop rate) optimization manual
02 gsm bss network kpi (sdcch call drop rate) optimization manual02 gsm bss network kpi (sdcch call drop rate) optimization manual
02 gsm bss network kpi (sdcch call drop rate) optimization manualtharinduwije
 
14 gsm bss network kpi (call setup time) optimization manual[1].doc
14 gsm bss network kpi (call setup time) optimization manual[1].doc14 gsm bss network kpi (call setup time) optimization manual[1].doc
14 gsm bss network kpi (call setup time) optimization manual[1].doctharinduwije
 
Nokia kpi and_core_optimization
Nokia kpi and_core_optimizationNokia kpi and_core_optimization
Nokia kpi and_core_optimizationdebasish goswami
 
Kpi analysis
Kpi analysisKpi analysis
Kpi analysisavneesh7
 
09 gsm bss network kpi (handover success rate) optimization manual
09 gsm bss network kpi (handover success rate) optimization manual09 gsm bss network kpi (handover success rate) optimization manual
09 gsm bss network kpi (handover success rate) optimization manualtharinduwije
 
Improve tbf drop
Improve tbf dropImprove tbf drop
Improve tbf dropFadi Hasem
 
Optimization technical introduction version1.011
Optimization technical introduction version1.011Optimization technical introduction version1.011
Optimization technical introduction version1.011phemmopower
 
50 gsm bss network ps kpi (download rate) optimization manual[1].doc
50 gsm bss network ps kpi (download rate) optimization manual[1].doc50 gsm bss network ps kpi (download rate) optimization manual[1].doc
50 gsm bss network ps kpi (download rate) optimization manual[1].doctharinduwije
 
08 gsm bss network kpi (immediate assignment success rate) optimization manual
08 gsm bss network kpi (immediate assignment success rate) optimization manual08 gsm bss network kpi (immediate assignment success rate) optimization manual
08 gsm bss network kpi (immediate assignment success rate) optimization manualtharinduwije
 
Dt notes part 2
Dt notes part 2Dt notes part 2
Dt notes part 2syedusama7
 
07 gsm bss network kpi (call setup success rate) optimization manual
07 gsm bss network kpi (call setup success rate) optimization manual07 gsm bss network kpi (call setup success rate) optimization manual
07 gsm bss network kpi (call setup success rate) optimization manualtharinduwije
 
Gsm bss-network-kpi-tch-call-drop-rate-optimization-manual(cdr)
Gsm bss-network-kpi-tch-call-drop-rate-optimization-manual(cdr)Gsm bss-network-kpi-tch-call-drop-rate-optimization-manual(cdr)
Gsm bss-network-kpi-tch-call-drop-rate-optimization-manual(cdr)Ayann Khan
 
16 gsm bss network kpi (inter rat handover success rate) optimization manual[...
16 gsm bss network kpi (inter rat handover success rate) optimization manual[...16 gsm bss network kpi (inter rat handover success rate) optimization manual[...
16 gsm bss network kpi (inter rat handover success rate) optimization manual[...tharinduwije
 

Viewers also liked (18)

2 g training optimization
2 g training optimization2 g training optimization
2 g training optimization
 
52 gsm bss network performance ps kpi (downlink tbf establishment success rat...
52 gsm bss network performance ps kpi (downlink tbf establishment success rat...52 gsm bss network performance ps kpi (downlink tbf establishment success rat...
52 gsm bss network performance ps kpi (downlink tbf establishment success rat...
 
53 gsm bss network ps kpi (success rate of uplink tbf establishments) optimiz...
53 gsm bss network ps kpi (success rate of uplink tbf establishments) optimiz...53 gsm bss network ps kpi (success rate of uplink tbf establishments) optimiz...
53 gsm bss network ps kpi (success rate of uplink tbf establishments) optimiz...
 
Gsm kpi
Gsm kpiGsm kpi
Gsm kpi
 
02 gsm bss network kpi (sdcch call drop rate) optimization manual
02 gsm bss network kpi (sdcch call drop rate) optimization manual02 gsm bss network kpi (sdcch call drop rate) optimization manual
02 gsm bss network kpi (sdcch call drop rate) optimization manual
 
14 gsm bss network kpi (call setup time) optimization manual[1].doc
14 gsm bss network kpi (call setup time) optimization manual[1].doc14 gsm bss network kpi (call setup time) optimization manual[1].doc
14 gsm bss network kpi (call setup time) optimization manual[1].doc
 
Drive test learning
Drive test learningDrive test learning
Drive test learning
 
Nokia kpi and_core_optimization
Nokia kpi and_core_optimizationNokia kpi and_core_optimization
Nokia kpi and_core_optimization
 
Kpi analysis
Kpi analysisKpi analysis
Kpi analysis
 
09 gsm bss network kpi (handover success rate) optimization manual
09 gsm bss network kpi (handover success rate) optimization manual09 gsm bss network kpi (handover success rate) optimization manual
09 gsm bss network kpi (handover success rate) optimization manual
 
Improve tbf drop
Improve tbf dropImprove tbf drop
Improve tbf drop
 
Optimization technical introduction version1.011
Optimization technical introduction version1.011Optimization technical introduction version1.011
Optimization technical introduction version1.011
 
50 gsm bss network ps kpi (download rate) optimization manual[1].doc
50 gsm bss network ps kpi (download rate) optimization manual[1].doc50 gsm bss network ps kpi (download rate) optimization manual[1].doc
50 gsm bss network ps kpi (download rate) optimization manual[1].doc
 
08 gsm bss network kpi (immediate assignment success rate) optimization manual
08 gsm bss network kpi (immediate assignment success rate) optimization manual08 gsm bss network kpi (immediate assignment success rate) optimization manual
08 gsm bss network kpi (immediate assignment success rate) optimization manual
 
Dt notes part 2
Dt notes part 2Dt notes part 2
Dt notes part 2
 
07 gsm bss network kpi (call setup success rate) optimization manual
07 gsm bss network kpi (call setup success rate) optimization manual07 gsm bss network kpi (call setup success rate) optimization manual
07 gsm bss network kpi (call setup success rate) optimization manual
 
Gsm bss-network-kpi-tch-call-drop-rate-optimization-manual(cdr)
Gsm bss-network-kpi-tch-call-drop-rate-optimization-manual(cdr)Gsm bss-network-kpi-tch-call-drop-rate-optimization-manual(cdr)
Gsm bss-network-kpi-tch-call-drop-rate-optimization-manual(cdr)
 
16 gsm bss network kpi (inter rat handover success rate) optimization manual[...
16 gsm bss network kpi (inter rat handover success rate) optimization manual[...16 gsm bss network kpi (inter rat handover success rate) optimization manual[...
16 gsm bss network kpi (inter rat handover success rate) optimization manual[...
 

Similar to 15 gsm bss network kpi (rx quality) optimization manual[1].doc

Neal-DeignReport
Neal-DeignReportNeal-DeignReport
Neal-DeignReportNeal Derman
 
2 g planning-optimization-part-5
2 g planning-optimization-part-52 g planning-optimization-part-5
2 g planning-optimization-part-5Rizwan Javed
 
Wcdma radio-network-optimization-guide
Wcdma radio-network-optimization-guideWcdma radio-network-optimization-guide
Wcdma radio-network-optimization-guideDobrin Dobrev
 
Optimisation process guide
Optimisation process guideOptimisation process guide
Optimisation process guidekillerkitties
 
123589029 gprs-tbf-calculation
123589029 gprs-tbf-calculation123589029 gprs-tbf-calculation
123589029 gprs-tbf-calculationAchmad Salsabil
 
Gsm bss-network-kpi-call-setup-success-rate-optimization-manual(cssr)
Gsm bss-network-kpi-call-setup-success-rate-optimization-manual(cssr)Gsm bss-network-kpi-call-setup-success-rate-optimization-manual(cssr)
Gsm bss-network-kpi-call-setup-success-rate-optimization-manual(cssr)Ayann Khan
 
01 networkparameter-110906050044-phpapp02
01 networkparameter-110906050044-phpapp0201 networkparameter-110906050044-phpapp02
01 networkparameter-110906050044-phpapp02syafri djalilan
 
Wcdma Rno Handover Algorithm Analysis And Parameter Configurtaion Guidance 20...
Wcdma Rno Handover Algorithm Analysis And Parameter Configurtaion Guidance 20...Wcdma Rno Handover Algorithm Analysis And Parameter Configurtaion Guidance 20...
Wcdma Rno Handover Algorithm Analysis And Parameter Configurtaion Guidance 20...guest42b2673
 
IRJET- Securing the Reliable Connectivity among Wireless Body Area Networks w...
IRJET- Securing the Reliable Connectivity among Wireless Body Area Networks w...IRJET- Securing the Reliable Connectivity among Wireless Body Area Networks w...
IRJET- Securing the Reliable Connectivity among Wireless Body Area Networks w...IRJET Journal
 
1. wcdma rno paging problem analysis guidance 20041101-a-1.0
1. wcdma rno paging problem analysis guidance 20041101-a-1.01. wcdma rno paging problem analysis guidance 20041101-a-1.0
1. wcdma rno paging problem analysis guidance 20041101-a-1.0mounkid el afendi
 
S.r0141-0_v1.0_m2_m_study_report
  S.r0141-0_v1.0_m2_m_study_report  S.r0141-0_v1.0_m2_m_study_report
S.r0141-0_v1.0_m2_m_study_reportjoehsmith
 
Machine-Type-Communication in 5G Cellular System-Li_Yue_PhD_2018.pdf
Machine-Type-Communication in 5G Cellular System-Li_Yue_PhD_2018.pdfMachine-Type-Communication in 5G Cellular System-Li_Yue_PhD_2018.pdf
Machine-Type-Communication in 5G Cellular System-Li_Yue_PhD_2018.pdfYAAKOVSOLOMON1
 
Nuruddin Ahmed (063429056)
Nuruddin Ahmed (063429056)Nuruddin Ahmed (063429056)
Nuruddin Ahmed (063429056)mashiur
 
Distributed Traffic management framework
Distributed Traffic management frameworkDistributed Traffic management framework
Distributed Traffic management frameworkSaurabh Nambiar
 

Similar to 15 gsm bss network kpi (rx quality) optimization manual[1].doc (20)

Neal-DeignReport
Neal-DeignReportNeal-DeignReport
Neal-DeignReport
 
Gsm hosr
Gsm hosrGsm hosr
Gsm hosr
 
Csdap
CsdapCsdap
Csdap
 
2 g planning-optimization-part-5
2 g planning-optimization-part-52 g planning-optimization-part-5
2 g planning-optimization-part-5
 
61607619
6160761961607619
61607619
 
Wcdma radio-network-optimization-guide
Wcdma radio-network-optimization-guideWcdma radio-network-optimization-guide
Wcdma radio-network-optimization-guide
 
Optimisation process guide
Optimisation process guideOptimisation process guide
Optimisation process guide
 
123589029 gprs-tbf-calculation
123589029 gprs-tbf-calculation123589029 gprs-tbf-calculation
123589029 gprs-tbf-calculation
 
Gsm bss-network-kpi-call-setup-success-rate-optimization-manual(cssr)
Gsm bss-network-kpi-call-setup-success-rate-optimization-manual(cssr)Gsm bss-network-kpi-call-setup-success-rate-optimization-manual(cssr)
Gsm bss-network-kpi-call-setup-success-rate-optimization-manual(cssr)
 
01 networkparameter-110906050044-phpapp02
01 networkparameter-110906050044-phpapp0201 networkparameter-110906050044-phpapp02
01 networkparameter-110906050044-phpapp02
 
Wcdma Rno Handover Algorithm Analysis And Parameter Configurtaion Guidance 20...
Wcdma Rno Handover Algorithm Analysis And Parameter Configurtaion Guidance 20...Wcdma Rno Handover Algorithm Analysis And Parameter Configurtaion Guidance 20...
Wcdma Rno Handover Algorithm Analysis And Parameter Configurtaion Guidance 20...
 
3 gpp tr 23.907v1.2.0
3 gpp tr 23.907v1.2.03 gpp tr 23.907v1.2.0
3 gpp tr 23.907v1.2.0
 
IRJET- Securing the Reliable Connectivity among Wireless Body Area Networks w...
IRJET- Securing the Reliable Connectivity among Wireless Body Area Networks w...IRJET- Securing the Reliable Connectivity among Wireless Body Area Networks w...
IRJET- Securing the Reliable Connectivity among Wireless Body Area Networks w...
 
1. wcdma rno paging problem analysis guidance 20041101-a-1.0
1. wcdma rno paging problem analysis guidance 20041101-a-1.01. wcdma rno paging problem analysis guidance 20041101-a-1.0
1. wcdma rno paging problem analysis guidance 20041101-a-1.0
 
Paging analysis
Paging analysisPaging analysis
Paging analysis
 
S.r0141-0_v1.0_m2_m_study_report
  S.r0141-0_v1.0_m2_m_study_report  S.r0141-0_v1.0_m2_m_study_report
S.r0141-0_v1.0_m2_m_study_report
 
Machine-Type-Communication in 5G Cellular System-Li_Yue_PhD_2018.pdf
Machine-Type-Communication in 5G Cellular System-Li_Yue_PhD_2018.pdfMachine-Type-Communication in 5G Cellular System-Li_Yue_PhD_2018.pdf
Machine-Type-Communication in 5G Cellular System-Li_Yue_PhD_2018.pdf
 
Nuruddin Ahmed (063429056)
Nuruddin Ahmed (063429056)Nuruddin Ahmed (063429056)
Nuruddin Ahmed (063429056)
 
Distributed Traffic management framework
Distributed Traffic management frameworkDistributed Traffic management framework
Distributed Traffic management framework
 
ZTE-umts-congestion-control-feature-guide-v8-5-2011312
ZTE-umts-congestion-control-feature-guide-v8-5-2011312ZTE-umts-congestion-control-feature-guide-v8-5-2011312
ZTE-umts-congestion-control-feature-guide-v8-5-2011312
 

More from tharinduwije

Lte ue initial attach & detach from networkx
Lte ue initial attach & detach from networkxLte ue initial attach & detach from networkx
Lte ue initial attach & detach from networkxtharinduwije
 
Lte system signaling procedures
Lte system signaling proceduresLte system signaling procedures
Lte system signaling procedurestharinduwije
 
Lte radio network planning huawei
Lte radio network planning huaweiLte radio network planning huawei
Lte radio network planning huaweitharinduwije
 
Lte radio netwok planning
Lte   radio netwok planning Lte   radio netwok planning
Lte radio netwok planning tharinduwije
 
Hw lte rf-optimization-guide
Hw lte rf-optimization-guideHw lte rf-optimization-guide
Hw lte rf-optimization-guidetharinduwije
 
E nodeb kpi reference(v100r005c00 02)(pdf)-en
E nodeb kpi reference(v100r005c00 02)(pdf)-enE nodeb kpi reference(v100r005c00 02)(pdf)-en
E nodeb kpi reference(v100r005c00 02)(pdf)-entharinduwije
 
54 gsm bss network performance ps kpi (rtt delay) optimization manual[1].doc
54 gsm bss network performance ps kpi (rtt delay) optimization manual[1].doc54 gsm bss network performance ps kpi (rtt delay) optimization manual[1].doc
54 gsm bss network performance ps kpi (rtt delay) optimization manual[1].doctharinduwije
 
51 gsm bss network performance ps kpi (upload rate) optimization manual[1].doc
51 gsm bss network performance ps kpi (upload rate) optimization manual[1].doc51 gsm bss network performance ps kpi (upload rate) optimization manual[1].doc
51 gsm bss network performance ps kpi (upload rate) optimization manual[1].doctharinduwije
 
11 gsm bss network kpi (paging success rate) optimization manual
11 gsm bss network kpi (paging success rate) optimization manual11 gsm bss network kpi (paging success rate) optimization manual
11 gsm bss network kpi (paging success rate) optimization manualtharinduwije
 
06 gsm bss network kpi (network coverage) optimization manual
06 gsm bss network kpi (network coverage) optimization manual06 gsm bss network kpi (network coverage) optimization manual
06 gsm bss network kpi (network coverage) optimization manualtharinduwije
 
Dcr optimization after swap
Dcr optimization after swapDcr optimization after swap
Dcr optimization after swaptharinduwije
 

More from tharinduwije (13)

Lte ue initial attach & detach from networkx
Lte ue initial attach & detach from networkxLte ue initial attach & detach from networkx
Lte ue initial attach & detach from networkx
 
Lte system signaling procedures
Lte system signaling proceduresLte system signaling procedures
Lte system signaling procedures
 
Lte radio network planning huawei
Lte radio network planning huaweiLte radio network planning huawei
Lte radio network planning huawei
 
Lte in bullets
Lte in bulletsLte in bullets
Lte in bullets
 
Lte radio netwok planning
Lte   radio netwok planning Lte   radio netwok planning
Lte radio netwok planning
 
Hw lte rf-optimization-guide
Hw lte rf-optimization-guideHw lte rf-optimization-guide
Hw lte rf-optimization-guide
 
E nodeb kpi reference(v100r005c00 02)(pdf)-en
E nodeb kpi reference(v100r005c00 02)(pdf)-enE nodeb kpi reference(v100r005c00 02)(pdf)-en
E nodeb kpi reference(v100r005c00 02)(pdf)-en
 
Lte optimization
Lte optimizationLte optimization
Lte optimization
 
54 gsm bss network performance ps kpi (rtt delay) optimization manual[1].doc
54 gsm bss network performance ps kpi (rtt delay) optimization manual[1].doc54 gsm bss network performance ps kpi (rtt delay) optimization manual[1].doc
54 gsm bss network performance ps kpi (rtt delay) optimization manual[1].doc
 
51 gsm bss network performance ps kpi (upload rate) optimization manual[1].doc
51 gsm bss network performance ps kpi (upload rate) optimization manual[1].doc51 gsm bss network performance ps kpi (upload rate) optimization manual[1].doc
51 gsm bss network performance ps kpi (upload rate) optimization manual[1].doc
 
11 gsm bss network kpi (paging success rate) optimization manual
11 gsm bss network kpi (paging success rate) optimization manual11 gsm bss network kpi (paging success rate) optimization manual
11 gsm bss network kpi (paging success rate) optimization manual
 
06 gsm bss network kpi (network coverage) optimization manual
06 gsm bss network kpi (network coverage) optimization manual06 gsm bss network kpi (network coverage) optimization manual
06 gsm bss network kpi (network coverage) optimization manual
 
Dcr optimization after swap
Dcr optimization after swapDcr optimization after swap
Dcr optimization after swap
 

Recently uploaded

Eversendai - HSE Performance Management Systems-R1.pptx
Eversendai - HSE Performance Management Systems-R1.pptxEversendai - HSE Performance Management Systems-R1.pptx
Eversendai - HSE Performance Management Systems-R1.pptxADILRASHID54
 
POWER SECTOR IN INDIA.pptx
POWER SECTOR IN INDIA.pptxPOWER SECTOR IN INDIA.pptx
POWER SECTOR IN INDIA.pptxArunima Banerjee
 
Introduction communication assignmen.pdf
Introduction communication assignmen.pdfIntroduction communication assignmen.pdf
Introduction communication assignmen.pdfKannigaSaraswathyM
 
Pre-assessment & Data Sheet presentation template - 2023.pptx
Pre-assessment & Data Sheet presentation template - 2023.pptxPre-assessment & Data Sheet presentation template - 2023.pptx
Pre-assessment & Data Sheet presentation template - 2023.pptxssuserc79a6f
 
Economic of Chapter 02 Presentation.pptx
Economic of Chapter 02 Presentation.pptxEconomic of Chapter 02 Presentation.pptx
Economic of Chapter 02 Presentation.pptxManahilAftab4
 
ELH – 3.1: ADVANCED DIGITAL COMMUNICATION UNIT – I Digital modulation techniq...
ELH – 3.1: ADVANCED DIGITAL COMMUNICATION UNIT – I Digital modulation techniq...ELH – 3.1: ADVANCED DIGITAL COMMUNICATION UNIT – I Digital modulation techniq...
ELH – 3.1: ADVANCED DIGITAL COMMUNICATION UNIT – I Digital modulation techniq...Kuvempu University
 
my goal is place in mnc's companies and got good salary
my goal is place in mnc's companies and got good salarymy goal is place in mnc's companies and got good salary
my goal is place in mnc's companies and got good salarymonoarul2004
 
BHUSHAN STEEL.pdf BROCHURE FOR STEEL TABLE
BHUSHAN STEEL.pdf BROCHURE FOR STEEL TABLEBHUSHAN STEEL.pdf BROCHURE FOR STEEL TABLE
BHUSHAN STEEL.pdf BROCHURE FOR STEEL TABLEKuberBhusal1
 
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
 
Bresenham line-drawing-algorithm By S L Sonawane.pdf
Bresenham line-drawing-algorithm By S L Sonawane.pdfBresenham line-drawing-algorithm By S L Sonawane.pdf
Bresenham line-drawing-algorithm By S L Sonawane.pdfSujataSonawane11
 
Metrology Measurements and All units PPT
Metrology Measurements and  All units PPTMetrology Measurements and  All units PPT
Metrology Measurements and All units PPTdinesh babu
 
Fundamentals of Data Structure_Unit I.pptx
Fundamentals of Data Structure_Unit I.pptxFundamentals of Data Structure_Unit I.pptx
Fundamentals of Data Structure_Unit I.pptxDr. Madhuri Jawale
 
Searching and Sorting Unit II Part I.pptx
Searching and Sorting Unit II Part I.pptxSearching and Sorting Unit II Part I.pptx
Searching and Sorting Unit II Part I.pptxDr. Madhuri Jawale
 
Documento 50 - 1-120 - 51+52 borrador.pdf
Documento 50 - 1-120 - 51+52 borrador.pdfDocumento 50 - 1-120 - 51+52 borrador.pdf
Documento 50 - 1-120 - 51+52 borrador.pdfFRANCISCOJUSTOSIERRA
 
Introduction to WordPress Custom Gutenberg Blocks
Introduction to WordPress Custom Gutenberg BlocksIntroduction to WordPress Custom Gutenberg Blocks
Introduction to WordPress Custom Gutenberg Blockskarthickmurugan02
 
Python Workshop Day - 03.pptx
Python Workshop Day - 03.pptxPython Workshop Day - 03.pptx
Python Workshop Day - 03.pptxShivanshSeth6
 
Presentation of Helmet Detection Using Machine Learning.pptx
Presentation of Helmet Detection Using Machine Learning.pptxPresentation of Helmet Detection Using Machine Learning.pptx
Presentation of Helmet Detection Using Machine Learning.pptxasmitaTele2
 

Recently uploaded (20)

Eversendai - HSE Performance Management Systems-R1.pptx
Eversendai - HSE Performance Management Systems-R1.pptxEversendai - HSE Performance Management Systems-R1.pptx
Eversendai - HSE Performance Management Systems-R1.pptx
 
POWER SECTOR IN INDIA.pptx
POWER SECTOR IN INDIA.pptxPOWER SECTOR IN INDIA.pptx
POWER SECTOR IN INDIA.pptx
 
Power System - Types of Power Plants overview
Power System - Types of Power Plants  overviewPower System - Types of Power Plants  overview
Power System - Types of Power Plants overview
 
Introduction communication assignmen.pdf
Introduction communication assignmen.pdfIntroduction communication assignmen.pdf
Introduction communication assignmen.pdf
 
Pre-assessment & Data Sheet presentation template - 2023.pptx
Pre-assessment & Data Sheet presentation template - 2023.pptxPre-assessment & Data Sheet presentation template - 2023.pptx
Pre-assessment & Data Sheet presentation template - 2023.pptx
 
Economic of Chapter 02 Presentation.pptx
Economic of Chapter 02 Presentation.pptxEconomic of Chapter 02 Presentation.pptx
Economic of Chapter 02 Presentation.pptx
 
ELH – 3.1: ADVANCED DIGITAL COMMUNICATION UNIT – I Digital modulation techniq...
ELH – 3.1: ADVANCED DIGITAL COMMUNICATION UNIT – I Digital modulation techniq...ELH – 3.1: ADVANCED DIGITAL COMMUNICATION UNIT – I Digital modulation techniq...
ELH – 3.1: ADVANCED DIGITAL COMMUNICATION UNIT – I Digital modulation techniq...
 
my goal is place in mnc's companies and got good salary
my goal is place in mnc's companies and got good salarymy goal is place in mnc's companies and got good salary
my goal is place in mnc's companies and got good salary
 
BHUSHAN STEEL.pdf BROCHURE FOR STEEL TABLE
BHUSHAN STEEL.pdf BROCHURE FOR STEEL TABLEBHUSHAN STEEL.pdf BROCHURE FOR STEEL TABLE
BHUSHAN STEEL.pdf BROCHURE FOR STEEL TABLE
 
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...
 
Bresenham line-drawing-algorithm By S L Sonawane.pdf
Bresenham line-drawing-algorithm By S L Sonawane.pdfBresenham line-drawing-algorithm By S L Sonawane.pdf
Bresenham line-drawing-algorithm By S L Sonawane.pdf
 
Metrology Measurements and All units PPT
Metrology Measurements and  All units PPTMetrology Measurements and  All units PPT
Metrology Measurements and All units PPT
 
Fundamentals of Data Structure_Unit I.pptx
Fundamentals of Data Structure_Unit I.pptxFundamentals of Data Structure_Unit I.pptx
Fundamentals of Data Structure_Unit I.pptx
 
Searching and Sorting Unit II Part I.pptx
Searching and Sorting Unit II Part I.pptxSearching and Sorting Unit II Part I.pptx
Searching and Sorting Unit II Part I.pptx
 
Solar PPT.pdf
Solar PPT.pdfSolar PPT.pdf
Solar PPT.pdf
 
Documento 50 - 1-120 - 51+52 borrador.pdf
Documento 50 - 1-120 - 51+52 borrador.pdfDocumento 50 - 1-120 - 51+52 borrador.pdf
Documento 50 - 1-120 - 51+52 borrador.pdf
 
Introduction to WordPress Custom Gutenberg Blocks
Introduction to WordPress Custom Gutenberg BlocksIntroduction to WordPress Custom Gutenberg Blocks
Introduction to WordPress Custom Gutenberg Blocks
 
Python Workshop Day - 03.pptx
Python Workshop Day - 03.pptxPython Workshop Day - 03.pptx
Python Workshop Day - 03.pptx
 
Mobile Hacking Unit 1
Mobile Hacking Unit 1Mobile Hacking Unit 1
Mobile Hacking Unit 1
 
Presentation of Helmet Detection Using Machine Learning.pptx
Presentation of Helmet Detection Using Machine Learning.pptxPresentation of Helmet Detection Using Machine Learning.pptx
Presentation of Helmet Detection Using Machine Learning.pptx
 

15 gsm bss network kpi (rx quality) optimization manual[1].doc

  • 1. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL Product name Confidentiality level GSM BSS INTERNAL Product version Total 17 pages V00R01 GSM BSS Network KPI (RxQuality) Optimization Manual (For internal use only) Prepared by GSM&UMTS Network Performance Research Department Dong Xuan Date 2009-01-05 Reviewed by Date yyyy-mm-dd Reviewed by Date yyyy-mm-dd Granted by Date yyyy-mm-dd Huawei Technologies Co., Ltd. All rights reserved 2014-06-18 Huawei Confidential Page 1 of 18
  • 2. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL Revision Record Date Revision version Change Description Author 2009-01-05 1.0 Draft completed. Dong Xuan 2014-06-18 Huawei Confidential Page 2 of 18
  • 3. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL GSM BSS Network KPI (RxQuality) Optimization Manual Keyword: RxQuality Abstract: This document analyzes factors that affect the downlink RxQuality on the BSS side. Based on the analysis, some methods are elaborated to quickly improve the downlink RxQuality. The Um quality is also to be improved to avoid poor RxQuality failure, call drop, and frame deletion resulted from the voice decoding decrease in the call. Some measures for optimizing this KPI are provided in this document to help field engineers address quality problems. This document targets at optimizing network KPIs and improving network quality so as to make sound preparations for the final network delivery. Keyword: RxQuality (Downlink) List of abbreviations: Abbreviations Full spelling 2014-06-18 Huawei Confidential Page 3 of 18
  • 4. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL Contents 1 Basic Principle.........................................................................................................6 1.1 Definition......................................................................................................................................6 1.2 Theory Introduction......................................................................................................................6 1.3 Recommended Formula................................................................................................................6 1.4 Signaling Procedure and Statistical Point.....................................................................................6 2 Influencing Factors................................................................................................7 3 Analysis Process and Optimization Methods...................................................8 3.1 Analysis Process............................................................................................................................8 3.1.1 Procedures for RxQuality Problem Location..........................................................................8 3.2 RxQuality Optimization Methods.................................................................................................9 3.2.1 Poor RxQuality on Entire Network.......................................................................................10 3.2.1.1 Processing Methods............................................................................................................10 3.2.1.2 Traffic Measurement Analysis............................................................................................11 3.2.1.3 Alarm Analysis....................................................................................................................11 3.2.2 Passive Intermodulation........................................................................................................11 3.2.2.1 Processing Methods............................................................................................................11 3.2.2.2 Traffic Measurement Analysis............................................................................................12 3.2.2.3 Alarm Analysis....................................................................................................................12 3.2.3 Intra-Network Interference...................................................................................................12 3.2.3.1 Processing Methods............................................................................................................12 3.2.3.2 Traffic Measurement Analysis............................................................................................12 3.2.3.3 Alarm Analysis....................................................................................................................13 3.2.4 Inter-Network Interference...................................................................................................13 3.2.4.1 Processing Methods............................................................................................................13 3.2.4.2 Traffic Measurement Analysis............................................................................................13 3.2.4.3 Alarm Analysis....................................................................................................................13 3.2.5 Hardware Fault......................................................................................................................13 3.2.5.1 Processing Methods............................................................................................................13 3.2.5.2 Traffic Measurement Analysis............................................................................................14 3.2.5.3 Alarm Analysis....................................................................................................................14 2014-06-18 Huawei Confidential Page 4 of 18
  • 5. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL 3.2.6 Huawei Anti-Interference Technology..................................................................................15 3.2.6.1 Processing Methods............................................................................................................15 3.2.6.2 Traffic Measurement Analysis............................................................................................16 3.2.6.3 Alarm Analysis....................................................................................................................16 3.2.7 Test Tool and Recommendations..........................................................................................16 3.2.8 Recommendations for Configuration and Test.....................................................................16 4 RxQuality Optimization Cases..........................................................................17 4.1 Low RxQuality in Kenya............................................................................................................17 4.2 Enabling Idle Burst Causing Interference Increase and Low RxQuality....................................17 5 Information Feedback.........................................................................................18 5.1 TEMS Test Log of Faulty Cell....................................................................................................18 5.2 Requirements for Existing Network Configuration Data and Traffic Measurement..................18 2014-06-18 Huawei Confidential Page 5 of 18
  • 6. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL 1 Basic Principle 1.1 Definition The RxQuality is an informal KPI. It identifies the Bit Error Rate (BER) on the Um interface based on the proportions of downlink RxQuality at various levels. The RxQuality can reflect the entire network quality. When the RxQuality is good and no major bug exists in voice processing, you can infer that the voice quality on the network is good. 1.2 Theory Introduction In theory, two measures can be taken to improve the RxQuality. One is to improve the RxQuality and demodulation performance (decoding the BER) with the same signals. The other is to decrease interference. In practice, the latter is an optimization method for improving the RxQuality. None. 1.3 Recommended Formula None. 1.4 Signaling Procedure and Statistical Point None. 2014-06-18 Huawei Confidential Page 6 of 18
  • 7. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL 2 Influencing Factors According to cases and experiences in solving this problem, the following factors affect the downlink RxQuality:  Network planning  Data configuration  Frequency planning  Coverage  Interference  Power control  Interference-Based Channel Assignment (IBCA)  UISS  ICC These preceding factors are described in Chapter 3. 2014-06-18 Huawei Confidential Page 7 of 18
  • 8. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL 3 Analysis Process and Optimization Methods This section aims to provide baseline recommendations for data configuration. In addition, it highlights some methods for improving the RxQuality on the premise that the project is clear of major problems and the coverage is good. 3.1 Analysis Process The RxQuality reflects the network quality from two perspectives. The first is TRX-based counters, and the second is drive test or customer complaints. The RxQuality is improved mainly by eliminating or reducing interference. The interference is eliminated through interference source investigation to reduce intermodulation, proper planning of network frequency, frequency hopping check, and replacement of aged RF hardware. The interference is reduced by decreasing the transmit power of RF components while ensuring the quality, and intelligently choosing the frequencies or timeslots with little interference for channel assignment. The quality and capacity are contradictory. When the BTS configuration exceeds a specific limit, the quality is affected. 3.1.1 Procedures for RxQuality Problem Location The common procedures for RxQuality problem location are described as follows: 2014-06-18 Huawei Confidential Page 8 of 18
  • 9. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL 3.2 RxQuality Optimization Methods The poor RxQuality may be caused by the following factors: 2014-06-18 Huawei Confidential Page 9 of 18
  • 10. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL Hardware transmission fault (faulty TRX and antenna system in combination mode)  Improper data configuration  Intra- network interference  Inter-network interference  Clock fault  Coverage and uplink-downlink imbalance  Improper power control settings When the RxQuality is poor, the reasons for poor RxQuality are classified in terms of the preceding factors. Then, the RxQuality is improved from two perspectives. Check whether the poor RxQuality occurs on the entire network or only in some cells or BTSs. If poor RxQuality occurs on the entire network, causes are investigated in terms of internal network interference and external network interference. If poor RxQuality only occurs in some cells or BTSs, the procedures in section 3.1are taken to investigate the causes. The RxQuality is improved by examining interference, modifying data configuration, replacing some hardware, cleaning feeder and jumper connectors, and replacing aged feeders. 3.2.1 Poor RxQuality on Entire Network According to statistics of traffic measurement counters, if the poor RxQuality occurs on the entire network, it cannot be optimized through optimization in only some cells or BTSs. You are advised to follow the procedures described in section 3.2.1.1. 3.2.1.1 Processing Methods For the poor RxQuality of the entire network, check the frequency planning. In scenarios of S4/4/4 or above with low band (5 MHz) and a certain frequency hopping (1x3), the noise floor of the entire network is high. In addition, the cell coverage is not well controlled in the network planning. The inter-cell coverage therefore causes co-channel and adjacent-channel frequency collisions. The interference is comparatively large, which causes poor RxQuality. On the network with non-synchronized frequency hopping in sequence, the continuous frequencies may cause continuous collisions, which may also affect the RxQuality. In summary, the poor RxQuality occurs in narrow band with large configurations. You are advised to take measures to control the coverage of each cell to avoid inter-cell coverage that may cause co-channel or adjacent- channel interference. The random frequency hopping instead is adopted to avoid low RxQuality. In the optimal solution, you need to decrease the BTS configuration and site distance or divide cells, and plan the network properly. Besides, on the network with high noise floor, the RxQuality can be greatly improved by reducing the network noise floor and interference through the 2014-06-18 Huawei Confidential Page 10 of 18
  • 11. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL power control. If the preceding adjustments still cannot solve the problem, the latest R&D results of the Performance Dept are applied. These R&D results include synchronization network, ICC technology, and IBCA. The RxQuality is improved without reducing the network capacity. The maximum RxQuality is not the ultimate aim of the network optimization. The ultimate goal is to enrich the customer experience according to different bandwidths, capacity requirements, traffic models, and network scenarios. 3.2.1.2 Traffic Measurement Analysis None. 3.2.1.3 Alarm Analysis None. 3.2.2 Passive Intermodulation 3.2.2.1 Processing Methods When two RF signals are transmitted to a nonlinear component, or transmitted through a discontinuous transmission medium, a series of new frequency components are generated. These frequency components satisfy the following formulas. Suppose the frequencies of these two signals are f1 and f2 (absolute frequencies). Fn = mf1 + nf2, and Fn = mf1 – nf2 The most common types are third-order, five-order, and seven-order intermodulations. The RxQuality of the system is affected when the intermodulation components are transmitted to the Rx band and the level exceeds a specific limit. The intermodulation interference is generated mainly because the frequency interval is short. In this case, the interference can be eliminated by increasing the cell frequency intervals. [m–n] = 1, m + n = x, in which x stands for x order. 2014-06-18 Huawei Confidential Page 11 of 18
  • 12. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL 3.2.2.2 Traffic Measurement Analysis None. 3.2.2.3 Alarm Analysis None. 3.2.3 Intra-Network Interference 3.2.3.1 Processing Methods The intra-network interference is classified into two categories: co-channel interference and adjacent-channel interference. The frequency reuse is adopted on the GSM network. When the frequency reuse radius of two cells in the same frequency or adjacent frequencies is improperly small, the co-channel or adjacent-channel interference is easy to generate. The following methods are used for addressing the intra-network interference. Check whether the frequency planning, especially the co-channel and adjacent-channel frequency reuse, is proper. Besides, the coverage of each cell is controlled in accordance with practical situations. It is important especially for the network with heavy traffic and less frequency resources to control the coverage and maintain proper co-channel and adjacent-channel frequency reuses. The data should be configured accurately. The proportions of inter-cell co- channel and adjacent-channel frequencies should be proper in the data configuration. The intra-network interference can be solved through frequency optimization, antenna adjustment, and coverage control. In addition, tools such as Nastar can be used for frequency optimization. Check the co-channel and adjacent- channel frequencies and recommended frequencies by entering engineering parameters. The frequencies with severe interference are replaced to greatly improve the RxQuality. 3.2.3.2 Traffic Measurement Analysis None. 2014-06-18 Huawei Confidential Page 12 of 18
  • 13. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL 3.2.3.3 Alarm Analysis None. 3.2.4 Inter-Network Interference 3.2.4.1 Processing Methods The inter-network interferences can be classified into the following three categories: Repeater interference: It can be solved by communication with repeater vendors. Inter-RAT interference: The filter is added to filter out interference. In addition to frequency modification, the co-site BTSs do not use the E-GSM frequencies. Besides, the gains of two antennas can be reduced by increasing the space between two antennas or antenna tilt. Security equipment interference: Information about the BTSs with interferences is collected. You are advised to replace the security equipment with the recommended Interference Unit (IU). 3.2.4.2 Traffic Measurement Analysis None. 3.2.4.3 Alarm Analysis None. 3.2.5 Hardware Fault 3.2.5.1 Processing Methods The interference caused by hardware fault is mostly due to the passive intermodulation interference. To solve this problem, multiple hardware operations are required. Due to frequency reuse in the network operation, difficult problem location, and multiply faulty cells, a special team is established to solve this problem quickly. 2014-06-18 Huawei Confidential Page 13 of 18
  • 14. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL The idle burst authentication is transmitted through the LMT. Check the data of interference band level 3 to level 5 according to the traffic measurement. Check whether the interference bands follow some rules and whether the interference bands are related to time, traffic, weather, and cell location. Check whether similar interference band problems used to occur. Finally, perform comprehensive analysis. If the interference band persists, the interference band is enhanced with the traffic increase, or the external BTS interference is excluded by replacing the frequencies, you can infer that it is internal BTS interference. Take the following measures: Check whether the TRX or Combining and Distribution Unit (CDU) fault causes the inter-network interference by blocking and replacing boards. Check whether the jumpers are connected to the cabinet top outlet and feeder properly. If the ports do not match, the front end circuit of the BTS may be unstable. In this case, the spontaneous vibrations may generate to bring interference to the internal bandwidth. Check whether the antenna system generates the passive intermodulation by disabling some TCH TRXs or exchanging antenna systems. In this case, you can determine whether the interference is caused by antenna intermodulation. The interference is eliminated mainly through RF optimization. For details, see the GSM Interference Analysis Guide. GSM I nt er f er ence Anal ysi s Gui de 020429- A- 1. 0. zi p 3.2.5.2 Traffic Measurement Analysis None. 3.2.5.3 Alarm Analysis Three types of alarms need to be observed: antenna alarm, TRX alarm, and BTS clock alarm. If any one of the following alarms is reported, see the BSS Alarm Reference for specific processing methods. Alarm ID and Name 4154 TRX main clock alarm 2014-06-18 Huawei Confidential Page 14 of 18
  • 15. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL 4156 TRX slave clock alarm 4184 TRX clock critical alarm 4708 Clock Reference Abnormal Alarm 4732 TMU clock critical alarm 4734 Master TMU clock alarm 4760 13M Maintenance Alarm 4102 LAPD Alarm 4104 TRX configuration Alarm 4108 Radio link critical Alarm 4114 TRX interior I/O alarm 4136 TRX Hardware alarm 4144 TRX VSWR alarm 4192 TRX communication alarm 4714 E1 Local Alarm 5286 CDU VSWR Level 1 Alarm 5284 CDU VSWR Level 2 Alarm 5326 Level 1 VSWR Alarm 5328 Level 2 VSWR Alarm 3.2.6 Huawei Anti-Interference Technology 3.2.6.1 Processing Methods Huawei has the following anti-interference technologies. These technologies facilitate the reduction in network interference and improvement in the RxQuality to enrich the end user experience. List of Huawei anti-interference technologies: UISS 2014-06-18 Huawei Confidential Page 15 of 18
  • 16. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL IBCA Flexible MAIO (FLEX MAIO) Power Control, DTX 3.2.6.2 Traffic Measurement Analysis None. 3.2.6.3 Alarm Analysis None. 3.2.7 Test Tool and Recommendations The TEMS that is accepted by the industry and widely used serves as the test tool. The drive test is required for the cell with low RxQuality. The low RxQuality in some cells or BTSs can be detected and solved by drive test. 3.2.8 Recommendations for Configuration and Test For network configurations, see the latest GSM BSC6000 Performance Parameter Baseline (V900R008) V2.0. The configurations are performed according to different scenarios. When the RxQuality is low, you need to check the data configuration that is greatly different from the parameter baseline. 2014-06-18 Huawei Confidential Page 16 of 18
  • 17. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL 4 RxQuality Optimization Cases 4.1 Low RxQuality in Kenya In Kenya, the configuration of existing network has multiple sites in S8/8/8 configuration, which is very large. The entire network uses 1*3 RF frequency hopping. The RxQuality is not satisfactory. According to check results, the existing network uses the latest BSC version. The power control parameters, however, are set according to second generation power control algorithm rather than the parameter configuration baselines. After the parameters are set by using the third generation power control algorithm, the proportion of RxQualtiy 0–3 is increased by 12% compared to that by using the second generation algorithm. 4.2 Enabling Idle Burst Causing Interference Increase and Low RxQuality After the site is swapped, the network quality is decreased by 3% to 4% according to the drive test results. The hardware, frequency planning, and inter-cell engineering are proper. The RxQuality is decreased by 2% to 3% compared with that of the existing network. Other KPIs are proper. According to analysis, after the idle bursts are enabled, they cannot be automatically disabled. In this case, the idle TRX timeslots are transmitted in full power, and the BER is increased, thus, the RxQuality deteriorates. When the idle burst is disabled manually, the Um quality of the entire network is greatly improved. The RxQuality is improved by 2%, which is almost the same as that of the original network. 2014-06-18 Huawei Confidential Page 17 of 18
  • 18. GSM BSS Network KPI (RxQuality) Optimization Manual INTERNAL 5 Information Feedback 5.1 TEMS Test Log of Faulty Cell The cell information table in .cel format of the TEMS test is sent back with the log. 5.2 Requirements for Existing Network Configuration Data and Traffic Measurement The latest data configuration and engineering parameter list on the network are specified. Provide the traffic measurement counters of continuous two days. The traffic measurement counters are described as follows: MR Measurement > Receive Quality Measurement per TRX MR Measurement > Interference Band Measurement per TRX 2014-06-18 Huawei Confidential Page 18 of 18