1. Project hammer d00219 Sub Cluster CA - SSO Celcom CA Project
Project hammer
d00219 Sub Cluster CA - SSO
© Ericsson AB 2016

2. PROJECT BAU MODERNIZATION
CONTENTS
SINR Analysis
CSFB Call Setup Time Analysis

3. D00219 CA-report – DT KPI overview – 4G
Celcom CA Project
D00219 CA-report – DT KPI overview – 4G
© Ericsson AB 2016

4. PROJECT BAU MODERNIZATION
SINR Analysis

5. D00219_DT KPI—4G DT KPI lte sinr
Celcom CA Project
D00219_DT KPI—4G DT KPI lte sinr
Summary:
3 areas are identified with bad SINR issue, circled as the left.
Area1
Area2
Area3 PA
Comments 1
Bad SINR due to no domain cell 2 3
© Ericsson AB 2016

6. D00219_DT KPI—4G DT KPI lte sinr 1/3
Celcom CA Project
D00219_DT KPI—4G DT KPI lte sinr 1/3
Area 1:
Analysis:
Bad SINR at this area is due to no domain cell.
Area is 1100m away from nearest site EL20130, while the signal is blocked by dense trees.
Due to the demands are not high at this area, throughput is good in this area indicating that users’ experience are not influenced.
LTE SINR
Footprint for EL20130_8_2
Area1
Area1
signal is blocked by trees
Site view from EL20130_8_2
1.1KM
DL Throughput
© Ericsson AB 2016

7. D00219_DT KPI—4G DT KPI lte sinr 2/3
Celcom CA Project
D00219_DT KPI—4G DT KPI lte sinr 2/3
Area2
Area 2:
Analysis:
Bad SINR at this area is due to no domain cell.
Area is 1100m away from nearest site EL20158, While the signal is blocked by trees.
DT result is better than the simulation result.
LTE SINR
Footprint for EL20158_8_1
Area2
signal is blocked by trees
Sector 40 degrees of EL20158
1.1KM
DL Throughput
© Ericsson AB 2016

8. D00219_DT KPI—4G DT KPI lte sinr 3/3
Celcom CA Project
D00219_DT KPI—4G DT KPI lte sinr 3/3
Area 3:
Analysis:
Bad SINR at this area is due to no domain cell.
Area is 1700m away from nearest site EL20184, While the signal is blocked by trees.
DT result is better than the simulation result.
Area3
LTE SINR
Footprint for EL20184_8_2
EL20184
1.7KM
Site view from EL20184_8_2
signal is blocked by trees
DL Throughput
© Ericsson AB 2016

9. CSFB CALL SETUP TIME Analysis
PROJECT BAU MODERNIZATION
CSFB CALL SETUP TIME Analysis

10. D00219 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time
Celcom CA Project
D00219 CA SSO dt kpi—4G DT KPI A CSFB call setup time
Analysis:
There are 126 times CSFB, and 89% of samples CSFB Call Setup time is less than 6.5s.
2 times of CSFB Call Setup time are more than 9s
3. As Below CDF plot shows, the CSFB Call Setup time of most of samples are less than 9s, thus the subscriber experience won't be influenced.
© Ericsson AB 2016

11. Hammer Project Celcom Exec Steering
D00219 CA SSO dt kpi—4G DT KPI A CSFB call setup time1/2
Signal Point
Time
Sample Latency(s)
EXTENDED_SERVICE_REQUEST
1:50:32.786
EXTENDED_SERVICE_REQUEST -> RRCConnectionRelease
0.242
RRCConnectionRelease
1:50:33.028
RRCConnectionRelease -> CM_SERVICE_REQUEST
1.438
CM_SERVICE_REQUEST
1:50:34.466
CM_SERVICE_REQUEST -> SETUP
6.228
SETUP
1:50:40.694
SETUP -> ALERTING
3.329
ALERTING
1:50:44.023
Total
11.237
Analysis:
1. High latency from CM_SERVICE_REQUEST to SETUP as UE was receiving SMS (terminatinghighPrioritySignaling) during these 4 signalings.
Propose to disable the SMS service for the test SIM Card. 3 2 4 1
RRCConnectionRelease
6.707 s
RRC_CONNECTION_SETUP_COMPLETE
Proceeding
3.04s
CN Responding
© Ericsson AB 2016

12. Hammer Project Celcom Exec Steering
D00219 CA SSO dt kpi—4G DT KPI A CSFB call setup time2/2
Analysis:
1. High latency from CM_SERVICE_REQUEST to SETUP as UE was receiving SMS (terminatinghighPrioritySignaling) during these 4 signalings.
Propose to disable the SMS service for the test SIM Card. 3 2 4 1
RRCConnectionRelease
7.18 s
RRC_CONNECTION_SETUP_COMPLETE
Proceeding
3.033s
CN Responding
© Ericsson AB 2016

13. Celcom CA Project
© Ericsson AB 2016