Project hammer T00278 LTE DT Analysis Celcom CA Project 2017-04-25 © Ericsson AB 2016

T00278 CA-report – DT KPI overview – 4G Celcom CA Project 2017-04-25 T00278 CA-report – DT KPI overview – 4G © Ericsson AB 2016

PROJECT BAU MODERNIZATION 2016-10-26 CONTENTS SINR Analysis CSFB Call Setup Time Analysis

T00278_DT KPI—4G DT KPI lte sinr Celcom CA Project 2017-04-25 T00278_DT KPI—4G DT KPI lte sinr Summary: 2 areas are identified with bad SINR issue, circled as the left. Area1 Area2 EL30040 PA Comments 1 Bad SINR due to poor coverage 2 EL30040 Area1 © Ericsson AB 2016

T00278_DT KPI—4G DT KPI lte sinr PA1 Celcom CA Project 2017-04-25 T00278_DT KPI—4G DT KPI lte sinr PA1 Area1 SINR DL THP Area1 SINR Satellite view EL30040 Area1 Area1 RSRP Satellite view 1200m 900m Sector view EL30039_8_3 Area 1: Analysis: 1. SINR is bad due to bad RSRP in area 1. 2.Average DL THP>7M of this area is acceptable and the subscriber experience won't be influenced. 3.Area 1 was covered by EL30039_ PAKA_8_3.The signal from EL30039_PAKA_8_3 was blocked by dense trees. 4.The Existing E-tilt of EL30039_PAKA_8_3 is 2,don’t suggest to up tilt of this cell © Ericsson AB 2016

T00278_DT KPI—4G DT KPI lte sinr PA2 EL30040 Area2 Area2 Area2 SINR Satellite view RSRP Satellite view 2680m 2560m RSRP Satellite view Area 1: Analysis: SINR is bad due to bad RSRP in area 2. All cell are serving the target are with site lobe, no dominant cell are dedicated for target area. Poor coverage of this area is due to long distance with EL30161_ TMPAKA (Height:44m) and EL30040_MJDPAKA(Height:36m). 4. DT SINR result matches with simulation, both of them are not good Area2

T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time Celcom CA Project 2017-04-25 T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time Analysis: There are 189 times CSFB, and 69.84% of samples CSFB Call Setup time is less than 6.5s. 57 times of CSFB Call Setup time are more than 6.5. 8 times of CSFB Call Setup time are more than 9s. © Ericsson AB 2016

T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #1 Celcom CA Project 2017-04-25 T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #1 Signal Point Time Sample Latency(s) EXTENDED_SERVICE_REQUEST 0:47:09.704 EXTENDED_SERVICE_REQUEST -> RRCConnectionRelease 0.294 RRCConnectionRelease 0:47:09.998 RRCConnectionRelease -> CM_SERVICE_REQUEST 1.421 CM_SERVICE_REQUEST 0:47:11.419 CM_SERVICE_REQUEST -> SETUP 11.405 SETUP 0:47:22.824 SETUP -> ALERTING 3.998 ALERTING 0:47:26.822 Total 17.118 Analysis: 1.Top 1 CSFB call take 17.118s from EXETENDED_SERVICE_REQUEST to ALERTING. 2.There are 11.405s from CM_SERVICE_REQUEST to SETUP which mainly caused long CSFB call setup time. 3. 5 times RRC_CONNECTION_REQUEST during the 11s is due to poor ECNO. © Ericsson AB 2016

T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #2 Celcom CA Project 2017-04-25 T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #2 Signal Point Time Sample Latency(s) EXTENDED_SERVICE_REQUEST 0:50:29.507 EXTENDED_SERVICE_REQUEST -> RRCConnectionRelease 0.197 RRCConnectionRelease 0:50:29.704 RRCConnectionRelease -> CM_SERVICE_REQUEST 0.807 CM_SERVICE_REQUEST 0:50:30.511 CM_SERVICE_REQUEST -> SETUP 6.103 SETUP 0:50:36.614 SETUP -> ALERTING 3.495 ALERTING 0:50:40.109 Total 10.602 Analysis: 1.Top 2 CSFB call take 10.602s from EXETENDED_SERVICE_REQUEST to ALERTING. 2.There are 6.103s from CM_SERVICE_REQUEST to SETUP which mainly caused long CSFB call setup time. 3.Poor ECNO caused long CSFB call setup time. © Ericsson AB 2016

T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #3 Celcom CA Project 2017-04-25 T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #3 Signal Point Time Sample Latency(s) EXTENDED_SERVICE_REQUEST 2:53:04.297 EXTENDED_SERVICE_REQUEST -> RRCConnectionRelease 0.292 RRCConnectionRelease 2:53:04.589 RRCConnectionRelease -> CM_SERVICE_REQUEST 1.005 CM_SERVICE_REQUEST 2:53:05.594 CM_SERVICE_REQUEST -> SETUP 4.503 SETUP 2:53:10.097 SETUP -> ALERTING 4.795 ALERTING 2:53:14.892 Total 10.595 Analysis: 1.Top 3 CSFB call take 10.595s from EXETENDED_SERVICE_REQUEST to ALERTING. 2.There are 4.795s during SETUP to ALERTING which mainly caused long CSFB call setup time. 3.During CALL PROCEDDING to ALERTING，there are many ACTIVE_SET_UPDATE . It was proved that unstable UMTS wireless environment. 4.Measurement_report displays poor RSCP and ECNO during the test. © Ericsson AB 2016

T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #4 Signal Point Time Sample Latency(s) EXTENDED_SERVICE_REQUEST 1:33:57.421 EXTENDED_SERVICE_REQUEST -> RRCConnectionRelease 0.195 RRCConnectionRelease 1:33:57.616 RRCConnectionRelease -> CM_SERVICE_REQUEST 0.403 CM_SERVICE_REQUEST 1:33:58.019 CM_SERVICE_REQUEST -> SETUP 5.504 SETUP 1:34:03.523 SETUP -> ALERTING 4.2 ALERTING 1:34:07.723 Total 10.302 Analysis: 1.Top 4 CSFB call take 10.302s from EXETENDED_SERVICE_REQUEST to ALERTING. 2.There are 5.504s from CM_SERVICE_REQUEST to SETUP which mainly caused long CSFB call setup time. 3.Poor RSCP&ECNO caused long CSFB call setup time.

T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #5 Celcom CA Project 2017-04-25 T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #5 Signal Point Time Sample Latency(s) EXTENDED_SERVICE_REQUEST 2:59:31.713 EXTENDED_SERVICE_REQUEST -> RRCConnectionRelease 0.193 RRCConnectionRelease 2:59:31.906 RRCConnectionRelease -> CM_SERVICE_REQUEST 4.209 CM_SERVICE_REQUEST 2:59:36.115 CM_SERVICE_REQUEST -> SETUP 1.203 SETUP 2:59:37.318 SETUP -> ALERTING 4.103 ALERTING 2:59:41.421 Total 9.708 Analysis: 1.Top 5 CSFB call take 9.708s from EXETENDED_SERVICE_REQUEST to ALERTING. 2.There are 4.209s from RRCConnectionRelease to CM_SERVICE_REQUEST which mainly caused long CSFB call setup time. 3. RRCConnectionRelease message displays that Utra-FDD is 3012 but Measurement Report message shows UE resident in PSC341(EW30161_1_6 UARFCN:10762, EW30161_2_6 UARFCN:10737).It was doubted that UE take much times for searching suitable cell. During the process , there are many system message. © Ericsson AB 2016

T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #6 Signal Point Time Sample Latency(s) EXTENDED_SERVICE_REQUEST 0:53:57.569 EXTENDED_SERVICE_REQUEST -> RRCConnectionRelease 0.297 RRCConnectionRelease 0:53:57.866 RRCConnectionRelease -> CM_SERVICE_REQUEST 2.006 CM_SERVICE_REQUEST 0:53:59.872 CM_SERVICE_REQUEST -> SETUP 2.9 SETUP 0:54:02.772 SETUP -> ALERTING 4.296 ALERTING 0:54:07.068 Total 9.499 RRCConnectionRelease 4.504 s RRC_CONNECTION_SETUP_COMPLETE Analysis: 1.Top 6 CSFB call take 9.499s from EXETENDED_SERVICE_REQUEST to ALERTING. 2. The main reason is that It takes 4.504s from 4G RRCConnectionRelease fall back to 3G RRC_CONNECTION_SETUP_COMPLETE, during the fallback time.

T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #7 Signal Point Time Sample Latency(s) EXTENDED_SERVICE_REQUEST 0:59:03.641 EXTENDED_SERVICE_REQUEST -> RRCConnectionRelease 0.298 RRCConnectionRelease 0:59:03.939 RRCConnectionRelease -> CM_SERVICE_REQUEST 0.204 CM_SERVICE_REQUEST 0:59:04.143 CM_SERVICE_REQUEST -> SETUP 5.201 SETUP 0:59:09.344 SETUP -> ALERTING 3.696 ALERTING 0:59:13.040 Total 9.399 RRCConnectionRelease 5.007 s RRC_CONNECTION_SETUP_COMPLETE Analysis: 1.Top 7 CSFB call take 9.399s from EXETENDED_SERVICE_REQUEST to ALERTING. 2. The main reason is that It takes 5.007s from 4G RRCConnectionRelease fall back to 3G RRC_CONNECTION_SETUP_COMPLETE, during the fallback time.

T00278 CA SSO dt kpi—4G DT KPI A.19.4.10.19 CSFB call setup time #8 Signal Point Time Sample Latency(s) EXTENDED_SERVICE_REQUEST 0:52:42.103 EXTENDED_SERVICE_REQUEST -> RRCConnectionRelease 0.313 RRCConnectionRelease 0:52:42.416 RRCConnectionRelease -> CM_SERVICE_REQUEST 0.506 CM_SERVICE_REQUEST 0:52:42.922 CM_SERVICE_REQUEST -> SETUP 3.6 SETUP 0:52:46.522 SETUP -> ALERTING 4.599 ALERTING 0:52:51.121 Total 9.018 RRCConnectionRelease 3.705s RRC_CONNECTION_SETUP_COMPLETE Analysis: 1.Top 8 CSFB call take 9.018s from EXETENDED_SERVICE_REQUEST to ALERTING. 2. The one reason is that It takes 3.705s from 4G RRCConnectionRelease fall back to 3G RRC_CONNECTION_SETUP_COMPLETE, during the fallback time. Another reason is that It takes 4.599s to wait responding from CN.

Celcom CA Project 2017-04-25 © Ericsson AB 2016