Celcom LTE CA Project_OSS 2017-06-16 celcom LTE FDD CA project PC_CA_ERE_01 oss KPI justification - Appendix © Ericsson AB 2017

Celcom LTE CA Project_OSS 2017-06-16 4G OSS Justification © Ericsson AB 2017

Hammer Project Celcom CA SSO Project 2017-05-10 4G oss kpi justification # Name Target Value (weekly average) Neighbouring Site Baseline KPI (12/12/2016 - 12/18/2016) Result (2017/05/25-2017/05/31) PASS/FAIL A.19.4.3.1 Data CSSR (%) 99.83 99.78 FAIL A.19.4.3.2 RRC Setup Success Rate (%) 99.94 99.91 A.19.4.3.3 RRC Connection Setup Success Rate (service) 99.96 A.19.4.3.4 E-RAB Call Setup Success Rate(%) 99.89 99.86 A.19.4.3.5 CSFB Setup success rate 99.67 PASS A.19.4.3.6 eRAB Drop Call Rate(%) 0.11 0.10 A.19.4.3.7 DL Packet Loss Rate(%) 0.39 0.07 A.19.4.3.8 UL Packet Loss Rate(%) 0.00 0.16 A.19.4.3.9 Intra-LTE Handover Success Rate(%) 98.40 98.95 A.19.4.3.10 Network Availability Cell Level(%) 100.00 A.19.4.3.11 IRATHO Success Rate(%) 97.62 97.91 A.19.4.3.12 VolTe CSSR(%) A.19.4.3.13 IRATHO_L2W_SR(%) For monitoring only A.19.4.3.14 Cell DL Average Throughput (Mbps) 9.91 13.33 A.19.4.3.15 Cell UL Average Throughput (Mbps) 0.79 0.87 A.19.4.3.16 Total DL Traffic Volume (GBytes) 11671.38 24409.98 A.19.4.3.17 Total UL Traffic Volume (GBytes) 901.22 1671.66 A.19.4.3.18 Avg DL User THP (Mbps) 10.81 14.07 A.19.4.3.19 Avg UL User THP (Mbps) 0.61 0.75 A.19.4.3.20 Max & Average No. of user number for RRC and ERAB No of RRC Average:15.06; No of RRC Max:13.99; No of eRAB Average:16; No of eRAB Max:11.31 No of RRC Average:16.48; No of RRC Max:15.12; No of eRAB Average:17; No of eRAB Max:13.47 A.19.4.3.21 Avg UL Interference(dBm) -118.20 -118.14 A.19.4.3.22 Voice Traffic (LTE+3G+2G) 38881.20 37205.62 >Lower A.19.4.3.23 Data Traffic (LTE+3G+2G) 28002.57 45271.59 >Higher A.19.4.3.24 Resource Block Utilization UTIL_PRB_DL:13.3; UTIL_PRB_UL:5.56 UTIL_PRB_DL:14.02; UTIL_PRB_UL:5.42 A.19.4.3.25 CA capabale users N/A A.19.4.3.26 No of CA users A.19.4.3.27 CA user Ratio © Ericsson AB 2017

Hammer Project Celcom CA SSO Project 2017-05-10 Data CSSR & RRC & RRC SERVICE & ERAB SSR Analysis: The CSSR for Data, RRC, RRC Service and ERAB call setup success rate of the neighbor sites are 99.78%, 99.91%, 99.94%, 99.86% which has a slight degradation compare with the baseline 99.83%, 99.94%, 99.96%, 99.89%. The degradation is mainly cause by the adjusting of qrxlevmin (from -120 to -124) which aiming to keep more users on 4G, the subscribers at the cell edge will stick to LTE with low poor RF condition while the 4G total volume increased as a result, it’s an exceptional decrease just as below summary in mail. Baseline Result qrxlevmin © Ericsson AB 2017

Hammer Project Celcom CA SSO Project 2017-05-10 UL Packet Loss Rate Analysis: The UL Packet Loss Rate for the neighbor site is 0.16% which is a litter worse than baseline(0%). UL Packet Loss Rate increase since feature TCPO activated. Feature TCPO will impact on counter pmpdcpPktLostUI shows in Alex. The TCP Optimization feature is useful to provide a low queuing delay, while maintaining high link utilization and thereby improving the perceived end-user performance in terms of system responsiveness without sacrificing throughput. The feature is also capable of maintaining a more stable cell throughput under load, and will benefit the DL packet loss as below; UL Package Loss Rate=100*[pmpdcpPktLostUI/(pmpdcpPktLostUI+pmpdcpPktReceivedUI)] Feature TCPO Activated Result Baseline © Ericsson AB 2017

Hammer Project Celcom CA SSO Project 2017-05-10 Voice Traffic (LTE+3G+2G) Analysis: The Voice Traffic (LTE+3G+2G) is 37205.62 for the neighbor sites which is lower than baseline 38881.2. More users might use voice call on Apps like WhatsApp, WeChat, Line instead of traditional voice call on cellphone. And we can see that data traffic increased a lot through below picture. Baseline Result © Ericsson AB 2017

Celcom LTE CA Project_OSS 2017-06-16 3G OSS Justification © Ericsson AB 2017

3G oss kpi justification # Description Target Value Technology Baseline KPI Result PASS/FAIL comments 3G 2016-12-12 to 2016-12-18 2017-5-24 to 2017-5-30 A.19.4.19.1 Cell Availability Maintain/Improved 98.47 99.99 Pass A.19.4.19.2 CSSR_AMR 99.83 99.84 A.19.4.19.3 CSSR_PS A.19.4.19.4 AMR Call Drop Ratio 0.21 0.12 A.19.4.19.5 PS Service Drop Ratio 0.37 0.42 Fail A.19.4.19.6 SHO Success Rate (AMR Service) 99.96 99.97 A.19.4.19.7 SHO Success Rate (PS Service) 99.93 99.95 A.19.4.19.8 HS-DSCH Service Cell Change Success Rate A.19.4.19.9 HSDPA RAB Setup Success Rate 99.33 99.27 A.19.4.19.10 HSUPA RAB Setup Success Rate 99.92 A.19.4.19.11 HSDPA Retainability 0.38 A.19.4.19.12 HSUPA Retainability 0.36 A.19.4.19.13 CS Inter-RAT Handover Success Ratio 99.88 A.19.4.19.14 CS Inter-Frequency HHO Success Rate 99.13 98.25 A.19.4.19.15 PS Inter-Frequency HHO Success Rate 98.18 97.62 A.19.4.19.16 RTWP -103.36 -103.18 A.19.4.19.17 PRACH propagation delay(KM) 0.56 A.19.4.19.18 CS Traffic(Erl) 11282.31 11585.07 A.19.4.19.19 CS RAB attempt 590475.00 622335.00 PS RAB attempt 45533921.00 46028068.00 A.19.4.19.20 PS traffic(MB) 7202971.52 8545331.49

Hammer Project KV020 S-KPI CBO 2016-08-26 3g OSS JUSTIFICATION – ps dcr Baseline Result The weekly PS DCR was 0.42% while the baseline was 0.37%. The recently degradation was mainly due to EA40003 transmission quality degradation, for the detail please find the attach email as reference. © Ericsson AB 2016

3g OSS JUSTIFICATION – PS DCR As shown, the EA40003 with transmission quality issue from Apr 5, issue had reported to eportal, which need to check the transmission quality. This site was located at urban area, will affect the user experience badly.

3g OSS JUSTIFICATION – hs rab sr Baseline Result The weekly HS RAB SR was 99.27% while the baseline was 99.33%. Based on the trending, we can see the HS RAB SR was generally maintained at the same level compare with baseline.

3g OSS JUSTIFICATION – hs rab sr UCell Id 09.HS RAB SR(%) 10.EUL RAB SR(%) EA40517_4_2 97.43272386 99.60919813 EW10037_2_3 97.6071364 99.67505695 EW10004_1_2 98.09211152 99.76030851 EW10003_3_2 98.19770792 99.91431954 EW10005_3_1 98.3128214 99.87898869 As checked the worst 5 cells, the failure was mainly due to the “FailAfterAdm”, which normally suspect due to transmission quality issues, and no resource congestion observed.

3g OSS JUSTIFICATION – cs ifho sr Baseline Result The IFHO SR was generally maintained at the same level compare with baseline until Apr 10. Worst relation analysis given at the following slides.

3g OSS JUSTIFICATION – ps ifho sr Baseline Result The IFHO SR was generally maintained at the same level compare with baseline until Apr 10. Worst relation analysis given at the following slides.

3g OSS JUSTIFICATION – cs ifho sr UtranCell UtranRelation IFHO Failures_CS IFHO SR_CS(%) EW10004_3_2 EW10004_2_2 19 74.67 EW10517_1_2 EW10517_2_2 12 95.56 EW10003_3_1 EW10003_1_1 10 EW10002_1_1 EW10002_2_1 7 94.31 The daily IFHO failure times was very few, and NB relation was defined properly. The CS IFHO SR was fluctuation due to less samples.

3g OSS JUSTIFICATION – ps ifho sr UtranCell UtranRelation IFHO SR_PS(%) IFHO Failures_PS EW10041_3_3 EW10041_1_1 34.04 31 EA40005_4_1 EW10005_2_1 89.86 28 EW10002_1_2 EA40005_4_3 79.39 27 EW10004_3_2 EW10004_2_2 75.00 The daily IFHO failure times was very few, and NB relation was defined properly. The PS IFHO SR was fluctuation due to less samples.

Celcom LTE CA Project_OSS 2017-06-16 2G OSS Justification © Ericsson AB 2017

2G OSS Justification Refer to OSS Analysis # Description Target Value Technology Baseline KPI (12/12/2016~12/18/2016) Result(5/4/2017-5/10/2017) PASS/FAIL comments 2G A.19.4.19.1 Cell Availability Maintain/Improved 99.97 100.00 PASS A.19.4.19.2 CSSR_Voice 99.72 99.73 A.19.4.19.4 DCR_Voice 0.24 0.22 A.19.4.19.5 PS_Drop 1.00 A.19.4.19.17 Timing Advance A.19.4.19.18 CS Traffic 17202.05 13676.77 Fail Refer to OSS Analysis A.19.4.19.19 TCH attempt 519691 385520 A.19.4.19.20 PS traffic(GB) 238.67 205.94

2G OSS Justification-Cs traffic baseline result Performance analysis: It shows 2G+3G CS traffic increased except weekend; 2G CS traffic and TCH attempts decreased due to voice traffic shifted to 3G;

2G OSS Justification-ps traffic baseline result Performance analysis: 2G PS traffic decrease 32.8GB and 3G+4G PS traffic increase 15286.66GB a week compared with baseline. 2G PS traffic decreased due to PS traffic shifted to 3G/4G; It shows 2G+3G+4G PS traffic increased after CA on air;

Celcom LTE CA Project_OSS 2017-06-16 © Ericsson AB 2017