Project CA project T00087 oss KPI justification - Appendix CA Project 2017-04-21 Project CA project T00087 oss KPI justification - Appendix © Ericsson AB 2016

CA Project 2017-04-21 3G OSS Justification © Ericsson AB 2016

3G oss kpi justification CA Project 2017-04-21 3G oss kpi justification # Description Target Value Technology Baseline KPI (02/01/17- 08/01/17) Result (12/05/17 - 18/05/17) PASS/FAIL comments 3G 2017-01-02 to 2017-01-02 2017-5-12 to 2017-5-18 A.19.4.19.1 Cell Availability Maintain/Improved 99.91 99.95 Pass A.19.4.19.2 CSSR_AMR 99.73 99.43 Fail Refer to OSS Justification A.19.4.19.3 CSSR_PS 99.66 99.72 A.19.4.19.4 AMR Call Drop Ratio 0.27 0.17 A.19.4.19.5 PS Service Drop Ratio 0.66 0.76 A.19.4.19.6 SHO Success Rate (AMR Service) 99.98 99.93 A.19.4.19.7 SHO Success Rate (PS Service) 99.96 99.87 A.19.4.19.8 HS-DSCH Service Cell Change Success Rate 99.16 A.19.4.19.9 HSDPA RAB Setup Success Rate 98.63 98.72 A.19.4.19.10 HSUPA RAB Setup Success Rate 99.80 99.84 A.19.4.19.11 HSDPA Retainability 0.77 0.85 A.19.4.19.12 HSUPA Retainability 0.74 0.83 A.19.4.19.13 CS Inter-RAT Handover Success Ratio 99.82 99.83 A.19.4.19.14 CS Inter-Frequency HHO Success Rate 99.00 97.98 A.19.4.19.15 PS Inter-Frequency HHO Success Rate 98.51 97.81 A.19.4.19.16 RTWP -102.90 -102.39 A.19.4.19.17 PRACH propagation delay(KM) 0.82 A.19.4.19.18 CS Traffic(Erl) 14327.72 15013.00 A.19.4.19.19 CS RAB attempt 842225.00 925731.00 PS RAB attempt 68589282.00 74093613.00 A.19.4.19.20 PS traffic(MB) 12129434.54 13679278.46 © Ericsson AB 2016

3g CSSR_AMR justification CA Project 2017-04-21 3g CSSR_AMR justification 1.CSS_AMR didn’t pass the target and is 99.43% ,only 0.30% degraded compared with baseline. 2 The KPI degraded from 15st March, and the feature FDpchSrbOnHsdpa was activated that time with KNRN15.the KPI was influenced. © Ericsson AB 2016

3g PS Service Drop Ratio justification CA Project 2017-04-21 3g PS Service Drop Ratio justification 1.PS drop didn’t pass the target and is 0.76% ,only 0.10% degraded compared with baseline. 2. The KPI degraded from 15st March, and the feature FDpchSrbOnHsdpa was activated that time with KNRN15.the KPI was influenced. © Ericsson AB 2016

F-dpch AND SRB ON HSDPA FEATURE INTRODUCTION Advantage: The SRB on HSDPA feature provides faster signaling in the downlink, which results in a decrease in time for RAB establishment and other transitions, such as PDP Context Activation time, Speech Call Setup time, Cell Change time and Channel Switching. Disadvantage: Having moved the SRB flow to HS, the signaling is only carried over the HS-DSCH serving cell. Thus, the SRB is not subjected to soft/softer handover. As a result, there is a risk of increased number of drops with SRB on HS.

3G SHO Success (cs) Rate justification CA Project 2017-04-21 3G SHO Success (cs) Rate justification 1. The weekly SHO SR CS is 99.93% while the baseline is 99.98%. 2. The KPI degraded due to cell EA60465_4_3 overshooting, the weekly SHO SR CS is 97.37% .site EA60465 is margin site , in order to cover larger area, the KPI is accepted. © Ericsson AB 2016

3G SHO Success (ps) Rate justification CA Project 2017-04-21 3G SHO Success (ps) Rate justification 1. The weekly SHO SR PS is 99.87% while the baseline is 99.96%. 2. The KPI degraded due to cell EA60465_4_3 overshooting, the weekly SHO SR PS is 97.05% .site EA60465 is margin site , in order to cover larger area, the KPI is accepted. © Ericsson AB 2016

3G HS-DSCH Service Cell Change Success Rate justification CA Project 2017-04-21 3G HS-DSCH Service Cell Change Success Rate justification HS-DSCH Service Cell Change Success Rate was 99.16% (0.82% less than the baseline) . The KPI degraded from 15st March, and the feature FDpchSrbOnHsdpa was activated that time with KNRN15.the KPI was influenced. © Ericsson AB 2016

3G HSDPA Retainability justification CA Project 2017-04-21 3G HSDPA Retainability justification HSDPA retainability was 0.87% ,0.08% less than the baseline. HSUPA RAB Setup Success Rate was 0.83% ,0.09% less than the baseline. The KPI degraded from 15st March, and the feature FDpchSrbOnHsdpa was activated that time with KNRN15.the KPI was influenced. © Ericsson AB 2016

3G cs inTer freq hho justification(1/2) CA Project 2017-04-21 3G cs inTer freq hho justification(1/2) CS Inter-frequence HHO SR didn’t pass the target and is 98% ,only 1% degraded compared with baseline. there were no data from 10th to 17th April and executed the CR at 10th April. The KPI was influenced. the analysis for top offenders are shown in next slides. © Ericsson AB 2016

3G cs inTer freq hho justification(2/2) CA Project 2017-04-21 3G cs inTer freq hho justification(2/2) The top offenders of IFHO_CS are shown in below table IFHO_CS degraded after 10Apr CR done Daily HO failure was less than 10 times, it is just normal fluctuation. Normal fluctuation due to less samples, suggest keeping monitoring UCell Id UtranRelation IFHO_CS(%) IFHO_CS_Failure EW30074_3_2 EW30074_1_2 94.28 17 EW30008_1_2 EW30008_2_2 97.92 EW30007_1_2 EW30007_2_2 98.06 15 EW30008_1_3 EW30008_2_3 98.88 19 © Ericsson AB 2016

3G ps inTer freq hho justification(1/2) CA Project 2017-04-21 3G ps inTer freq hho justification(1/2) PS Inter-frequence HHO SR didn’t pass the target and is 97.79% ,only 0.72% degraded compared with baseline there were no data from 10th to 17th April and executed the CR at 10th April. The KPI was influenced. the analysis for top offenders are shown in next slides. © Ericsson AB 2016

3G ps inTer freq hho justification(2/2) CA Project 2017-04-21 3G ps inTer freq hho justification(2/2) The top offenders of IFHO_PS are shown in below table IFHO_PS degraded after 10Apr CR done Daily HO failure was very few,, it is just normal fluctuation. Normal fluctuation due to less samples, suggest keepingmonitoring UCell Id UtranRelation IFHO_CS(%) IFHO_CS_Failure IFHO_PS(%) IFHO_PS_Failure pmCellDowntimeAuto EW30074_3_2 EA30074_4_2 95.02 12 92.17 134 1979 EW60397_2_2 EA30397_4_2 93.79 11 97.65 116 EW60397_1_2 99.05 3 142 EW60397_2_3 EA30397_4_3 99.62 2 99.04 144 © Ericsson AB 2016

CA Project 2017-04-21 3G rtwp justification RTWP didn’t pass the target and is -102.60 only 0.55 increased compared with baseline, RTWP increased a little due to PS traffic increased. © Ericsson AB 2016

CA Project 2017-04-21 © Ericsson AB 2016