gprs
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gprsTRANSCRIPT
Whar are the major PS Core KPIs in GPRS service?See previous comments How operators set threshold for "PDP context activation success rate", "attach success rate". Is there any standard?June 5, 2012 Shahram Moradiactualy thos are 3 parts (Radio, SGSN,GGSN) folwwoing is for SGSN part GPRS Attach Succ Ratio% Inter Papu Rau Succ Ratio % Intra Papu Rau Succ Ratio % Periodic Rau Succ Ratio % OUTG Inter Rau Succ Ratio% OUTG Intra Rau Succ Ratio% PDP Cont Act Succ Ratio % PDP Context Deact Succ Ratio% Fo Name Inqs All Own Dns Inquiries Succ Ratio%for GGSN the following are recommanded Date Time(Query 9 with SGSN) tra_ggsn500d-Average GTP throughput ggsn_117a-Average GTP throughput-RC ggsn_118-Avg GTPthroughputsending tra_ggsn501d-AvGTPthroughpuDL32 res_ggsn50b-Dynamic IP addresses av(Query 9 with SGSN) res_ggsn68c-Interactive priority 2. res_ggsn69c-Interactive priority 3. res_ggsn70c-Background DL data drop res_ggsn54b-Created PDP contexts(Query 9 with SGSN) ggsn_111a-Active PDP contexts(Query 9 with SGSN) res_ggsn51c-PDP contexts average du(Query 9 with SGSN) ggsn_2084a-Average payload pr PDP s ggsn_2085a-Average payload pr PDP s ggsn_2086a-Average throughput pr PD ggsn_2087a-Average throughput pr PD ggsn_527a-PDP context activation su(Query 9 with SGSN) res_ggsn66c-Streaming DL data drop res_ggsn67c-Interactive priority 1 ggsn_632a-PDP contexts usage(Query 9 with SGSN)for radio part 2G/2.5G. consider these are major not all UL EGPRS RLC throughput UL EGPRS RLC payload DL EGPRS RLC payload Downlink GPRS RLC payload Uplink GPRS RLC payload Downlink GPRS RLC throughput Uplink GPRS RLC throughput DL EGPRS RLC throughputAt times it is disappointing to see KPIs biasing the analysis, for example PDP attach delay could be due to Gi delay which wouldn't be captured in the KPI root cause. Guess it is time to broaden the KPI formula for GPRS. With LTE coming in it is going to be even more interesting .. Interesting times ahead !Recommended KPIs......... Availability............. Network Availability... Service Availability .. Latency ................. Link Speed............... Throughput .............. Download Speeds........ Upload Speeds.......... Retainability ...........