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Showing posts with the label Spectral Efficiency

LTE User UL Throughput Enhancement in Nokia system

Issue :-   During day time intermittent data connection lost with poor data experience specially in Zoom Calls/MS Team / CISCO Webex  Analysis :- v Cell KPI stats were satisfactory in BBH and 24 Hrs in DL v When cell KPIs checked in 15min interval it was observed that at some instant high UL demand with UL PRB riches to  95% from 40%-50% with slight poor SINR and BLER v As UL demand and user were high as expected target for BLER were not meeting result more retransmission Solution:- v There were defined fixed target UL BLER on cell level with initial MCS allocation from 4 onward v We decided to make UL target BLER dynamic as depend upon cell scenario with two step process                Set1 :- actUlDynamicTargetBler = True    Set2:- actUlDynamicTargetBler = True&& iniMCSUL =6 Result:- v Both Set has given good result dominated by Set2 ...