Ran2954_voice_call_prioritization.pptx

Transcript

  1© Nokia Solutions and Networks 2013 For internal use Unique document identifier (ID) / Version number / Life cycle status RAN2954 The latest version of this NEI can be found here MBB CS NetEng/ Michal Baranski /2014  2© Nokia Solutions and Networks 2013 For internal use Main Menu Voice Call Priorizationduring High Traffic Load RAN2954 Voice Call Priorizationduring High Traffic Load MBB CS NetEng / Michal Baranski /2014 Mass Event Handler Solution for UL for improving mass events Sub-functionalities: Increased TVM pending timeTemporary maximum bit rate for UL DCH Temporary maximum number of HSUPA usersIncreased CQI feedback cycleLoad based E-DCH 2 ms TTI preventionUL load based AC for HSPA+ features Voice Call Priorization Extension of Mass Event Handler for DL Functionality: Enhanced Admission Control for Voice users  3© Nokia Solutions and Networks 2013 For internal use Main Menu in brief  RAN2954 Voice Call Priorizationduring High Traffic Load Increased TVM pending time Temporary maximum bit rate for UL DCH Temporary maximum number of HSUPA users Triggered by number of users in PS NRT queue MEHQueueThreshold Decreases load generated in ULMay affect HSUPA cell throughput Increased CQI feedback cycle Triggered by number of HSDPA users MEHHSDPAUserNbrCQI Decreasesnumber of CQI sent in ULDecreases load in ULMay affect HSDPA performance UL load based AC for HSPA+ features Triggered by number of HSPA users MEHULLHSDPAUALimit Limits number of HSPA+ usersDecreases load generated in UL Load based E-DCH 2 ms TTI prevention Triggered by number of HSUPA users MEHHSUPAUserNbr2msTTI Limits number of HSUPA 2ms usersDecreases load generated in UL Each functionality can be enabled and parameterized separately  4© Nokia Solutions and Networks 2013 For internal use Main Menu Voice Call Priorizationduring High Traffic Load RAN2954 Voice Call Priorizationduring High Traffic Load ã Voice performance problems in mass or special events where extremely high amount of HSPA users are simultaneously attempting to access the network ã High number of SRBs for HSDPA users leads to AMR users blocking by AC Voice Call Priorizationduring High Traffic Load Not activated ã Voice Call Priorizationduring High Traffic Load introduces an automatic control of the HSDPA traffic load on high loaded cells ã Improved call success rate for AMR users accessing the network during the mass event ã Improvement of the following KPIs can be observed: ã RNC_5093b Voice Call Setup Success Ratio (RRC+CU) ã RNC_2498a RRC Establishment FR, voice calls Voice Call Priorizationduring High Traffic Load  Activated MBB CS NetEng / Michal Baranski /2014