RAN2594 Voice Call Prioritization - lab testing v1.0.pptx

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RAN2954 Voice Call Prioritization during high traffic load Lab testing Francesco NORSCIA Marcello MION ©2013 Nokia Solutions and Networks. All rights reserved. Background (I) ã Feature improves the access to the network during the mass events and in high loaded cells ã Voice Call Priorization introduces an automatic control of the HSDPA traffic load in high loaded networks in order to increase voice traffic call success ra
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  ©2013 Nokia Solutions and Networks. All rights reserved. RAN2954 Voice Call Prioritization during high traffic load Lab testing  Francesco NORSCIAMarcello MION  Confidential 2 ©2013 Nokia Solutions and Networks. All rights reserved.FNo /Sep-13/ v1.0 ã  Feature improves the access to the network during the mass events and in high loaded cells ã  Voice Call Priorization introduces an automatic control of the HSDPA traffic load in highloaded networks in order to increase voice traffic call success rate  –  AMR calls are prioritized over the HSDPA SRBs on dedicated traffic channel (DCH)  –  Manual change of parameters for special events is time consuming and expensive for customers ã  RAN2954 is an independent feature in RU40 ã  RAN2879 Mass Event Handler completes RAN2954 by adding other 5 subfeaturesbased on load detection in RNC Background(I)  Confidential 3 ©2013 Nokia Solutions and Networks. All rights reserved.FNo /Sep-13/ v1.0 ã  The functionality is applied if  Ptx,nc   caused by interference from other cells, background noise and RT traffic approaches PtxTarget: -  Ptx_nc  ≥  ( PtxTarget  –  VCPPtxOffset ) -  VCPPtxOffset = 0    reactive mode -  VCPPtxOffset > 0    proactive mode ã  When the condition above is fulfilled max number of HSDPA users is temporary restricted using  VCPMaxHSDPAUsers  parameter  ã  Next  AMR CS DCH  but also  RRC connection  with the establishment cause 'OriginatingConversationalCall  ’, ‘ TerminatingConversationalCall  ’  or   ‘ Terminating   – causeunknown ’  can be admitted if the following condition is fulfilled: - (Ptx_nc+  Δ Ptx_nc)<(  PtxTarget +  PtxOffset  ) where  Δ Ptx_nc   is the estimated increase in Ptx_nc   in case the new RRC/RAB isadmitted Background(II)  Confidential 4 ©2013 Nokia Solutions and Networks. All rights reserved.FNo /Sep-13/ v1.0 ã  Functionality is stopped if  - Ptx_nc   < ( PtxTarget  –  VCPPtxOffset ) AND -  VCPHSDPAPrevDuration  timer has expired ã  Number of allowed HSDPAusers is restored to srcinal value using parameter  -  VCPHSDPAUserIncr Background(III)
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