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TR 23.860 (SA2)
Enabling coder selection and rate adaptation
for UTRAN and E-UTRAN
for load adaptive applications

ToC   3GPP‑Page   Help    
V10.0.0 (Wzip)  2010/06  14 p.


Rapporteur:  Mr. Ac, Mahendran
See also:  –

The system enhancements to enable codec rate adaptation at voice call setup over E-UTRA was standardized in Rel-9 in TS 23.401.

The scope of this TR is to study and specify enhancements to existing codec selection and codec rate adaptation based on network loading conditions and operator policies over UTRA and E-UTRA. Potential enhancements are definition of the signalling and interfaces enabling:
  • To perform codec selection based on network loading conditions and operator policies during call establishment phase over both UTRA and E-UTRA;
  • To perform codec data rate adaptation (if possible for the selected codec and needed by the service) based on network loading conditions during call establishment phase over UTRA;
  • To perform codec data rate adaptation (if possible for the selected codec and needed by the service) for nonvoice RTP-based services based on network loading conditions at call setup over E-UTRA;
  • To perform codec data rate adaptation (if possible for the selected codec and needed by the service) based on network loading indications during an on-going call over both UTRA and E-UTRA;
  • Support of codec rate adaptation by IMS Core Network entities (e.g., MGCF/MGW, IBCF/TrGW, etc.);
  • Setting of Maximum Bit Rate (MBR) to be greater than the Guaranteed Bit Rate (GBR) over E-UTRA.
The solutions can be moved to normative specifications independently of each other once the study on the particular solution has been concluded.


 

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