tech-invite   World Map
3GPP     Specs     Glossaries     Architecture     IMS     UICC       IETF     RFCs     Groups     SIP     ABNFs       Search     Home
Top        in Index        Prev        Next

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

|   ToC   |   3GPP‑Page   |   Help   |

(W-zip) V10.0.0    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.


 

Here        Top