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TR 26.989 (SA4)
Mission Critical Push To Talk (MCPTT) –
Media, codecs and Multimedia Broadcast/Multicast Service (MBMS) enhancements for MCPTT over LTE

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(P) V14.0.0    2017/03    75 p.
(P) V13.1.0    2016/06    75 p.

Rapporteur:  Mr. Turcotte, Eric
See also:  MCPTT-related TS/TR    

The present document covers the enhancement required to support MCPTT.


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1   Scope   PDF-p. 6
2   References
3   Abbreviations   PDF-p. 7
4   Reference Model
5   Key Issues for Supporting MCPTT   PDF-p. 8
5.1   Key Issue#1: Codec for MCPTT
5.1.1   Review of Codec Alternatives and their Relative Perceptual Performance
5.1.2   Review of the Codec Alternatives and their Relative Speech Intelligibility in Clean and Low SNRs   PDF-p. 41
5.1.3   Review of Codec Alternatives and their Relative Complexity   PDF-p. 54
5.1.4   Recommended requirements   PDF-p. 55
5.1.5   GAP Analysis and Evaluation   PDF-p. 56      Up
5.1.6   Criteria with respect to MCPTT codec selection   PDF-p. 58
5.1.7   Solution   PDF-p. 59
5.2   Key Issue#2: User Experience
5.3   Key Issue#3: MCPTT over MBMS support   PDF-p. 62      Up
6   Conclusion
A   Simulation Models and Parameters   PDF-p. 67      Up
B   Change history   PDF-p. 73

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