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Content for  TR 26.989  Word version:  16.0.0

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4  Reference Model

5  Key Issues for Supporting MCPTTWord‑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 SNRsWord‑p. 41

5.1.3  Review of Codec Alternatives and their Relative ComplexityWord‑p. 54

5.1.4  Recommended requirementsWord‑p. 55

5.1.5  GAP Analysis and EvaluationWord‑p. 56

5.1.6  Criteria with respect to MCPTT codec selectionWord‑p. 58

5.1.7  SolutionWord‑p. 59

5.2  Key Issue#2: User Experience

5.3  Key Issue#3: MCPTT over MBMS supportWord‑p. 62

6  Conclusion

A  Simulation Models and ParametersWord‑p. 67

$  Change historyWord‑p. 73


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