TR 22.813
SA1
★
Study of Use Cases and Requirements
for enhanced Voice Codecs for the EPS
use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced
for a better overview, the Table of Contents (ToC) is reproduced
V10.0.0 (Wzip)
2010/04 15 p.
WI Acronym: FS_EV_EPS
Rapporteur: Mr. Lottin, Philippe Orange
Rapporteur: Mr. Lottin, Philippe Orange
This study defines and analyses the new use cases in the environment of EPS and its future services. It evaluates how much the newly defined requirements are met by the already available codecs in 3GPP releases prior to Rel-10. Potential new requirements for voice codecs are elaborated in due course.
Specifically, the objective of this study item is to:
Starting from Rel-8 timeframe, MTSI as a conversational multimedia service is provided over EPS. MTSI is the main service for which the enhancements are targeted. This does not however exclude the enhanced service requirements from being later adopted to other services where such enhancements are needed and are found suitable.
- Identify service and system requirements,
- Identify high level requirements,
- Assess the existing codecs in respect to identified requirements,
- Define a strategy for EPS voice codec(s) standardization,
- Identify some use cases for enhanced voice and mixed content conversational multimedia service for EPS (see Annex A).
full Table of Contents for TR 22.813 Word version: 10.0.0
1 Scope Word-p. 5
2 References
3 Definitions, symbols and abbreviations Word-p. 6
4 Overview on the EPS service objectives and characteristics
5 System and service requirements Word-p. 8
5.1 Quality of user experience
5.2 Efficiency Word-p. 9
5.3 Backward service interoperability with pre-Rel-10 3GPP networks and devices
6 High level technical requirements on speech codecs
6.1 Design constraints
7 Assessment of existing codecs
8 Strategy for EPS's codec(s) standardization
A Use cases
6.1.1 Audio bandwidth
6.1.2 Number of audio channels
6.1.3 Bit rates
6.1.4 Algorithmic delay Word-p. 10
6.1.5 Complexity
6.1.6 Backward interoperability
6.2 Performance requirements
6.2.1 Speech quality
6.2.2 Quality for mixed content and music Word-p. 11
6.2.3 Robustness to packet loss and delay jitter
6.3 Transcoding performance Word-p. 12
A.1 High quality audio conferencing over heterogeneous networks and with different terminals
A.2 Two-party communication Word-p. 13
A.3 Interoperability with pre-Rel-10 3GPP systems
A.4 Mobility scenarios
A.5 Call Hold and (Explicit) Call transfer
A.6 Voice-mail service Word-p. 14
A.7 Access to network media server content
A.8 Music on hold
B Change history Word-p. 15
A.4 Mobility scenarios
A.5 Call Hold and (Explicit) Call transfer
A.6 Voice-mail service Word-p. 14
A.7 Access to network media server content
A.8 Music on hold
