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TS 08.60














In-band control of remote transcoders and rate adaptors for Enhanced Full Rate (EFR) and full rate traffic channels

(P) GSM Rel-99 v8.2.1    2003/01    41 p.
(P) GSM Rel-98 v7.3.0    2002/02    42 p.
(P) GSM Rel-97 v6.0.1    1998/11    32 p.
(P) GSM Rel-96 v5.1.1    1997/07    32 p.
(W) GSM Phase-2 v4.4.1    1997/11    30 p.
(P) GSM Phase-1 v3.3.1    1992/02    32 p.

Rapporteur:  ANDERSEN, Niels Peter Skov
Descendant(s):  TS 48.060    

When 64 kbit/s traffic channels are used on the A-bis interface, the speech shall be coded according to ITU-T Recommendation G.711 and the data rate adaptation shall be as specified in TS 04.21 and TS 08.20.

In the case where 16 kbit/s traffic channels are used for full rate speech, enhanced full rate speech, Adaptive Multi-Rate speech or full rate data service, then this TS shall apply for frame structure and for control of remote transcoders and additional rate adaptors.

For Adaptive Multi-Rate speech this TS specifies the 16 kBit/s submultiplexing, both for the full and the half rate traffic channels (TCH/AFS and TCH/AHS). The specification for 8 kBit/s submultiplexing is given in TS 08.61, both for the full and the half rate traffic channels (TCH/AFS and TCH/AHS).

The use and general aspects of the A-bis interface are given in TS 08.51.
  • This TS should be considered together with the GSM 06 series of specifications, TS 04.21 (Rate Adaptation on the MS-BSS Interface) and TS 08.20 (Rate Adaptation on the BS/MSC Interface).

1   Scope   PDF-p. 6
2   General Approach
3   Frame Structure   PDF-p. 10
4   Procedures
4.1   Remote Control of Transcoders and Rate Adaptors
4.2   Resource Allocation   PDF-p. 26
4.3   Resource Release
4.4   In Call Modification   PDF-p. 27
4.5   Transfer of Idle Frames, Handling of Missing Data      Up
4.6   Procedures for Speech Services   PDF-p. 28
4.7   Procedures for Data Frames
4.8   Frame Synchronization   PDF-p. 35
4.9   Correction/detection of bit errors on the terrestrial circuits   PDF-p. 36
4.10   Procedures for Operation & Maintenance      Up
A   Change History   PDF-p. 39