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TS 27.001 (CT3)
General on Terminal Adaptation Functions (TAF) for Mobile Stations

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(P) V14.0.0    2017/03    87 p.
(P) V13.0.0    2015/12    87 p.
(P) V12.0.0    2014/10    86 p.
(P) V11.0.0    2012/09    86 p.
(P) V10.0.0    2011/04    87 p.
(P) V9.1.0    2011/01    87 p.
(P) V8.1.0    2011/01    87 p.
(P) V7.0.0    2007/06    85 p.
(P) V6.3.0    2006/12    85 p.
(P) V5.10.0    2006/12    84 p.
(P) V4.14.0    2006/12    81 p.
(P) V3.16.0    2005/06    85 p.

Rapporteur:  Mr. Holm, Jan
Antecedent:  TS 07.01    

This TS is based on the principles of terminal adaptor functions presented in the ITU-T I-series of Recommendations (I.460 to I.463).

The PLMN supports a wide range of voice and non-voice services in the same network. In order to enable non-voice traffic in the PLMN there is a need to connect various kinds of terminal equipment to the Mobile Termination (MT). The target of the present document is to outline the functions needed for the terminal adaptation.

The bearer services are described in TS 22.002 and the general network configuration is described in TS 23.002. The PLMN access reference configuration is defined in TS 24.002. The various connection types used in the A/Gb mode or GERAN Iu mode PLMN are presented in TS 43.010. For support of data services between a PLMN and other networks see TS 29.007.

This TS is valid for a 2nd generation PLMN (A/Gb mode) as well as for a 3rd generation PLMN (Iu mode). If text applies only for one of these systems it is explicitly mentioned by using the terms "A/Gb mode" and "UTRAN Iu mode". If text applies to both of the systems, but a distinction between the ISDN/PSTN and the PLMN is necessary, the term "PLMN" is used.

Please note that the Gb interface does not play any role in the scope of the present document although the term "A/Gb mode" is used.


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1   Scope   PDF-p. 7
2   References
3   Definitions and abbreviations   PDF-p. 11
4   Access reference configuration   PDF-p. 12
5   Functions to support data services   PDF-p. 13
6   Support of non transparent Bearer Services
7   Structure of the 3GPP TS 27-series of Specifications
8   Functions common to all interfaces   PDF-p. 17
8.1   Synchronization of the Traffic Channel
8.2   Filtering of Channel Control Information (A/Gb or GERAN Iu mode transparent mode only)
8.3   Terminal Compatibility Decision
8.4   Test Loops
8.5   Alternate speech/facsimile group 3
8.6   Multislot configuration split/combine function   PDF-p. 27
8.7   EDGE multiplexing function
8.8   Seamless data rate change
A   List of Bearer Capability Elements   PDF-p. 28      Up
B  (Normative)   Setting of Bearer Capability, Low Layer Compatibility and High Layer Compatibility Information Element for PLMN Bearer Services and PLMN TeleServices   PDF-p. 35
B.0   Scope
B.1   Bearer Capability Information Element
B.1.1   Introduction
B.1.2   Bearer Service 20, Data Circuit Duplex Asynchronous   PDF-p. 48
B.1.3   Bearer Service 30, Data Circuit Duplex Synchronous   PDF-p. 54
B.1.4   Bearer Service 40...46, PAD Access Asynchronous   PDF-p. 67
B.1.5   Bearer Service 50...53 ,Data Packet Duplex Synchronous, Unrestricted digital information transfer capability
B.1.6   Bearer Service 61, Alternate Speech/Data
B.1.7   Bearer Service 81, Speech followed by Data
B.1.8   Teleservice 11...12, Speech   PDF-p. 68
B.1.9   Teleservice 21...23, Short Message   PDF-p. 69      Up
B.1.10   Teleservice 61, Alternate Speech and Facsimile group 3
B.1.11   Teleservice 62, Automatic Facsimile group 3   PDF-p. 72
B.1.12   Valid combinations of FNUR, WAIUR, ACC, mTCH
B.1.13   Assignment of radio access bearer parameters depending on FNUR and WAIUR   PDF-p. 74
B.2   Low Layer/High Layer Compatibility Information Element   PDF-p. 77
C   Change history   PDF-p. 82

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