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TS 44.005 (RAN6)
Data Link (DL) Layer – General aspects

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(P) V14.0.0    2017/03    21 p.
(P) V13.0.0    2016/01    21 p.
(P) V12.0.0    2014/09    21 p.
(P) V11.0.0    2012/09    21 p.
(P) V10.0.0    2011/04    21 p.
(P) V9.0.0    2009/12    21 p.
(P) V8.1.0    2009/03    21 p.
(P) V7.2.0    2009/03    21 p.
(P) V6.1.0    2005/11    21 p.
(P) V5.0.1    2002/12    21 p.
(P) V4.0.0    2001/05    21 p.
(P) GSM Rel-99 v8.0.2    2002/06    21 p.
(P) GSM Rel-98 v7.1.2    2000/09    20 p.
(P) GSM Rel-97 v6.0.1    1998/11    20 p.
(P) GSM Rel-96 v5.0.1    1996/10    24 p.
(W-zip) GSM Phase-2 v4.0.3    1994/09    24 p.
(P) GSM Phase-1 v3.1.5    1992/02    28 p.


Rapporteur:  Mr. Andersen, Niels Peter Skov
Antecedent:  TS 04.05    


This TS describes in general terms the Link Access Procedures on the Dm channel, LAPDm. The application of this protocol to other channel types is for further study. Details are provided in TS 44.006.

The purpose of LAPDm is to convey information between layer 3 entities across the GSM PLMN radio interface (MS to network interface) using the Dm channel.
  • The term Dm channel is used for convenience to designate the collection of all the various signalling channels required in the GSM system. See also TS 44.003.


 

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1   Scope   PDF-p. 5
2   References   PDF-p. 6
2a   Concepts and terminology   PDF-p. 7
3   Overview description of LAPDm functions and procedures   PDF-p. 9
4   Service characteristics
5   Overview of data link layer structure
6   Specific requirements
A   Change History   PDF-p. 19

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