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TS 44.065 (CT1)
Subnetwork Dependent Convergence Protocol (SNDCP)

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V14.1.0 (PDF)  2017/09  54 p.
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Rapporteur:  Mr. Aghili, Behrouz
Antecedent:  TS 04.65

This TS provides the description of the Subnetwork Dependent Convergence Protocol (SNDCP) for the General Packet Radio Service (GPRS).

The user of the services provided by SNDCP is a packet data protocol (PDP) at the mobile Station (MS) or the Relay at the Serving GPRS Support Node (SGSN). Additionally, a control entity, e.g. AT command interpreter, may be an SNDCP user. SNDCP uses the services provided by the Logical Link Control (LLC) layer and the Session Management (SM) sub-layer.

The main functions of SNDCP are:
  • Multiplexing of several PDPs.
  • Compression / decompression of user data.
  • Compression / decompression of protocol control information.
  • Segmentation of a network protocol data unit (N PDU) into Logical Link Control Protocol Data Units (LL PDUs) and re-assembly of LL PDUs into an N PDU.
This TS is applicable to GPRS MS and SGSN.


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1  ScopePDF-p. 7
2  References
3  Definitions and abbreviationsPDF-p. 8
4  General
5  Service primitives and functionsPDF-p. 10

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