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TS 09.60 (CT4)
General Packet Radio Service (GPRS) – GPRS Tunnelling Protocol GPT) across the Gn and Gp Interface

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(P) GSM Rel-98 v7.10.0  2002/12  69 p.
(P) GSM Rel-97 v6.13.0  2002/12  67 p.

Rapporteur:  SCHMITT, Peter
Descendant:  TS 29.060

This TS defines the GPRS Tunnelling Protocol (GTP), i.e. the protocol between GSN nodes in the GPRS backbone network. It includes both the GTP signalling and data transfer procedures. It also lists the messages and information elements used by the GTP based charging protocol GTP', which is described in TS 12.15.

GTP is defined both for the Gn interface, i.e. the interface between GSNs within a PLMN, and the Gp interface between GSNs in different PLMNs. GTP' is defined for the interface between CDR generating functional network elements and Charging Gateway(s) within a PLMN. Charging Gateway(s) and GTP' protocol are optional, as the Charging Gateway Functionalities may either be located in separate network elements (Charging Gateways), or alternatively be embedded into the CDR generating network elements (GSNs) when the GSN-CGF interface is not necessarily visible outside the network element. These interfaces relevant to GTP are between the grey boxes shown in the figure below.


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1  ScopePDF-p. 7
2  References
3  Definitions and abbreviationsPDF-p. 8
4  General
5  Transmission order and bit definitionsPDF-p. 10
6  GTP header
7  Signalling PlanePDF-p. 12
7.1  Signalling protocol
7.2  Signalling Message FormatsUp
7.3  Usage of the GTP HeaderPDF-p. 13
7.4  Path Management messagesPDF-p. 14
7.5  Tunnel Management messages
7.6  Location Management messagesPDF-p. 28
7.7  Mobility Management messages
7.8  Reliable delivery of signalling messagesPDF-p. 35
7.9  Information elements
8  Transmission PlanePDF-p. 52
9  Path ProtocolsUp
10  Error handlingPDF-p. 55
11  Inter-PLMN GTP communication over the Gp interfaceUp
12  IP, the networking technology used by GTP
13  GTP parameters
A  Naming conventionPDF-p. 64Up
B  A method for sequence number checkingPDF-p. 65
C  Document change historyPDF-p. 66

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