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TS 29.281CT4
GTPv1-U – GPRS Tunnelling Protocol
for User Plane

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for a better overview, the Table of Contents (ToC) is reproduced
V16.0.0 (Wzip)  2019/12  33 p.
V15.7.0 (PDF)  2019/12  35 p.
V14.1.0  2017/06  32 p.
V13.3.0  2017/06  32 p.
V12.1.0  2015/01  29 p.
V11.6.0  2013/03  29 p.
V10.3.0  2011/09  27 p.
V9.3.0  2010/06  26 p.
V8.5.0  2010/04  26 p.

Rapporteur:  Mr. Yang, Yong
See also:
TS 29.060  (GTPv0-U)

This TS defines the user plane of GTP used on:
  • the  Gn  and  Gp  interfaces of the General Packet Radio Service (GPRS);
  • the  Iu,  Gn  and  Gp  interfaces of the UMTS system;
  • the  S1-U,  S11-U,  S2a,  S2b,  X2,  S4,  S5,  S8,  S12,  M1  and  Sn  interfaces of the Evolved Packet System (EPS);
  • the  F1-U,  Xn,  N3  and  N9  interfaces of the 5G System (5GS);
GTP-U Tunnels are used to carry encapsulated T-PDUs and signalling messages between a given pair of GTP-U Tunnel Endpoints. The Tunnel Endpoint ID (TEID) which is present in the GTP header shall indicate which tunnel a particular T-PDU belongs to. In this manner, packets are multiplexed and de-multiplexed by GTP-U between a given pair of Tunnel Endpoints. The TEID value to be used in the TEID field shall be signalled to the peer GTP-U entity using a control plane protocol like GTPv1-C, GTPv2-C, RANAP or S1-AP.

full Table of Contents for  TS 29.281  Word version:   16.0.0

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1  ScopeWord-p. 6
2  References
3  Definitions and abbreviationsWord-p. 7
4  GeneralWord-p. 9
5  GTP-U headerWord-p. 15
6  GTP-U Message FormatsUp
7  GTP-U Messages
8  Information ElementsWord-p. 26
9  Error Handling
10  Security
11  Reliable Delivery of Signalling Messages
12  GTP ParametersWord-p. 29
13  Tunnelling Scenarios
A (Normative)  PDU session user plane protocol over N9 [R15]Word-p. 32
B  Change history

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