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Content for TS 29.060 Word version: 18.0.0

1… 6… 8…

8 Control Plane (GTP-C) p. 167

8.1 Control Plane Protocol p. 167

8.2 Usage of the GTP-C Header p. 167

9 GTP-U p. 169

9.1 GTP-U Protocol Entity p. 169

9.1.1 Handling of Sequence Numbers p. 169

9.2 GTP-U Service Access Points and Primitives p. 170

9.2.1 GTP-U-CONTROL SAP p. 170

9.2.1.1 GTP-U-CONTROL-RX primitives p. 170

9.2.1.1.1 GTP-U-CONTROL-RX-SETUP.request p. 170

9.2.1.1.2 GTP-U-CONTROL-RX-SETUP.confirm p. 171

9.2.1.1.3 GTP-U-CONTROL-RX-RELEASE.request p. 171

9.2.1.1.4 GTP-U-CONTROL-RX-RELEASE.confirm p. 171

9.2.1.1.5 GTP-U-CONTROL-RX-ERROR.indication p. 171

9.2.1.2 GTP-U-CONTROL-TX primitives p. 171

9.2.1.2.1 GTP-U-CONTROL-TX-SETUP.request p. 171

9.2.1.2.2 GTP-U-CONTROL-TX-SETUP.confirm p. 171

9.2.1.2.3 GTP-U-CONTROL-TX-RELEASE.request p. 171

9.2.1.2.4 GTP-U-CONTROL-TX-RELEASE.confirm p. 171

9.2.1.2.5 GTP-U-CONTROL-TX-ERROR.indication p. 172

9.2.2 GTP-U-UNIT-DATA SAP and Primitives p. 172

9.2.2.1 GTP-U-UNIT-DATA.request p. 172

9.2.2.2 GTP-U- UNIT-DATA.indication p. 172

9.3 Protocol Stack p. 172

9.3.1 Usage of the GTP-U Header p. 172

9.3.1.1 Usage of Sequence Number p. 173

9.4 Tunnelling between SGSNs p. 174

9.5 Tunnelling between Source RNC and Target RNC p. 174

9.6 Tunnelling between GGSNs p. 174

10 Path Protocols p. 174

10.1 UDP/IP p. 174

10.1.1 UDP Header p. 174

10.1.1.1 Request Messages p. 174

10.1.1.2 Response Messages p. 174

10.1.1.3 Encapsulated T-PDUs p. 174

10.1.1.4 Error Indication, RAN Information Relay, Version Not Supported and Supported Extension Headers Notification p. 174

10.1.2 IP Header p. 175

10.1.2.1 Request Messages and Encapsulated T-PDUs p. 175

10.1.2.2 Response Messages p. 175

10.1.2.3 Error Indication, RAN Information Relay, Version Not supported and Supported Extension Headers Notification p. 175

11 Error Handling p. 175

11.1 Protocol Errors p. 175

11.1.1 Different GTP Versions p. 176

11.1.2 GTP Message Length Errors p. 176

11.1.3 Unknown GTP Signalling Message p. 176

11.1.4 Unexpected GTP Signalling Message p. 176

11.1.5 Missing Mandatorily Present Information Element p. 176

11.1.6 Invalid IE Length p. 176

11.1.7 Invalid Mandatory Information Element p. 177

11.1.8 Invalid Optional Information Element p. 177

11.1.9 Unknown Information Element p. 177

11.1.10 Out of Sequence Information Elements p. 177

11.1.11 Unexpected Information Element p. 178

11.1.12 Repeated Information Elements p. 178

11.1.13 Incorrect Optional Information Elements p. 178

11.2 Path Failure p. 178

11.3 MS Detach p. 178

11.4 Restoration and Recovery p. 178

12 Security provided to GTP Communication over Gn and Gp Interfaces p. 178

13 IP, The Networking Technology used by GTP p. 179

13.1 IP Version p. 179

13.2 IP Fragmentation p. 179

13.2.1 MO Direction p. 179

13.2.2 MT Direction p. 179

13.2.3 Tunnelling from old to new SGSN p. 180

14 GTP Parameters p. 180

14.1 Timers p. 180

14.2 Others p. 180

15 Mapping of BSSGP and RANAP causes |R7| p. 180

A A method for sequence number checking |R7| p. 183

B (Normative) SGSN mapping table between Gn/Gp and NAS Cause values |R11| p. 183

$ Change history p. 186