Specification
3GPP TS 29.281: General Packet Radio System (GPRS) Tunnelling Protocol User Plane (GTPv1-U)
At a glance
- Title
- General Packet Radio System (GPRS) Tunnelling Protocol User Plane (GTPv1-U)
- Newest version
- V19.2.0 (Rel-19)
- Versions indexed
- 5
- Newest per release
- Rel-15: V15.7.0 (2019-12-20); Rel-16: V16.2.0 (2021-03-30); Rel-17: V17.5.0 (2025-01-03); Rel-18: V18.4.0 (2025-09-28); Rel-19: V19.2.0 (2025-09-28)
In plain words
TS 29.281 describes the GTP user plane, with earlier releases using TS 29.060 as its normative definition: "Releases previous to Release-8 have used 3GPP TS 29.060 [6] as normative definition of the user plane of GTP.". The specification says its definition ensures full backwards compatibility with RNC, SGSN and GGSN implementations according to release 7 of 3GPP TS 29.060. For GTP Path, the specification refers readers to 3GPP TS 29.060 for the definition of UDP/IP Path and GTP Endpoint.
Source: 3GPP TS 29.281 V19.2.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/29_series/29.281/29281-j20.zip
Newest version in each release
| Release | Newest version | In the archive | TSG meeting |
|---|---|---|---|
| Rel-19 | V19.2.0 | 2025-09-28 | TSG CT #109 |
| Rel-18 | V18.4.0 | 2025-09-28 | TSG CT #109 |
| Rel-17 | V17.5.0 | 2025-01-03 | TSG CT #106 |
| Rel-16 | V16.2.0 | 2021-03-30 | TSG CT #91-e |
| Rel-15 | V15.7.0 | 2019-12-20 | TSG CT #86 |
Source: 3GPP specification archive, versions indexed by 3GPP Scout. Each version links its official file.
Meetings behind the latest versions
Plenary meetings:
- TSG CT #109 approved V19.2.0 (Rel-19)
- TSG CT #109 approved V18.4.0 (Rel-18)
- TSG CT #106 approved V17.5.0 (Rel-17)
Source: 3GPP CR database and specification archive, as indexed by 3GPP Scout.
Sources
- 3GPP TS 29.281 V19.2.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/29_series/29.281/29281-j20.zip
- 3GPP TS 29.281 V19.2.0, clause 4.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/29_series/29.281/29281-j20.zip
How this page was made
The facts box and the tables come straight from the 3GPP specification archive and CR database as indexed by 3GPP Scout. An AI model (GPT-6 Luna) wrote the paragraph and named the source of each sentence. Code checked every quote word for word against the stored source text and every number against the cited source. A second AI model from another company (Claude Opus 5.5) reviewed the paragraph against the same sources. The 3GPP documents themselves govern.