Specification
3GPP TS 37.324: E-UTRA and NR; Service Data Adaptation Protocol (SDAP) specification
At a glance
- Title
- E-UTRA and NR; Service Data Adaptation Protocol (SDAP) specification
- Newest version
- V19.0.0 (Rel-19)
- Versions indexed
- 5
- Newest per release
- Rel-15: V15.1.0 (2018-09-25); Rel-16: V16.3.0 (2021-07-06); Rel-17: V17.0.0 (2022-04-13); Rel-18: V18.0.0 (2024-04-13); Rel-19: V19.0.0 (2025-10-06)
In plain words
TS 37.324 specifies SDAP (Service Data Adaptation Protocol) for a UE with connection to the 5G-CN or a UE in NR sidelink communication. The overview says its objective is to "describe the SDAP architecture and the SDAP entity from a functional point of view". The specified functionality only applies to UE with connection to the 5G-CN and UE in NR sidelink communication.
Source: 3GPP TS 37.324 V19.0.0, clause 4.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/37_series/37.324/37324-j00.zip
Newest version in each release
| Release | Newest version | In the archive | TSG meeting |
|---|---|---|---|
| Rel-19 | V19.0.0 | 2025-10-06 | TSG SA #109 |
| Rel-18 | V18.0.0 | 2024-04-13 | TSG SA #103 |
| Rel-17 | V17.0.0 | 2022-04-13 | TSG RAN #95-e |
| Rel-16 | V16.3.0 | 2021-07-06 | TSG RAN #92-e |
| Rel-15 | V15.1.0 | 2018-09-25 | TSG RAN #81 |
Source: 3GPP specification archive, versions indexed by 3GPP Scout. Each version links its official file.
Meetings behind the latest versions
Plenary meetings:
- TSG SA #109 is recorded for V19.0.0 (Rel-19)
- TSG SA #103 is recorded for V18.0.0 (Rel-18)
- TSG RAN #95-e approved V17.0.0 (Rel-17)
Source: 3GPP CR database and specification archive, as indexed by 3GPP Scout.
Sources
- 3GPP TS 37.324 V19.0.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/37_series/37.324/37324-j00.zip
- 3GPP TS 37.324 V19.0.0, clause 4.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/37_series/37.324/37324-j00.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.