Specification
3GPP TS 38.455: NG-RAN; NR Positioning Protocol A (NRPPa)
At a glance
- Title
- NG-RAN; NR Positioning Protocol A (NRPPa)
- Newest version
- V19.3.0 (Rel-19)
- Versions indexed
- 7
- Newest per release
- Rel-15: V15.4.0 (2021-08-25); Rel-16: V16.16.0 (2025-12-25); Rel-17: V17.11.0 (2025-12-25); Rel-18: V18.9.0 (2026-09-24); Rel-19: V19.3.0 (2026-09-24)
In plain words
TS 38.455 covers NR Positioning Protocol A (NRPPa), specifying "control plane radio network layer signalling procedures between a NG-RAN node and the LMF.". V19.3.0 includes two CRs addressing Correction to Tx Hopping Configuration and Correction of LoS/NLoS Information.
Source: 3GPP TS 38.455 V19.3.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/38_series/38.455/38455-j30.zip
Newest version in each release
| Release | Newest version | In the archive | TSG meeting |
|---|---|---|---|
| Rel-19 | V19.3.0 | 2026-09-24 | TSG RAN #113 |
| Rel-18 | V18.9.0 | 2026-09-24 | TSG RAN #113 |
| Rel-17 | V17.11.0 | 2025-12-25 | TSG RAN #110 |
| Rel-16 | V16.16.0 | 2025-12-25 | TSG RAN #110 |
| Rel-15 | V15.4.0 | 2021-08-25 | TSG RAN #92-e |
Source: 3GPP specification archive, versions indexed by 3GPP Scout. Each version links its official file.
Change requests in V19.3.0
V19.3.0 of TS 38.455 includes 2 CRs.
| CR | Category | Subject | Source | Working group meeting | TSG TDoc |
|---|---|---|---|---|---|
| CR 0228 rev 1 | A | Correction to Tx Hopping Configuration | ZTE Corporation, Samsung, CATT, Ericsson, China Telecom, Huawei, Nokia, NEC | RAN3 #133 | RP-262148 |
| CR 0231 rev 1 | F | Correction of LoS/NLoS Information | Huawei, China Telecom, CATT, Deutsche Telekom, CMCC, ZTE, Samsung, Ericsson, Nokia | RAN3 #133 | RP-262147 |
Source: 3GPP CR database.
Meetings behind the latest versions
Working group meetings that agreed the CRs in V19.3.0, V18.9.0:
- RAN3 #133: 3 CRs
Plenary meetings:
- TSG RAN #113 approved V19.3.0 (Rel-19)
- TSG RAN #112 approved V19.2.0 (Rel-19)
- TSG RAN #113 approved V18.9.0 (Rel-18)
Source: 3GPP CR database and specification archive, as indexed by 3GPP Scout.
Clauses changed in V19.3.0
12 clauses changed or added in V19.3.0. The 10 with the largest edits are listed. Each clause number opens Scout on that clause.
| Clause | Title | Change | CRs |
|---|---|---|---|
| 9.0 | General | changed | |
| 9.2.1 | Cause | changed | |
| 9.2.65 | On-demand PRS TRP Information | changed | |
| 9.2.77 | LoS/NLoS Information | changed | CR 0231 |
| 9.2.100 | Tx Hopping Configuration | changed | CR 0228 |
| 9.3.1 | General | changed | |
| 3.1 | Definitions | changed | |
| 3.3 | Abbreviations | changed | |
| 4.1 | Procedure specification principles | changed | |
| 4.3 | Specification notations | changed |
Source: 3GPP Scout comparison of this version with the one before it.
Sources
- 3GPP TS 38.455 V19.3.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/38_series/38.455/38455-j30.zip
- 3GPP specification archive, versions indexed by 3GPP Scout.
- 3GPP CR database.
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.