Canonical Atlas record

TS 33.503

Security Aspects of Proximity based Services (ProSe) in the 5G System (5GS)

Responsible WGS3
StatusUnder change control
Initial releaseRel-17
Selected releaseRel-18
Latest indexed version20.0.0
Series33
TypeTS

Release evolution

Compare evidence between releases

Use indexed version, Work Item and Change Request evidence to see what changed around this specification. This is an evidence trail, not a clause-by-clause normative diff.

Release ledger

Version · WI · CR evidence by release

Rel-1717.10.03 WI186 CRs · 67 approved
Rel-1818.6.02 WI89 CRs · 25 approved
Rel-1919.3.01 WI18 CRs · 5 approved
Rel-2020.0.01 WI2 CRs · 1 approved

Rel-18 snapshot

Work affecting this release

89 indexed Change Requests · 2 connected Work Items.

Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →

CR 0224 — Correction of PC5 direct communication security for relay services in TS 33.503

CR 0209 — Update to TS 33.503 to fix the referred clause and table of services - Mirror

CR 0205 — Add clarification on encryption operation for PC5 ProSe discovery

CR 0203 rev.1 — Support cleartext HPLMN ID in PC5 U2N relay discovery

CR 0187 rev.1 — Clause 6.3.6 in TS 33.503 - correction

CR 0188 rev.1 — Security of 5G ProSe PC5 communication without network assistance - correction

CR 0182 rev.1 — Correction on the scrambing mechanism for U2U relay discovery

CR 0201 rev.1 — Add clarification on encryption operation for PC5 ProSe discovery

CR 0178 rev.1 — Clarification related to U2U discovery model B

CR 0179 rev.1 — CR to TS33.503 Update U2U Relay Discovery procedures for aligning with CT1

CR 0176 — Clarification of direct discovery in r18

CR 0157 rev.1 — Clause 6.1.3.2.3 - Clarification related to the direct discovery set

Version history

Indexed versions

Showing 30 of 30 indexed versions.

20.0.0Rel-20SA#1122026-06-25
19.3.0Rel-19SA#1122026-06-25
18.6.0Rel-18SA#1122026-06-25
19.2.0Rel-19SA#1092025-09-26
19.1.0Rel-19SA#1082025-07-04
19.0.0Rel-19SA#1072025-03-25
18.5.0Rel-18SA#1062025-01-09
17.10.0Rel-17SA#1062025-01-09
18.4.0Rel-18SA#1052024-09-27
17.9.0Rel-17SA#1052024-09-27
18.3.0Rel-18SA#1042024-07-08
17.8.0Rel-17SA#1042024-07-08
18.2.0Rel-18SA#1032024-03-28
17.7.0Rel-17SA#1032024-03-28
18.1.0Rel-18SA#1022024-01-04
17.6.0Rel-17SA#1022024-01-04
18.0.0Rel-18SA#1012023-09-20
17.5.0Rel-17SA#1012023-09-20
17.4.0Rel-17SA#1002023-06-22
17.3.0Rel-17SA#992023-03-30
17.2.0Rel-17SA#98-e2023-01-06
17.1.0Rel-17SA#97-e2022-09-22
17.0.1Rel-17SA#962022-06-17
17.0.0Rel-17SA#962022-06-15
1.0.0Rel-17 · pre-approvalSA#962022-05-31
0.4.0Rel-17 · pre-approvalSA3#107-e2022-05-27
0.3.0Rel-17 · pre-approvalSA3#106-e2022-03-07
0.2.0Rel-17 · pre-approvalSA3#105-e2021-12-08
0.1.0Rel-17 · pre-approvalSA3#104-Adhoc-e2021-10-18
0.0.0Rel-17 · pre-approvalSA3#104-Adhoc-e2021-10-08

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TS 33.503

5G_ProSe

Proximity based Services in 5GS

Rel-17parsed
5G_ProSe

Security Aspects of Proximity based Services in 5GS

Rel-17official
TEI17

(Small) Technical Enhancements and Improvements for Rel-17

Rel-17parsed
5G_ProSe_Ph2

Proximity-based Services in 5GS Phase 2

Rel-18parsed
TEI18

(Small) Technical Enhancements and Improvements for Rel-18

Rel-18parsed
5G_ProSe_Sec_Ph3

Security Aspects of Proximity Based Services in 5GS Phase 3

Rel-19parsed
TEI20

(Small) Technical Enhancements and Improvements for Rel-20

Rel-20parsed

Knowledge graph

Related standards

No graph edges indexed yet. The graph API is available at this JSON endpoint.