ITU-T Work Programme

[2025-2028] : [SG15] : [Q13/15]

[Declared patent(s)] - [Associated work]

Work item:

G.8275.1

Subject/title:

Precision time protocol telecom profile for phase/time synchronization with full timing support from the network

Status:

Consented on 2025-10-24 [Issued from previous study period]

Approval process:

AAP

Type of work item:

Recommendation

Version:

Rev.

Equivalent number:

Timing:

2025-10 (Medium priority)

Liaison:

Supporting members:

Summary:

Recommendation ITU-T G.8275.1 specifies a profile for telecommunication applications based on precision time protocol (PTP) per [IEEE 1588]. The profile specifies the PTP functions that are necessary to ensure network element interoperability for the delivery of accurate phase/time (and frequency) synchronization. The profile is based on the use of full timing support (FTS) from the network architecture described in Recommendation [ITU‑T G.8274] and definitions described in [ITU‑T G.8260]. Common aspects of PTP profiles for phase/time synchronization are specified in [ITU‑T G.8275]. Revision incorporates the following updates: Update reference list and abbreviations Clauses 6.2.6, 6.2.9, 6.2.10 Clauses 6.3.5, 6.3.9, 6.3.10 Clause 8 Annex A.8 Annex K, L, M, N. Table A-1 and A-5 Split ITU-T G.8274 vs G.8275 for references Updated profileVersion (A.1 and A.11) with date of this new Revision to be confirmed in Table A.9 (10/2025) Add reference to G.8275 in Appendix IX and XV Editorial enhancements

Comment:

Reference(s):

[SG15-TD164-R1/PLEN (2025-10)

]