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Work item:
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G.8275.2/Y.1369.2 (2022) Amd.2
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Subject/title:
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Precision time protocol telecom profile for phase/time synchronization with partial timing support from the network - Amendment 2
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Status:
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Under study
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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-
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Equivalent number:
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-
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Timing:
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2024-07 (High priority)
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Liaison:
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IEEE 802, 3GPP, O-RAN
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Supporting members:
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Microchip, Nokia, Ericsson, Huawei, Calnex, Adva
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Summary:
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This Recommendation specifies a profile for telecommunication applications based on [IEEE 1588] precision time protocol (PTP). The profile specifies the IEEE 1588 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 partial timing support (PTS) or assisted partial timing support (APTS) from the network architecture as described in [ITU-T G.8275] and definitions described in [ITU‑T G.8260].
Amendment 1 to Recommendation ITU-T G.8275.2 (2022/11) provides the following updates:
Added notes to clause 6.7.9 “Data set comparison algorithm” with references to [IEEE 1588] on defaultDS.timeReceiverOnly, portDS.masterOnly, and portDS.notMaster.
Added a note to “Table 3 – Applicable clockClass values” on T-BC-A holdover
Added performance monitoring Annex F of [ITU-T G.8275] as an optional feature of this profile
Clarified defaultDS.deviceType with a note added to Table A.1
Revised terminology based on inclusive language
Incremented profileVersion to 2.4 and 2.5 in clauses A.1 and A.11
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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First registration in the WP:
2024-01-11 12:44:09
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Last update:
2024-01-11 12:44:25
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