Signaling the distributed 1588v2 clock accuracy relative to UTC
US11539452B2 · kind B2 · utility
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11References
15Claims
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Key dates
| Filing date | Jun 1, 2021 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Jun 3, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/32
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A network element includes circuitry configured to receive information related to clock distribution from Precision Time Protocol (PTP) messages from an upstream network element, determine a delta between a network clock from the information and a Primary Reference Time Clock (PRTC), and transmit the delta in PTP messages to downstream network elements. The circuitry can be further configured to receive a configuration of a clock class of a clock at the network element, and transmit the clock class in the PTP messages with the delta. The clock class can be one of A, B, C, and D from G.8273.2 or G.8273.4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.