Carrying a timestamp in radio over ethernet
US11212068B1 · kind B1 · utility
4Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2020 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Aug 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2212/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A node can include a clock; and mapper circuitry configured to determine a timestamp from the clock, and transmit the timestamp to a second node in a Radio over Ethernet (RoE) frame with the timestamp in a control subtype and with an operational code (opcode) that designates the timestamp is in the frame. The node can also include a demapper circuit configured to receive a second timestamp from the second node in a second RoE frame, and provide the second timestamp to a Differential Clock Recovery (DCR) circuit for adjustment of the clock to a second clock at the second node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.