Method, apparatus, and system for time synchronization based on in-band telemetry
US11558267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2021 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Aug 26, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/0894
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, an apparatus, and a system for time synchronization based on in-band telemetry are disclosed. The method includes: acquiring an estimated value of delay in a first transmission direction and an estimated value of delay in a second transmission direction; wherein the estimated value of delay in the first transmission direction is determined according to multiple delay samples in the first transmission direction, and the estimated value of delay in the second transmission direction is determined according to multiple delay samples in the second transmission direction, the first transmission direction is a direction from a second device to a first device, and the second transmission direction is vice versa; and determining a time system error of the first device relative to the second device according to the estimated value of delay in the first transmission direction and the estimated value of delay in the second transmission direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.