Clock synchronization method, mobile network system, network controller and network switch
US9955447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2016 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Dec 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0667
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A clock synchronization method, a mobile network system, a network controller and a network switch are provided. The method computes a round-trip delay ratio between the network controller and the network switch according to a first delay, of which the network controller transmits a packet to the network switch, and a second delay, of which the network switch transmits another packet to the network controller. The method also locks a first clock based on a time-transfer protocol with the round-trip delay ratio, wherein the first clock is synchronized with a master clock of the network controller. The method further sets the first clock being locked as a runtime clock of the network switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.