Synchronizing clocks in a communications network
US9929855B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Jan 3, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A User Equipment comprises a master clock, for example a Precision Time Protocol, PTP, or Precision Time Control Protocol, PTCP, network clock. The User Equipment further comprises circuitry configured to set the master clock based on signals from a wireless communications network node and a time offset, wherein the time offset is based on the propagation delay between the wireless network node and the User Equipment. The circuitry is further configured to send timing information to a network device in a communications network having a slave clock, whereby the network device can synchronize its slave clock with respect to the master clock comprised within the User Equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.