Providing global positioning system (GPS) timing signals to remote cellular base stations
US7558356B2 · kind B2 · utility
88Cited by
13References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Aug 20, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/043
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a cellular network, a GPS receiver includes circuitry that modulates a global positioning system (GPS) timing pulse signal with a carrier signal and transmits the modulated signal to one or more remote base stations. When the modulated timing pulse signal is received at a remote base station it is demodulated and a timing pulse signal corresponding to the GPS timing pulse signal is recovered. The remote base station may be configured to transmit a reply signal back to the GPS receiver, which can then be used to estimate a propagation delay between the GPS receiver and the remote base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.