GPS synchronized data communications link
US6483856B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1998 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Jul 29, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0682
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication system using GPS-based time for synchronizing communication data packets and symbols. The communication system includes a transmit apparatus for transmitting and a receive apparatus for receiving a communication data signal. The transmit apparatus includes a transmit station GPS receiver for providing GPS-based time, a transmit framer for using the GPS-based time for framing packets of communication data symbols, and a transmit symbol timer for synchronizing the communication data symbols to the GPS-based time. The receive apparatus includes a GPS receiver for providing the GPS-based time, a receive framer for using the GPS-based time for receiving the packets of the communication data signal, and a receive symbol timer for synchronizing the reception of the communication data symbols to the GPS-based time. Either the transmit apparatus includes a propagation advance calculator or the receive apparatus includes a propagation delay calculator in order to compensate for the propagation delay of the communication data signal between the transmit apparatus and the receive apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.