Method and apparatus for geographic based control in a communication system
US5857155A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1996 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Jul 10, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2205/007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A selective call transceiver (20) in a messaging system (100) having a plurality of transmitters (90, 94, 99), comprises a receiver module (26), a transmitter module (22) coupled to the receiver module and a controller (28) coupled to the receiver module and the transmitter module for controlling the operation of the selective call transceiver. Additionally the selective call transceiver comprises a GPS receiver (24) for receiving GPS information and coupled to the controller, wherein the controller uses the GPS information to assist in the control of functions selected from the group consisting of transmitter power control, site selection switching, sub-zone selection switching, forward error correction, retry transmission decisions, Doppler frequency shifting, synchronization, and frequency scanning and selection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.