Wireless telephone/satellite roaming system
US5303286A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1991 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Mar 29, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64G1/1085
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A wireless telephone system capable of servicing a roaming wireless telephone user includes a satellite communications system consisting of one or more orbiting satellites, each carrying a database of users, destination codes and call codes, within a satellite service area, a satellite control center, and a plurality of terrestrial communications links. The system operates by effecting communication between a terrestrial wireless telephone end user transceiver apparatus and a terrestrial communications link via a single relay through a single satellite or a succession of satellites wherein the relay station may be in motion relative to the end user transceiver apparatus and the terrestrial communications link, wherein the orbiting relay station effects the ultimate decision on linking based on stored on-board information and on-board processing, and wherein the end user transceiver apparatus, the orbiting satellite and the terrestrial communications link are operative in cooperation with the on-board database to effect hand-off from a first orbiting satellite to a second orbiting satellite. The satellite system is a single satellite or preferably a constellation of satellites orbit…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.