05907541 is referenced by 157 patents and cites 4 patents.

A communication system (10) includes a plurality of fixed terrestrial gateway terminals (14) and fixed village terminals (18), and also includes a plurality of mobile user terminals (16). The system includes a first satellite (12m) which provides communication in a bent-pipe manner between user terminals (16) lying in spot-beams of the first satellite's antenna and gateway terminals (18) lying in a broad antenna beam. The system also includes a second satellite which provides communications in a bent-pipe manner between or among the gateways/village terminals. The village terminals differ from the gateways in that the village terminals do not include the subscriber of user home or visitor registers. The village terminal includes a wireless local communication system such as a WLL, for communicating with user terminals (16) lying within its range. The user terminals (16) are dual-mode. In a first operating mode, the user terminals (16) communicate with other users by way of the village terminal when within its range, and otherwise switch to a second mode, in which they communicate by way of the first satellite. The village terminal communicates with gateways by means of the second spacecraft.

Title
Architecture for an integrated mobile and fixed telecommunications system including a spacecraft
Application Number
8/957753
Publication Number
5907541
Application Date
October 20, 1997
Publication Date
May 25, 1999
Inventor
Dennis Clifton Whitaker
Newtown Square
PA, US
Daniel Wayne Fairholm
Ashburn
VA, US
Agent
R P Kennedy
W H Meise
Assignee
Lockheed Martin
CA, US
IPC
H04B 7/185
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