US Patent:
20020081969, Jun 27, 2002
Inventors:
Donald Chang - Thousand Oaks CA, US
Grant Beatson - Torrance CA, US
Wah Lim - Newport Beach CA, US
Ming Chang - Rancho Palos Verdes CA, US
Assignee:
HUGHES ELECTRONICS CORPORATION
International Classification:
H04B007/185
Abstract:
A communication system has a communication infrastructure including at least two devices from the group including a cell tower, a first satellite constellation and a second satellite constellation, a stratospheric platform, that are coupled to user terminals through a plurality of dynamic links. The terminal monitors and changes the multiple and dynamic links as the position of the user terminal relative to the said at least two devices. The gateway terminal transmits and receives to said user terminals through at least two devices from the group.