H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 13/00 (2006.01) H04B 7/216 (2006.01) H04J 13/04 (2006.01) H04L 5/02 (2006.01) H04L 7/04 (2006.01)
Patent
CA 2108459
2108459 9222161 PCTABS00018 A network of personal communications terminals (10), also called pico terminals, communicating in CDMA mode includes a reference station for transmitting a pilot tone that is pre-corrected at the reference and is used at the remaining stations for frequency control, transmit power control, and antenna acquisition and tracking. All pico terminals (10) are in the same uplink beam (12) and downlink beam (14). Each pico terminal (10) is given a unique PN code for receiving signals intended for receipt by that terminal. Voice activation is used for sharing the satellite transponder power and bandwidth in a fully Demand-Assignment-Multiple-Accessing (DAMA) manner. Uplink power control is used to mitigate the CDMA near-far problem.
Communications Satellite Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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