H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/185 (2006.01)
Patent
CA 2120627
2120627 9405093 PCTABS00030 The present invention includes a low-earth satellite-based paging broadcast system (100) and method (200, 300) that maximizes spectral efficiency and minimizes power expenditure for the broadcast of paging messages by broadcasting the messages to terminator- or originator-selectable portions of the total system coverage area. The terminator selects a long-term preferred geographic area (LTPGA), and optionally, a short-term preferred geographic area (STPGA). The originator provides the terminator ID, the message, and optionally provides a customized preferred geographic area (CPGA). Terminators and originators can easily modify the selectable geographic areas (SGA(s)): LTPGA(s), STPGA(s), and CPGA(s). The gateway converts the SGA(s) to addressable coverage areas (ACA(s)), and transmits a signal including the paging information, and ACA(s) to at least a first communication satellite (COM SAT). The COM SAT(s) provide for crosslinking the signal to other COM SAT(s) and for broadcasting the paging information to the ACA(s).
Frenzer Michael W.
Kurby Christopher N.
Locascio Robert J.
Seitz Martin V.
Walthers Dwight D.
Gowling Lafleur Henderson Llp
Motorola Inc.
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