Multiplex communications – Wide area network – Packet switching
Patent
1994-08-01
1996-04-16
Chin, Wellington
Multiplex communications
Wide area network
Packet switching
370 681, 370 79, 370 97, H04L 1264, H04L 1266
Patent
active
055090044
ABSTRACT:
A communication network (10) includes a constellation of satellites (12) in orbit around the earth. Gateways (14) communicate with the satellites (12), reside on the surface of the earth, and interface the network (10) to the local PSTN (18). User units (16) communicate with satellites (12) and provide communication services to users. A gateway (14) includes a mobile switching center (22), which connects half-calls, and an earth terminal controller (20), which occasionally overrides connections defined in the mobile switching center (22). When possible, communication paths connected at the mobile switching center (22) are intraswitched at one or more satellites (12) rather than being routed through the mobile switching center. However, when supplementary services are requested, the communication path is reconfigured back to the mobile switching center (22) so that additional signals may be inserted into the communication path.
REFERENCES:
patent: 5016243 (1991-05-01), Fite, Jr.
patent: 5060140 (1991-10-01), Brown et al.
patent: 5182744 (1993-01-01), Askew et al.
patent: 5182750 (1993-01-01), Bales et al.
patent: 5189662 (1993-02-01), Kleine-Altekamp
patent: 5195090 (1993-03-01), Bolliger et al.
Armbruster Peter J.
Bishop, Jr. James W.
Chin Wellington
Hall Phillip Earl
Johanson Kevin K.
Motorola Inc.
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