Switching methods for satellite communication system

Details Switching methods for satellite communication system Switching methods for satellite communication system

H - Electricity

04

L

H04L 12/56 (2006.01) H04B 7/185 (2006.01) H04B 7/195 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2121586

2121586 9309624 PCTABS00022 The Switching Methods for a Satellite Communication System overcome the limitations encountered by conventional packet switching using virtual circuits. The present invention utilizes a ''datagram'' approach that routes every packet (22) conveyed by the system independently at every node in the network. The packets (22) are directed along an optimized pathway through the network by a fast packet switch (38) that directs traffic based on instructions from an adaptive routing processor (14) that continuously runs an adaptive routing algorithm (16). This adaptive routing processor (14) works together with an input packet processor (28) and a routing cache memory (20) to monitor the rapidly changing topology of each satellite (S) in the constellation and the distribution of traffic among its nodes and links. The input packet processor (28) functions like a gatekeeper or guide that extracts the destination node address (32) from each packet (22) and uses it to access routing information stored in the routing cache memory (20).

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