Bandwidth allocation method and apparatus

Details Bandwidth allocation method and apparatus Bandwidth allocation method and apparatus

H - Electricity

04

W

H04W 72/04 (2009.01) H04W 76/02 (2009.01)

Patent

CA 2482628

A satellite communications system provides a communications service to a mobile terminal (2) on which different communications applications (4a to 4d) may be run. Calls are set up between any of the applications (4a to 4d) via a satellite (12) to a network management centre (18) which provides different service adaptors (20a to 20d) which adapt the calls to different types of service provided over terrestrial networks (22), such as telephony, facsimile, internet or ATM services. The bandwidth allocated to each call over the satellite link may be varied during the call according to demand either from the relevant application (4) or from the network management centre (18). Multiple calls may be connected concurrently to or from different applications running on the mobile terminal. A maximum bandwidth is allocated to each call. Efficient use is thereby made of the limited bandwidth available over the satellite (12), according to the instantaneous bandwidth requirements of different applications {4). For real- time calls requiring multiple slots per frame in a TDMA channel, the slots are mutually spaced apart to reduce delay.

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