Method and systems for allocating bandwidth

A bandwidth and bandwidth allocation technology, applied in transmission systems, radio transmission systems, electrical components, etc., can solve the problems of round-trip satellite link delay, VoIP communication jitter, long delay, etc., and achieve accelerated signaling and good bandwidth reuse. , reduce the effect of timeout
CN101595658AInactive Publication Date: 2009-12-02SIEMENS AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SIEMENS AG
Publication Date
2009-12-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method and a system for allocating bandwidth for VoIP calls over a satellite communication system, in which a remote satellite terminal (VSAT) is requesting to a hub-gateway (HG), bandwidth to be allocated according to a dynamic technique based on the packet rate between an access device (AD) and the remote satellite terminal (VSAT), comprising: a) by the access device (AD), sending a smart IP packet (SP) to the remote satellite terminal (VSAT), having the function of a bandwidth control message packet, containing information on bandwidth allocation requirements for a given set of VoIP calls; b) by the remote satellite terminal (VSAT), identifying the received smart IP packet SP as the control message packet; c) by the remote satelli-te terminal (VSAT), analyzing the information on bandwidth allocation requirements contained in the received smart IP packet (SP); and d) by the remote satellite terminal (VSAT), upon necessity, requesting to the hub-gateway (HG) bandwidth to be allocated in accordance with the analyzed information on bandwidth allocation requirements.
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Description

technical field

[0001] The present invention generally relates to bandwidth allocation in VoIP telecommunication systems, wherein bandwidth is allocated according to dynamic rate based techniques. Background technique

[0002] The invention is illustrated with a possible application of the invention in a satellite telecommunication system.

[0003] Satellite communications are characterized by scarce and expensive bandwidth. The lack of satellite bandwidth requires bandwidth to be reused through a suitable centralized access method controlled by a Hub-gateway device. The main disadvantage of such a centralized bandwidth rate control method is that it implies round-trip satellite link delays for the bandwidth allocation to the remote stations to be done by the hub gateway, which is hereinafter schematically represented by FIGS. 1 to 5 is illustrated graphically.

[0004] Fig. 1 is a block diagram schematically showing an exemplary architecture of a partially packet-based s...

Claims

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