A system and method for realizing distributed acceptance control

Abstract

The system and method are applicable to multicast service of Internet protocol television (IPTV). Central resource management and policy formation (CRMPF) module generates service control policy (SCP) and sends it to admission control point (ACP). Based on received SCP, ACP carries out admission control for request on joining multicast channel of IPTV from user's terminal, and based on result of admission control, ACP accepts or refuses the said request. Both the disclosed system and method can provide assurable quality of service of multicast service of IPTV, and raise users' degree of satisfaction markedly.

Description

technical field [0001] The present invention relates to the communication field, in particular to a system and method for realizing distributed admission control in an access network domain. Background technique [0002] With the development of communication technology, multimedia communication is becoming more and more popular. Users can use user terminals to communicate with multimedia communication systems to receive more and more multimedia services from multimedia communication systems, such as: including Internet Protocol Television (IPTV) Video broadcast services including multicast services, etc. [0003] However, in the current IPTV multicast service based on digital subscriber line (DSL) broadband access, it is still unable to provide user terminals with guaranteed service quality, but can only provide relative service quality. Ensure that the IPTV multicast service of the user terminal has a relatively high priority. In the case that the IPTV multicast service c...

AI Technical Summary

Problems solved by technology

[0003] However, in the current IPTV multicast service based on digital subscriber line (DSL) broadband access, it is still unable to provide user terminals with guaranteed service quality, but can only provide relative service quality. Ensure that the IPTV multicast service of the user terminal has a relatively high priority

When the IPTV multicast service can only provide relative service quality, when the bandwidth application for the IPTV service on a certain access device exceeds the downlink bandwidth that the access device can provide, all program videos will be randomly lost. Packet phenomenon; this random packet loss phenomenon will affect all services being provided to user terminals to varying degrees

[0004] In order to provide guaranteed quality of service to user terminals receiving IPTV multicast services, it is usually necessary to limit the number of channels that user terminals can order at the same time, or to establish bandwidth requirements in extreme conditions according to user conditions during early network planning. broadband access network, but the above methods will obviously become unsuitable with the growth of user demand

[0005] It can be seen that due to the current inability to provide users with IPTV multicast services that can guarantee the quality of service, user satisfaction is seriously reduced

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