Dynamic subscriber bandwidth regulation method, system and broadband network gateway

Abstract

The invention discloses a dynamic subscriber bandwidth regulation method, a dynamic subscriber bandwidth regulation system and a broadband network gateway, which relate to the technical field of communication. The method comprises that: the broadband network gateway receives a multicast addition request from a subscriber; the broadband network gateway acquires a bandwidth value of a multicast group into which the subscriber requests to be added; the broadband network gateway regulates unicast bandwidth conventionally configured by the subscriber into the bandwidth obtained by subtracting the bandwidth value of the multicast group by a committed access rate (CAR); and when receiving a multicast leaving request from the subscriber, the broadband network gateway recovers a unicast bandwidth CAR value. By the multicast-way-based subscriber bandwidth regulation method and the multicast-way-based subscriber bandwidth regulation system, dynamic subscriber bandwidth regulation is realized, the bandwidth resources of an operator can be effectively prevented from loss, the congestion degree of a downlink is reduced, and simultaneously, the multicast service experiences of the subscriber are improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method, a system and a broadband network gateway for dynamically adjusting user bandwidth. Background technique [0002] Multicast is a method of packet transmission. Through multicast, the source host can send the same data packet to multiple destination hosts in the same multicast group at the same time. Multicast technology realizes point-to-multipoint efficient data transmission in IP network. Because multicast can effectively save network bandwidth and reduce network load, it is widely used in network video, real-time data transmission, multimedia conference, data copy, game and simulation, etc. It has a wide range of applications in many aspects. [0003] IP multicast includes two types of basic protocols: multicast routing protocols and multicast group management protocols supported between routers and hosts. The multicast group management protocols include IPv4...

AI Technical Summary

Problems solved by technology

When a user accesses an authorized multicast channel, if the user's unicast service flow bandwidth is not dynamically adjusted, the maximum available bandwidth provided by the operator to the user will exceed the user's contracted bandwidth, resulting in damage to the operator's interests

On the other hand, users do not necessarily benefit from the extra bandwidth, because users based on DSL line access will be limited by the physical rate limit or synchronization rate of the DSL line. When the total bandwidth of the service exceeds the physical rate limit of the DSL line or the synchronization rate, the QoS of the multicast service cannot be well guaranteed without any QoS mechanism enabled on the access device, and the user experience of the multicast service is reduced instead.

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