Multicast/unicast admission control method, device and system

摘要

A multicast/unicast admission control method, a multicast/unicast admission control device, and a multicast/unicast admission control system are provided. In the method, through centralized resource control of a resource and admission control subsystem (RACS), sharing of multicast/unicast resources is realized. The RACS allocates and authorizes resources to an access node (AN), the AN manages the obtained multicast resources under the authorization, and the resource allocation is adjusted through interaction when the multicast resources of the AN or the resources of the RACS are not sufficient.

主权项

1. A multicast admission control (AC) method, comprising:
receiving, by an access node (AN) in a first device, an Internet Group Management Protocol (IGMP) join message, and sending a multicast resource request to a resource and admission control subsystem (RACS) in a second device; receiving, by the RACS, the multicast resource request, and performing a resource AC operation; allocating, by the RACS, multicast resources to the AN and authorizing the AN to manage the multicast resources when it is determined that resources are sufficient, and sending, by the AN, a multicast service flow to a user equipment (UE) after obtaining the multicast resources, wherein the multicast resources are bandwidth resources for the multicast service, or a bandwidth with a guaranteed priority for the multicast service; and receiving, by the AN, a multicast channel switching request message, and performing an AC operation according to the currently authorized and allocated multicast resources, and sending, by the AN, a multicast service flow to the UE if the multicast resources are sufficient for sending the multicast service flow.