Patent ID: 8930451
Filing Date: 2015-01-06
Classification: H04L

Abstract:
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.