Patent ID: 8621534
Filing Date: 2013-12-31
Classification: H04L,H04N

Abstract:
1. A method for admission control, comprising: receiving, by a multicast bandwidth management device, a multicast video request from a subscriber, and judging whether available multicast bandwidth satisfies a requirement of the multicast video request; refusing the subscriber for watching a multicast video if the available multicast bandwidth does not satisfy the requirement of the multicast video request; judging whether an upper level device exists if the available multicast bandwidth satisfies the requirement of the multicast video request; if the upper level device exists, forwarding the multicast video request from the subscriber to the upper level device, so that whether to admit the subscriber for watching the multicast video is determined by the upper level device; and if no upper level device exists, admitting the subscriber for watching the multicast video; wherein the judging whether the available multicast bandwidth satisfies the requirement of the multicast video request comprises: determining that the available multicast bandwidth satisfies the requirement of the multicast video request when managed remaining multicast bandwidth does not satisfy the requirement of the multicast video request, but unicast bandwidth is successfully borrowed from a unicast bandwidth management device.