Rapid media channel changing mechanism and access network node comprising same

摘要

There is provided a kind of rapid media stream channel changes in conjunction while can improve the utilization rates of Internet resources. A kind of media stream multicast by multiple requesting decoders for being received. Media Stream includes that grouping includes picture group (GOPs), is stored in the access node of buffer area. From at least part of the access node unicast packet, to be received by the new requesting decoders in response to requiring appointment of medium stream identifier to correspond to media data flow from new requesting decoders reception. Then, multicast media stream new decoder is in the unicast media stream for transmitting grouping at the multicast media stream with grouping transmission.