Patent ID: 8959240
Filing Date: 2015-02-17
Classification: H04L

Abstract:
1. A method for rapid acquisition of multicast realtime transport protocol sessions, comprising the steps of: receiving, by a unicast server, a multicast rapid acquisition control request signalling transmitted by a media client, wherein the control request signalling comprises synchronization request information; determining, by the unicast server, that the media client performs data synchronization according to the synchronization request information in the control request signalling; determining, by the unicast server, synchronization response information for the media client to perform a data synchronization according to a time difference between stored play time of a random access point and a current time, wherein the synchronization response information comprises: play speed information of a unicast media stream and play duration of the unicast media stream; generating a multicast rapid acquisition control response signalling by the unicast server, wherein the control response signalling comprises: the synchronization response information and multicast acquisition information; and transmitting, by the unicast server, the control response signalling and a stored media stream to the media client in a unicast way so that the media client sets the play speed and the play duration for playing the unicast media stream; and the stored media stream comprises random access point transmitted in a multicast way by a multicast server.