Method and system for IPTV time shift processing

• Main Author: YANG, JINCHUN
• Format: Patent
• Language: English; French; German
• Published: 13.05.2009
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

A method for IPTV time shift processing includes: receiving the play command of a UE after time shift occurs; adjusting the unicast rate of the UE according to the play command of the UE, so that the unicast progress is consistent with the multicast progress of the server after a certain time of unicast; transmitting the media stream corresponding to the play command to the UE through unicast; and when the unicast progress is consistent with the multicast progress, switching the media stream corresponding to the play command to the multicast mode for further transmission. With the invention, the play action of the user after time shift occurs can be resolved and the unicast rate of the user can be adjusted through the server. In this way, the unicast progress of the media stream becomes consistent with the multicast progress gradually, and finally, the unicast channel is removed to save bandwidth.