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1. (WO2010115376) MEDIA STREAM SWITCHING METHOD, APPARATUS AND SYSTEM

Pub. No.:    WO/2010/115376    International Application No.:    PCT/CN2010/071645
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Sat Apr 10 01:59:59 CEST 2010
IPC: H04N 7/26
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
GUO, Kai
郭凯
XIANG, Haizhou
向海州
ZHENG, Hewen
郑合文
Inventors: GUO, Kai
郭凯
XIANG, Haizhou
向海州
ZHENG, Hewen
郑合文
Title: MEDIA STREAM SWITCHING METHOD, APPARATUS AND SYSTEM
Abstract:
The present invention relates to the field of network communications. A media stream switching method, apparatus and system are provided. The method includes: receiving and buffering messages, wherein said messages are used for bearing the media stream; obtaining the visual sensitivity of said messages; when a media stream switching request is received from a terminal, selecting the messages with high visual sensitivity from said buffered messages; rearranging the serial numbers of said messages with high visual sensitivity; and sending the messages, whose serial numbers have been rearranged, with high visual sensitivity to the terminal. With the technical scheme provided by the embodiments of the present invention, because only the messages with high visual sensitivity are sent to the terminal, the requirement of the media stream switching on the transmission bandwidth is reduced, and the number of the pushable unicast bit streams is increased. And because the serial numbers of the sent messages have been rearranged, the terminal need not request retransmission of the messages, and the problems are solved that the requirement of the media stream switching on transmission bandwidth is high, the number of the pushable unicast bit stream is limited and the duration of the push is long.