US 9,813,744 B2
Method and apparatus for synchronizing video live broadcast
Lixue Zhang, Beijing (CN); and Chunshan Xiong, Beijing (CN)
Assigned to Huawei Technologies Co., Ltd, Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Aug. 18, 2015, as Appl. No. 14/829,412.
Application 14/829,412 is a continuation of application No. PCT/CN2013/071642, filed on Feb. 18, 2013.
Prior Publication US 2015/0358654 A1, Dec. 10, 2015
Int. Cl. H04N 7/16 (2011.01); H04N 21/242 (2011.01); H04L 29/06 (2006.01); H04N 21/238 (2011.01); H04N 21/24 (2011.01); H04N 21/234 (2011.01); H04N 21/647 (2011.01); H04N 21/61 (2011.01); H04N 21/2187 (2011.01); H04N 21/2183 (2011.01); H04N 21/43 (2011.01); H04N 21/6405 (2011.01); H04N 21/8547 (2011.01)
CPC H04N 21/242 (2013.01) [H04L 65/4076 (2013.01); H04L 65/605 (2013.01); H04N 21/2183 (2013.01); H04N 21/2187 (2013.01); H04N 21/23406 (2013.01); H04N 21/23805 (2013.01); H04N 21/2402 (2013.01); H04N 21/4305 (2013.01); H04N 21/6131 (2013.01); H04N 21/6405 (2013.01); H04N 21/64769 (2013.01); H04N 21/8547 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for synchronizing video live broadcast, the method comprising:
sending, by a user equipment, a video stream synchronization request to a network side device;
receiving a video stream playback position synchronization parameter sent by the network side device according to the video stream synchronization request, wherein the video stream playback position synchronization parameter comprises a playback position parameter at a video stream sending moment and a SFN at the video stream sending moment, wherein the SFN at the video stream sending moment is determined by a network-side radio access network (RAN) node that corresponds to a base station that connects the user equipment to a network;
acquiring an SFN at a video stream receiving moment;
determining a transmission delay of the video stream according to the SFN at the video stream sending moment and the SFN at the video stream receiving moment; and
adjusting, according to the transmission delay of the video stream, the playback position parameter at the video stream sending moment, so as to coincide with a current playback position parameter of the network side device.