Method and Apparatus for Synchronizing Video Live Broadcast
AssigneeHuawei Technologies Co., Ltd.
InventorsLixue Zhang, Chunshan Xiong
Life of this patent
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Abstract
In an embodiment, a video stream synchronization request is sent to a network side device; a video stream playback position synchronization parameter sent by the network side device is received, where the video stream playback position synchronization parameter includes a playback position parameter at a video stream sending moment and a system frame number (SFN) at the video stream sending moment; an SFN at a video stream receiving moment is acquired; and the playback position parameter at the video stream sending moment is adjusted according to the SFN at the video stream sending moment and the SFN at the video stream receiving moment, so as to coincide with a current playback position parameter of the network side device.
Claims16
A non-transitory computer readable medium storing program codes for use by a user equipment device (UE), wherein the program codes comprise instructions for:
- sending a video stream synchronization request to a first network side device, wherein the video stream synchronization request requests to acquire a live video of the first network side device, the acquired live video to be played synchronously by the user equipment with the live video of the first network side device, wherein the first network side device is a base station that connects the user equipment to a network, or the first network side device receives the video stream synchronization request after it is forwarded to the first network side device from the base station that connects the user equipment to the network;
- receiving a video stream playback position synchronization parameter, wherein the video stream playback position synchronization parameter comprises a playback position parameter at a video stream sending moment and a system frame number (SFN) at the video stream sending moment, and wherein the SFN at the video stream sending moment is added to the video stream playback position synchronization parameter by the base station that connects the user equipment to the network, or the SFN is added to the video stream playback position synchronization parameter by a second network side device that receives the playback position parameter from the first network side device;
- acquiring an SFN at a video stream receiving moment;
- and
- adjusting, according to the SFN at the video stream sending moment and the SFN at the video stream receiving moment, the playback position parameter at the video stream sending moment.
A non-transitory computer readable medium storing program codes for use by a network side device, wherein the program codes comprise instructions for:
- receiving a video stream synchronization request sent by user equipment (UE), wherein the video stream synchronization request requests to acquire a live video of the network side device, the acquired live video to be played synchronously by the UE with the live video of the network side device, and wherein the network side device comprises a radio access network (RAN) node that connects the user equipment to a network;
- determining a video stream playback position synchronization parameter 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 system frame number (SFN) at the video stream sending moment, and wherein the SFN at the video stream sending moment is added to the video stream playback position synchronization parameter by the RAN node that connects the user equipment to the network;
- and
- sending the video stream playback position synchronization parameter to the UE.
Dependencies are inferred from the claim text.