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Method, device and system for acquiring streaming media data

A streaming media and data technology, applied in the field of acquiring streaming media data, can solve problems such as incompatibility, base station scheduling cannot accurately estimate channel quality, transmission failure, etc., to save bandwidth consumption and reduce retransmission delay.

Inactive Publication Date: 2013-11-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the unstable characteristics of the wireless channel, during the transmission of segmented data over the air interface, the channel quality of the wireless channel changes rapidly, and the base station scheduling cannot accurately estimate the channel quality at each moment, so the base station in a certain transmission process It is possible to use a transmission format that is not suitable for the current instantaneous transmission channel state, resulting in transmission failure, resulting in lost video data that must be retransmitted, and the user equipment's waiting delay for the segmented data increases

Method used

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  • Method, device and system for acquiring streaming media data
  • Method, device and system for acquiring streaming media data
  • Method, device and system for acquiring streaming media data

Examples

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Embodiment 1

[0089] In this embodiment, the base station obtains and stores segmented data of video playback by itself. When the user equipment initiates a request, the base station finds the segmented data requested by the user equipment from the stored segmented data, and sends it to the user equipment.

[0090] Such as image 3 As shown, the methods for obtaining streaming media data include:

[0091] 301. An evolved base station (eNodeB) acquires configuration information of video playback.

[0092] Wherein, acquiring the configuration information of video playback may include acquiring from the server storing the MPD configuration file; or intercepting the MPD configuration file requested by the UE; or reporting the configuration information corresponding to the video to be played by the UE to the eNodeB.

[0093] 302. The eNodeB determines the bandwidth available for the current video service according to at least one of the following information:

[0094] QoS information of the bu...

Embodiment 2

[0104] In this embodiment, after receiving the request sent by the user equipment, the base station acquires and stores segmented data. Such as Figure 4 As shown, the methods for obtaining streaming media data include:

[0105] 401. The eNodeB receives a segment request from UE1, and requests segment data for playing a certain video.

[0106] 402. The eNodeB receives a segment request from UE2, and the segment data requested by the segment request is the same as the segment data requested by UE1, such as the same video playback segment or the same video playback period (that is, the same playback time period ).

[0107] 403. The eNodeB obtains the segmented data requested by UE1 and UE2.

[0108] Specifically, if the eNodeB has stored the segmented data requested by UE1 and UE2, the eNodeB directly executes step 406;

[0109] If the eNodeB does not store the segmented data requested by UE1 and UE2, the eNodeB sends the segmented request initiated by UE1 to the media serve...

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Abstract

The invention provides a method, device and system for acquiring streaming media data. Segment data returned from a media server are stored through a base station, and thus, when the segment data sent to a UE from the base station are lost and the UE sends the same segment request to the base station again, the base station does not send the segment request to the media server any more and sends the stored segment data to the UE. The retransmission delay of empty media data is lowered, and consumption of bandwidth caused by retransmission on a network side is also saved.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method, device and system for acquiring streaming media data. Background technique [0002] DASH (Dynamic Adaptive Streaming over HTTP, dynamic adaptive streaming media transmission technology based on HTTP (Hypertext Transfer Protocol, The Hypertext Transfer Protocol)) is a transmission technology that dynamically adapts to the network bandwidth to transmit video data streams. [0003] 3GP-DASH (3rd Generation Partnership Project Dynamic AdaptiveStreaming over HTTP, the third generation partnership project based on hypertext transfer protocol) client (Client) first needs to obtain the configuration information of the video file, that is, MPD (Media PresentationDescription, media display description) configuration file , the configuration file contains the bandwidth required to obtain videos of different qualities, and the client (Client) actively requests the video ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04W80/08
Inventor 韩广林韦安妮张戬
Owner HUAWEI TECH CO LTD
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