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Forward error correction feedback information transmission method and device

A technology of feedback information and forward error correction, which is applied in the field of forward error correction feedback information transmission, can solve the problems of slow data recovery and slow adjustment of forward error correction code redundancy

Active Publication Date: 2017-12-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a forward error correction feedback information transmission method and device, which solves the problems of slow adjustment of forward error correction code redundancy and slow data recovery when using RTCP protocol for forward error correction feedback

Method used

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  • Forward error correction feedback information transmission method and device
  • Forward error correction feedback information transmission method and device

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Experimental program
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Embodiment 1

[0045] This embodiment provides a forward error correction feedback information transmission method. The solution in the present invention involves the sender and receiver of the forward error correction feedback information. The solution in this embodiment is mainly aimed at the forward error correction information sender. For the steps to be performed, please refer to figure 1 , the method includes:

[0046] S101: Receive the peer-end media data packet, determine the packet loss rate, and generate forward error correction feedback information according to the packet loss rate;

[0047] S102: Encapsulate the forward error correction feedback information into a media data packet;

[0048] S103: Send the media data packet to the opposite end.

[0049] Since the forward error correction feedback information is mainly the feedback on the situation of receiving the media data packet from the opposite end, in the method of this embodiment. Step S101 is executed to generate forwa...

Embodiment 2

[0056] This embodiment provides another forward error correction feedback information transmission method. The scheme in the present invention involves the sender and receiver of the forward error correction feedback information. The scheme in this embodiment is mainly aimed at the forward error correction information receiver. For a description of the steps performed, please refer to the image 3 , the method includes:

[0057] S301: Receive the media data packet sent by the opposite end;

[0058] S302: Analyze the media data packet to obtain forward error correction feedback information;

[0059] S303: Perform corresponding FEC coding control processing according to the FEC feedback information.

[0060] In step S301, the received media data packet sent by the opposite end includes media data and forward error correction feedback information generated by the opposite end. Usually, the media data packet is transmitted through the RTP protocol, the media data is encapsulate...

Embodiment 3

[0065] This embodiment provides a forward error correction feedback information transmission device, please refer to Figure 4 , the device includes an information generation module 41, an encapsulation module 42 and a data packet sending module 43, the information generation module 41 is used to receive the peer media data packet, determine the packet loss rate, and generate forward error correction feedback information for the packet loss rate. The encapsulation module 42 is used to encapsulate the forward error correction feedback information into a media data packet, and the media data packet also includes media data to be sent to the opposite end. The data packet sending module 43 is used to send the encapsulated media data packet to the opposite end; make the opposite end perform corresponding FEC coding control processing according to the FEC feedback information in the media data packet.

[0066] The forward error correction feedback information includes: the current n...

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Abstract

The invention provides a forward error correction feedback information transmission method and device. The forward error correction feedback information transmission device receives a media data packet of an opposite terminal, determines the packet loss rate, generates forward error correction feedback information for the packet loss rate and packages the forward error correction feedback information to the media data packet, wherein the media data packet comprises media data sent to the opposite terminal; and then the forward error correction feedback information transmission device sends the media data packet to the opposite terminal, and therefore the opposite terminal can conduct corresponding forward error correction control processing according to the forward error correction feedback information in the media data packet. The problems that when forward error correction feedback is conducted according to an RTCP, forward error correction coding redundancy adjustment and data recovery are slow, and the user experience is poor can be effectively solved; and the effects of adjusting forward error correction coding redundancy in real time, accelerating data recovery and improving the user experience are achieved.

Description

technical field [0001] The invention relates to the technical field of multimedia transmission, in particular to a forward error correction feedback information transmission method and device. Background technique [0002] With the development of information technology, the use of multimedia is becoming more and more extensive. The so-called multimedia refers to a kind of human-computer interactive information exchange and dissemination media that combines two or more media. The media used include text, pictures, photos, sound, animation and video, as well as the interactive functions provided by the program. When multimedia data is transmitted on the Internet, the RTP protocol (Real-time Transport Protocol, Realtime Transport Protocol) is usually used to encapsulate and then transmit through the network. Considering that multimedia data has relatively high real-time requirements, the application of media data transmission using RTP is usually carried on the UDP protocol (U...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L29/06
CPCH04L1/0026H04L1/004H04L65/65H04L1/00
Inventor 郑可馨
Owner ZTE CORP
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