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Method and system for ARQ controlling of multi-media data

A technology of multimedia data and multimedia data packets, which is applied in the field of ARQ control of multimedia data, can solve the problems that data packets cannot be decoded correctly, and achieve the effect of improving the decoding accuracy and reducing the influence of decoding

Inactive Publication Date: 2013-12-04
ZTE CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the main purpose of the present invention is to provide a kind of ARQ control method and system of multimedia data, to solve the problem that the data packets cannot be correctly decoded due to discarding multimedia data packets with high priority when performing ARQ control

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  • Method and system for ARQ controlling of multi-media data
  • Method and system for ARQ controlling of multi-media data
  • Method and system for ARQ controlling of multi-media data

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Embodiment Construction

[0034] In the ARQ control scheme for multimedia data of the present invention, according to the current network state, preferably the network packet loss rate, and the priority of multimedia data packets, data packets with low priority are selectively discarded, so as to minimize the impact on decoding.

[0035] Such as image 3 Shown is a schematic diagram of an ARQ control method for multimedia data in the present invention, including:

[0036] Step 301, acquire the lost multimedia data packet, the priority information of the lost multimedia data packet and the current network status.

[0037] In practical applications, the lost multimedia data packet may carry its own priority information. Table 1 shows the format of a multimedia data packet, where the loss_priority field carries the priority information of the multimedia data packet. Preferably, the value of the loss_priority field corresponding to a higher priority can be set to be smaller. Of course, other setting metho...

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Abstract

Disclosed in the invention is an automatic repeat request (ARQ) controlling method of multi-media data. The ARQ controlling method comprises the following steps: obtaining a lost multi-media data packet, priority information of the lost multi-media data packet, and a current network condition; and employing a corresponding re-transmission strategy to re-transmit the lost multi-media data packet. In addition, the invention also discloses an ARQ controlling system for the multi-media data. A problem that correct decoding relying on a multi-media data packet with the high priority level can not be carried out due to abandoning of the multi-media data packet with the high priority level when ARQ controlling is carried out can be solved.

Description

technical field [0001] The present invention relates to the technical field of streaming media, in particular to an ARQ control method and system for multimedia data. Background technique [0002] With the popularization of broadband network and the development of multimedia technology, the application of streaming media technology is becoming more and more extensive, such as digital broadcasting services, IPTV services, mobile streaming media services and so on. The common feature of these services is that after the multimedia data is packaged and packaged according to certain rules, the data is distributed through the underlying communication network. For example, in an IPTV application, TS over RTP (Real-time Transport Protocol, Real-time Transport Protocol) or TS over UDP (User Datagram Protocol, User Datagram Protocol) are used to distribute through the IP network. In the field of digital broadcasting, TS (Transport Stream, Transport Stream) is directly used as a trans...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/235H04N21/238H04N21/266H04N21/2662H04N21/434H04N21/435H04N21/442H04N21/6375
Inventor 赵宇
Owner ZTE CORP
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