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User datagram protocol message processing method and device

一种用户数据报、协议报文的技术，应用在数据交换网络、数据表示错误检测/纠正、数字传输系统等方向，能够解决用户数据报协议音视频流质量影响等问题

Active Publication Date: 2007-03-28
ZHEJIANG UNIVIEW TECH CO LTD
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for processing user datagram protocol messages, so as to solve the problem in the prior art that network packet loss and disorder affect the quality of user datagram protocol audio and video streams

Method used

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  • User datagram protocol message processing method and device
  • User datagram protocol message processing method and device

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Embodiment Construction

[0115] The present invention will be further described below with specific embodiments in conjunction with the accompanying drawings.

[0116] A kind of processing method of UDP message of the present invention, as shown in Figure 2, comprises the following steps:

[0117]S201. Add a redundancy check block and a check identification code to the message to be sent; wherein, the redundancy check block stores the result of the redundant calculation of the data part in at least one message before the message to be sent, and checks The identification code is used by the receiving end to identify the redundant check block, and to identify the original sequence of the message;

[0118] S202, after receiving the message, the receiving end judges whether the current message is lost according to the verification identification code in the message, and if so, then go to step S203; packet loss, disorder and error of UDP messages may occur during network transmission After receiving the m...

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Abstract

The invention discloses a user datagram protocol message processing method, comprising: adding redundancy check block and check identification code in a to-be-sent message; and after determining the current message is lost, a receiving end correct errors according to data part and / or redundancy check block of a message related with the lost message and recovers the data part of the lost message. In addition, it discloses a user datagram protocol message packing and unpacking method and transmitting and receiving device. And it improves message data transmission reliability, thus improving audio-video quality.

Description

technical field [0001] The invention relates to the technical field of network message transmission, in particular to a method and device for processing user datagram protocol messages. Background technique [0002] As a member of the TCP / IP (Transmission Control Protocol / Internet Protocol, Transmission Control Protocol / Internet Protocol) network transport layer protocol family, UDP (User Datagram Protocol, User Datagram Protocol) is mainly used to support those who need to communicate between computers. A web application that transfers data. Unlike TCP, the UDP protocol does not provide a guarantee mechanism for data transmission. If a message is lost during the transmission from the sender to the receiver, the protocol itself cannot make any detection or prompt. [0003] Since UDP eliminates the reliable information transmission mechanism, functions such as security and sorting are handed over to upper-layer applications to complete, which greatly reduces the execution ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06H04L12/56H04L1/00H03M13/09
CPCH04L1/0061H04L1/0072H03M13/03
Inventor 李玉天赵钢
Owner ZHEJIANG UNIVIEW TECH CO LTD
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