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UDP-based reliable transmission method

A transmission method, a reliable technology, applied in the transmission system, digital transmission system, transmission data organization to avoid errors, etc., can solve problems such as lack of serial number, connection management and bandwidth resource management, complex packet division, and limited data packet size

Active Publication Date: 2016-11-16
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the resulting protocol portfolio still leaves a lot to be desired
For example, TCP lacks the establishment of multi-channel sockets to complete multi-channel communication. Due to its buffer mechanism, TCP packet division is very complicated.
UDP lacks mechanisms such as sequence numbers, connection management, and bandwidth resource management, and limits the size of data packets

Method used

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Embodiment Construction

[0065] The present invention will be further described below in conjunction with the accompanying drawings.

[0066] refer to Figure 1 to Figure 14 , a UDP-based reliable transmission method, the reliable transmission method is a reliable transmission protocol on the UDP layer, the reliable transmission protocol provides data transmission with multiple reliability requirements to meet the needs of different applications, including: Reliable transmission, unreliable transmission and out-of-order transmission;

[0067] The reliable transmission is used to provide reliable data transmission between two upper-layer applications. The received datagrams need to be confirmed, and the lost datagrams need to be retransmitted. The received datagrams are in the order of the reliable sequence numbers of the messages Submit to the upper application;

[0068] The unreliable transmission is used to provide unreliable data transmission between two upper-layer applications. The received dat...

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Abstract

The invention relates to a UDP-based reliable transmission method. It is a reliable transmission protocol on a UDP layer; the reliable transmission protocol comprises reliable transmission, unreliable transmission and out-of-order transmission; the reliable transmission is used for providing reliable data transmission between two upper applications; received data messages need to be confirmed; lost data messages need to be retransmitted; the received data messages are submitted to the upper applications according to the message reliable serial number sequence; unreliable transmission is used for providing unreliable data transmission between the two upper applications; the received data messages do not need to be confirmed; the lost data messages do not need to be retransmitted; the received data messages are submitted to the upper applications according to the message unreliable serial number sequence; the out-of-order transmission is used for providing out-of-order data transmission between the two upper applications; the received data messages do not need to be confirmed; the lost data messages do not need to be retransmitted; and the received data messages are submitted to the upper applications directly according to the receiving sequence. The UDP-based reliable transmission method disclosed by the invention is good in reliability.

Description

technical field [0001] The invention relates to a method for establishing a reliable transmission on the UDP layer, which is a UDP-based reliable transmission method. Background technique [0002] With the rapid development of Internet technology, network applications are growing rapidly. Applications have higher and higher requirements on the network. Usually game applications require the network to have low latency and be able to send and receive data frequently. TCP is a transport layer control protocol formulated by IETF, which is a connection-oriented, byte-stream-based, and reliable transmission control protocol. The TCP layer is an intermediate layer located above the IP layer and below the application layer. It provides reliable data transmission, congestion control and other functions for the application layer. [0003] TCP is not suitable for this situation because of its high latency and flow direction. UDP is a connectionless, datagram-based, unreliable tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/16H04L12/801H04L29/06
CPCH04L1/0078H04L1/1607H04L47/12H04L69/164H04L69/22
Inventor 徐志江万玉铸华惊宇彭宏张江鑫
Owner ZHEJIANG UNIV OF TECH
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