UDP-based rate adaptive transmission method in network environment
A technology of rate adaptation and transmission method, applied in the field of data transmission, can solve problems such as limiting the application of UDP transmission protocol, and achieve the effect of improving efficiency, ensuring reliability and efficiency
Inactive Publication Date: 2016-12-28
中科云投科技股份有限公司
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Problems solved by technology
When the network fluctuates greatly, when data is transmitted through the UDP transmission protocol, the problems of data packet loss and data transmission delay are serious, which limits the application of the UDP transmission protocol
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[0021] The present invention is described in detail below in conjunction with accompanying drawing:
[0022] Such as figure 1 As shown, the present invention provides a UDP-based rate adaptive transmission method in a network environment, comprising the following steps:
[0023] S1, the sending end splits the data to be transmitted into N data blocks to obtain a data block set {data block 1, data block 2...data block N}; wherein, N is greater than or equal to 2; let i=1;
[0024] S2, the sending end sends a sending message carrying data block i to the receiving end at the i-th sending rate based on the UDP protocol; when the receiving end receives the data block i from the sending end, the receiving end saves the The data block i, and then return to the sender an acknowledgment message that the data block i is successfully received.
[0025] In this step, when the sender sends data block 1, the initial sending rate is determined based on the number of data blocks and current...
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The invention provides a rate self-adaptive transmission method based on a UDP (User Datagram Protocol) under network environment. The rate self-adaptive transmission method based on the UDP under the network environment includes that to-be-transmitted data is split into N data blocks through a transmission terminal; a transmission message with a data block i is transmitted into a receiving terminal through the transmission terminal based on the UDP with an i transmission rate; whether the transmission terminal receiving a receiving terminal returned response message that the data block i is successfully received within a preset time interval or not is determined through the transmission terminal; if so, a current receiving rate of the receiving terminal is calculated through the transmission terminal according to the received response message; the i transmission rate of the transmission terminal is dynamically regulated to be an i+1 transmission rate through the transmission terminal according to the current receiving rate of the receiving terminal; and i is ordered to be equal to i+1 and above steps are circulated executed and ended when i is larger than N. According to the rate self-adaptive transmission method based on the UDP under the network environment, the transmission rate can be continuously regulated according to real-time network conditions, reliability and efficiency of data transmission can be guaranteed under the conditions that the network is unstable or multitask is concurred.
Description
technical field [0001] The invention belongs to the technical field of data transmission, and in particular relates to a UDP-based rate adaptive transmission method in a network environment. Background technique [0002] In recent years, with the rapid development of communication networks, the demand for transmitting various types of data through communication networks is also increasing. Due to the advantages of high real-time data transmission, the UDP protocol is gradually favored by users. However, unlike the TCP transmission protocol, the UDP transmission protocol is an unreliable transmission protocol, and usually transmits data at a fixed rate. Therefore, it is mainly applicable to networks with sufficient bandwidth and good stability. When the network fluctuates greatly, when data is transmitted through the UDP transmission protocol, the problems of data packet loss and data transmission delay are serious, which limits the application of the UDP transmission protoc...
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IPC IPC(8): H04L29/06H04L29/08H04L1/00
Inventor 梁赓李春晓赵焕军蒋步云
Owner 中科云投科技股份有限公司