UDP (User Datagram Protocol) based data transmission method

A data transmission method and protocol technology, which is applied in the field of data transmission based on UDP protocol, can solve problems such as unreliable transmission, no connection of UDP protocol, and no way to line up at the receiving end, so as to broaden the scope of interconnection, save local resources, The effect of improving transmission efficiency
CN101778093AInactive Publication Date: 2010-07-14่’‹ไธ€
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
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Publication Date
2010-07-14
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a UDP based data transmission method which comprises the steps of: (S1) dividing a file to be transmitted into data pockets and sequencing the data pockets by a transmission terminal so that a receiving terminal can restore the data pockets into a transmitted file; (S2) setting three queues by the transmission terminal, when all data of one data pocket in a data queue waiting for being transmitted is transmitted, waiting for the response of the receiving terminal; and when the receiving terminal gives a response with successful receiving, deleting the information of the successfully transmitted data pocket by a data queue waiting for response; and when the response of the receiving terminal to the data pocket of the data queue waiting for response is time out, adding the data pocket in a re-transmitting data queue for waiting for being added in the data queue waiting for being transmitted to be transmitted again. The invention widens the interconnection of users among networks, greatly improves the network transmission efficiency, can be widely applied in data transmission based on internet technology and can ensure the reliability of data transmission.
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Description

technical field

[0001] The invention relates to a data transmission method in the Internet, more specifically, to a data transmission method based on UDP protocol. Background technique

[0002] TCP (Transmission Control Protocol), transmission control protocol, is mainly used to establish a virtual connection between hosts to achieve high reliability packet exchange. The IP protocol can divide and assemble IP data packets, but it is not clear whether the data packets are successfully sent to the target computer through the IP protocol. The use of the TCP protocol is different. In this protocol transmission mode, after the data packet is successfully sent to the target computer, TCP will request to send an acknowledgment; if the acknowledgment is not received within a certain time limit, then TCP will resend the data packet. . In addition, in the process of transmission, if out-of-order, lost and damaged data packets are received, TCP can also be responsible for recovery. ...

Claims

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