Method and device for data transmission

A transmission method and transmission equipment technology, applied in the field of data transmission, can solve problems such as overtime retransmission of data packets, technical problems that cannot solve real-time transmission, network congestion, etc.
CN107634908BActive Publication Date: 2021-06-08HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2021-06-08

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Abstract

The present invention provides a data transmission method. The method includes: the sending end obtains the number of redundant data packets to be transmitted according to the pre-acquired network state variable and the pre-acquired transmission success rate; The number of redundant data packets is used to obtain a redundant data packet scheduling method; the sending end sends redundant data packets according to the redundant data packet scheduling method. According to the above method, the adaptive scheduling of redundant data packets can be realized, and the quantity of redundant data packets can be minimized while meeting the real-time requirement of transmission, so as to reduce the network burden.
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Description

technical field

[0001] The embodiments of the present invention relate to the field of data transmission, in particular to data processing and redundant data transmission. Background technique

[0002] The basic strategy for dealing with network packet loss is the timeout retransmission mechanism in the TCP (Transmission Control Protocol, Transmission Control Protocol) protocol. The principle is that when a packet loss occurs in the network, the timeout retransmission mechanism is used to retransmit unacknowledged data. However, this passive retransmission mechanism generally has a large transmission interval, so there is a technical problem that real-time services have high requirements on delay. The more advanced method of avoiding retransmission in the existing technology is to use linear network coding technology to perform active redundant transmission of data, that is, to transmit data packets to be transmitted according to a small, fixed time interval while transmitt...

Claims

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