Data receiving and transmitting methods, devices and equipment

Abstract

The invention is applicable to the field of communication technology, and provides data receiving and transmitting methods, devices and equipment. The data transmitting method comprises the steps of:adding a sequence number for identifying a transmitting sequence of a data packet to a packet header of the transmitted data packet, wherein the sequence number is used for identifying the unreceiveddata packet by a receiving end; if the receiving end returns the sequence number of the unreceived data packet, storing the sequence number of the unreceived data packet to a preset packet loss list;detecting whether the packet loss list is empty, and if the packet loss list is not empty, transmitting the data packet corresponding to the sequence number stored in the packet loss list to the receiving end. According to the method, a packet loss list is created at a transmitting end to store the sequence number of the data packet that is not received by the receiving end, and then the sequencenumber in the packet loss list is transmitted to solve the problem of packet loss during transmission using a user datagram protocol in the prior art.

Description

technical field

[0001] The invention belongs to the technical field of communication, and in particular relates to a data sending and receiving method, device and equipment. Background technique

[0002] In the field of computer communication technology, in order to realize the communication between one host and another host in the network, that is, the communication between the sending end and the receiving end, it is necessary to set up a network protocol. Among them, a network protocol is a collection of rules, standards or agreements established by hosts at different ends of a computer network for data exchange. For example, if a microcomputer user communicates with a mainframe operator in the network, since the two data terminals use different character sets, the commands entered by the operators do not know each other. In order to enable the two parties to communicate, it is stipulated that each terminal must first convert the characters in its own character set to th...

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