Data transmission method and device

Abstract

The invention discloses a data transmission method and device, comprising: determining the network relay service assigned to the sending end; the sending end registers with the network relay service, and waits for the matching registration of the receiving end; After receiving the pairing registration of the receiving end within a set time, the sending end sends signaling control information to the receiving end through the signaling control service; if the sending end receives the pairing registration of the receiving end within a second preset time When the information is written, the channel connection type is determined, and a data transmission channel is established according to the channel connection type; the sending end sends data to the receiving end through the data transmission channel. The data transmission method and device have simple implementation process, fast response speed and high reliability.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission method and device. Background technique [0002] With the rapid development of mobile devices and the improvement of network transmission speed, it is becoming more and more frequent to use Internet resources to realize communication between devices at both ends, and to conduct multimedia voice calls, videos, and file transfers between people. In order to ensure the communication effect, it is required that the connection rate of the connection channel must maintain a very high ratio, preferably 100%, and the response speed must be fast. In occasions with high reliability requirements such as file data transmission, it is necessary to ensure that the data packet is transmitted. No loss occurs. [0003] In the prior art, there are mainly the following two data transmission methods: [0004] Method 1: Using a data transmission method between ter...

AI Technical Summary

Problems solved by technology

[0007] The problem with this method is: when both ends try to connect through direct connection, pre-registration is required, and then the NAT (ConeNAT, restricted ConeNAT, port restricted ConeNAT, SymmetricNAT) device type of the users at both ends is first determined by querying. Moreover, there are too many combinations of NAT types at both ends, and the judgment process is too complicated

[0009] Although this method can ensure that both ends of the line can establish a communication channel, the technical problem is that only one server relay channel can be used during data transmission. In addition to the delay caused by the limitation of the transmission rate, the Affect the timeliness of the delivery of other data messages of the instant messaging server

[0010] From the above introduction, it can be seen that the data transmission methods in the prior art are either too complicated, or the transmission rate is limited, and the data transmission effect is not ideal. There is an urgent need for a data transmission method with simple implementation and fast response.

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