Cocurrent data distribution method based on transmission control protocol (TCP) in heterogeneous networks

Abstract

The invention discloses a cocurrent data distribution method based on a transmission control protocol (TCP) in heterogeneous networks, which mainly solves the problems of low end-to-end transmission throughput and larger time delay of a single network in the prior art. The cocurrent data distribution method comprises the following implementation schemes of: 1, defining a distribution network element as a network entity where converging points of multiple heterogeneous networks in front of a server are located; 2, establishing TCP connection between the server and terminal equipment, and initializing parameters related to the TPC connection of each heterogeneous network in the distribution network element; 3, sending data by the server according to a business request of the terminal equipment; 4, sending the data to the terminal equipment according to the state of each heterogeneous network after reaching the distribution network element; 5, after the terminal equipment receives the data, relying ACK (Acknowledgement) information to the server; 6, after the distribution network element receives the ACK information, updating the network parameters; and 7, after the server receives the ACK information, repeating the step 3 to the step 7 till the data are sent completely. The cocurrent data distribution method is applied to cocurrent data transmission of the heterogeneous networks and capable of improving the end-to-end transmission performance.

Description

technical field The invention relates to the field of wireless communication, in particular to a concurrent data distribution method based on a transmission control protocol in a heterogeneous network, which can be used for concurrent data transmission in a heterogeneous network in a core network. technical background The rapid development of wireless communication technology has brought profound changes to people's work and lifestyle. While people are experiencing more and more convenience in obtaining information brought by communication technology, as wireless communication networks are developing towards high-speed and broadband, various wireless access technologies have emerged one after another, making the heterogeneity of the network more prominent . In the case that a single network resource is relatively small and cannot meet business needs well, in order to achieve the purpose of improving end-to-end throughput and reducing network transmission delay, it is necess...

AI Technical Summary

Problems solved by technology

Due to the dynamic change of the network topology, for a single user, the available network resource information is not only related to the standard adopted by the network and the environmental conditions of the physical channel, but also related to the traffic conditions requested by itself and other users in the network. As a result, it is generally difficult to obtain information about network conditions or network transmission capabilities accurately and in real time in existing networks, that is to say, it is difficult to obtain effective distribution basis to achieve concurrent transmission. Two networks, it is possible that the amount of data borne by one network is much greater than its carrying capacity, while the amount of data borne by the other network is much smaller than its carrying capacity. Due to the unbalanced data distribution, it may eventually lead to unbalanced traffic in some networks. Necessary congestion makes the effect of concurrent transmission of end-to-end heterogeneous networks worse than that of single network transmission

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