Heterogeneous-network access decision method based on multi-network parallel transmission

Abstract

The invention discloses a heterogeneous-network access decision method based on multi-network parallel transmission. In the method, a multi-network selection problem is regarded as a multi-network convergence scheme selection problem and relative approximate degree of each candidate network convergence scheme and a positive ideal scheme is calculated and a multi-network convergence scheme capable of providing a best service quality is selected so that user throughput is improved, power consumption and cost, corresponding to a unit throughput of the user, are reduced and load balance of a network is ensured. Specific steps are as follows: any non-void subset of a set of all accessible networks of a user is used as a convergence scheme and convergence schemes which meet a threshold condition become candidate network convergence schemes. An ideal-value-approaching ranking method is adopted to calculate the relative appropriate degree of each convergence scheme and the positive ideal scheme, and the convergence scheme capable of providing the best service quality is selected as a multi-network access scheme so that multi-network parallel transmission is realized.

Description

[0001] technical field [0002] The invention belongs to the technical field of communication, and relates to a heterogeneous network access decision method based on multi-network parallel transmission. [0003] Background technique [0004] With the rapid development of wireless access technologies, the development trend of next-generation networks is a heterogeneous network in which various access technologies work together. Various wireless access technologies have their own advantages in coverage, system capacity, service quality, and mobility support, and are difficult to replace each other. Therefore, it is necessary to use as many resources as possible to meet user service requirements. In the heterogeneous converged network environment, the heterogeneity and difference of the network are relatively large. The user first needs to select the network in the network initialization state, and then as the user's geographical location changes, the service changes, and the ...

AI Technical Summary

Problems solved by technology

[0006] However, the current network selection problem is limited to the fact that users can only access a single network. With the continuous improvement of terminal processing capabilities, it will become possible for multi-mode mobile terminals to connect to multiple wireless networks at the same time.

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