Handover method and device for a heterogeneous network

Abstract

Embodiments of the present invention provide a method and device for switching heterogeneous networks, the method comprising: obtaining parameters including packet loss rate and network load of each candidate network among a plurality of candidate networks, and using the obtained parameters as the candidate Decision parameters of the network; obtaining each preset service type and corresponding to each preset service type, at least one user-preferred preset weighting factor; for each preset service type, using the decision parameter and using the analytic hierarchy process, Calculate the weight of each decision parameter corresponding to each preset business type, and determine the weight vector corresponding to each preset business type; use the preset weight factor to adjust the weight vector corresponding to each preset business type; use the weight vector, Using the intuitionistic trapezoidal fuzzy multi-attribute decision-making algorithm, the score of each candidate network is calculated, and the candidate network with the highest score is determined as the target network, and the switch is triggered.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a heterogeneous network switching method and device. Background technique [0002] A heterogeneous network (Heterogeneous Network) is a type of network composed of computers, network devices and systems produced by different manufacturers. Heterogeneity means that two or more wireless communication systems use different access technologies, or use the same wireless access technology but belong to different wireless operators. [0003] The existing heterogeneous network is composed of 3G (3rd-Generation, third-generation mobile communication technology), 4G (4th-Generation, fourth-generation mobile communication technology), WLAN (Wireless Local Area Networks, wireless local area network) and other A heterogeneous network composed of wireless access technologies. Because the existing heterogeneous network is composed of multiple wireless access technologie...

AI Technical Summary

Problems solved by technology

However, in practical applications, due to the complex network environment of heterogeneous networks, various decision parameters affect each other, and the state of the network is dynamically changing.

In the case where various decision parameters influence each other and the network status changes dynamically, the existing heterogeneous network handover method can no longer meet the user's personalized needs for the network and related services, and the user experience is not good.

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