A vertical handover decision control method and system between heterogeneous wireless networks

Abstract

The present invention provides a vertical handover decision control method and system between heterogeneous wireless networks. The method includes: S1, when the connection between the mobile user terminal and the current network does not meet the service requirements of the mobile user terminal, the mobile user terminal meets the requirements of the mobile terminal in the scanning list. All the base stations of the heterogeneous network required by the service of the user end send handover requests; S2, all the base stations that receive the handover requests transmit the handover requests to the vertical handover controller through their respective wireless sensors; S3, the vertical handover controller according to the wireless sensor The stored historical channel resource allocation and usage information of each candidate base station calculates the blocking probability of each candidate base station, and switches and connects the mobile user terminal to the base station with the smallest blocking probability. The present invention provides a vertical handover decision control method and system among heterogeneous wireless networks. The vertical handover controller uses the channel resource usage information of each base station as the judgment basis for the vertical handover of the mobile user terminal, so that the judgment result is more accurate.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a vertical handover decision control method and system among heterogeneous wireless networks. Background technique [0002] The rapid development and evolution of mobile communications has caused a rapid expansion of the number of heterogeneous networks. In the foreseeable future, our wireless network environment will be filled with a large number of heterogeneous networks of different formats, specifications and standards. And because of market competition and the principle of complementarity, these heterogeneous networks will gradually determine their own market positions and be fully integrated on the platform of the next generation network. Therefore, heterogeneous network integration will become a trend that 3G, 4G and further future networks have to face. In the future wireless network environment, seamless handover between heterogeneous networks is essenti...

AI Technical Summary

Problems solved by technology

Compared with horizontal switching, vertical switching occurs in networks with different structures, and its switching methods and implementation are more complicated and difficult

[0004] In the prior art, the judgment basis for vertical handover is obtained through communication with the mobile terminal equipment, and how to handover is determined according to the attributes of each network acquired by the mobile terminal. However, the attribute information of each network learned by the mobile equipment terminal is limited, and it is impossible Understand the normal load situation of each network

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