Access network selection device and method based on Hidden Markov Model

Abstract

The invention discloses an access network selection device and method based on Hidden Markov Model, and belongs to the technical field of wireless communications. According to the access network selection device and method based on Hidden Markov Model, based on service characteristic sensitivity requirements of customers and network state characters, access network optimization selection is conducted to customers who are located in the areas covered by heterogeneous wireless networks, and thus the quality of service (QoS) for the customers is guaranteed and the network performance is optimized. The network access selection method includes the following steps: a. service sensitivity parameters are analyzed and confirmed according to the application state and use preference of the costumers to establish service requirement vector of the customers; b. access networks are modeled in the form of Hidden Markov Model according to historical data of the customers and current network state information; c. the access network of the customers is optimized according to the current needs of the customers, the network attribute information and the network state transition model. The network access selection device and method based on Hidden Markov Model supports a network integration mode, is suitable for heterogeneous wireless network environments, and capable of achieving self-adaptive and intelligent network access based on the network steady state and the service needs of the customers.

Description

technical field [0001] The present invention relates to the technology in the field of heterogeneous communication, and in particular, to a management method for selection of heterogeneous access networks. Background technique [0002] With the rapid development of wireless communication technology and the rapid popularization of terminal mobile applications, the next-generation wireless network will support the fusion and coexistence of multiple wireless access technologies including cellular networks, wireless local area networks (WLAN), and Worldwide Interoperability for Microwave Access (WiMAX). , user equipment with multi-mode interface can perform seamless handover between different access technologies to achieve user service continuity and high-quality service experience. In the scenario where multiple access networks coexist, the user terminal should select the optimal network for access according to the network status characteristics and application service requirem...

AI Technical Summary

Problems solved by technology

[0005] The above research is mainly based on the characteristics of the current state of the network, combined with user business needs, to realize access network selection, but because user service experience and access network performance are complex system issues affected by multiple factors, based on game theory and utility function modeling Unable to comprehensively reflect the steady-state characteristics of the network

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