Method for selecting terminal access network in heterogeneous multi-wireless network covered scene

Abstract

The invention discloses a method for selecting terminal access network in heterogeneous multi-wireless network covered scene, mainly overcoming the defect that influence of a policy selected by a user to the whole network is not considered in network selection process of the existing method. The method is realized by the following steps: in a typical heterogeneous network overlapped scene, designing and optimizing a target function and constraint conditions; solving optimal solution of the target function according to concrete parameters of network and creating a policy library; and guiding anew user or mobile user to select appropriate network by using the optimal state obtained by searching the policy library, and guiding multiple users to select network while network resource use efficiency is reduced. The network selection method disclosed by the invention not only can meet service requirement of the user, but also can transfer services in the network with heavier load to an idlenetwork, so as to cause all the networks to operate efficiently and improve use efficiency of network resource, thus being applicable to the requirements of the existing network and various novel networks in the future.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a method for selecting an access network by a multi-mode terminal in multiple heterogeneous wireless access network coverage systems, and is applicable to existing cellular networks, WLAN, 3G and other networks as well as various future networks. A new type of access network. Background technique [0002] With the rapid development of wireless network technology, more and more wireless network standards have been proposed and gradually put into practical application. The next generation wireless communication system is an open heterogeneous wireless network system that can organically integrate existing and future wireless access networks. The existing and emerging new networks have great differences in access technology, coverage, network capacity and service capabilities provided, which largely meet people's growing communication needs, but at the same time Enabl...

AI Technical Summary

Problems solved by technology

However, the obvious disadvantage of these algorithms is that users only consider their own best experience in the process of network selection, and do not consider the impact of their own selection strategies on the entire network. The load is not balanced, resulting in users in some areas not getting enough network resources, while the network resources in other areas are idle, and the use efficiency of network resources is low

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