Hierarchy-based heterogeneous network joint access control method

Abstract

The invention relates to a hierarchy-based heterogeneous network joint access control method. A terminal and a network side both have an access judgment function; the terminal carries out judgment and selection on first-level access networks according to simple or single condition of wireless network signal intensity, user network-selecting preference, service type and movement speed and the like; and only when the judgment cannot be carried out through the simple condition, the network side carries out judgment on second-level access networks, that is, according to the information of position where the terminal locates, and by utilizing an entropy evaluation method and an improved AHP analysis method, network utility is comprehensively calculated, and a network, of which the utility is the largest, is selected to notify the terminal to carry out service access, thereby realizing load balance of terminal service being accessed to the appropriate network and heterogeneous network. The method not only can improve the whole system access judgment efficiency, thereby reducing load of a core network, but also can guarantee customer service to be accessed to the appropriate network, thereby fully utilizing radio resources and reducing access reject rate.

Description

technical field [0001] The invention relates to the fusion network technology of a cellular network and a WLAN in the field of information technology, in particular to a hierarchical-based joint access control method for heterogeneous networks. Background technique [0002] In recent years, with the rapid development of intelligent multi-mode terminals, the traffic of wireless data services has shown explosive growth, resulting in huge pressure on the network capacity of the original cellular network, and the cost is high and the speed is slow. The service requirements of the Internet are becoming more and more diverse. Different network access technologies have their own strengths and weaknesses in terms of system capacity, coverage, data rate, mobility support capability, tariff, etc. The transmission network of a single technology cannot meet all the above-mentioned requirements. The needs of users for services require the integration of multiple wireless access networks ...

AI Technical Summary

Problems solved by technology

However, these heterogeneous network access decision algorithms, on the one hand, most access selection strategies one-sidedly rely on some decision parameters, such as network status parameters, without comprehensive consideration of actual application scenarios, user preferences, service characteristics, and network characteristics. The result of the access selection decision is not necessarily the most suitable network for the user

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