Network selection method power wireless-communication heterogenous multi-network environment

Abstract

The invention provides a network selection method in the power wireless-communication heterogenous multi-network environment. The method comprises the following steps: S1, intercepting the service request sent by a terminal, or intercepting signals of networks, where the terminal is located, and judging whether the networks is in a performance degradation state or not according to the intercepted network signals; S2, triggering the network selection: according to the service type and the network performance, building a network selection model, determining the decision attributes of the network, sorting candidate networks according to the decision attributes, and screening the optimal network. According to the network selection method provided by the invention, the candidate networks can be sorted well, and the optimal network can be screened out for allowing the terminal of power equipment to be accessed, so that the communication service quality of an electric power system is guaranteed, and the resource utilization rate is increased.

Description

technical field [0001] The invention relates to the field of electric power communication, in particular to a network selection method in a heterogeneous multi-network environment of electric power wireless communication. Background technique [0002] The smart grid realizes the vertical penetration and horizontal integration of massive information by layering and grading the basic information flow. It needs to use the power communication network to implement all-round, dynamic, intelligent It is required that the power communication network can support flexible access to power services; the power wireless communication network supports a large number of users, high concurrency of services, and a complex operating environment. Any single communication system cannot meet all needs. It is a hybrid coexistence of heterogeneous multi-networks such as TD-LTE wireless communication private network, WiMAX wireless communication private network, smart grid neighborhood area network ...

AI Technical Summary

Problems solved by technology

[0003]For the terminals of the power system, the heterogeneous multi-network coexistence of power communication can realize seamless coverage, cover different areas, and support multi-mode terminal access coverage Any network in the area, however, there are differences in the architecture and QoS (Quality of Service) performance provided by different networks, the terminal needs to evaluate the performance of each network based on its own business needs, so as to select the best network access, There are many reasons that can trigger network selection: first, different access networks adopt different access specifications, have different transmission characteristics and QoS guarantee capabilities; The quality is low, and the waste rate of system resources is high. However, how to choose the best network makes the terminal access of the power system a technical difficulty in power communication. At present, there is no effective method and equipment that can solve the above difficulties

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