Group switching method based on service priority in blocking rate constraint

Abstract

The invention discloses a group switching method based on service priority in blocking rate constraint. According to the method, firstly group switching users in a network are distinguished according to service types, at the same time different priorities are distributed for different types of users, thus a priority queue is formed, and the users are switched orderly according to the priority queue. When the users are in the same priority, a blocking rate function is constructed, and through limiting the current blocking rate in given blocking rate constraint, the number of the users which can be switched at current time slot is determined. After the number of the users which can be switched is determined, only the above users can be switched at present, and thus a network congestion problem can be effectively avoided. The method comprises the following steps: (1) classifying the users and generating the priority queue, (2) determining the probability of networks selected by the users, (3) defining a switching blocking rate, (4) determining the number of the switched users in each time slot, and (5) executing the switching concretely.

Description

technical field [0001] The invention relates to a group switching method in a scene where multiple services exist, and belongs to the technical field of vertical switching in computer wireless heterogeneous networks. Background technique [0002] With the vigorous development of various wireless access technologies, wireless communication networks have shown a pattern of heterogeneous coexistence. A basic problem faced by users in a heterogeneous network is network selection, that is, how to select the best network that meets user needs. When users make network choices, they often just choose the best network for themselves. If a large number of users make network choices at the same time in an environment with dense users, it may happen that a large number of users choose the same network collectively. In this case, the resources of the network may be exhausted, resulting in network congestion and even damage to the performance of the entire wireless network system. [00...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the above method is that although this solution can avoid a large number of users switching at the same time, in the switching process, only the scenario of a single service is considered, and users of different types of services are not distinguished

When there are different types of services in the network, this solution still treats different types of services as the same type of services, so users of different types of services cannot get better performance, and at the same time, it cannot guarantee the priority of important real-time services get switched

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