Planning a Cell-Centered Area Division Method in Personal Communication Networks

Abstract

The invention discloses an area division method for realizing planning by taking a cell as a center in a personal communication network. The method comprises the following steps of: defining location management cost, and including a certain neighbor cell of a location area LAi into pilot calculation according to an algorithm; 2, calculating cost DeltaCk by which the cost is increased or decreased after each neighbor cell is included in the location area LAi one by one; 3, selecting the neighbor cell making the DeltaCk minimum, and performing a fourth step; and 4, including the neighbor cell making the DeltaCk minimum to form the location area and returning to the second step to continue calculating the DeltaCk by which the cost is increased or decreased after the neighbor cell of the location area is included into the location area if the DeltaCk is lower than 0, and stopping including the neighbor cell making the DeltaCk minimum into the location area LAi to finish the planning of the location area LAi if the DeltaCk is more than or equal to 0. By the division method, association among the cells in the same location area is high, and the location management cost can be reduced.

Description

technical field [0001] The present invention provides a method for area division in a personal communication network, especially technically providing a method of planning a location area centered on a cell and based on the correlation between the cell and adjacent cells, so as to reduce the cost of location management Region division method. Background technique [0002] The cost of location management in personal communication network (PCS) can be divided into two parts: location update cost (location update cost) and location search cost (paging cost), and location update cost plus location search cost is the cost of location management in personal communication network The total cost of signal processing, when the location area (LocationArea, LA) size is increased to reduce the location update cost, the location search cost will increase, conversely, if the location area size is reduced to reduce the location search cost, the location update cost will be Therefore, how ...

AI Technical Summary

Problems solved by technology

[0004] However, in the related technologies mentioned above, most of them plan one or more location areas for all cells. Such a planning method does not have a way to clearly express that the cells planned under the same location area are related. Very high, some communities may be located in areas with heavy traffic, and these people will not stay within the coverage area of ​​the community for a long time when they pass by, and most of the methods proposed in the past related literature have considered these large traffic The community is regarded as very relevant. Such a judgment method will also judge people passing by, causing many unnecessary parts to be calculated when calculating the location management cost.

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