Base-station cell design method and base-station cell design apparatus in mobile communication system

Abstract

The above base-station cell design method is for sequentially adding base stations, and a technique of which throughput is few is employed for a radio-wave propagation characteristic evaluation to be made in this addition, and a technique of which the throughput is much, but which is of high-precision, more specifically, a technique such as the ray tracing is applied for the radio-wave propagation characteristic evaluation to be made after addition. The result of the high-precision radio-wave propagation characteristic evaluation to be made after this addition is put to practical use for estimating an interference quantity in selecting the arrangement location of the base station to be added newly. This allows the quantity of the radio wave analytic processing, which accounts for a large majority of the base-station cell design processing, to be reduced, thus enabling a fast base-station cell design.

Description

technical field [0001] The present invention relates to a method and device for designing a base station coverage area in a wireless communication system. More specifically, the present invention relates to a base station coverage area design technique such as base station layout and base station parameter setting in a mobile communication system. Background technique [0002] The following uses FIG. 17 to illustrate a traditional base station coverage area design technique. The base station candidates are arranged at the positions shown in black squares A02 to A06 on the service area A11 to evaluate the ratio of the areas A01 and A07 to A10 to be covered by the above base station candidate group to the service area A11, ie the area coverage. Similarly, the area coverage is also evaluated for other deployment positions to repeat its evaluation until a base station arrangement pattern is obtained in which the desired area coverage is achieved. If base station installation of...

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Problems solved by technology

[0020] In addition, any of the above-mentioned prior art is only used for the optimization purpose of AP layout, and does not show the setting method of various design parameters (transmission electric power, channel allocation, etc.)

In addition, if a large area is developed by multiple stations, the deviation of the traffic density depending on the location becomes apparent; however, the traffic density is not reflected in the coverage area design of any of the above-mentioned prior art

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