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Control method and system for cells

A technology for controlling systems and cells, applied in transmission systems, radio transmission systems, access restrictions, etc., can solve the problems of changing the shape of base station cells without benefit, and achieving effective operation and maintenance

Inactive Publication Date: 2002-05-01
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the base stations are too far apart to transmit signals between them, even if the system has the capability to perform any conventional means, that capability is useless
Therefore, the cell shape of the base station cannot be changed without benefit

Method used

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  • Control method and system for cells
  • Control method and system for cells
  • Control method and system for cells

Examples

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Embodiment Construction

[0053] Several embodiments of the present invention are described in detail below with reference to the accompanying drawings. First, we explain the environment in which there is a radio communication system B covering a serviced small cell, and a radio communication system A covering a large cell and including an area where the system cannot provide a service.

[0054] figure 1 A diagram showing a cell configuration of the radio communication system according to the first embodiment of the present invention. The larger circle represents the service provision area of ​​the radio communication system A, and the smaller circle represents the service provision area of ​​the radio communication system B. Reference characters A1 to A3 represent base stations of the radio communication system A, reference characters B1, B2, . . . , Bn represent base stations of the radio communication system B, and reference character D represents a terminal such as a mobile station.

[0055] Suc...

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Abstract

The present invention allows the cell shape of any base station in operation to be changed, thereby enabling services to be provided according to the needs. A mobile terminal attempts to synchronize with a perch channel to thereby check whether or not it can receive the signal, thereby determining whether it belongs to the cell of the base station. The mobile terminal uses the GPS to obtain location information to identify the location and notifies a cell control apparatus of results for cell determinations and location information. The cell control apparatus selects a base station for which the corresponding cell shape is to be changed, on the basis of the results for cell determinations and the location information. The cell control apparatus instructs the selected base station to change its cell shape. The base station changes its cell shape according to the instruction.

Description

technical field [0001] The present invention relates to a cell control method and a cell system, in particular to a cell control method and a cell system with the following technical features, collecting information on cells that can be served and non-cells that cannot be served and changing the installed non-cell base stations service area. Background technique [0002] In a mobile communication system, the service area of ​​a base station is determined by the transmission power of a channel to which a mobile station first tries to synchronize after searching for each base station (hereinafter referred to as a "perch channel"). Turning on the power of the mobile station terminal is to receive the service, and all the terminals located in the service area can receive the signal through the corresponding placement channel in order to search for the base station to which they can connect. The transmission power of the placement channel is usually determined in advance, taking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04W16/00H04W16/28
CPCH04W16/28H04W16/00H04W48/16H04W8/08H04W16/24
Inventor 佐藤嬉珍梅田成视
Owner NTT DOCOMO INC
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