Autonomous cell shaping method

• US 7,885,651 B2
• Filed: 06/18/2004
• Issued: 02/08/2011
• Est. Priority Date: 06/18/2004
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Akihara, Masaya
• Primary Examiner(s): Appiah; Charles N
• Assistant Examiner(s): Fahnert; Marisol
• Application Number:
  US11/578,700
• Publication Number:
  US 20070173259A1
• Time in Patent Office: 2,426 Days
• Field of Search: 455/466, 455/92, 455/67.1, 455/310, 455/403, 455/419, 455/422.1, 455/429, 455/432.1, 455436-445, 455/461, 455/522, 455/524, 455/560, 455/561, 455/423, 370328-338
• US Class Current: 455/423
• CPC Class Codes: H04W 16/10 Dynamic resource partitioning
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 52/247 where the output power of a terminal is based on a path parameter sent by another terminal
• CPC Class Codes: H04W 52/283 Power depending on the position of the mobile
• CPC Class Codes: H04W 52/343 taking into account loading or congestion level
• CPC Class Codes: H04W 52/50 at the moment of starting communication in a multiple access environment
• CPC Class Codes: H04W 8/265 for initial activation of new user
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A newly-installed wireless base station collects, in an on-demand manner, cell setting information that includes position information, transmission power information, and radio frequency information from one or more neighboring base stations without using radio wave information, and determines its own radio frequency and transmission power level based on the cell setting information.

Claims

1. An autonomous cell shaping method comprising:

collecting, in an on-demand manner, cell setting information that includes position information, transmission power information, and radio frequency information from an already installed neighboring wireless base station located near the newly-installed wireless base station without using radio wave information; and

determining by the newly-installed wireless base station its own radio frequency and transmission power level based on the cell setting information from the already installed neighboring wireless base station regardless of radio wave conditions, wherein

the collecting includes

generating position information on an installation location of the newly-installed wireless base station;

sending a request to obtain an address with generated position information to center equipment that manages addresses of wireless base stations constituting a network;

registering obtained address that is assigned by the center equipment, and contains area information identifying the installation location and a base-station serial-number information indicating serial numbers of wireless base stations in an area;

detecting an address of the neighboring base station based on the base-station serial-number information; and

collecting, via a router, the cell setting information from the neighboring base station to which detected address is assigned.

2. The autonomous cell shaping method according to claim 1, wherein

the determining includes

determining the transmission power based on the position information and the transmission power information such that an radio wave propagation range of the newly-installed wireless base station and that of the neighboring base station produce continuous coverage;

and

determining the radio frequency based on the radio frequency information.

4. The autonomous cell shaping method according to claim 1, wherein, when there is a change in transmission power level and radio frequency of a first base station, a second wireless base station that is located near the first base station updates cell setting information thereof based on new cell setting information of the first base station after the change.

6. The autonomous cell shaping method according to claim 1, wherein maintenance equipment that manages a network collects, in an on-demand manner, cell setting information from a base station in an area, and displays an arrangement status of cells in a neighborhood of the area without using radio wave information.

3. An autonomous cell shaping method comprising:

collecting, in an on-demand manner, cell setting information that includes position information, transmission power information, and radio frequency information from an already installed neighboring wireless base station located near the newly-installed wireless base station without using radio wave information; and

determining by the newly-installed wireless base station its own radio frequency and transmission power level based on the cell setting information from the already installed neighboring wireless base station regardless of radio wave conditions, wherein

the collecting includes

generating position information on an installation location of the newly-installed wireless base station;

sending a request to obtain an address with generated position information to center equipment that manages addresses of wireless base stations constituting a network;

registering obtained address that is assigned by the center equipment, and contains area information identifying the installation location and a base-station serial-number information indicating serial numbers of wireless base stations in an area;

detecting an address of the neighboring base station based on the base-station serial-number information; and

collecting, via a router, the cell setting information of the neighboring base station to which detected address is assigned from the center equipment.

7. The autonomous cell shaping method according to claim 3, wherein

the determining includes

determining the transmission power based on the position information and the transmission power information such that an radio wave propagation range of the newly-installed wireless base station and that of the neighboring base station produce continuous coverage;

and

determining the radio frequency based on the radio frequency information.

9. The autonomous cell shaping method according to claim 3, wherein, when there is a change in transmission power level and radio frequency of a first base station, a second wireless base station that is located near the first base station updates cell setting information thereof based on new cell setting information of the first base station after the change.

11. The autonomous cell shaping method according to claim 3, wherein maintenance equipment that manages a network collects, in an on-demand manner, cell setting information from a base station in an area, and displays an arrangement status of cells in a neighborhood of the area without using radio wave information.

5. An autonomous cell shaping method comprising:

collecting, in an on-demand manner, cell setting information that includes position information, transmission power information, and radio frequency information from an already installed neighboring wireless base station located near the newly-installed wireless base station without using radio wave information; and

determining by the newly-installed wireless base station its own radio frequency and transmission power level based on the cell setting information from the already installed neighboring wireless base station regardless of radio wave conditions, wherein

wireless base stations that constitutes a network are installed hierarchically, and

the collecting includes

generating position information on an installation location of the newly-installed wireless base station;

sending a request to obtain an address with generated position information to center equipment that manages addresses of the wireless base stations in the network, and informing the center equipment of a hierarchy level, at which the newly-installed wireless base station is located;

registering obtained address that is assigned by the center equipment, and contains area information identifying the installation location, a base-station serial-number information indicating serial numbers of wireless base stations in an area, and hierarchy level information specifying the hierarchy level;

detecting an address of the neighboring base station that contains area information and hierarchy level information identical to those contained in the obtained address based on the base-station serial-number information; and

collecting, via a router, the cell setting information of the neighboring base station to which detected address is assigned.

8. The autonomous cell shaping method according to claim 5, wherein

the determining includes

determining the transmission power based on the position information and the transmission power information such that an radio wave propagation range of the newly-installed wireless base station and that of the neighboring base station produce continuous coverage;

and

determining the radio frequency based on the radio frequency information.

10. The autonomous cell shaping method according to claim 5, wherein, when there is a change in transmission power level and radio frequency of a first base station, a second wireless base station that is located near the first base station updates cell setting information thereof based on new cell setting information of the first base station after the change.

12. The autonomous cell shaping method according to claim 5, wherein maintenance equipment that manages a network collects, in an on-demand manner, cell setting information from a base station in an area, and displays an arrangement status of cells in a neighborhood of the area without using radio wave information.