Wireless base station position setting method, wireless communication system, and program

• US 20050186972A1
• Filed: 12/06/2004
• Published: 08/25/2005
• Est. Priority Date: 12/18/2003
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Kato, Takeshi, Ogino, Atsushi
• Granted Patent: US 7,158,799 B2
• Time in Patent Office: Days
• US Class Current: 455/457
• CPC Class Codes: H04W 16/18 Network planning tools

Abstract

To efficiently obtain and register the position of a base station in a database. A map or a drawing, such as a plan of a building, is read and displayed on display unit (114). Then, on the basis of the real coordinates of a first reference position P0 on the display unit and a real distance per a unit of display, the real coordinates of a second reference position P1 set on the display unit (114) are obtained. Then, on the basis of the real coordinates of the second reference position and an offset from the second reference position to the base station (140), the real coordinates indicating the position P2 where the base station is located are obtained, and these real coordinates indicating the position P2 are registered in the database.

Claims

1. A method of setting in a database a position of a base station performing wireless communication with a terminal, the method comprising the steps of:

displaying a map or a drawing including the position of the base station as image information on display unit;

setting a scale ratio of the image information;

setting a first reference position from the displayed image information;

setting, on the display unit, a second reference position from where the position of the base station can be measured;

setting the position of the base station as an offset measured from the second reference position;

obtaining real coordinates of the second reference position with respect to the first reference position on the basis of the scale ratio and adding the measured offset to the real coordinates of the second reference position to obtain coordinates of the position of the base station; and

registering the coordinates of the position of the base station in the database.

2. The base station position setting method according to claim 1, wherein the step of registering in the database registers the coordinates of the position of the base station in combination with an identifier unique to the base station.

3. The base station position setting method according to claim 1, wherein the base station comprises signal unit that indicates its existence when receiving a predetermined signal, and the method transmits the predetermined signal to the base station after obtaining the coordinates of the position of the base station.

4. The base station position setting method according to claim 3, wherein the predetermined signal comprises an identifier unique to the base station and a predetermined command.

5. The base station position setting method according to claim 1, wherein the image information is a previously read map or drawing that includes the position of the base station.

6. A wireless communication system that detects a position of a terminal by transmitting/receiving of a radio signal between a base station and the terminal, the system comprising:

display unit that displays, as image information, a map or a drawing including a position of the base station;

reference position setting unit that sets a first reference position as an origin of a coordinate system from the displayed image information and that sets, on the display unit, a second reference position from where the position of the base station can be measured;

scale ratio setting unit that sets a scale of the image information;

coordinate calculating unit that receives the position of the base station as an offset measured from the second reference position, obtains real coordinates of the second reference position with respect to the first reference position on the basis of the scale ratio, and adds the offset to the real coordinates of the second reference position to obtain coordinates of the position of the base station; and

a database that registers the coordinates of the position of the base station.

7. The wireless communication system according to claim 6, wherein, in the database, the coordinates of the position of the base station is registered in combination with an identifier unique to the base station.

8. The wireless communication system according to claim 6, wherein the base station comprises signaling unit that indicates its existence when receiving a predetermined signal, and the system transmits the predetermined signal to the base station after obtaining the coordinates of the position of the base station.

9. The wireless communication system according to claim 8, wherein the predetermined signal comprises an identifier unique to the base station and a predetermined command.

10. The wireless communication system according to claim 6, further comprising reading unit that previously reads the map or drawing including the position of the base station and generates the image information.

11. A program for setting in a database a position of a base station performing wireless communication with a terminal, the program controlling a computer to execute the processings of:

displaying a map or a drawing including the position of the base station as image information on display unit;

setting a scale ratio of the image information;

setting a first reference position from the displayed image information;

setting, on the display unit, a second reference position from where the position of the base station can be measured;

setting the position of the base station as an offset measured from the second reference position;

obtaining real coordinates of the second reference position with respect to the first reference position on the basis of the scale ratio and adding the measured offset to the real coordinates of the second reference position to obtain coordinates of the position of the base station; and

registering the coordinates of the position of the base station in the database.

12. The program according to claim 11, wherein the processing of registering in the database registers the coordinates of the position of the base station in combination with an identifier unique to the base station.

13. The program according to claim 11, wherein the base station comprises signaling means that indicates its existence when receiving a predetermined signal, and the program comprises a processing of transmitting the predetermined signal to the base station after obtaining the coordinates of the position of the base station.

14. The program according to claim 13, wherein the predetermined signal comprises an identifier unique to the base station and a predetermined command.

15. The wireless communication system according to claim 11, further comprising a processing of previously reading the map or drawing including the position of the base station and generating the image information.