JP2002044714A - System for acquiring position of mobile telephone terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for acquiring the position of a mobile telephone terminal capable of specifying more precisely the current position of a mobile telephone terminal. SOLUTION: When a radio portion 1 receives a request for registration of position from a personal handy phone terminal, a position acquisition portion 4 is initiated by a position acquisition control portion 2. The position acquisition portion 4 reads, from a memory portion 3, the information for locating an adjacent radio station of which position is registered by the personal handy phone terminal before moving, and information for identifying a radio base station to which it moves, then identifying a detailed positional area in an area to which the personal handy phone terminal moves and in which the terminal can be called. Furthermore, the position acquisition portion 4 reads the positional information corresponding to the detailed positional area for displaying on the personal handy telephone terminal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position acquisition system for a mobile telephone terminal, and more particularly, to a system which can be suitably used for a position acquisition system for a simplified portable telephone terminal.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. Hei 8-265826 discloses an example of a conventional position acquisition system for mobile telephone terminals.

[0003] The PHS system disclosed in Japanese Patent Application Laid-Open No. 8-265826 is composed of a plurality of radio base stations and a simplified portable terminal, and the radio base station uses a CS-I for identifying the base station.
The base station is recognized by sending the D number to the simplified portable terminal.

[0004] As shown in FIG.
A radio unit 51 that receives the S-ID number, a memory unit 52 that stores position information associated with the CS-ID number, a display unit 53 that displays the position information, an operation control unit 54 that performs overall control, A data processing unit 55 for reading out the position information corresponding to the CS-ID number received by the wireless unit 51 from the memory unit 52 according to an instruction from the operation control unit 54 and outputting the read information to the display unit 53; Part 5
And CS-ID from the radio base station in the radio unit 51.
When the number is received, position information centering on the CS-ID number is retrieved from the memory unit 52, and the position information is displayed on the display unit 53 according to an operation instruction.

[0005] Another example of this type of the prior art is disclosed in Japanese Unexamined Patent Publication No.
No. 122895. JP-A-10-12289
The position search system disclosed in Japanese Patent Publication No. 5 is aimed at searching for wandering persons, distressed persons, and the like, and as shown in FIG. 6, the child device 61 and the parent device 62, and the child device 61 and the parent device 62. PHS relay facility 63 of a communication line carrier that relays
And an S satellite 64.

The slave unit 61 measures the position of the slave unit 61 based on radio waves from the GPS satellites 64 and provides positioning information.
It has a PS positioning device 65 and a PHS response device 66 that receives wireless communication from the parent device 62 and transmits positioning information to the parent device 62.

[0007] The base unit 62 measures the position of the base unit 62 based on radio waves from the GPS satellites 64 to provide positioning information, and a GPS positioning device 68 that calls the mobile unit 61 by wireless communication to call the mobile unit 61. PHS receiving positioning information from slave unit 61
It has a transmitting / receiving device 69 and a map image display 70 for displaying the relative position of the child device 61 with respect to the parent device 62 from the positioning information of the child device 61 and the positioning information of the parent device 62.

Next, the operation will be described with reference to FIG. When a wireless call is made from the PHS transmission / reception device 69 of the master unit 62 to the slave unit 61 carried by the search target, the slave unit 61
Positioning is performed by the positioning device 65, and the PHS
1 is returned to the base unit 62. The master unit 62 obtains the positioning information of the slave unit 61 received from the slave unit 61 and the self-positioning information measured by the GPS positioning device 68 of the master unit 62, and thereby obtains a relative distance from the master unit 62 to the slave unit 61. Position error 1m
It is displayed on the map image display 70 with high accuracy of less than.

[0009]

The above-mentioned prior art has the following problems. The PHS system disclosed in JP-A-8-265826 stores position information in association with a CS-ID number, which is an identification code of a wireless base station. Therefore, only the position information for each CS-ID number can be extracted, and the range indicating the current position of the simplified mobile phone terminal extends over the entire range that can be controlled by the wireless base station, and the detailed position is specified. There was a problem that it was not possible.

In the position search system disclosed in Japanese Patent Application Laid-Open No. 10-122895, a GPS positioning device 65 and a PHS response device 6
6 and a GPS positioning device 68 and a PH
It has an S transmitting / receiving device 69. Furthermore, the PH of the slave unit 61
Since the information of the wireless communication received by the S-response device 66 must be transmitted to the GPS positioning device 65, there is a problem that the system configuration becomes expensive and complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a mobile telephone terminal position acquisition system capable of specifying the current position of a mobile telephone terminal more precisely. It is.

Another object of the present invention is to reduce redundant or redundant processing and simplify the configuration of a position acquisition system.
And to provide a reduced position acquisition system for mobile telephone terminals.

[0013]

According to the first aspect of the present invention,
A location acquisition system for a mobile telephone terminal, wherein a detailed location area in which a paging area of a radio base station is divided into a plurality of adjacent radio base stations is defined in advance, and when a location of the mobile telephone terminal is registered, a location registration of a movement destination is performed. A detailed location area of the mobile telephone terminal is specified from the information and the location registration information before the movement, and the location information is displayed.

According to a second aspect of the present invention, there is provided a location acquisition system for a mobile telephone terminal, comprising: a radio section for transmitting / receiving a radio signal and analyzing / distributing the radio signal; and receiving a location registration control signal from the radio section. A location registration control unit for performing location registration control, a first storage unit for storing location registration information for each of the mobile telephone terminals, and a plurality of wireless base station units adjacent to a call area of each wireless base station. A second storage unit that stores the detailed location area information divided for each radio base station, a third storage unit that stores the location information for each of the detailed location areas, and a request for location registration by the mobile telephone terminal. At that time,
The detailed storage area information corresponding to the call area information before movement of the mobile telephone terminal read from the first storage unit and the identification information of the destination wireless base station transmitted together with the position registration request are stored in the second storage unit. And a position acquisition unit that reads the position information of the detailed position area information from the third storage unit and sends the read position information to the mobile telephone terminal.

[0015]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a position acquisition system for a mobile telephone terminal according to an embodiment of the present invention. The wireless unit 1 performs transmission / reception of a wireless signal to / from a simplified mobile phone terminal, which is a mobile phone terminal, and analyzes and distributes data. The location registration control unit 2 receives a control signal related to location registration from the wireless unit 1 and performs control related to location registration. The memory unit 3 stores various types of association information relating to location registration of a wireless base station and a simplified mobile phone terminal. The position acquisition unit 4 is started by the position registration control unit 2 at the time of position registration, and performs control for acquiring position information of the simplified portable telephone terminal that has performed position registration.

FIG. 2 is an explanatory diagram showing the configuration of a mobile terminal switching system to which the position acquisition system of the present invention is applied.
The mobile terminal switching system 5 accommodates a plurality of radio base stations and exchanges calls between mobile telephone terminals. Position acquisition system 6
Are located in the radio control unit of the mobile terminal switching system 5, as shown in FIG.

FIG. 3 is an explanatory diagram showing a paging area configuration of the radio base station in the present embodiment. In the present embodiment, as shown in FIG. 3, the calling area differs for each wireless base station in the self-managed PHS system, and the wireless base station A7 defines the calling area A11 as an area in which the location can be registered. Similarly, the radio base station B8 defines the calling area B12 as the area in which the location can be registered, the radio base station C9 defines the calling area C13 as the area in which the location can be registered, and the radio base station D10 also registers the calling area D14. Define as possible area.

The calling area A11, which is located within the location registration of the radio base station A7, is trying to eliminate an area where radio waves cannot reach by overlapping a border line with an adjacent radio base station. For example, the radio base station A7 is the radio base station B
8, adjacent to the radio base station C9 and the radio base station D10, and a part of the paging area A11 overlaps with the paging area of the adjacent radio base stations.

The paging area A11 is a detailed location area AB15 including an area overlapping the paging area B12 of the radio base station B8, and a detailed location area AC including an area overlapping the paging area C13 of the radio base station C9.
16 and three adjacent radio base stations in the detailed location area AD17 including an area overlapping with the calling area D14 of the radio base station D10.

The simplified portable telephone terminal 18 is a wireless base station A
7, radio base station B8, radio base station C9, radio base station D1
0, call area A11, call area B12, call area C13, call area D14
The mobile terminal has a function of performing position registration to a wireless base station that receives the strongest radio wave from the current position when moving out of the calling area of the wireless base station performing position registration.

FIG. 4 is an explanatory diagram showing details of various types of association information stored in the memory unit 3 of FIG. Memory part 3
The association information 31 to 3 according to the embodiment of FIG.
5 are defined. The association information 31 is information indicating a wireless base station whose location is registered by each simplified mobile phone terminal, and is information for identifying a wireless base station whose location is registered for each simplified mobile phone terminal (for example, CS- (ID number). The association information 32 stores a paging area corresponding to each wireless base station. The association information 33 stores a detailed location area for each wireless base station in association with each other. The association information 34 stores a wireless base station before movement and a detailed location area after movement for each simplified mobile phone terminal. The association information 35 stores position information corresponding to each detailed position area.

Next, the operation of the embodiment of the present invention will be described with reference to FIG.
This will be described in detail with reference to FIG. In FIG. 3, the simplified mobile phone terminal 18 is located within the calling area D14 of the radio base station D10. At this time, the association information 31 includes information (for example, a CS-ID number) for identifying the wireless base station D14 as the wireless base station for which the location of the simplified mobile phone terminal 18 is registered. Is stored in association with the information to be processed.

When the portable cellular phone terminal 18 moves from the calling area D14 to the calling area A11, it sends a position registration control signal to the mobile terminal switching system to register a position in the destination calling area A11. Register. The mobile terminal switching system receives the position registration control signal sent via the radio base station and passes it to the position acquisition system 6 in the radio control unit. Position acquisition system 6
Analyzes the location registration control signal in the radio unit 1, and then sends the location registration control signal to the location registration control unit 2. The location registration control unit 2 that has received the location registration control signal identifies the information for identifying the radio base station A7, the calling area A11 of the radio base station A7, and the simplified mobile phone terminal 18 as information at the time of location registration. Information (for example, a PS-ID number) is obtained.

Next, the position registration control unit 2 determines the position of the portable cellular phone terminal 18 in the calling area A11 of the radio base station A7 by using the position acquisition unit 4
Start After starting, the position acquisition unit 4 sets the association information 3
1, it is recognized that the adjacent wireless base station where the simplified mobile phone terminal 18 was located before moving is the wireless base station D10. Then, the position acquisition unit 4 stores the information for identifying the recognized wireless base station D10 in the association information 34 as the adjacent wireless base station where the simplified cellular phone terminal 18 was located before the movement.

The position acquisition unit 4 associates information for identifying the wireless base station D10, which is an adjacent wireless base station, whose position has been registered before the movement, with information for identifying the wireless base station A7 that is currently located. With reference to the information 33, the detailed position area AD17 is read, and the detailed position of the simplified cellular phone terminal 18 is specified. The information for identifying the wireless base station A7 is stored in the association information 31 as the wireless base station whose position has been registered after the portable cellular phone terminal 18 has moved.

The position acquisition unit 4 refers to the association information 35, reads out “near XX town × 3 chome” as the position information corresponding to the read detailed position area AD26, and reads the detailed position of the simplified portable telephone terminal 18. Use as display information.

As described above, in the present embodiment, the wireless base station D10
From the calling area D14 of the wireless base station A7 which is a different calling area, it is recognized that the mobile terminal has moved to a position close to the adjacent wireless base station D14 before moving instead of the positional information of the wireless base station. And converts it to the corresponding detailed location information, so that the simplified mobile phone 1
8 can be specified more precisely.

Further, since the simplified portable telephone terminal 18 does not need to have a complicated configuration due to the effects of GPS or the like, it is possible to simplify the mobile terminal exchange system and configure a reduced position acquisition system.

[0029]

The first effect is that the current position of the mobile telephone terminal can be specified more finely. The reason is that, when the mobile telephone terminal moves from the call area of the registered wireless base station to the area of the wireless base station in a different call area, the mobile phone terminal does not use the position information of the wireless base station unit but the information before the adjacent movement. This is because it recognizes that it has moved to a position close to the wireless base station, and converts the information into the position information of the subdivided detailed position area.

The second effect is that, in addition to the first effect, the mobile terminal switching system can be simplified and reduced. The reason is that a large-scale system such as a GPS is not required to specify the detailed position of the mobile telephone terminal.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a position acquisition system according to the present invention.

FIG. 2 is an explanatory diagram showing a configuration of a mobile terminal switching system to which the position acquisition system of the present invention is applied.

FIG. 3 is an explanatory diagram showing a paging area configuration of a radio base station in the embodiment of the present invention.

FIG. 4 is an explanatory diagram showing details of various types of association information stored in a memory unit 3;

FIG. 5 is a block diagram showing an example of the related art.

FIG. 6 is a block diagram showing another example of the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Radio | wireless part 2 Location registration control part 3 Memory part 4 Location acquisition part 5 Mobile terminal exchange system 6 Location acquisition system 7 Base station A 8 Base station B 9 Base station C 10 Base station D 11 Call area A 12 Call area B 13 Call Area C 14 Calling area D 15 Detailed location area AB 16 Detailed location area AC 17 Detailed location area AD 18 Simple mobile phone terminal 31-35 Association information

Claims (2)

[Claims] In a location acquisition system for displaying location information on a mobile telephone terminal, a detailed location area in which a paging area of a radio base station is divided into a plurality of adjacent radio base station units is defined in advance, and the location of the mobile telephone terminal is defined. A location acquisition system for a mobile telephone terminal, wherein at the time of registration, a detailed location area of the mobile telephone terminal is specified based on location registration information of a destination and location registration information before the movement, and the location information is displayed. 2. A radio unit for transmitting / receiving a radio signal and analyzing / distributing the radio signal, a location registration control unit for receiving a location registration control signal from the radio unit and controlling location registration, and the mobile phone. First to store location registration information for each terminal
A second storage unit for storing, for each radio base station, detailed location area information obtained by dividing the paging area of each radio base station into a plurality of adjacent radio base station units; A third storage unit storing the position information of
When the mobile phone terminal makes a location registration request, the mobile phone terminal uses the pre-move call area information read from the first storage unit and the destination wireless base station identification information transmitted together with the location registration request. And a position acquisition unit that reads out the detailed location area information to be read from the second storage unit, reads out the location information of the detailed location area information from the third storage unit, and sends it to the mobile telephone terminal. Mobile phone terminal location acquisition system.