JP2000232673A - System for registering position of mobile object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce position registration signal processing loads when a plurality of position registration signals are simultaneously generated by storing individual vase station information, scheduled time and position registration area shape changing information, extracting an object base station whose position registration are shape is to be changed according to the position registration area shape changing information when the scheduled time arrives and then information the object base station of the shape-changed position registration area. SOLUTION: Time T1 for changing a position registration area and an object base station for changing its position registration area are determined and an area boundary A before changing the position registration area and an area boundary B after changing the area which is smaller than the boundary A are set up and stored in a change pattern storing part 214. When a time detector 212 detects the time T1, a position registration area changing processing part 211 extracts a change from the area boundary A to the area boundary B from the storing part 214, extracts the target base station from a position registration area information storing part 213 and changes the area boundary of the extracted object base station form the area boundary A to the area boundary B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile location registration system in a mobile communication system, and more particularly, to a location registration that occurs when mobile terminals move simultaneously by dynamically controlling a location registration area. The present invention relates to a mobile object position registration method for reducing a signal processing load.

[0002]

2. Description of the Related Art In a mobile communication system, it is necessary to register the location of a mobile terminal in order to be able to make and receive calls to and from the mobile terminal. However, in the conventional mobile location registration system, when a large number of mobile terminals move across the boundary of the location registration area at the same time, a signal for location registration is added to the mobile network all at once. The load on the body network and each node becomes enormous. For this reason, there is a problem that a node or a network may cause congestion. Japanese Patent Laid-Open Publication No.
205457. Hereinafter, this technique will be described with reference to the drawings.

First, FIG. 7 shows the configuration. In this figure, 701 is a mobile management database for managing mobile terminals, 702 is a relay mobile management database for managing relay mobiles, and these are connected to a control network 703 for transmitting control signals. I have. A communication network 704 transmits voice and data.
Reference numeral 3 denotes a mobile network. A relay mobile unit 709 accommodates a large number of mobile terminals. The relay mobile unit 709 communicates with the mobile terminal 708, communicates with the mobile network, and monitors and manages the mobile terminal 708. Device 70
7 is provided. 705 is a base station antenna, and 706 is a mobile terminal antenna. And the relay moving body 709
Has relay means for relaying a signal between the mobile terminal 708 and the base station, and the mobile management database 701 and the relay mobile management database 702 transfer position information of the mobile having the relay means to a database. A recording unit for recording is provided.

Next, the operation will be described. Mobile terminal 708
Is moved under the control of the relay mobile unit 709, the relay mobile unit 709 transmits a location registration message including the mobile unit number of the mobile terminal 708 and its own relay mobile unit number to the control station 70.
3 is sent. Upon receiving the location registration message, the control network 703 switches the mobile terminal 708 to the relay mobile 709.
The storage in the mobile object management database 701 is recorded, and the mobile object management database 701 is updated. At the same time, the relay mobile unit 709 is
8 is stored in the relay moving object management database 70.
2 and update the relay mobile object management database 702.

On the other hand, if the location registration area needs to be changed due to the movement of the relay mobile unit 709,
Sends a location registration request message including the relay mobile unit number to the control network 703. Upon receiving the message, the control network 703 updates the location registration area of the relay mobile object registered in the relay mobile object management database 702 to the location registration area of the destination.

[0006] By such an operation, in a conventional mobile communication system, a position registration signal is generated all at once by moving a relay mobile body accommodating a large number of mobile terminals. Need only update the location registration information of the relay mobile unit under the control of the mobile terminal, and can reduce the load of the location registration signal added to the mobile network.

[0007]

As described above, in the conventional mobile location registration system, when a large number of mobile terminals move simultaneously beyond the boundary of the location registration area, the location registration to the mobile network is performed. Therefore, the load on the mobile network and each node becomes enormous, and there is a problem that the node or the network may be congested.

As a technique for solving this problem, there is Japanese Patent Application Laid-Open No. Hei 6-205457. However, in this technique, it is necessary to newly provide a facility as a relay moving body, and there is a problem that a large cost is required.

There is another problem that congestion of a node or a network is only reduced in a situation where a position registration signal is generated all at once by moving a vehicle accommodating a large number of mobile terminals.

[0010] The present invention provides a method for processing a position registration signal in a situation where a large number of mobile terminals located in the suburbs such as the suburbs of the Tokyo metropolitan area move to the center at a certain time in the morning. It is an object of the present invention to provide a mobile location registration system that reduces the traffic.

In addition, the above-mentioned moving object position registration system is
It is an object of the present invention to realize an existing mobile communication system at low cost by adding a function to an exchange without providing new equipment.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a mobile location registration system according to the present invention receives a signal from a mobile terminal at a base station accommodated in an exchange and receives a signal from the mobile terminal. In a moving object position registration method for storing position information, the following structure is provided.

(A) a location registration area information storage section for storing location registration areas of a plurality of base stations; (B) a change pattern storage section for storing a location registration area change pattern;
(C) Location registration for performing a location registration area change by reading a location registration area change pattern from the change pattern storage unit and changing the location registration areas of a plurality of base stations stored in the location registration area information storage unit. Area change processing unit.

The switching center further includes a time detector for detecting the current time and notifying the location registration area change processing unit, and the change pattern storage unit stores the time of occurrence of the location registration area change pattern and the location registration area boundary. The change content is stored, and the position registration area change processing unit reads out and executes the position registration area change pattern in which the time notified from the time detector coincides with the occurrence time from the change pattern storage unit.

The location registration area information storage unit stores the current location registration area for each base station and the location where the base station is installed, and the location registration area change processing unit performs a location registration area change. Then, based on the change pattern of the location registration area read from the change pattern storage unit and the location of the base station stored in the location registration area information storage unit, identify whether the base station is the target of the location registration area change, When it is determined that there is, the location registration area is changed by rewriting the information of the current location registration area.

Further, (A) a location registration area information storage unit for storing location registration areas of a plurality of base stations, and (B) a change pattern for storing a location registration area change pattern, on a network connecting the exchanges. With storage unit,
(C) The location registration area is changed by reading the change pattern of the location registration area from the change pattern storage unit and changing the location registration areas of a plurality of base stations stored in the location registration area information storage unit. And a location registration area change processing unit.

The exchange further includes a time detector for detecting the current time and notifying the position registration area change processing unit, and the change pattern storage unit stores the time of occurrence of the position registration area change pattern and the change of the position registration area boundary. Memorize the contents,
The location registration area change processing unit reads out and executes a location registration area change pattern in which the time notified from the time detector coincides with the occurrence time from the change pattern storage unit.

The location registration area information storage unit stores the current location registration area and the location where the base station is installed for each base station, and the location registration area change processing unit performs a location registration area change. Then, based on the change pattern of the location registration area read from the change pattern storage unit and the location of the base station stored in the location registration area information storage unit, identify whether the base station is the target of the location registration area change, When it is determined that there is, the location registration area is changed by rewriting the information of the current location registration area.

The location registration area change pattern is characterized in that the time of occurrence of the location registration area change and the details of the change of the location registration area boundary are set according to the season or region.

The change pattern storage unit further stores a restoration time for returning the changed location registration area to the original location registration area by performing the location registration area change,
The position registration area change processing unit reads a position registration area change pattern in which the time notified from the time detector coincides with the restoration time from the change pattern storage unit and restores the position registration area.

[0021]

FIG. 1 is a diagram showing the setting of a location registration area in an area provided by a mobile communication system to which a mobile location registration method according to the present invention is applied.

In FIG. 1, a location registration area 101 surrounds a location registration area 102 and has a boundary 103.
, It is in contact with the location registration area 102. If you take the suburbs of the Tokyo metropolitan area as an example, Tokyo will be area 102 and Chiba /
It is assumed that a region around Tokyo, such as Kanagawa, is set as the area 101. This area boundary 103
Is statistically determined so that the processing load of each base station and the switching center with respect to processing of a call signal from a mobile terminal, processing of a call signal to a mobile terminal that has received an incoming call, and the like are equalized. is there.

Referring to FIG. 2, the configuration of the mobile location registration system according to one embodiment of the present invention will be described.

Referring to FIG. 2, in one embodiment of the mobile location registration system of the present invention, an exchange 21 operating under program control, a number of base stations 24 for transmitting location registration area information to mobile terminals, and Exchange 21 and multiple base stations 24
And communication means 23 for connecting the two. The switching center 21 further includes a location registration area change processing unit 211, a time detector 212 for notifying the current time, a location registration area information storage unit 213 for storing which location registration area each base station belongs to, and a location registration area. A change pattern storage unit 214 for storing a change pattern for making a change is provided.

Referring to FIG. 3, the mobile location registration system of the present invention changes the boundary of the location registration area, thereby reducing the load on processing of location registration signals issued from mobile terminals that move at the same time. The principle will be described.

First, in the state shown in FIG.
Is a mobile terminal located near the area boundary 103 and located in the area 102. The mobile terminal 106 is a mobile terminal located near the area boundary 103 and located in the area 101. Here, when a large number of mobile terminals 106 simultaneously move toward the area 102 beyond the area boundary 103, the mobile terminal location registration method in the conventional mobile communication system is in the state of FIG. The mobile terminal 106 generates a location registration signal indicating that the service area has been changed. In the present invention,
At a predetermined time when a large number of mobile terminals 106 move toward the area 102, as shown in FIG.
To 104. By changing the area boundary, many mobile terminals 106 remain in the area 101 and no location registration signal is generated.
The mobile terminal 105 belonging to the area 02 and located near the area boundary 103 generates a position registration signal indicating that the serving area has been changed from the area 102 to the area 101. By such an operation, when a large number of mobile terminals move toward the center at the same time, the number of position registration signals generated is reduced, thereby reducing the processing load on the base station and the switching center for the position registration process. Things.

As shown in FIG. 3, the mobile object position registration system of the present invention has a position registration area 101 and a position registration area 102.
The operation of changing the boundary 103 into the boundary 104 will be described with reference to the flowchart of FIG. 4 and the configuration of the embodiment of FIG.

First, the operator operating the mobile communication system determines in advance the time T1 at which the location registration area is to be changed and the base station to which the location registration area is to be changed. The area boundary 104 after the position registration area change is set, and the determined information is stored in the change pattern storage unit as a position registration area change pattern (step 401). FIG. 5 shows the position registration area change pattern set in the change pattern storage unit.
An example is shown in FIG. In FIG. 5, it is stored that pattern A is generated at time T1 as the location registration area change pattern, and the boundary of the location registration area is changed from the boundary 103 to 104. Similarly, pattern B is set to change the boundary of the location registration area from the boundary 108 to 109 (not shown) at time T2.

When the time detector 212 detects the time T1 determined to change the position registration area of the pattern A (step 402, Yes), the time T1 is notified to the position registration area change processing section (step 402). Step 40
3).

The location registration area change processing section reads a location registration area change pattern stored in advance from the change pattern storage section, and at the time T1, the pattern A
Of the location registration area 101
And the boundary of the location registration area 102 from the boundary 103 to the boundary 1
04 is extracted (step 404).

When it is determined that the change pattern is a change from the boundary 103 to the boundary 104, the location registration area change processing unit refers to the location registration area information storage unit and determines a base station to be subject to the location registration area change. Extract (Step 40
5). Here, FIG. 6 shows an embodiment of a location registration area information storage unit for storing area information of a base station. The location registration area information storage unit stores information on the location of the base station and the current location registration area for the base station accommodated by the exchange. FIG. 6 shows the location registration area change processing unit.
With reference to the location information of the base station of
The base station is located in the area surrounded by 04 and belongs to the location registration area 102 before time T1, and the location registration area 1 is used as location registration information for a mobile terminal in its own cell.
The base station 2 that has transmitted the information 02 is extracted.

The location registration area change processing unit changes the current location registration area information in the location registration area information storage unit from the area 102 to the area 101 for the extracted base station (step 406). By changing the location registration area information transmitted from the extracted base station to the mobile terminal from the location registration area 102 to the location registration area 101, the boundary between the location registration area 101 and the location registration area 102 becomes the boundary 103. To the boundary 104.

By such processing, in FIG. 1, the N mobile terminals existing in the location registration area 101 at the time T1 move beyond the boundary 103 to the boundary 104 and the boundary 103.
In a case where M mobile terminals are located in the area surrounded by the boundary 104 and the boundary 103 immediately before the time T1, the position registration area 101 in the related art is used. , N location registration signals are transmitted from the N mobile terminals that have moved to the location registration area 102. In the present invention, at time T1, the location registration area 101
Is extended from the boundary 103 to the boundary 104, the N mobile terminals remain in the location registration area 101 even if they move, so that no location registration signal is transmitted. On the other hand, before the time T1, M mobile terminals in the area surrounded by the boundary 104 and the boundary 103 transmit a location registration signal notifying that the location registration area 102 has been changed to the location registration area 101. Become. Therefore, the number of location registration signals can be reduced from N to M. Also,
Regarding the location registration area change pattern, the mobile communication service provider always knows the tendency of the mobile terminal to perform what kind of time and what kind of movement. Time T to change
1 and T2 are set in advance. Taking the Tokyo metropolitan area as an example, the time at which many mobile terminals move toward the center in the morning is T1, and the time at which many mobile terminals move outward from the center in the evening is T2. It is determined. These times are determined empirically in accordance with the region or season to which the present invention is applied. Also, the shapes of the area boundary 103 before the change of the location registration area and the area boundary 104 after the change of the position registration area are determined according to the region or season to which the present invention is applied. Also,
In the present embodiment, the operation of changing the location registration area at time T1 has been described. However, the configuration may be such that the location registration area is restored at a predetermined time. This is because when many mobile terminals move toward the center during a rush hour in the morning, the location registration area is changed, and when many mobile terminals move outward again in the evening, the location registration area is changed. The registration area is restored. This is because, regarding the processing of incoming calls to the mobile terminal and calling from the mobile terminal, the load on the call processing in the base station and the switching center is equalized in the original location registration area setting. Also,
The location registration area information storage unit and the change pattern storage unit
You may comprise so that it may be provided on the network which connects exchanges.

[0034]

As described above, according to the present invention, when a large number of mobile terminals move beyond the location registration area at the same time, the boundary of the location registration area is dynamically controlled, and the number of location registration signals generated Can reduce the load on the system related to the location registration area change processing. The position registration system for a mobile object according to the present invention can be used in a situation where a large number of mobile terminals located in the suburbs such as the suburbs of the Tokyo metropolitan area move to the center at a certain time in the morning, This has the effect of reducing the load associated with the processing. In addition, the above-described location registration system for a mobile body can be realized at low cost simply by adding a function to an exchange without providing new equipment.

[Brief description of the drawings]

FIG. 1 is a diagram showing setting of a location registration area.

FIG. 2 is a diagram showing a configuration of an embodiment of a location registration method of the present invention.

FIG. 3 is a diagram for explaining the operation of the location registration method of the present invention.

FIG. 4 is a flowchart showing the operation of the location registration method of the present invention.

FIG. 5 is a diagram illustrating a configuration of an embodiment of a change pattern storage unit.

FIG. 6 is a diagram showing a configuration of an embodiment of a location registration area information storage unit.

FIG. 7 is a diagram showing a configuration of a conventional location registration system.

[Explanation of symbols]

  101, 102 location registration area 103, 104 location registration area boundary 21 exchange station 211 location registration area change processing section 212 time detector 213 location registration area information storage section 214 change pattern storage section 23 communication means 24 base station 105, 106 mobile Terminal 701 Mobile management database 702 Relay mobile management database 703 Control network 704 Communication network 705 Base station antenna 706 Mobile terminal antenna 707 Relay mobile monitoring device 708 Mobile terminal 709 Relay mobile

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] February 21, 2000 (200.2.2
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a mobile location registration system according to the present invention comprises a plurality of base stations.
Mobile terminal has a plurality of location registration areas formed by
Changes in location registration area information reported from the base station
By receiving the location registration signal that is transmitted when detected
To store the location registration area where the mobile terminal is located.
In a mobile communication system , each of the location registration areas
Base station information to be formed and a predetermined time and location registration area
A) storing the shape change information of the
Based on the shape change information in the location registration area,
Extract the base station to be an elephant and change the shape of the base station
Location registration area to instruct subsequent location registration area information
A) It is characterized by having a shape changing means .

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

Also, a mobile object position registration system according to the present invention
Is characterized by having the following configuration.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction contents]

(A) Base for Forming Individual Location Registration Areas
Location registration area information storage means for storing local station information,
(B) Predetermined time and shape change information of location registration area
Change pattern storage means for storing information, (C) the change
The time stored in the pattern storage means and the position registration area
According to the changed shape, the position registration area information is stored.
Of the base stations stored in the
And change the shape of the location registration area
Location registration area change processing means.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

[0015] The location registration area information storage means includes:
The current location registration area and the base station are installed for each base station.
I remember where you are.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction contents]

And the location registration area changing means.
Is the position registration read from the change pattern storage means.
Recording area change shape and location registration area information storage
The base station is registered from the location of the base station stored in the column.
Recording area change target, and identify
Then, it is stored in the location registration area information storage means.
By rewriting the information in the current location registration area
Change the shape of the registration area.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction contents]

More particularly, the movement according to the invention
The body location registration method is a location registration formed by multiple base stations.
The mobile terminal has a plurality of areas, and the mobile terminal is notified from the base station.
Location to send when a change in location registration area information is detected
Receiving the location registration signal, the mobile terminal
Mobile communication systems that store location registration areas
And the following configuration.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction contents]

(A) Base for Forming Individual Location Registration Areas
Location registration area information storage means for storing local station information,
(B) Location registration obtained from the movement tendency of a plurality of mobile terminals
Changing the time and shape when recording signals occur most often
Minimizes the generation of the location registration signal at the time
Change to save the shape of the location registration area to be suppressed in advance
Pattern storage means, (C) said change pattern storage means
Time and the shape of the location registration area
The location registration area information storage means
Of base stations whose shape is to be changed from existing base stations
And the location registration area information after the shape change for the base station.
Location registration area change processing means for instructing notification of information.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction contents]

In this case, the location registration is performed in the same manner as described above.
The area information storage means stores the current location registration information for each base station.
And the location where the base station is located.
You.

[Procedure amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0020

[Correction method] Change

[Correction contents]

And the location registration area changing means.
Is the position registration read from the change pattern storage means.
Recording area change shape and location registration area information storage
The base station is registered from the location of the base station stored in the column.
Recording area change target, and identify
Then, it is stored in the location registration area information storage means.
Rewrite the current location registration area information
Report the location registration area information after the shape change to the base station
It is characterized by instructing knowledge .

[Procedure amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Change

[Correction contents]

When it is determined that the change pattern is a change from the boundary 103 to the boundary 104, the location registration area change processing unit refers to the location registration area information storage unit and determines a base station to be subject to the location registration area change. Extract (Step 40
5). Here, FIG. 6 shows an embodiment of a location registration area information storage unit for storing area information of a base station. The location registration area information storage unit stores, for all base stations accommodated by the exchange, information on the location of the base station and the current location registration area. FIG. 6 shows the location registration area change processing unit.
With reference to the location information of the base station of
The base station is located in the area surrounded by 04 and belongs to the location registration area 102 before time T1, and the location registration area 1 is used as location registration information for a mobile terminal in its own cell.
The base station 2 that has transmitted the information 02 is extracted.

Claims (8)

[Claims] 1. A mobile location registration system in which a base station accommodated in an exchange receives a signal from the mobile terminal and stores location information of the mobile terminal, wherein the exchange comprises the plurality of base stations. A position registration area information storage unit that stores a position registration area of the position registration area; a change pattern storage unit that stores a change pattern of the position registration area; and a position registration area information that is read from the change pattern storage unit to read the position registration area change pattern. A location registration area change processing unit that performs location registration area change by changing location registration areas of the plurality of base stations stored in a storage unit. 2. The switching center further includes a time detector for detecting a current time and notifying the current time to the location registration area change processing unit. The change pattern storage unit includes a location registration area change pattern occurrence time and a location registration area. The location registration area change processing unit stores the change content of the boundary, and reads out and executes the location registration area change pattern in which the occurrence time matches the time notified from the time detector from the change pattern storage unit. 2. The moving object position registration method according to claim 1, wherein 3. The location registration area information storage unit stores a current location registration area and a location where the base station is installed for each base station, and the location registration area change processing unit performs a location registration area change. When performing, based on the change pattern of the location registration area read from the change pattern storage unit and the location of the base station stored in the location registration area information storage unit, whether the base station is the target of the location registration area change 3. The moving object position registration method according to claim 1, wherein the position registration area is changed by rewriting information of the current position registration area when the object is identified as a target. 4. A mobile location registration method in which a base station accommodated in an exchange receives a signal from the mobile terminal and stores location information of the mobile terminal, wherein a base station accommodated in the exchange has a A location registration area information storage unit that stores location registration areas of the plurality of base stations; and a change pattern storage unit that stores a change pattern of the location registration area, wherein the exchange registers location from the change pattern storage unit. A location registration area change processing unit that performs a location registration area change by reading an area change pattern and changing a location registration area of the plurality of base stations stored in the location registration area information storage unit. Characteristic mobile object location registration method. 5. The switching center further includes a time detector for detecting a current time and notifying the current time to the location registration area change processing unit, wherein the change pattern storage unit includes a location registration area change pattern occurrence time and a location registration area. The location registration area change processing unit stores the change content of the boundary, and reads out and executes the location registration area change pattern in which the occurrence time matches the time notified from the time detector from the change pattern storage unit. The moving object position registration method according to claim 4, wherein 6. The location registration area information storage unit stores a current location registration area and a location where the base station is installed for each of the base stations, and the location registration area change processing unit performs a location registration area change. When performing, based on the change pattern of the location registration area read from the change pattern storage unit and the location of the base station stored in the location registration area information storage unit, whether the base station is the target of the location registration area change 6. The moving object position registration method according to claim 4, wherein the position registration area is changed by rewriting information of the current position registration area when the object is identified as a target. 7. The change pattern of the location registration area, wherein an occurrence time of the location registration area change and a content of change of the location registration area boundary are set according to a season or a region. 5. The mobile object position registration method according to 5 or 6. 8. The change pattern storage unit further stores a restoration time at which the position registration area changed by performing the position registration area change is returned to the original position registration area. 3. The position registration area change pattern in which the time notified from a time detector and the restoration time coincide with each other is read from the change pattern storage unit, and the position registration area is restored.
3. The moving object position registration method according to 3, 5, 6, or 7.