JP2001112048A - Home memory node system and vlr system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a home memory node system and a VLR node system that can stably authenticate a terminal and register its position with high accuracy. SOLUTION: These home memory node system and VLR node system are provided with a storage means that stores terminal position information and authentication information, a database maintenance means that reflects the position information and the authentication information given from an active system to the storage means for a period acting like a standby system, a call history request means that makes a request of already acquired history information denoting the history of calls incident before a call of a concerned terminal to sequentially or in parallel to VLRs under the control when receiving identification information, an authentication key of the concerned terminal to be authenticated whose call, is incident and new history information denoting the call incident in the concerned terminal, and an authentication means that takes correlation between the already acquired history information and the new history information and takes correlation between the authentication information stored in the storage means and the authentication key to authenticate the terminal to be authenticated on the basis of the results when the VLRs under the control provides the already acquired history information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system to which a VLR overhang system is applied, in which data used for realizing authentication of individual subscribers and guaranteeing mobility is stored and updated appropriately. The present invention relates to a home memory node device and a VLR device constituting a database to be stored.

[0002]

2. Description of the Related Art In recent years, the market for mobile communication systems has been liberalized, and is rapidly spreading under the competition between a plurality of carriers and the technical development of equipment manufacturers. In a wireless zone where a large number of terminals can be located in a concentrated manner, such as a wireless zone formed in the center of a city, an enormous number of calls are concentrated in the busiest time.

[0003] Therefore, in many mobile communication systems, the authentication information stored in the home memory station is compared with the "HLR fixed system" in which the authentication information is appropriately referred to in the course of the call processing.
The LR overhang method is often adopted. In addition, such a “VLR extension method” is as follows: The “existing subscriber location register” (hereinafter, referred to as “registered location register”) is provided to all exchanges that perform call processing for a call generated in any mobile station
Simply referred to as “VLR”. ), And the authentication information updated according to the completion of the location registration and stored in the home memory station is distributed to these VLRs. Is a method in which call processing and channel control are efficiently performed by directly referring to VLRs provided individually.

FIG. 18 is a diagram showing a configuration example of a mobile communication system to which the VLR overhang system is applied. In the figure,
The home memory stations 110-1 and 110-2 are connected to both ends of the communication link 111 and are connected to a common channel signal network 112, respectively. The switching system 113-1 is connected to the common channel signal network 112.
To 113-N, and VLRs 114-1 to 114-N individually paired with these exchanges 113-1 to 113-N. The exchanges 113-1 to 113-N each have a communication link 1
, 115-N1 through 115-N1 through 115-N1 through 115-N1 through 115-Nn.
116-Nn respectively, and these radio base stations 1
The mobile station 118 is located in any one of the wireless zones 117-11 to 117-1n,..., 117-N1 to 117-Nn individually formed by 16-1 to 116-n.

In the mobile communication system having such a configuration,
The home memory stations 110-1 and 110-2 operate based on the standby redundancy scheme. Therefore, home memory station 110
-1 is, for example, the home memory station 110-2 via the communication link 111 during a period in which the above-mentioned data including authentication information is accumulated and the system is operating as the active system to be proactively updated.
The content of the latest database or difference data composed of a set of updated records in the content of the database is transmitted at a predetermined period T to the destination (FIG. 19A, FIG.
0 (a)).

On the other hand, during a period in which the home memory station 110-2 is normally operating as a standby system linked to the working system, the home memory station 110-1 transmits from the home memory station 110-1 via the communication link 111 at the cycle T described above. The contents of the database or the difference data given in the database are included in the database of the own station (FIGS. 19B and 20B). Therefore, the difference between the contents of the databases of the home memory stations 110-1 and 110-2 is as follows.
Resolved periodically.

Also, the mobile station 118 located in the radio zone 117-1n (FIG. 21 (a))
When the mobile station 118 moves into the area of the wireless zone 117-21 adjacent to the mobile station 118 (FIG. 21 (b)), the mobile station 118 uses its own identification information and the "call history count" described later based on the channel control procedure. Is generated.

Further, the mobile station 118 is connected to the radio base station 11.
The "location registration request" is transmitted to the exchange 113-2 via 6-21 (FIG. 19 (1)). Here, the “call history count” is a count value obtained by counting the number of calls that have occurred in the mobile station 118 after the mobile station 118 has completed location registration. Note that the radio base stations 116-11 to 116-1n,
, Channel control performed by 116-N1 to 116-Nn, and transmission and reception of information performed between individual wireless channels and exchanges 113-1 to 113-N based on the channel control procedure are as follows: Not being a feature of the present invention and being realized under a variety of prior art applications,
The description is omitted.

The exchange 113-2 holds the "call history count" included in the "location registration request" in a predetermined storage area of the main memory in association with the identification information included together with the "call history count". . Further, the exchange 113-2
An "authentication request" including the identification information and the "call history count" is generated, and the VLR is
The "authentication request" is sent to 114-2 (FIG. 19 (2)).

When the VLR 114-2 identifies the "authentication request", the VLR 114-2 determines whether or not the mobile station 118 indicated by the identification information included in the "authentication request" is located in the location registration area under its control. It is determined (FIG. 19 (3), FIG. 22 (1)). Further, if the result of the determination is false, the VLR 114-2 transmits the signal to the home memory station 11 via the common channel signal network 112.
The corresponding “authentication request” is transferred to address 0-1 (FIG. 19).
(4), FIG. 22 (2)).

The home memory station 110-1 associates the "call history count" included in the "authentication request" with the "call history count" and the identification information included in the "authentication request" and associates the "call history count" with the predetermined information in the main memory. In the storage area.

Further, home memory station 110-1 generates a “call history count request” including the identification information included in the “authentication request”, and generates a call history count request via common channel signal network 112.
The "call history count request" is transmitted to the LR 114-1 (FIG. 19 (5), FIG. 20 (1)). When the VLR 114-1 identifies the "call history count request", the VLR 114-1 stores "call history count" (hereinafter referred to as "record") stored in a database described as a record associated with the identification information included in the "call history count request". , "Current count".)
19, and generates a "call history count notification" including identification information in addition to the "current count" (FIG. 19).
(6)).

Further, the VLR 114-1 sends this "call history count notification" to the home memory station 110-1 via the common channel signaling network 112 (FIG. 19 (7), FIG. 22).
(3)). The home memory station 110-1 stores the "call history count" stored in a specific storage area of the main memory corresponding to the identification information included in the "call history count notification", and the "call history count" together with the identification information. By taking a difference from the "current count" included in the "count notification" and determining whether or not the difference is less than a predetermined upper limit value, authentication relating to the mobile station indicated by the corresponding identification information is performed. (FIG. 19 (8), FIG. 20 (2)).

It is assumed here that the result of the authentication indicates "the relevant mobile station 118 is a legitimate mobile station" for simplicity. Further, the home memory station 110-1 generates an “authentication request response” including the above-described identification information in accordance with the authentication result, and sends the “authentication request response” to the VLR 114-2 via the common channel signaling network 112. A request response is transmitted (FIG. 19 (9), FIG. 20 (3)).

The VLR 114-2 transmits the "authentication request response"
Is identified, the "authentication request response" is transferred to the exchange 113-2 (FIG. 19 (10), FIG. 22 (4)). Exchange 11
3-2 identifies the authenticity of the result of the authentication included in the “authentication request response”, and when the result is true, includes the corresponding identification information, and the location registration described above is performed. A "location registration continuation request" is generated which means that continuation is to be continued (FIG. 19 (11)).

Further, the exchange 113-2 sends the "location registration continuation request" to the VLR 114-2 via the common channel signaling network 112 (FIG. 19 (12)). VLR114-2
Is connected to the home memory station 110 via the common channel signaling network 112.
-1 is transmitted to the -1 (refer to FIG. 19).
(13), FIG. 22 (5)). When the home memory station 110-1 identifies the "location registration continuation request", the home memory station 110-1 includes the identification information included in the "location registration continuation request" and erases the profile related to the mobile station indicated by the identification information. It generates a “registration deletion request” meaning that it should be.

Further, the home memory station 110-1 sends the "registration erasure request" to the VLR 114-1 via the common channel signaling network 112 (FIG. 19 (14), FIG. 20 (4)). V
The LR 114-1 is connected to the exchange 1 via the common signal line 112.
This “registration deletion request” is transferred to the address 13-1 (FIG. 19).
(15), FIG. 22 (6)). Further, when the exchange 113-1 identifies the "registration deletion request", the exchange 113-1 identifies the "registration deletion request".
Is deleted (FIG. 19 (16)).

In addition, the exchange 113-1 generates the "deletion completion notification" including the above-mentioned identification information, which means that the profile has been deleted in this way, and generates the VLR 114- via the common channel signal network 112. The "deletion completion notification" is sent to the address 1 (FIG. 19 (17)). VLR114-1
When identifying the "erase completion notification", the home memory station 110-1 erases the profile corresponding to the identification information included in the "erase completion notification" (FIG. 22 (7)).
The "deletion completion notification" is transferred to the address (FIG. 19 (18),
FIG. 22 (8)).

When the home memory station 110-1 identifies the "erasure completion notification", the home memory station 110-1 acquires the profile stored in the above-described database as a record corresponding to the identification information included in the "erasure completion notification". (FIG. 19 (1
9)). Further, the home memory station 110-1 transmits a “profile notification” including the identification information and the profile.
And the VLR 114-2 is transmitted through the common channel signal network 112.
The "profile notification" is transmitted to the
0) and FIG. 20 (5)).

When the VLR 114-2 identifies the "profile notification", the VLR 114-2 extracts the identification information and the profile included in the "profile notification" and stores the profile by associating the two with each other as a database. At the same time, the "profile notification" is transferred to the exchange 113-2 via the common channel signaling network 112 (FIGS. 19 (22) and 22 (10)).

Upon identifying the "profile notification", the exchange 113-2 extracts the identification information and the profile contained in the "profile notification", and accumulates them as a database in association with each other (FIG. 19 (23)). )
A "location registration response" is transmitted to the mobile station 118 via the communication link 115-1n and the wireless base station 116-1n (FIG. 19 (24)).

Upon recognizing the "location registration response", the mobile station 118 recognizes the completion of location registration for the wireless zone 117-N1 (migration destination location registration area) formed under the exchange 113-N. FIG. 19 (25)). Further, the mobile station 118 identifies a perch channel among the radio channels allocated to the radio zone 117-N1 based on a channel control procedure, and waits for an incoming call to its own station, and is given by the operator. The state shifts to a standby state in which transmission according to the instruction is possible.

Therefore, the location registration of the mobile station 118 is
This is achieved based on the “VLR extension system” under the dual home memory stations 110-1 and 110-2.

[0024]

By the way, in the above-mentioned conventional example, the home memory station 1 operating as an active system is used.
When the home memory station 110-2 starts operating as the active system in place of the home memory station 110-1 due to some kind of failure in the home memory station 110-2, the database of the home memory station 110-2 is However, not all of the latest information is necessarily reflected.

Further, before the time elapses for the period T or more from the above-mentioned time point, the mobile station 118 is connected to another location registration area (for example, any wireless zone formed under the control of the exchange 113-2). And the home memory station 110-2 determines the VLR to be the destination of the above-mentioned “call history count request” based on the contents of the database at that time ( FIG.
(Five)).

That is, this destination can be set to the VLR 114-1, but the profile of the mobile station 118 has already been deleted according to the above-mentioned "deletion completion notification" (FIG. 19).
(16)). Further, since the home memory station 110-2 cannot acquire a valid “call history count notification” in response to the above-mentioned “call history count request”, the mobile station 118
Cannot be authenticated (FIG. 19 (8), FIG. 20 (2)). Therefore, location registration was not always performed normally in the procedure described above.

[0027] The present invention provides a home memory node device and a VLR device in which authentication and location registration of a terminal located in a subordinate location registration area are performed stably and accurately without a significant change in the basic configuration. The purpose is to provide.

[0028]

FIG. 1 is a block diagram showing a first embodiment of the present invention;
It is a principle block diagram of the invention described in 7.

According to the first aspect of the present invention, the terminals 10-1 to 10-n that can be located in the location registration area formed under the control are based on location information indicating individually located location registration areas and authentication standards. Storage means 11 in which certain authentication information is stored
And identifies whether the own station should operate as an active system or a standby system of a redundant system configured with different home memory node devices 12-1 to 12-p. A database maintenance unit 13 for reflecting the position information and the authentication information given at a predetermined frequency by the different home memory station devices 12-1 to 12-p in the storage unit 11, and a terminal 10-1 to 10-n When new history information indicating the history of the call that occurred prior to the terminal is given based on the call setting procedure of the call, together with the identification information and the authentication key, for the terminal to be authenticated where the call has occurred. To
Call history requesting means 15 for sequentially or in parallel issuing requests for acquired history information indicating the history of calls that occurred prior to the terminal to be authenticated to subordinate VLRs 14-1 to 14-P, and call history requesting means 15 Depending on the request issued, the V
When the acquired history information is given by any of the LRs 14-1 to 14-P, the correlation between the acquired history information and the new history information, and the correlation between the authentication information stored in the storage unit 11 and the authentication key. And an authentication means 16 for authenticating the terminal to be authenticated based on these results.

FIG. 2 is a block diagram showing the principle of the present invention. The invention according to claim 2 is a terminal that can be located in a location registration area formed under the terminal.
storage means 11 in which position information is individually stored for -n
A, and identifies whether the own station should be operated as the active system or the standby system of the redundant system configured with the different home memory node devices 12-1 to 12-p, and during the period of operating as the standby system, The different home memory station devices 12-1 to 12-p
Storage means 1 for position information given at a predetermined frequency by
Database maintenance means 21 for reflecting on 1A;
When the location information of a specific terminal from which the call originated among the terminals 10-1 to 10-n is given based on the call setting procedure of the call, a request for matching with the location information is issued. The present invention is characterized in that it comprises a position information matching requesting means 22 which is issued sequentially or in parallel to the subordinate VLRs 14-1 to 14-P.

According to a third aspect of the present invention, in the home memory node device according to the first or second aspect, the switching center 23 for setting a call and the subordinate VLRs 14-1 to 14-P
Of the VLR associated with the exchange 23, and / or a standby request for suspending the suspension of the call setup for a time adapted to the combination or number of VLRs for which the request is to be issued. It is characterized by having request means 25.

According to a fourth aspect of the present invention, in the home memory node device according to the first aspect, the database maintenance means 13 operates as a standby system in addition to the position information and the authentication information. In addition, the call history requesting unit 15 stores the storage unit 1 together with the standby system identifier by the database maintenance unit 13 among the subordinate VLRs 14-1 to 14-P.
1 is characterized in that a VLR corresponding to the position information reflected in No. 1 is specified, and a request for acquired history information is issued to a VLR other than the VLR.

According to the fifth aspect of the present invention, the terminals 10-1 to 10-n which can be located in the location registration area formed under the control are based on the location information indicating the individually located location registration area and the authentication standard. Storage means 11 in which certain authentication information is stored
Database maintenance means 13A for reflecting the position information and the authentication information given at a predetermined frequency by the different home memory station devices 12-1 to 12-p in the storage means 11.
And, among the terminals 10-1 to 10-n, new history information indicating the history of calls that occurred prior to the terminal, together with the identification information and the authentication key, for the terminal to be authenticated where the call occurred. When given based on the call setup procedure, the subordinate VLRs 14-1 to 14-P include, for a predetermined time, acquired history information indicating the history of calls that occurred prior to the authenticated terminal. Call history requesting means 15A for issuing the request of
When the acquired history information is given by any of the LRs 14-1 to 14-P, the correlation between the acquired history information and the new history information, and the correlation between the authentication information stored in the storage unit 11 and the authentication key. In the home memory node device provided with an authentication unit 16A for performing authentication of the terminal to be authenticated based on these results, the authentication unit 16A
In response to a request given from any of 14-1 to 14-P,
The termination of the authentication process is suspended for the time included in the request.

According to a sixth aspect of the present invention, the terminals 10-1 to 10-n which can be located in the location registration areas formed under the control are based on location information indicating individually located location registration areas and authentication standards. Storage means 11 in which certain authentication information is stored
And database maintenance means 13B for reflecting the position information and the authentication information given at a predetermined frequency by the different home memory station apparatuses 12-1 to 12-p in the storage means 11.
And, among the terminals 10-1 to 10-n, new history information indicating the history of calls that occurred prior to the terminal, together with the identification information and the authentication key, for the terminal to be authenticated where the call occurred. When given based on the call setup procedure of a call, a request for acquired history information indicating the history of calls that occurred prior to the terminal to be authenticated is sent to any of the subordinate VLRs 14-1 to 14-P. Outgoing call history request means 15B and call history request means 15B
Subordinate VLR 14-1 in response to a request issued by
~ 14-P, when the acquired history information is given, the correlation between the acquired history information and the new history information,
In a home memory node device provided with an authentication unit 16B for performing a correlation between the authentication information stored in the storage unit 11 and the authentication key and performing authentication of a terminal to be authenticated based on the result, a call history request unit 15B Is characterized by issuing this request to a VLR different from the VLR, when a notification indicating that the history information cannot be given from the VLR that was the destination of the request for the acquired history information is given earlier. And

According to a seventh aspect of the present invention, the terminals 10-1 to 10-n which can be located in the location registration area formed under the control are based on the location information indicating the individually located location registration area and the authentication standard. Storage means 11 in which certain authentication information is stored
And database maintenance means 13B for reflecting the position information and the authentication information given at a predetermined frequency by the different home memory station apparatuses 12-1 to 12-p in the storage means 11.
And, among the terminals 10-1 to 10-n, new history information indicating the history of calls that occurred prior to the terminal, together with the identification information and the authentication key, for the terminal to be authenticated where the call occurred. When given based on the call setup procedure of a call, a request for acquired history information indicating the history of calls that occurred prior to the terminal to be authenticated is sent to any of the subordinate VLRs 14-1 to 14-P. Outgoing call history request means 15B and call history request means 15B
In response to the request issued by the VLR, when the acquired history information is given by the VLR to which the request is directed,
An authentication unit 16B that performs a correlation between the acquired history information and the new history information and a correlation between the authentication information stored in the storage unit 11 and the authentication key, and authenticates the terminal to be authenticated based on the results. In the home memory node device provided with the authentication information, the authentication unit 16B performs the acquisition of the acquired history information and the new history information on the history information given from the VLR other than the VLR which was the destination of the acquired history information request in advance. It is characterized in that a correlation with the information and a correlation between the authentication information stored in the storage means 11 and the authentication key are obtained, and the terminal to be authenticated is authenticated based on these results.

FIG. 3 is a block diagram showing the principle of the present invention. The invention according to claim 8 is a terminal which is located in a location registration area formed under the terminal 30-1.
For 30-n, authentication information that is an individual authentication standard,
The storage means 31 in which the acquired history information indicating the history of the call that occurred earlier and the home memory station 32-1 to 32-P forming the redundant system which are operating as the active system are used. Determining means 33 for determining whether or not the acquired history information provided by the home memory station and corresponding to the identification information indicating the terminal where the call has occurred is stored in the storage means 31;
A history information processing means 34 for providing the acquired history information stored in the storage means 31 corresponding to the identification information to the current home memory station when the result of the determination made by the determination means 33 is true; By linking with the home memory station, the new authentication information and history information provided by the working home memory station together with the identification information are reflected on the storage means 31, and these authentication information and acquired history information are used for call setting. And a database maintenance means 35 applied to the log information processing means.
When the result of the determination made by the above is false, another V that forms a location registration area other than the location registration area under its control
It is characterized in that the LR is requested to substitute for the history information processing means 34, and in the process of the substitution, the LR needs to perform the coordination required for linking with the current home memory station.

According to the ninth aspect of the present invention, the terminal 30-1 to 30-n located in the location registration area formed under the control of the terminal 30-1 to 30-n individually obtains authentication information which is an authentication standard and a call generated earlier. And a plurality of home memory stations 32-1 to 32-3 forming a redundant system.
Among the 32-Ps, it is determined whether or not the acquired history information provided by the working home memory station operating as the working system and corresponding to the identification information indicating the terminal where the call originated is stored in the storage means 31. And a history information processing for giving the acquired history information stored in the storage means 31 corresponding to the identification information to the current home memory station when the result of the determination made by the determination means 33 is true. Means 34
In cooperation with the current home memory station, the new authentication information and the history information provided by the current home memory station are reflected on the storage means 31 together with the identification information, and the authentication information and the acquired history information are called. And a database maintenance unit 35 for applying to the call setting, and the history information processing unit 34 forms a position registration area other than the position registration area under the control when the result of the determination made by the determination unit 33 is false. Linking the other VLR to the active home memory station and its history information processing means 34
And a request to act on behalf of the client.

FIG. 4 is a block diagram showing the principle of the present invention. The invention according to claim 10 is a terminal that is located in a location registration area formed under the terminal 30-1-
For 30-n, storage means 41 in which position information individually indicating the position registration area and acquired history information indicating the history of previously generated calls are stored, and a plurality of home memory stations 42 forming a redundant system -1 to 42-P, whether or not acquired history information provided by the working home memory station operating as the working system and corresponding to the identification information indicating the terminal where the call originated is stored in the storage means 41. Determining means 43 for determining whether or not the position information and the acquired history information stored in the storage means 41 corresponding to the identification information are deleted when the result of the determination made by the determining means 43 is true. By linking the history information processing means 44 with the current home memory station, the new history information given by the current home memory station together with the identification information is reflected on the storage means 41, and the new And a database maintenance unit 45 for applying appropriate history information to the call setting of the call. The history information processing unit 44 performs location registration other than the location registration area when the result of the determination performed by the determination unit 43 is false. In another VLR forming an area under the area, the history information processing means 4
4 is characterized in that a request is made for a proxy, and in the process of the proxy, the coordination required for coordination with the current home memory station is performed.

According to the eleventh aspect of the present invention, for the terminals 30-1 to 30-n located in the location registration area formed under the subordinate, the location information individually indicating the location registration area and the location information indicating the location registration area are generated earlier. The storage means 41 in which acquired history information indicating the call history is stored, and a home memory station operating as a working system among a plurality of home memory stations 42-1 to 42-P forming a redundant system are provided. Determining means 43 for determining whether or not the location information and the acquired history information corresponding to the identification information indicating the terminal on which the call has occurred and the acquired history information are stored in the storage means 41; Is true, the storage means 41 corresponding to the identification information
History information processing means 44 for deleting the position information and the acquired history information stored in the current home memory station, and a new history information storage means provided by the current home memory station together with the identification information in cooperation with the current home memory station. And a database maintenance means 45 for applying the new history information to the call setting of the call to reflect the new history information to the call setting. The history information processing means 44 determines whether the result of the determination made by the determination means 43 is false. And requesting another VLR forming a location registration area other than the location registration area to link with the current home memory station and to act on behalf of the history information processing means 44.

According to a twelfth aspect of the present invention, in the VLR apparatus according to any one of the eighth to eleventh aspects, the history information processing means 34 and 44 are configured to control both the number and the attribute of the other VLRs. Alternatively, it is characterized in that a time adapted to either one is obtained, and a request is made to the working home memory station to suspend the processing related to the call over the time.

FIG. 5 is a block diagram showing the principle of the present invention. According to the invention of claim 13, the terminals 30-1 to 30-3 located in the location registration area formed under
For 30-n, storage means 31 storing authentication information as a reference for authentication and acquired history information indicating the history of a call that has occurred earlier, and another storage area forming a location registration area different from the location registration area. Determining means 33A for determining whether or not the acquired history information corresponding to the identification information indicating the terminal on which the call has occurred is stored in the storage means 31 provided by the VLR 51 and among the terminals 30-1 to 30-n And determination means 3
When the result of the determination made by 3A is true, the history information processing unit 34A which gives the acquired history information stored in the storage unit 31 corresponding to the identification information to another VLR 51.
And the new authentication information and the history information provided by the working home memory station together with the identification information by linking with the working home memory station operating as the working system among the plurality of home memory stations forming the redundant system. And a database maintenance unit 35A for applying the new authentication information and the history information to the call setting of the call, and the history information processing unit 34A performs the determination of the determination performed by the determination unit 33A. When the result is false, the fact is notified to another VLR 51.

FIG. 6 is a block diagram showing the principle of the present invention. The invention according to claim 14 provides a terminal 30-1 to a terminal 30-1 located in a location registration area formed under
For 30-n, storage means 41 storing location information indicating the location registration area and acquired history information indicating the history of the call that occurred earlier, and another location registration area different from the location registration area. Given by VLR 51,
And determining means 4 for determining whether or not the location information corresponding to the identification information indicating the terminal where the call has occurred and the acquired history information among the terminals 30-1 to 30-n are stored in the storage means 41.
3A; history information processing means 44A for deleting the position information and the acquired history information stored in the storage means 41 corresponding to the identification information when the result of the determination made by the determination means 43A is true; By linking with the working home memory station operating as the working system among the plurality of home memory stations forming the redundancy system, the new history information provided by the working home memory station together with the identification information is stored in the storage means 41. And database maintenance means 45A for reflecting the new history information to the call setting of the call.
When the result of the determination made by the determination means 43A is false, the history information processing means 44A reports that fact to another V
The LR 51 is notified.

According to a fifteenth aspect of the present invention, for terminals 30-1 to 30-n located in a subordinate location registration area, authentication information as an authentication reference and location information indicating the location registration area are provided. And the acquired history information indicating the history of the call that occurred earlier, and another VLR 5 that forms a location registration area different from the location registration area.
Determining means 33A for determining whether or not the acquired history information corresponding to the identification information indicating the terminal on which the call has occurred is stored in the storage means 31 among the terminals 30-1 to 30-n given by the terminal 30-1. When the result of the determination made by the determination unit 33A is true, the acquired history information stored in the storage unit 31 corresponding to the identification information is given to the home memory station operating as the active system. Processing means 34B
And the new authentication information and the history information provided by the working home memory station together with the identification information by linking with the working home memory station operating as the working system among the plurality of home memory stations forming the redundant system. And a database maintenance unit 35B for applying the new authentication information and the history information to the call setting of the call, and the history information processing unit 34B performs the determination of the determination performed by the determination unit 33A. When the result is false, the home memory station operating as the active system is notified of the fact.

According to the present invention, for the terminals 30-1 to 30-n located in the subordinate location registration area, the location information indicating the location registration area and the information of the call generated earlier. Given by the storage means 41 in which acquired history information indicating the history is stored, and another VLR 51 forming a location registration area different from the location registration area, and a call has occurred among the terminals 30-1 to 30-n. Determining means 43A for determining whether or not the position information corresponding to the identification information indicating the terminal and the acquired history information are stored in the storage means 41;
When the result of the discrimination performed by the discriminating unit 43A is true, a history information processing unit 44B that deletes the position information and the acquired history information stored in the storage unit 41 corresponding to the identification information; By linking with the working home memory station operating as the working system among the plurality of home memory stations to be formed, the new history information given by the working home memory station together with the identification information is reflected on the storage means 41. And a database maintenance unit 45A for applying the new history information to the call setting of the call. The history information processing unit 44B communicates with another VLR 51 when the result of the determination performed by the determination unit 43A is false. Different V
It is characterized by requesting the LR 52 to cooperate with a home memory station operating as an active system and to act on behalf of the history information processing means 44B.

(Operation) In the home memory node device according to the first aspect of the present invention, during the period in which the home memory node device operates as a standby system, the database maintenance means 13 uses the different home memory station devices 12-1 to 12-p to perform predetermined operations. The position information and the authentication information given at the frequency of are reflected in the storage unit 11.

The call history requesting means 15 comprises terminals 10-1 to 10
For -n, new history information indicating the history of calls that occurred prior to the terminal, along with the identification information and the authentication key, for the terminal to be authenticated where the call originated, is based on the call setup procedure for that call. When given, a request for acquired history information indicating the history of calls that occurred prior to the authenticated terminal is sent to the subordinate VLR.
It is emitted sequentially or in parallel to 14-1 to 14-P.

When the acquired history information is given by any of the above-described VLRs 14-1 to 14-P in response to this request, the authentication means 16 determines the correlation between the acquired history information and the new history information described above. The correlation between the authentication information stored in the storage means 11 and the above-mentioned authentication key is obtained, and the authentication of the terminal to be authenticated is performed based on these results. That is, even if any of the subordinate VLRs 14-1 to 14-P does not provide the acquired history information in response to the above request,
Similar requests are given to R14-1 to R-P sequentially or in parallel.

Therefore, when the present invention is applied and the home memory node device operating as the standby system starts operating as the active system, the failure of the home memory node device previously operating as the active system occurs. For example, even if the position information and the authentication information stored in the storage unit 11 do not match the current state due to the above, the opportunity to restore the position information and the authentication information is given, and the authentication is performed with high accuracy. And location registration is achieved.

In the home memory node device according to the second aspect of the present invention, the database maintenance means 21 is provided with any one of a redundant active system and a standby system which is configured together with the home memory node devices 12-1 to 12-p. As to whether the own station should operate. Further, the database maintenance means 21
Reflects the position information given at a predetermined frequency by the home memory node devices 12-1 to 12-p in the storage unit 11A during the period of operating as the standby system.

The position information matching request means 22 is a terminal that can be located in a position registration area formed under the terminal 10-1 to 10-n.
When the location information of a specific terminal on which a call has occurred is given based on the call setting procedure for the call, a request to match the location information with the VLRs 14-1 to 14 under the
Issued sequentially or in parallel to -P. That is, when the present invention is applied and the home memory node device operating as the standby system starts operating as the active system,
The above-mentioned request is also sent to the VLR forming the location registration area other than the location registration area where the above-mentioned call has occurred, among the VLRs 14-1 to 14-P individually forming the location registration areas formed under the subordinate. Can be

Therefore, even if the position information held in the storage unit 11A does not match the current state due to a failure of the home memory node device previously operating as the active system, the position information is not changed. Is provided, and authentication and location registration are achieved with high accuracy. In the home memory node device according to the third aspect of the present invention, in the home memory node device according to the first or second aspect, the standby request means 25 comprises: a switching center 23 for setting up a call; The suspension of the call setup is suspended for a time adapted to the combination or the number of VLRs for which a request should be issued to one or both of the VLRs associated with the exchange 23 among 1-14-P. Request.

That is, according to the above-mentioned request, VLR1
Even if it takes a long time for any of 4-1 to 14-P to provide the acquired history information, the call setting is performed based on the processing procedure of the exchange 23 or the VLR associated with the exchange described above. The point of interruption is postponed. Therefore,
As compared with the first and second aspects of the present invention, the probability of successful completion of authentication and location registration is increased.

In the home memory node device according to the fourth aspect of the present invention, in the home memory node device according to the first aspect, the database maintenance means 13 waits for its own station in addition to the position information and the authentication information. The storage system 11 reflects the standby system identifier indicating that the system is operating as a system. The call history requesting means 15 sends the subordinate VLRs 14-1 to
Among the 14-P, the VLR corresponding to the position information reflected in the storage unit 11 together with the standby system identifier is specified by the database maintenance unit 13. Further, the call history request means 15
Issues a request for acquired history information to a VLR other than the VLR.

That is, the request for the acquired history information is updated while operating as the standby system, and
Are not issued to the VLR that forms the location registration area indicated by the location information reflected in. Therefore, unnecessary resources are consumed and the efficiency of channel control and call setting is reduced due to the above-mentioned request being issued to the VLR forming the location registration area where the terminal to be subjected to location registration is not located. In addition, the deterioration of the responsiveness and the service quality is avoided.

In the home memory node device according to the fifth aspect of the present invention, the database maintenance means 13A
Storage means 1 for storing position information and authentication information given at a predetermined frequency by different home memory station apparatuses 12-1 to 12-p;
Reflect on 1.

The call history requesting means 15A, for the terminals to be authenticated, from among the terminals 10-1 to 10-n which can be located in the location registration area formed under the control, together with the identification information and the authentication key, When new history information indicating the history of a call that occurred prior to the terminal is given based on the call setting procedure for the call, the subordinate VLRs 14-1 to 14-P
A request for acquired history information indicating the history of calls that occurred prior to the authenticated terminal, including a predetermined time, is issued.

When the acquired history information is given by any of the VLRs 14-1 to 14-P in response to these requests, the authentication means 16A correlates the acquired history information with the above-mentioned new history information. And the correlation between the authentication information stored in the storage means 11 and the above-described authentication key, and the authentication of the terminal to be authenticated is performed based on these results. Further, the authentication unit 16A suspends the termination of the authentication process for the time included in these requests.

That is, the authentication to be performed by the home memory node device according to the present invention is based on the VLR corresponding to the location registration area where the terminal to be authenticated is located.
Is achieved with high accuracy without being terminated according to the requirements of Therefore, the VLR to be the destination of the above-mentioned acquired history information request and / or the amount of information to be transferred between these VLRs are large, or the time required to transfer the information is large. Even if the length is long due to congestion or the like, call setting with authentication is performed with high accuracy.

In the home memory node device according to the present invention, the database maintenance means 13B
Storage means 1 for storing position information and authentication information given at a predetermined frequency by different home memory station apparatuses 12-1 to 12-p;
Reflect on 1. The call history requesting means 15B is connected to the terminal 10-1.
Out of 10 to 10-n, for the terminal to be authenticated in which the call has occurred, new history information indicating the history of the call that occurred prior to the terminal, together with the identification information and the authentication key, is a call setting procedure for the call. , The subordinate VLRs 14-1 to 1
A request for acquired history information indicating the history of calls that occurred prior to the terminal to be authenticated is issued to any of the 4-P.

When the acquired history information is given by any of the subordinate VLRs 14-1 to 14-P in response to these requests, the authentication means 16B correlates the acquired history information with the above-mentioned new history information. And the correlation between the authentication information stored in the storage means 11 and the above-described authentication key, and the authentication of the terminal to be authenticated is performed based on these results. However, when the call history requesting unit 15B receives a notification indicating that the history information cannot be provided from the VLR to which the request for the acquired history information is previously given, the call history requesting unit 15B transmits the VLR.
Issue this request to a different VLR.

That is, the information source of the history information to be provided for the authentication is determined by the selection performed under the initiative of the home memory node device according to the present invention. Therefore,
In the home memory node device according to the present invention, authentication is performed with high accuracy based on a predetermined processing procedure. In the home memory node device according to the seventh aspect of the present invention, the database maintenance unit 13B stores the position information and the authentication information given by the different home memory station devices 12-1 to 12-p at a predetermined frequency. To reflect.

The call history requesting means 15B is connected to the terminals 10-1 to 10-1.
0-n, for the terminal to be authenticated where the call has occurred, new history information indicating the history of the call that occurred prior to the terminal together with the identification information and the authentication key is included in the call setting procedure for the call. VLR14-1 to 14-P
Request of the acquired history information indicating the history of the call that occurred prior to the terminal to be authenticated.

When the acquired history information is given by any of the subordinate VLRs 14-1 to 14-P in response to these requests, the authentication means 16B correlates the acquired history information with the above-mentioned new history information. And the correlation between the authentication information stored in the storage means 11 and the above-described authentication key, and the authentication of the terminal to be authenticated is performed based on these results.

Further, the authentication means 16B also determines whether or not the acquired history information and the new history information described above are given to the history information given from a VLR other than the VLR to which the request for the acquired history information was previously made. And the correlation between the authentication information stored in the storage unit 11 and the above-described authentication key,
Authentication of the terminal to be authenticated is performed based on these results. That is, the information source of the history information to be provided for authentication may be successively taken over from the VLR to another VLR without the intervention of the home memory node device according to the present invention.

Therefore, in the home memory node device according to the present invention, the load is reduced and the authentication is performed with high accuracy regardless of the time point when the reconfiguration is performed according to the redundant configuration. In the VLR apparatus according to the eighth aspect of the present invention, the determination means 33 is provided by a working home memory station operating as a working system among a plurality of home memory stations 32-1 to 32-P forming a redundant system. Then, it is determined whether or not the acquired history information corresponding to the identification information indicating the terminal on which the call has occurred is stored in the storage unit 31.

When the result of the determination is true, the history information processing means 34 gives the acquired history information stored in the storage means 31 corresponding to the identification information to the current home memory station. The database maintenance means 35 reflects new identification information and history information provided by the current home memory station together with the above-mentioned identification information in the storage means 31 by cooperating with the current home memory station. Further, the database maintenance unit 35 applies the authentication information and the acquired history information described above to the call setting.

When the result of the above-described determination is false, the history information processing means 34 requests another VLR forming a location registration area other than the location registration area to act on behalf of the history information processing means 34. Then, in the process of this substitution, the coordination necessary for linking with the working home memory station is performed.

That is, the history information to be used for authentication is not the home memory station, but the VLR according to the present invention.
Collected under the initiative of the device. Therefore, the efficiency and accuracy of authentication are improved in addition to the reduction of the load on the home memory station. In the VLR device according to the ninth aspect of the present invention, the determination means 33 is provided by a working home memory station operating as a working system among a plurality of home memory stations 32-1 to 32-P forming a redundant system. Then, it is determined whether or not the acquired history information corresponding to the identification information indicating the terminal on which the call has occurred is stored in the storage unit 31.

When the result of the determination is true, the history information processing means 34 gives the acquired history information stored in the storage means 31 corresponding to the identification information to the working home memory station. The database maintenance means 35 reflects new identification information and history information provided by the current home memory station together with the above-mentioned identification information in the storage means 31 by cooperating with the current home memory station. Further, the database maintenance unit 35 applies the authentication information and the acquired history information described above to the call setting.

If the result of the above-described determination is false, the history information processing means 34 sets another VLR for forming a location registration area other than the location registration area described above.
Then, a request is made to link with the current home memory station and to act on behalf of the history information processing means 34. That is, the history information to be used for authentication is efficiently provided to the working home memory station without concentrating the load on a specific VLR, and the amount of information to be transferred to the working home memory station is small. Can be suppressed.

Therefore, the efficiency and accuracy of authentication are improved in addition to the reduction of the load on the home memory station.
In the VLR apparatus according to the tenth aspect, the determining means 43 includes a plurality of home memory stations 42 forming a redundant system.
-1 to 42-P, whether or not acquired history information provided by the working home memory station operating as the working system and corresponding to the identification information indicating the terminal where the call originated is stored in the storage means 41. Is determined.

When the result of the determination is true, the history information processing means 44 deletes the position information and the acquired history information stored in the storage means 41 corresponding to the identification information described above. The database maintenance unit 45 reflects the new history information provided by the current home memory station together with the identification information described above in the storage unit 41 by cooperating with the current home memory station, and the new history information is described above. Applies to call setup for calls.

When the result of the determination is false, the history information processing means 44 substitutes the history information processing means 44 for another VLR which forms a location registration area other than the location registration area. A request is made and, in the process of this substitution, the coordination necessary for coordination with the current home memory station is performed. That is, the history information to be deleted during the call processing is not the current home memory station, but the V information according to the present invention.
Deleted under the initiative of the LR device.

Accordingly, home memory stations 42-1 to 42-1
Along with the reduction of the load of -p, the efficiency and accuracy of the call processing are improved. VL according to the invention of claim 11
In the R device, the discriminating means 43 determines a terminal provided by the working home memory station operating as the working system among the plurality of home memory stations 42-1 to 42-P forming the redundant system and in which the call is generated. It is determined whether or not the position information and the acquired history information corresponding to the indicated identification information are stored in the storage unit 41.

When the result of the determination is true, the history information processing means 44 deletes the position information and the acquired history information stored in the storage means 41 corresponding to the identification information described above. The database maintenance unit 45 reflects the new history information provided by the current home memory station together with the identification information described above in the storage unit 41 by cooperating with the current home memory station, and the new history information is described above. Applies to call setup for calls.

When the result of the above-mentioned determination is false, the history information processing means 44 associates the other home VLR with a current home memory station in another VLR forming a location registration area other than the location registration area, and A request is made to act on behalf of the history information processing means 44. That is, in the course of the call processing, the deletion of the history information is performed without the load being concentrated on the specific VLR.

Therefore, the efficiency and accuracy of the call processing are improved along with the reduction of the load on the home memory station.
According to a twelfth aspect of the present invention, there is provided a VLR apparatus according to any one of the eighth to eleventh aspects, wherein the history information processing means and are connected to another VL.
A time adapted to at least one of the number and attributes of R is obtained. Further, the history information processing means 34, 44
It requests the working home memory station to suspend the processing related to the call over the time.

That is, even if the amount of history information or other information to be transferred between VLRs or the number of VLRs to be the destination of such information is large,
The time required for processing including authentication is secured. Claim 13
In the VLR device according to the invention described in (1), the determination means 33
A is provided by another VLR 51 and the terminal 30
It is determined whether or not the acquired history information corresponding to the identification information indicating the terminal where the call has occurred is stored in the storage unit 31 among -1 to 30-n.

The history information processing means 34 A
When the result of the determination made by A is true, the acquired history information stored in the storage means 31 corresponding to the above-described identification information is given to another VLR 51. The database maintenance means 35A, by cooperating with the working home memory station operating as the working system among the plurality of home memory stations forming the redundant system, makes the new home memory station provided by the working home memory station together with the identification information described above. The authentication information and the history information are reflected in the storage unit 31.

Further, the database maintenance means 35A
The new authentication information and the history information described above are applied to the call setting of the call. Also, the history information processing means 34A
If the result of the above determination is false, that fact is notified to the other VLR 51 described above. That is, the authentication information and the history information to be referred to at the time of the call processing are collected under the processing performed by the other VLR 51 described above, not by the working home memory station, and are provided to the working home memory.

Accordingly, the load on the working home memory station and the amount of information to be transferred to and from the working home memory station are reduced, and the efficiency of call processing and the quality of service are improved. In the VLR apparatus according to the present invention, the determining means 43A is provided by another VLR 51 forming another location registration area, and among the terminals 30-1 to 30-n, a terminal in which a call has occurred. It is determined whether or not the position information and the acquired history information corresponding to the identification information indicating the above are stored in the storage unit 41.

When the result of the determination is true, the history information processing means 44A deletes the position information and the acquired history information stored in the storage means 41 corresponding to the identification information described above. The database maintenance means 45A, by cooperating with the working home memory station operating as the working system among the plurality of home memory stations constituting the redundant system, makes the new home memory station provided by the working home memory station together with the identification information described above. History information is reflected in the storage means 41.

Further, the database maintenance means 45A
The new history information is applied to the above-described call setting.
Further, when the result of the above-described determination is false, the history information processing means 44A notifies the other VLRs 51 to that effect.

That is, the information source of the history information to be referred to at the time of call setting is obtained under the initiative of the other VLR 51 described above. Therefore, the authentication is performed efficiently without the load being concentrated on the home memory node device or the specific VLR. VL according to claim 15
In the R device, the acquired history information provided by the other VLR 51 and corresponding to the identification information indicating the terminal on which the call has occurred among the terminals 30-1 to 30-n is stored in the storage unit 31. Is determined.

When the result of the determination is true, the history information processing means 34B uses the acquired history information stored in the storage means 31 corresponding to the identification information as the home memory station operating as the active system. Give to. The database maintenance means 35B includes a plurality of redundant home memory stations,
By linking with the working home memory station operating as the working system, the storage means 31 reflects the above-mentioned identification information and the new position information, authentication information and history information given by the working home memory station.

Further, the database maintenance means 35B
The new location information, authentication information, and history information are applied to the above-described call setting. Further, when the result of the above determination is false, the history information processing means 34B notifies the home memory station operating as the active system of the fact. That is, the source of the history information to be provided for call processing is determined by the selection made under the initiative of the home memory station described above.

Therefore, the call processing with authentication is performed with high accuracy without changing the procedure of the processing performed by the home memory station. In the VLR apparatus according to the present invention, the determining means 43A is provided by another VLR 51 forming another location registration area, and among the terminals 30-1 to 30-n, a terminal in which a call has occurred. It is determined whether or not the position information and the acquired history information corresponding to the identification information indicating the above are stored in the storage unit 41.

When the result of the determination is true, the history information processing means 44A deletes the position information and the acquired history information stored in the storage means 41 corresponding to the identification information described above. The database maintenance means 45A, by cooperating with the working home memory station operating as the working system among the plurality of home memory stations forming the redundant system, makes it possible to add the identification information and the new information given by the working home memory station. History information is reflected in the storage means 41.

Further, the database maintenance means 45A
The new history information is applied to the above-described call setting.
When the result of the above-described determination is false, the history information processing unit 44B outputs a VLR 52 different from the other VLRs 51.
Then, a request is made to link with the home memory station operating as the active system and to act on behalf of the history information processing means 44B.

That is, the information source of the history information to be provided for the call setting is determined by being successively taken over from one VLR to another VLR without the intervention of the home memory station. Therefore, the load on the home memory station is reduced, and the call processing is performed with high accuracy and efficiency.

[0091]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 7 is a diagram showing an embodiment of the present invention. In the figure, the difference of the configuration from the conventional example shown in FIG. 18 differs depending on each of the following embodiments, and the description thereof is omitted here.

Hereinafter, a first embodiment of the present invention will be described. This embodiment corresponds to the first and third aspects of the present invention. The difference between the present embodiment and the conventional example shown in FIG. 18 is that home memories 100-1 and 100-2 are provided instead of the home memory stations 110-1 and 110-2. Also, regarding the correspondence between the present embodiment and the components shown in FIG. 1 and FIG.
10-n, storage means 11, home memory station 100
-1 (100-2) is the home memory node device 12-1 to 12-12
-p, and VLR114-1 to 114-N are VLR14-1
~ 14-P, home memory station 100-2 (100-
1) is storage means 11, database maintenance means 13, call history request means 15, authentication means 16, and standby request means 25.
, And the exchanges 113-1 to 113-N correspond to the exchange 23.

FIG. 8 is an operation flowchart of the first to third and sixth embodiments according to the present invention. In the figure, the same is performed in the conventional example, and FIG.
The processes corresponding to the processes described in (1) and (2) are given the same reference numerals and will not be described in detail below. FIG.
FIG. 4 is a diagram illustrating the operation of the first and second embodiments of the present invention.

The operation of the first embodiment of the present invention will be described below with reference to FIGS. The feature of this embodiment lies in the following processing procedure performed by the home memories 100-1 and 100-2. The home memory station 100-1 operating as the active system has the mobile station 118 located in a location registration area (hereinafter, referred to as "preceding area") formed under the exchange 113-2. Even when the mobile station is moving to a location registration area (hereinafter, referred to as a "destination area") formed under the exchange 113-3, it may be lost due to a failure of the home memory station 100-1 or the like. It can be replaced by the hole memory station 100-2.

In such a case, the database of the home memory station 100-2 which has newly started operation as the active system stores the latest database contents or the difference data described above by the home memory station 100-1. Communication link 11
1 do not include the proper profile of the mobile station 118 unless updated via manual access. Further, when the mobile station 118 identifies that the location registration should be performed in the “migration destination area” based on the channel control procedure, the mobile station 118 sends the above described “location registration request” to the exchange 113-3 (FIG. 9). (1)).

The exchange 113-3, the VLR 114-3, and the home memory station 100-2 cooperate in the same manner as in the conventional example (FIGS. 9 (2) to (4)). Therefore, in the process of such coordination, home memory station 100-2 uses a VLR different from VLR 114-2 corresponding to the preceding area (here, for simplicity, it is indicated by reference numeral "114-1". The above-mentioned "call history count request" is transmitted to the address (FIG. 9 (5)).

However, the VLR 114-1 transmits the mobile station 1 indicated by the identification information included in the “call history count request”.
No call history count of 18 is held (Fig. 9 (6))
For this purpose, a “call history count notification” including a status indicating that is sent to the home memory station 100-2 (FIG. 9).
(7)). Upon identifying such a "call history count notification", the home memory station 100-2 determines whether or not the "call history count notification" includes a desired call history count (FIG. 8A). If the result of the determination is true, the same processing as in the conventional example (here, detailed description is omitted for simplicity) is performed.

[0098] However, if the "call history count notification" includes the status described above or the "call history count notification" is not obtained for a predetermined period, the home memory station 100-2 returns to the home memory station 100-2. , The VLR that was the destination of the previously transmitted “call history count request” (here,
Assume that there is only VLR114-1. ) Are selected based on a predetermined criterion (FIG. 8B).

If there is no VLR that satisfies such a criterion, the home memory station 100-2 suspends the processing related to the corresponding location registration. However, if any VLR that meets the criteria can be selected,
The home memory station 100-2 transmits the VLR (here, VLR 114-2 for simplicity) via the common channel signal network 112.
Assume that ) Is transmitted to the above-mentioned "call history count request" (FIGS. 8C and 9A).

At this time, the VLR 114-2 corresponds to the “preceding area” of the mobile station 118. Therefore, when the above “call history count request” is identified, the identification included in the “call history count request” is performed. The “call history count” corresponding to the information is acquired, and a “call history count notification” including the “call history count” is transmitted to the home memory station 100-2 via the common channel signaling network 112 (FIG. 9 (B)).

That is, even when the home memories 100-1 and 100-2 are reconfigured asynchronously with the location registration performed by the mobile station 118, the home memory database operating as the active system is The matching with the location registration area where the mobile station 118 is actually located is ensured. Therefore, according to the present embodiment, location registration is performed with high accuracy under the redundantly provided home memories 100-1 and 100-2, and service quality and reliability are improved.

In the present embodiment, the above-mentioned criteria are not shown in detail. However, such a criterion may be any as long as a VLR having desired requirements can be selected as a destination of the “call history count request”, or the traffic of the common channel signaling network 112 may be selected. If the increase in the number of channels and the decrease in the responsiveness of the channel control related to location registration are allowed, the common channel signaling network 112
May be used to select all VLRs that face each other.

In the present embodiment, the authentication process (FIG. 8 (2)) is completed in response to a valid “call history count notification”, and the “location” is set by the VLR 114-3 corresponding to the location registration area of the transfer destination. When a "registration continuation request" is given, a "registration erasure request" is transmitted in the same manner as in the conventional example (FIG. 8).
(4), FIG. 9 (14)). However, regarding the VLR to be the destination of the “registration deletion request”, the “valid“ call history count notification ”described above is added to the VLR 114-2 (the transfer source location registration Corresponding to the area), and is given to the home memory station 100-2 as identification information indicating the VLR 114-2. "

Further, regarding such identification information,
As long as the home memory station 100-2 operates as the active system, the home memory station 100-2 appropriately refers to it in the course of processing to be performed in a procedure adapted to call setting and channel control. Therefore, the efficiency of this processing is kept high while the present invention is effectively applied.

In this embodiment, the destination of the “call history count request” to be retransmitted is only the VLR 114-2. However, the number of VLRs selected based on the above-described criteria is plural. Is also good. Further, in such a case, the “call history count request” is broadcast-transmitted to all or a part of the selected VLRs, so that the resources shared for location registration are reduced or efficient. May be registered.

Hereinafter, a second embodiment of the present invention will be described. This embodiment corresponds to the second aspect of the present invention. The difference between the present embodiment and the first embodiment described above is that home memory stations 100A-1 and 100A-2 are provided instead of home memory stations 100-1 and 100-2.

The correspondence between the present embodiment and the components shown in FIG. 2 is described in the home memory station 100A-1 (1
00A-2) is storage means 11, database maintenance means 21
The correspondence is the same as that in the above-described first embodiment, except that the information corresponds to the position information matching unit 22. Hereinafter, the operation of the present embodiment will be described with reference to FIGS.

This embodiment is characterized in that the home memory station 10
The procedure of the following processing performed by 0A-1 and 100A-2 is as follows. Of the home memory stations 100A-1 and 100A-2, the home memory station that operates as the active system (here, for simplicity, it is assumed that the home memory station is indicated by reference numeral "100A-2") is one of the following. If the requirement is satisfied, as shown by a dotted line in FIG. 9, a process of transmitting a “call history count request” and receiving a “call history count notification” from the VLR to which the “call history count request” was sent Without performing any processing
The above-described authentication can be performed on the mobile station 118, or it can be recognized that the authentication has been completed.

Having the “call history count” of the mobile station 118 as part of the profile. The home memory station 1 via the communication link 111 prior to the time when the own station becomes the home memory of the active system from the standby system.
Based on the difference data and the like provided from 00A-1, information indicating that the authentication has been completed has been normally delivered. Also,
The home memory station 100A-2 performs the above-described authentication as a working home memory station, or after recognizing that the authentication has been completed, as shown in FIGS. 9 (9) to (25),
VLR 114-2, 114-3, exchange 11 as in the conventional example
By cooperating with 3-2, 113-3 and the mobile station 118, a process relating to the location registration of the mobile station 118 is tried.

However, in the process of such processing, the home memory station 100A-2, for example, in the profile of the mobile station 118, the information indicating the previously-existing area and the transfer destination area described above precedes. Unless it has been delivered from the home memory station 100A-1 which has been operating as the active system, when transmitting the "registration erasure request" (FIG. 9 (14)), the VLR 114 to be the destination of the "registration erasure request" -2 cannot be identified normally.

That is, the home memory station 100A-2 has V
When the above-described “registration deletion request” is sent to a VLR other than the LR114-2, the exchange corresponding to the VLR performs a predetermined process even if it attempts to respond to a position registration request having no substance (FIG. 9 (15)). To (17)) cannot be performed normally. Therefore, this VLR sends an “erase completion notification” to home memory station 100A-2 (FIG. 9).
(18)) Not always.

If the home memory station 100A-2 does not receive the "deletion completion notification" for a predetermined time Tmax from the time when the above-mentioned "registration deletion request" is transmitted, the home memory station 100A-2 sets the "registration deletion request". A VLR other than the VLR that is the destination of the destination is selected based on a predetermined criterion (FIG. 8D). Further, the home memory station 100A-2 can select any VLR based on such a criterion (hereinafter, the VLR selected in this manner is referred to as an “alternative VLR”). The same “registration deletion request” is sent to the alternative VLR (FIGS. 8 (E) and 9 (C)), and the process of waiting for the “deletion completion notification” (FIG. 9 (d)) is repeated.

Therefore, as for the mobile station 118, as long as a VLR corresponding to the above-mentioned preceding area can be selected as the above-mentioned alternative VLR, the “call history count” is stored in the home memory stations 100A-1 and 100A-2. Even if the home memories 100A-1 and 100A-2 are reconfigured even if they are stored in advance as a part of the profile, the location registration can be performed stably and with high accuracy regardless of when the reconfiguration is performed. Will be

In each of the above-described embodiments, when the number of VLRs to be the destination of the “call history count request” is large, the length of the period in which each VLR should wait for the “call history count request” is determined. A command indicating that extension should be performed may be transmitted by the home memory 100-2.

Hereinafter, a third embodiment of the present invention will be described. This embodiment corresponds to the fourth aspect of the present invention. The configuration of the present embodiment is the same as the configuration of the above-described second embodiment, and a description thereof will be omitted. The correspondence between the present embodiment and the components shown in FIG. 1 is the same as the correspondence in the above-described first embodiment.

The operation of the present embodiment will be described below with reference to FIGS. The difference between this embodiment and the above-described second embodiment lies in the following processing procedure performed by the home memory station 100A-2 as an active home memory station. The profiles to be stored as databases in the home memory stations 100A-1 and 100A-2 respectively correspond to the identification information of the individual mobile stations. Is configured as a set of records that includes a system configuration identifier indicating which of them has been operated in a specific field.

The value of the system configuration identifier is as follows.
Hereinafter, for simplicity, it is assumed that the home memory station is set to “1” when the home memory station is operating as the active system, and is set to “0” when the home memory station is operating as the standby system. Assume. By the way, when the home memory station 100A-2 starts operating from the standby system as the active system, the system configuration identifiers of all the records of the profile stored in the home memory station 100A-2 are set to "0". I have.

However, for a mobile station whose location information has been updated based on the normal channel control procedure during the period of operation as the active system, the home memory station 100A-2
Of the fields of the record corresponding to the mobile station identifier, the value of the system configuration identifier field is updated to “1”.
Also, the home memory station 100A-2 sends out a "call history count request" based on the same procedure as in the above-described first or second embodiment (FIGS. 8A and 8C). 9 (5),
(A)) At this time, it is determined whether or not the value of the system configuration identifier field is “0” for the record corresponding to the identification information included in the “call history count request” among the records described above. .

Further, when the result of the determination is true, home memory station 100A-2 omits sending the corresponding "call history count request". That is, the "call history count request" is sent only to the VLR in the location registration area where the location registration has been completed normally under the active home memory. Therefore, according to the present embodiment, useless resources are consumed due to the “call history count request” being issued to the VLR in the location registration area where the mobile station to be registered is not located, Degradation of channel control efficiency, responsiveness and quality of service is avoided.

Hereinafter, a fourth embodiment of the present invention will be described. This embodiment corresponds to the eighth and thirteenth aspects of the present invention. The difference between the present embodiment and the first to third embodiments is that the VLRs 114-1 to 114-1
The point is that VLRs 101-1 to 101-N are provided instead of -N. Further, regarding the correspondence between the present embodiment and the components shown in FIGS.
~ 30-n, the home memory stations 100A-1, 100
A-2 corresponds to the home memory node devices 32-1 to 32-p, and the VLRs 101-1 to 101-N correspond to the storage unit 31, the determination units 33 and 33A, the history information processing units 34 and 34A and the database maintenance unit 35, 35A.

FIG. 10 is an operation flowchart of the fourth and eighth embodiments of the present invention. In the figure, the same processes are performed in the conventional example, and the processes corresponding to the processes shown in FIG. 22 are denoted by the same reference numerals, and detailed description thereof will be omitted below. FIG. 11 is a diagram for explaining the operation of the fourth and eighth embodiments of the present invention. In the figure, the same number is given to the delivery of a message corresponding to the message shown in FIG. 19, which is performed in the same manner in the conventional example, and the detailed description is omitted below.

The operation of this embodiment will be described below with reference to FIGS. 7, 10 and 11. The features of this embodiment are as follows.
The following procedure is performed by the VLRs 101-1 to 101-N. Each of the VLRs 101-1 to 101-N has a unique VLR that forms another location registration area (hereinafter, simply referred to as a “peripheral area”) arranged around the location registration area formed by its own station. And a database in which unique identifiers (hereinafter referred to as “peripheral VLR identifiers”) and relative distances are registered in advance.

The home memory station 100-1 operating as the active system is connected to the mobile station 118 located in the "prior service area" formed under the control of the exchange 113-2.
Even when the home memory station 100-1 is moving to the “migration destination area” formed under the control of the home memory station 100-1, it can be replaced by the home memory station 100-2 due to a failure or the like of the home memory station 100-1. .

In such a case, the database of the home memory station 100-2 which has newly started operation as the active system uses the latest database contents or the above-described difference data from the home memory station 100-1. Unless provided via link 111 or updated manually, it does not include the proper profile of mobile station 118. Further, when the mobile station 118 identifies that the location registration should be performed in the “migration destination area” based on the channel control procedure, the mobile station 118 sends the above described “location registration request” to the exchange 113-3.
Is transmitted (FIG. 11 (1)).

The exchange 113-3, the VLR 101-3, and the home memory station 100-2 cooperate in the same manner as in the conventional example (FIGS. 11 (2) to (4)). In the process of such coordination, the home memory station 100-2 establishes a VLR that is different from the VLR 101-2 corresponding to the preceding service area (here, for simplicity, it is assumed that the VLR is indicated by the code “101-1”). ) And sends the above-mentioned "call history count request" to the VLR (FIG. 11 (5)).

The "call history count request" includes:
The source is the home memory station 100-2 and any VLR
A flag indicating that this is not the case with a logical value “1” is included.
When the VLR 101-1 identifies the “call history count request”, the call history count of the mobile station 118 indicated by the identification information included in the “call history count request” is transmitted to its own station as a profile of the mobile station 118. It is determined whether or not it is held (FIGS. 10A and 11A).

If the result of the determination is true, the VLR 101-1 performs the same processing as in the conventional example. In such a case, the description of the processing performed by the VLR 101-1 and each unit associated with the VLR 101-1 is omitted here. However, if the result of the above determination is false, the VLR 101-1
Determines whether the logical value of the flag included in the corresponding “call history count request” is “1” (FIG. 10).
(B)).

Further, only when the result of the determination is true, the VLR 101-1 identifies the peripheral VLR identifiers corresponding to the peripheral areas described above in the order of decreasing relative distance to the location registration area formed by the own station. , The following processes (1) to (7) are performed based on the individual peripheral VLR identifiers. (1) The logic value of the flag included in the above-mentioned “call history count request” is updated to “0” (FIG. 10C). In addition, the "call history count request" in which the logical value of the flag is updated in this manner is hereinafter simply referred to as "call history count request" for simplicity.

(2) Among the VLRs 101-1 to 101-N, the above-mentioned “call history count request” is sent to the VLR indicated by the peripheral VLR identifier (hereinafter referred to as “alternate VLR”) via the common channel signaling network 112. (FIG. 10 (D), FIG. 11
(B)).

(3) In response to the “call history count request”, the “alternate VLR” waits for a later-described “history count notification” for a predetermined time. (4) If the "call history count notification" is obtained,
It is determined whether or not this “call history count notification” includes an effective “call history count” (FIG. 10E). (5) If the result of this determination is true, the corresponding “call history count notification” (here, for simplicity, the transmission source is sent to the home memory station 100-2 via the common channel signaling network 112). (It is assumed that a peripheral VLR identifier indicating the alternative VLR is included.) (FIG. 10 (F), FIG. 11 (C)).

(6) However, if the result of the above-described determination is false or the above-mentioned time has elapsed, it is determined whether or not there is another VLR to be applied subsequently (see FIG. 10 (G)). (7) If the result of the determination is false, the home memory station 100
A "call history count notification" including a status indicating that is sent to -2 (FIG. 10 (H)).

(8) However, if the result of this determination is true, the above-described processes (1) to (7) are performed based on the peripheral VLR identifier to be applied subsequently. On the other hand, alternative VLR
Is given the above-mentioned "call history count notification",
For the mobile station 118 indicated by the identification information included in the “call history count request”, it is determined whether or not the call history count is held in the mobile station 118 as a profile of the mobile station 118 (FIG. 10A). FIG. 11 (a)).

Further, when the result of the determination is true, the alternative VLR sends the above-mentioned “call history count request” to the VLR that is the transmission source of the above “call history count request” via the common channel signaling network 112.
Send "call history count notification" (FIG. 10 (b), FIG. 11)
(b)). However, if the result of the above determination is false, the substitute VLR determines whether the logical value of the flag included in the corresponding “call history count request” is “1” (FIG. 10 ( c)).

However, since the logical value of the flag is set to “0” in the process of the above-described processing, the result of such determination is not identified as true in the alternative VLR. Therefore, the alternative VLR is obtained by the above processing (1)
The status indicating that "call history count could not be obtained" to the VLR which is the transmission source of the above-mentioned "call history count request" via the common channel signaling network 112 without performing (8). Is transmitted (FIG. 10 (d)).

On the other hand, the home memory station 100-2 has the VLR
When any “call history count notification” is given by 101-1, it is determined whether or not a desired call history count is included in the “call history count notification”, and if the result of the determination is true, The same processing as in the conventional example (FIG. 11 (D), except that it is directly linked to the VLR indicated by the identifier (the identifier indicating the VLR 101-1 or the previously described peripheral VLR identifier) included with the call history count. (9)-(25))
(A detailed description is omitted here for simplicity.)

However, if the “call history count notification” includes the status described above or the “call history count notification” is not obtained for a predetermined period, the corresponding mobile station 118 is notified. Foresee, update, and certify related profiles. That is, the call history count of the mobile station 118 for which the location registration is to be performed is collected under the initiative performed by the VLR 101-1 on behalf of the home memory station 100-2.
-2.

Therefore, according to the present embodiment, the home memory station 1 is different from the first to third embodiments described above.
The load of 00-1 and 100-2 and the home memory station 1
In addition to reducing the amount of information to be transferred between 00-1 and 100-2 and the individual VLRs, the efficiency of location registration and the improvement of service quality are improved.

Hereinafter, a fifth embodiment of the present invention will be described. This embodiment corresponds to the inventions described in claims 6, 9, and 15. The difference between this embodiment and the fourth embodiment described above is that VLRs 101A-1 to 101A-N are provided instead of VLRs 101-1 to 101-N. Also, regarding the correspondence between the present embodiment and the components shown in FIGS. 1, 3 and 5, the home memory station 10
0-1 and 100-2 correspond to the storage means 11, the database maintenance means 13B, the call history request means 15B and the authentication means 16B, and the VLRs 101A-1 to 101A-N correspond to the storage means 3.
1, discrimination means 33, 33A, history information processing means 34, 3
Except for the point corresponding to 4B and the database maintenance means 35B, the correspondence is the same as in the first to third embodiments described above.

FIG. 12 is an operation flowchart of the fifth embodiment of the present invention. In the figure, the same processes are performed in the conventional example, and the processes corresponding to the processes shown in FIG. 22 are denoted by the same reference numerals, and detailed description thereof will be omitted below. FIG. 13 is a diagram for explaining the operation of the fifth embodiment of the present invention. In the figure, the same number is given to the delivery of a message corresponding to the message shown in FIG. 19, which is performed in the same manner in the conventional example, and the detailed description is omitted below.

Hereinafter, the operation of the present embodiment will be described with reference to FIGS. 7, 12 and 13. The difference between this embodiment and the above-described fourth embodiment is that the VLRs 101A-1 to 101 are different.
The procedure of the following processing performed by the AN is as follows. VLR101-1 ~
101-N indicates that a unique unique peripheral VLR identifier and a relative distance are previously set for VLRs forming a “peripheral area” which is a position registration area arranged around the position registration area formed by the own station. It has a registered database.

The home memory station 100-1 operating as the active system is connected to the mobile station 118 located in the "prior service area" formed under the control of the exchange 113-2.
Even in the state where the home memory station 100-1 is moving to the “migration destination area” formed under the subordinate 3-3, the home memory station 100-1 can be replaced by the hole memory station 100-2 due to a failure or the like. .

In such a case, the database of the home memory station 100-2, which has newly started operation as the active system, transmits the latest database contents or the difference data described above from the home memory station 100-1. Unless provided via link 111 or updated manually, it does not include the proper profile of mobile station 118. Further, when the mobile station 118 identifies that the location registration should be performed in the “migration destination area” based on the channel control procedure, the mobile station 118 sends the above described “location registration request” to the exchange 113-3.
Is transmitted (FIG. 13 (1)).

The exchange 113-3, the VLR 101-3, and the home memory station 100-2 cooperate in the same manner as in the conventional example (FIGS. 13 (2) to (4)). In the process of such coordination, the home memory station 100-2 establishes some VLR different from the VLR 101-2 corresponding to the preceding area (here, it is assumed that the ) Is selected, and the above-mentioned “call history count request” is transmitted to the VLR (FIG. 13 (5)).

The "call history count request" includes:
The flag described above is not included. Upon identifying the “call history count request”, the VLR 101-1 identifies the mobile station 11 indicated by the identification information included in the “call history count request”.
Regarding No. 8, it is determined whether or not the call history count is held in the mobile station 118 as a profile of the mobile station 118 (FIGS. 12A and 13A).

If the result of the determination is true, the VLR 101-1 performs the same processing as in the conventional example. In such a case, the description of the processing performed by the VLR 101-1 and each unit associated with the VLR 101-1 is omitted here. However, if the result of the above determination is false, the VLR 101-1
Performs the following processes (a) to (c).

(A) In the corresponding “call history count request”,
An HLR identifier indicating the home memory station 100-2 that is the source of the "call history count request" is added (FIG. 12).
(B)). Note that the “call history count request” to which the HLR identifier is added in this manner is simply referred to as “call history count request” for simplicity.

(B) Among the VLRs 101-1 to 101-N, the “call history count request” is transmitted to all the alternative candidate VLRs indicated by the individual peripheral VLR identifiers via the common channel signaling network 112. (FIG. 12 (D), FIG. 13 (B)). (c) The home memory station 100 via the common channel signaling network 112
-2, "The call history count was not obtained"
(Call history count notification) including a status indicating the transmission source alternative VLR for convenience.
Assume that it contains an R identifier. ) (FIG. 12 (F),
FIG. 13 (C)).

Further, the alternative candidate VLR is the VLR 100-1.
When the “call history count request” given by the above is identified, the above-mentioned HLR is used as the destination of the above-mentioned “call history count notification” (FIG. 13D) and “erasure completion notification” (FIG. 13 (18)). The same processing as in the conventional example is performed except that the home memory station 100-2 indicated by the identifier is selected. That is, the alternative candidate VLR corresponding to the location registration area where the mobile station to be subjected to location registration is located is used to transfer various information to and from the working home memory station 100-2 through the mediation of the VLR 101-1. The VL, not below
This can be performed by directly cooperating with the home memory station 100-2 instead of the R101-1.

Therefore, according to the present embodiment, the location registration is performed more efficiently without the load being concentrated on a specific VLR, as compared with the fourth embodiment described above. Also, in the present embodiment, compared to the first to third embodiments, the load on the home memory stations 100-1 and 100-2 and the transfer between the home memory stations 100-1 and 100-2 are transferred. In addition to reducing the amount of information to be used, the efficiency of location registration
Service quality is improved.

Hereinafter, a sixth embodiment of the present invention will be described. This embodiment corresponds to the tenth and fourteenth aspects of the present invention. The difference between this embodiment and the fifth embodiment described above is that VLRs 101B-1 to 101B-N are provided in place of VLRs 101A-1 to 101A-N. Also, regarding the correspondence between the present embodiment and the components shown in FIG. 9, the VLRs 101B-1 to 101B-N store the storage unit 41, the determination units 43 and 43A, the history information processing units 44 and 44A, and the database maintenance unit 45, 45A
Is the same as the corresponding relationship in the first to fourth embodiments described above, except for the point corresponding to.

FIG. 14 is an operation flowchart of the sixth embodiment of the present invention. FIG. 15 is a diagram illustrating the operation of the sixth embodiment of the present invention. Hereinafter, the operation of the present embodiment will be described with reference to FIGS. 7, 14, and 15. The feature of this embodiment lies in the following processing procedure performed by the VLRs 101B-1 to 101B-N.

Of the home memory stations 100A-1 and 100A-2, the home memory station operating as the active system (here,
For the sake of simplicity, it is assumed that it is indicated by reference numeral "100A-2". ) Indicates that if any of the following requirements are met,
As shown by the dotted line in FIG. 5, without performing the process of transmitting the “call history count request” and the process of receiving the “call history count notification” from the VLR to which the “call history count request” was sent, The above-described authentication can be performed on the mobile station 118, or it can be recognized that the authentication has been completed.

Having the “call history count” of the mobile station 118 as part of the profile. Indicates that the authentication has been completed based on the difference data and the like provided from the home memory station 100A-1 via the communication link 111 prior to the time when the station becomes the home memory station from the standby system to the working system. Information passed successfully. By the way, the VLRs 101-1 to 101-N are arranged around a location registration area formed by the own station, and form a peripheral area that can be located when a mobile station located in the location registration area moves. The VLR has a database in which individual unique “peripheral VLR identifiers” and relative distances are registered in advance.

After the home memory station 100A-2 performs the above-described authentication as the current home memory station, or recognizes that the authentication has been completed, the home memory station 100A-2 returns to the state shown in FIG.
Based on the procedure shown in (25), VLR101B-2, 10
1B-3, exchanges 113-2 and 113-3, and mobile station 118
Is performed in the same manner as in the conventional example, so that processing relating to location registration of the mobile station 118 is tried.

However, in the process of such processing, the home memory station 100A-2, for example, in the profile of the mobile station 118, the information indicating the previously-existing area and the transfer destination area described above precedes. Active home memory station 100A
Unless the VLR 101B-1 has been transferred, the VLR 101B-2 to be the destination of the "registration deletion request" cannot be normally determined when transmitting the "registration deletion request" (FIG. 15 (14)). .

Therefore, home memory station 100A-2
Transmits, for example, a “registration deletion request” to the VLR 101B-1 corresponding to the location registration area where the mobile station 118 was located earlier (FIG. 15A). In such a case, when the VLR 101B-1 identifies the "registration deletion request", the VLR 101B-1 determines whether or not the profile of the mobile station 118 indicated by the identification information included in the "registration deletion request" is held in the own station. Is determined (FIGS. 14A and 15B).

Further, if the result of the determination is true, the VLR 101B-1 transfers this "registration deletion request" to the corresponding exchange 113-1 via the common channel signaling network 112 (FIG. 14 (B) and FIG. 15 (C)). The exchange 113-1
When the “registration deletion request” is identified, the profile corresponding to the identification information included in the “registration deletion request” is deleted (FIG. 15D).

Further, the exchange 113-1 generates the "deletion completion notification" including the identification information, which means that the profile has been deleted in this way, and the VLR 101B-1 via the common channel signaling network 112. The "deletion completion notification" is sent to the address (FIG. 15 (E)). VLR101B-1
Identifies this “deletion completion notification” (FIG. 15 (F)),
The profile corresponding to the identification information included in the “erasure completion notification” is erased (FIG. 14 (7)), and the “erasure completion notification” is sent to the home memory station 110-1 (FIG. 14 (D)). ), FIG. 15 (G)).

The “deletion completion notification” includes the VLR
A “source identifier” indicating 101B-1 is included. However, if the result of the above-described determination is false, VLR1
01B-1 is an individual V indicated by the “peripheral VLR identifier”.
The above-mentioned “registration deletion request” is transmitted to the LR (hereinafter, referred to as “alternative candidate VLR”) (FIG. 14 (E), FIG. 15).
(H)).

[0160] The "registration deletion request" includes the "source identifier" indicating the VLR 101B-1 as the transmission source. When each of the alternative candidate VLRs identifies the above-described “registration deletion request”, it determines whether or not the profile of the mobile station 118 indicated by the identification information included in the “registration deletion request” is held in its own station. (FIG. 14 (F)).

Further, only when the result of the determination is true, the replacement candidate VLR is connected to the corresponding exchange via the common line signal line 112 (hereinafter, for simplicity, reference numeral "11").
3-2 ". ) Is transferred to this "registration deletion request" (FIG. 14 (G)). When the exchange identifies the "registration deletion request", the exchange deletes the profile corresponding to the identification information included in the "registration deletion request" (FIG. 1).
5 (16)).

Further, the exchange generates a "deletion completion notice" including the identification information and the transmission source identifier included in the corresponding "registration deletion request", which means that the profile is deleted in this way. Together with the common channel signaling network 11
Then, the "deletion completion notification" is transmitted to the corresponding alternative candidate VLR via the communication device 2 (FIG. 15 (17)). Alternative candidate VLR
Deletes the profile corresponding to the identification information included in the “deletion completion notification” (FIG. 14 (H)), and determines whether the transmission source identifier included in the “deletion completion notification” indicates another VLR. Is determined (FIG. 14 (I)).

Further, the replacement candidate VLR is transmitted to the VLR 101B-1 indicated by the transmission source identifier via the common channel signaling network 112 only when the result of the determination is true.
The above-mentioned “deletion completion notification” is transmitted (FIG. 14 (J), FIG.
5 (H)). Also, the VLR 101B-1 waits for such a "deletion completion notification" for a predetermined time Tmax which has elapsed from the time when the above-mentioned "registration deletion request" is transmitted to any alternative candidate VLR.

Further, the VLR 101B-1 identifies the "erasure completion notification" (FIG. 15 (I)), and determines whether the transmission source identification information included in the "erasure completion notification" corresponds to the VLR 101B-1. Is determined (FIG. 14 (K)). The result of such determination is always "true" because the VLR 101B-1 is the source of the "registration deletion request" described above.

Therefore, the VLR 101B-1 sends the above-mentioned "erase completion notification" to the home memory station 100A-2 only when the result of the determination is "true" (FIG. 14 (L), FIG. 15 (J)). However, VLR101B-1
Includes a status indicating that no “erase completion notification” has been given from any of the alternative candidate VLRs at the time when the above-described time Tmax has elapsed, and the identification information of the VLR 101B-1. Is transmitted as a transmission source identifier to the home memory station 100A-2.

The home memory station 100A-2, upon receiving any of the above-mentioned “deletion completion notification”, sends this “deletion completion notification” unless the “erasing completion notification” includes the status described above. V indicated by the included source identifier
By linking with the LR, a series of processes relating to the location registration of the mobile station 118 are performed. Therefore, the mobile station 11
Regarding No. 8, as long as the above-mentioned alternative candidate VLR can be properly selected, even if the reconfiguration of the home memory stations 100A-1 and 100A-2 is performed at any time, it is stable and highly accurate. Location registration is performed.

Hereinafter, a seventh embodiment of the present invention will be described. This embodiment corresponds to the inventions according to claims 7, 11, and 16. The difference between this embodiment and the previously described sixth embodiment is that the VLRs 101B-1 to 101B
The point is that VLR101C-1 to 101C-N are provided in place of -N. In addition, regarding the correspondence between the present embodiment and the components shown in FIG.
00A-2 is storage means 11 and database maintenance means 13
B, corresponding to the call history requesting means 15B and the authentication means 16B, and the VLRs 101C-1 to 101C-N are stored in the storage means 41,
Determination means 43, 43A, history information processing means 44, 44A
This is the same as the corresponding relationship in the above-described first to fourth embodiments, except that it corresponds to the database maintenance means 45 and 45A.

FIG. 16 is an operation flowchart of the seventh embodiment of the present invention. FIG. 17 is a diagram for explaining the operation of the seventh embodiment of the present invention. Hereinafter, the operation of the present embodiment will be described with reference to FIGS. 7, 16 and 17.

The VLRs 101C-1 to 101C-N are identification information included in the "registration deletion request" given by the home memory station (FIG. 17B) in the same manner as in the above-described sixth embodiment. It is determined whether or not the profile of the mobile station 118 shown is held in the own station (FIG. 16A). However, if the result of the determination is false, these VLRs
The processing performed by 101C-1 to 101C-N is different from the processing performed in the above-described sixth embodiment as described later.

In the following, in order to facilitate comparison with the above-described sixth embodiment, attention will be focused on only the VLR 101C-1. When the result of the above-described determination is false, the VLC 101C-1 sends the above-described “registration deletion request” to the replacement candidate VLRs individually indicated by all “neighboring VLR identifiers” previously given as a database. Is transmitted (FIG. 16 (E)).

Note that this “registration deletion request” does not include any “source identifier” added in the above-described sixth embodiment. When each of the alternative candidate VLRs identifies the above-described “registration deletion request”, it determines whether or not the profile of the mobile station 118 indicated by the identification information included in the “registration deletion request” is held in its own station. (FIG. 16 (F)).

Further, the substitute candidate VLR transfers this “registration deletion request” to the corresponding exchange via the common line signal line 112 only when the result of the determination is true (FIG. 16 ( G)). When identifying the "registration deletion request", the exchange deletes the profile corresponding to the identification information included in the "registration deletion request" (FIG. 17 (16)).

Further, the exchange generates a "deletion completion notification" including the identification information and the transmission source identifier included in the corresponding "registration deletion request", which means that the profile is deleted in this way. Together with the common channel signaling network 11
Then, the "deletion completion notification" is transmitted to the corresponding alternative candidate VLR via the communication device 2 (FIG. 17 (17)).

The substitute candidate VLR has the “deletion completion notification”
(FIG. 16 (H)), and transmits the above-mentioned "deletion completion notification" to the working home memory station 100A-2 via the common channel signal network 112. (FIG. 16 (I), FIG. 17 (18)). The “erase completion notification” includes the alternative candidate VLR that is the transmission source.
Is included.

When any one of the above-described “erasure completion notifications” is given, home memory station 100A-2 associates with the VLR indicated by the transmission source identifier included in the “erasure completion notification” in the same manner as in the conventional example. Thus, a series of processes relating to the location registration of the mobile station 118 are performed. As described above, according to the present embodiment, the VLR1 is different from the sixth embodiment described above.
01C-1 does not compile any of the alternative candidate VLRs, and any of the alternative candidate VLRs and home memory station 100
A-2 can be directly linked.

Therefore, as for the mobile station 118, as long as the above-mentioned alternative candidate VLR can be properly selected, the home memory stations 100A-1 and 100A-2 may be reconfigured at any time. The location registration is performed stably and with high accuracy. Hereinafter, an eighth embodiment of the present invention will be described. This embodiment corresponds to claims 5 and 12.

The difference between this embodiment and the fourth to seventh embodiments is that the VLRs 101-1 to 101-N, 101
A-1 to 101A-N, 101B-1 to 101B-N, 101C
-1 to 101C-N perform the following processing,
01-1 to 101-N, 101A-1 to 101A-N, 101B
-1 to 101B-N and 101C-1 to 101C-N in association with the processing performed by the home memory stations 100A-1 and 100A-2.

The correspondence between the present embodiment and the components shown in FIGS.
A-1 and 100A-2 are storage means 11, database maintenance means 13A, call history request means 15A and authentication means 16A.
, VLR 101-1 to 101-N, 101A-1 to 1
01A-N, 101B-1 to 101B-N, 101C-1 to 10
Except that the 1C-N includes the history information processing means 34, 34, the correspondence is the same as that in the above-described first to seventh embodiments.

Hereinafter, the operation of the present embodiment will be described with reference to FIGS. 7, 12 and 13. VLR101-1-10
1-N, 101A-1 to 101A-N, 101B-1 to 101B
-N, 101C-1 to 101C-N indicate that when a "call history count request" or a "registration deletion request" is transmitted to another VLR, the length of a period described later should be extended. Extension request "is generated.

Furthermore, these VLRs 101-1 to 101
-N, 101A-1 to 101A-N, 101B-1 to 101B-
N, 101C-1 to 101C-N correspond to the home memory station 100.
A-1 and 100A-2, the home memory station operating as the active system (here, for the sake of simplicity, reference numeral "100A-
2 ". ) To the common channel signaling network 11
The above-mentioned "extension request" is transmitted via
(G), FIG. 13 (E)).

When the home memory station 100A-2 identifies such an "extension request", the home memory station 100A-2 responds to the "call history count notification" or the "registration deletion request" to make the individual VLs.
Regarding the “deletion completion notification” given by R, the maximum time during which the standby should be continued is updated to a prescribed value or a value included in the “extension request”. Therefore, according to the present embodiment, the home memory station 100A-2
Can perform a series of processes related to location registration with high accuracy even in the following case.

In the case where the number of VLRs to which the above-mentioned "call history count request" or "registration deletion request" is sent is large.-A common line signal commonly used to transfer information between these VLRs or the corresponding VLRs. When the network 112 is in a congestion state In the present embodiment, the time to be extended or set in accordance with the “extension request” is not specifically shown.

However, for such a time, for example, the number of selected VLRs, the maximum value of the relative distance of the selected VLR, the congestion of the communication link formed with the selected VLR The minimum value of the transmission speed of the communication link formed between the selected VLR and the area of the wireless zone formed under the selected VLR (may be a radius). ) May be set to a larger value as the total number of wireless zones formed under the selected VLR is larger.

Also, in each of the above embodiments, the present invention is applied to the mobile communication system. However, the present invention applies the small zone method and performs location registration and authentication (terminal) based on the VLR extension method. (Including those performed in accordance with the relocation of the system), it is also applicable to the WLL system. Furthermore, in each of the embodiments described above, the zone configuration, the channel arrangement, and the multiple access system to be applied are not specifically shown.

However, the present invention relates to these zone configurations,
Regardless of channel placement and multiple access scheme,
If the above-described location registration and authentication are performed, the present invention can be applied to any wireless transmission system. In each of the above-described embodiments, each VLR is configured as a device that forms a pair with a single exchange.

However, in the present invention, any of the VLRs may be configured as a device common to a plurality of exchanges, or may be built in a single exchange or configured as an integrated package or module. Further, in each of the above-described embodiments, the “call history count request”
And a “registration deletion request” are individually sent to the VLR to be the destination.

However, these "call history count requests"
And "registration deletion request", the V
If the number of LRs is plural, "call history count notification" or "deletion completion notification" sent by each VLR
These VLRs may be broadcasted (multicasted) if the sender is reliably identified at the receiving end.

In each of the above embodiments, the “call history count” is given as the number of calls that have actually occurred for any mobile station. However, if these "call history counts" are information provided for improving the accuracy of authentication, for example, they may be given as a history consisting of a combination or a row of attributes or the like of actually generated calls. .

Further, in each of the above embodiments, the alternative V
The criteria to be applied when selecting the LR and the alternative candidate VLR are not specifically shown. However, such criteria include, for example, location registration areas that are adjacent to each other, location registration areas that are preferentially selected in ascending order of relative distance, applicable mobile stations, or classified by predetermined attributes. A location registration area that has a high probability of being located for each desired time zone (including days of the week) based on the history of location registration areas that have actually been located for each group of mobile stations; Location registration area including the location predicted based on the result of speed measurement or positioning related to: ・ Of the above location registration areas, roads, railways or other tracks or points where the applicable mobile station can be located The location registration area where the mobile station is most likely to be located based on the geographical location and distribution may be any other reference.

Further, in each of the above-described embodiments, a procedure of a process to be performed to achieve location registration with authentication is described. However, the present invention is not limited to a call generated in response to such a location registration attempt, and is performed in a call setting process for an outgoing call or an incoming call in which authentication and reference of location information are performed, and in a process of the call setting. It may be realized as a process performed in both or one of the processes of the channel control.

Further, in each of the above-described embodiments, the procedure of processing to be performed by the home memory station and the VLR after the authentication performed by the home memory station is completed is shown. However, the procedure of such processing depends on not only the applied zone configuration and channel arrangement, but also the processing functions to be performed by the radio base station, the exchange, the VLR, and the home memory station, and the form of load distribution. The present invention can be applied irrespective of these.

[0192]

As described above, according to the first and second aspects of the present invention, when the home memory node device according to the present invention starts operating as the active system, it operates earlier as the active system. Even if the location information and the authentication information held in the storage unit do not match the current status due to a failure of the home memory node device, etc., an opportunity is provided to restore the location information and the authentication information. Location registration and authentication are performed with high accuracy.

According to the third aspect of the present invention, call setting including authentication is performed with higher accuracy than the first and second aspects of the present invention. Further, according to the invention described in claim 4, unnecessary resource consumption caused by a request for acquired history information to a VLR forming a location registration area where a terminal to be subjected to location registration is not located is reduced. In addition to a decrease in the efficiency of channel control and call setup, a decrease in responsiveness and quality of service is avoided.

Further, according to the fifth aspect of the present invention, both or one of the VLRs for which acquired history information can be requested and the amount of information to be transferred between these VLRs are large, or both are large. Even when the time required to transfer information is long due to congestion or the like, call setting with authentication is performed with high accuracy. Further, in the invention according to claim 6, authentication is performed with high accuracy without changing the procedure of processing to be performed by the home memory node device.

Further, according to the invention described in claim 7, the load is reduced regardless of the time point when the reconfiguration is performed.
Authentication is performed with high accuracy. Further, in the inventions according to claims 8 and 9, the efficiency and accuracy of authentication are improved in addition to the reduction of the load on the home memory station. According to the tenth and eleventh aspects of the present invention, the efficiency and accuracy of call processing are improved along with the reduction of the load on the home memory station.

Further, according to the twelfth aspect of the present invention, V
The amount of history information request or other information to be transferred between the LRs, or the V to be the destination of these information
Even when the number of LRs is large, the time required for normal execution of the call processing with authentication is secured. According to the thirteenth aspect of the present invention, the load on the working home memory station and the amount of information to be transferred to and from the working home memory station are reduced, and the efficiency of call processing and the quality of service are improved. Improvement is achieved.

Further, according to the present invention, the authentication is performed efficiently without the load being concentrated on the home memory node device or the specific VLR. In the invention according to claim 16, the load on the home memory station is reduced, and the call processing is performed with high accuracy and efficiency.

Therefore, in the mobile communication system to which these inventions are applied, by effectively utilizing the redundant configuration of the home memory station, the running cost can be reduced, and the work related to maintenance and operation can be made more efficient and labor-saving. And overall reliability and quality of service are enhanced.

[Brief description of the drawings]

FIG. 1 is a principle block diagram of the invention according to claims 1, 3 to 7;

FIG. 2 is a principle block diagram of the invention according to claims 2 and 3;

FIG. 3 is a principle block diagram of the invention according to claims 8, 9 and 12;

FIG. 4 is a principle block diagram of the invention according to claims 10 to 12;

FIG. 5 is a principle block diagram of the invention according to claims 13 and 15;

FIG. 6 is a principle block diagram of the invention according to claims 14 and 16;

FIG. 7 is a diagram showing an embodiment of the present invention.

FIG. 8 is an operation flowchart of the first to third and sixth embodiments of the present invention.

FIG. 9 is a diagram illustrating the operation of the first and third embodiments of the present invention.

FIG. 10 is an operation flowchart of the fourth and eighth embodiments of the present invention.

FIG. 11 is a diagram illustrating the operation of the fourth and eighth embodiments of the present invention.

FIG. 12 is an operation flowchart of the fifth embodiment of the present invention.

FIG. 13 is a diagram for explaining the operation of the fifth embodiment of the present invention.

FIG. 14 is an operation flowchart of the sixth embodiment of the present invention.

FIG. 15 is a diagram illustrating the operation of the sixth embodiment of the present invention.

FIG. 16 is an operation flowchart of the seventh embodiment of the present invention.

FIG. 17 is a diagram illustrating the operation of the seventh embodiment of the present invention.

FIG. 18 is a diagram illustrating a configuration example of a mobile communication system to which a VLR overhang method is applied.

FIG. 19 is a diagram showing a location registration process in a conventional example.

FIG. 20 is an operation flowchart of a conventional home memory station.

FIG. 21 is a diagram illustrating the operation of a conventional example.

FIG. 22 is a flowchart illustrating the operation of a VLR in a conventional example.

[Explanation of symbols]

10, 30 terminal 11, 11A, 31, 41 storage means 12, 32, 42 home memory node device 13, 13B, 21, 35, 35A, 35B, 45, 4
5A Database maintenance means 14, 14A, 52, 101, 101A, 101B, 1
01C, 114 VLR 15, 15A, 15B Call history request means 16, 16A, 16B Authentication means 22 Location information matching request means 23 Exchange station 25 Standby request means 33, 33A, 43, 43A Judgment means 34, 34A, 34B, 44, 44A, 44B History information processing means 51 Other VLRs 100, 100A, 110 Home memory stations 111, 115 Communication links 112 Common line signaling network 113 Switch 116 Radio base station 117 Radio zone 118 Mobile station

Continued on the front page F term (reference) 5J104 AA07 KA02 KA04 KA20 NA38 PA01 5K067 AA26 AA33 BB04 DD17 DD23 DD57 EE02 EE10 EE16 GG01 GG11 HH00 HH21 HH22 HH23 HH24 HH31 JJ64

Claims (16)

[Claims] 1. For a terminal that can be located in a location registration area formed under its control, a storage unit that stores location information indicating a location registration area individually located and authentication information that is a reference for authentication, and a different home. It identifies whether the own station should be operated as the active system or the standby system of the redundant system configured together with the memory node device. During the period of operating as the standby system, it is given by the different home memory station device at a predetermined frequency. Database maintenance means for reflecting the location information and the authentication information to be stored in the storage means; and, among the terminals, the terminal to be authenticated in which the call has occurred, together with the identification information and the authentication key. When new history information indicating the history of the call that has been given is given based on the call setting procedure for the call, the existing history indicating the history of the call that occurred prior to the authenticated terminal is provided. A call history request means for issuing a request for history information sequentially or in parallel to the VLR of the subordinate in response to a request issued by the call history request means,
When the acquired history information is given by any of the subordinate VLRs, the correlation between the acquired history information and the new history information, and the correlation between the authentication information stored in the storage unit and the authentication key. And a means for authenticating the terminal to be authenticated on the basis of these results. 2. A terminal which can be located in a location registration area formed thereunder, storage means for individually storing location information, a redundant active system and a standby system which are configured together with different home memory node devices. Database maintenance means for identifying which one of the stations should be operated, and during the period of operation as the standby system, reflecting the position information given by the different home memory station apparatus at a predetermined frequency to the storage means, When the location information of a specific terminal from which the call originated is given based on the call setting procedure for the call, a request for matching with the location information is sequentially sent to the subordinate VLR. Alternatively, a home memory node device comprising: a position information matching request unit issued in parallel. 3. The home memory node device according to claim 1, wherein an exchange for setting up a call and / or a VLR associated with that exchange among subordinate VLRs are addressed to one or both of them. A home memory node device further comprising a standby requesting unit for requesting suspension of the call setup for a time adapted to the combination or number of VLRs to be requested. 4. The home memory node device according to claim 1, wherein the database maintenance means includes, in addition to the position information and the authentication information, a standby system identifier indicating that the own station is operating as a standby system. The call history requesting means specifies the VLR corresponding to the position information reflected in the storage means together with the standby system identifier by the database maintenance means from among the subordinate VLRs, VL other than
A home memory node device for issuing a request for acquired history information to R. 5. For a terminal that can be located in a location registration area formed under the control thereof, a storage unit that stores location information indicating a location registration area individually located and authentication information that is a reference for authentication, and a different home. Database maintenance means for reflecting the location information and the authentication information given by the memory station device at a predetermined frequency in the storage means; and among the terminals, the terminal to be authenticated in which the call has occurred, together with the identification information and the authentication key. When new history information indicating the history of a call that occurred prior to the terminal is given based on the call setting procedure for the call, the subordinate VLR includes a predetermined time, and Call history requesting means for issuing a request for acquired history information indicating the history of calls that occurred prior to the terminal, and in response to the request issued by the call history requesting means,
When the acquired history information is given by any of the subordinate VLRs, the correlation between the acquired history information and the new history information, and the correlation between the authentication information stored in the storage unit and the authentication key. In the home memory node device comprising: an authentication unit that authenticates the terminal to be authenticated based on these results, wherein the authentication unit responds to a request given from any of the subordinate VLRs. A home memory node device for suspending the termination of the authentication process for a time included in the request. 6. For a terminal that can be located in a location registration area formed under the control thereof, a storage unit in which location information indicating a location registration area individually located and authentication information that is a reference for authentication are stored; Database maintenance means for reflecting the location information and the authentication information given by the memory station device at a predetermined frequency in the storage means; and among the terminals, the terminal to be authenticated in which the call has occurred, together with the identification information and the authentication key. Then, when new history information indicating the history of a call that occurred prior to the terminal is given based on the call setting procedure for the call, any new VLR under the Call history requesting means for issuing a request for acquired history information indicating the history of calls that have occurred, and in response to the request issued by the call history requesting means,
When the acquired history information is given by any of the subordinate VLRs, the correlation between the acquired history information and the new history information, and the correlation between the authentication information stored in the storage unit and the authentication key. In the home memory node device comprising: an authentication unit that performs authentication of the terminal to be authenticated based on these results, the call history request unit is a destination of the request for the acquired history information in advance. VLR
When a notification indicating that the history information cannot be given from the VLR is given, a VLR different from that VLR is given.
A home memory node device for issuing the request. 7. For a terminal that can be located in a location registration area formed under its control, a storage unit that stores location information indicating a location registration area individually located and authentication information that is a reference for authentication, and a different home. Database maintenance means for reflecting the location information and the authentication information given by the memory station device at a predetermined frequency in the storage means; and among the terminals, the terminal to be authenticated in which the call has occurred, together with the identification information and the authentication key. Then, when new history information indicating the history of a call that occurred prior to the terminal is given based on the call setting procedure for the call, any new VLR under the Call history requesting means for issuing a request for acquired history information indicating the history of calls that have occurred, and in response to the request issued by the call history requesting means,
When the acquired history information is given by the VLR that is the destination of the request, the correlation between the acquired history information and the new history information and the correlation between the authentication information stored in the storage unit and the authentication key are obtained. A home memory node device comprising: an authentication unit for performing a correlation and authenticating the terminal to be authenticated on the basis of these results, wherein the authentication unit comprises a VLR which has previously been a destination of the acquired history information request.
For the history information given from the VLR other than the above, the correlation between the acquired history information and the new history information and the correlation between the authentication information stored in the storage means and the authentication key are calculated. A home memory node device for performing authentication of the terminal to be authenticated based on the result of (1). 8. A storage means for storing authentication information, which is a reference for authentication individually, and acquired history information indicating a history of a call that has occurred earlier for terminals located in a location registration area formed under the control of the terminal. Acquired history information provided by the working home memory station operating as the working system among the plurality of home memory stations forming the redundancy system and corresponding to the identification information indicating the terminal where the call originated is stored in the storage means. Determining means for determining whether or not the stored history information is stored; and when the result of the determination performed by the determining means is true, the acquired history information stored in the storage means in correspondence with the identification information is History information processing means to be given to the working home memory station; and new authentication information given by the working home memory station together with the identification information by linking with the working home memory station. And database maintenance means for applying the authentication information and the acquired history information to the call setting of the call, wherein the history information processing means performs When the result of the discrimination is false, a request is made to another VLR which forms a location registration area other than the location registration area under the control of the history information processing means. A VLR characterized by performing the coordination required for coordination with a station.
apparatus. 9. A storage means for storing authentication information, which is a reference of authentication individually, and acquired history information indicating a history of a call which has occurred earlier for terminals located in a location registration area formed under the control of the terminal. Acquired history information provided by the working home memory station operating as the working system among the plurality of home memory stations forming the redundancy system and corresponding to the identification information indicating the terminal where the call originated is stored in the storage means. Determining means for determining whether or not the stored history information is stored; and when the result of the determination performed by the determining means is true, the acquired history information stored in the storage means in correspondence with the identification information is History information processing means to be given to the working home memory station; and new authentication information given by the working home memory station together with the identification information by linking with the working home memory station. And database maintenance means for applying the authentication information and the acquired history information to the call setting of the call, wherein the history information processing means performs When the result of the discrimination is false, a request is made to another VLR that forms a location registration area other than the location registration area under its control to link with the current home memory station and to act on behalf of the history information processing means. A VLR device characterized in that: 10. A storage in which, for terminals located in a location registration area formed under the control thereof, location information individually indicating the location registration area and acquired history information indicating a history of a call that occurred earlier. Means for obtaining, from among the plurality of home memory stations constituting the redundant system, acquired history information provided by the working home memory station operating as the working system and corresponding to the identification information indicating the terminal where the call originated. Determining means for determining whether or not the position information is stored in the storage means, and when the result of the determination performed by the determining means is true, the position information stored in the storage means corresponding to the identification information is obtained. History information processing means for deleting history information; and new history information provided by the current home memory station together with the identification information by linking with the current home memory station. And a database maintenance unit for applying the new history information to the call setting of the call, wherein the history information processing unit determines that the result of the determination performed by the determination unit is false. Is requested, another VLR forming a location registration area other than the location registration area under its control is requested to substitute for the history information processing means. VLR characterized by performing
apparatus. 11. A storage in which, for a terminal located in a location registration area formed under the control thereof, location information individually indicating the location registration area and acquired history information indicating a history of a call that occurred earlier. Means, among a plurality of home memory stations forming a redundant system, position information and acquired history information provided by an active home memory station operating as an active system and corresponding to identification information indicating a terminal where a call has occurred. Determining means for determining whether or not is stored in the storage means; and when the result of the determination performed by the determination means is true, the determination result is stored in the storage means in accordance with the identification information. History information processing means for deleting position information and acquired history information; and linking with the current home memory station, thereby providing the identification information together with the identification information provided by the current home memory station. Database maintenance means for reflecting the new history information to the storage means and applying the new history information to the call setting of the call, wherein the history information processing means determines whether or not the determination has been made by the determination means. When the result is false, a request is made to another VLR forming a location registration area other than the location registration area under its control to link with the working home memory station and to act on behalf of the history information processing means. VLR device. 12. The method according to claim 8, wherein
In the VLR device described in the paragraph, the history information processing means obtains a time adapted to the number and / or attribute of the other VLRs, and sends the call to the working home memory station over the time. A VLR device for requesting suspension of related processing. 13. A storage means for storing, for a terminal located in a location registration area formed under the control thereof, authentication information which is a reference for authentication and acquired history information indicating a history of a call which has occurred earlier. Whether or not acquired history information provided by another VLR forming a location registration area different from the location registration area and corresponding to identification information indicating a terminal where a call has occurred among the terminals is stored in the storage means. Determining means for determining whether or not the acquired history information stored in the storage means corresponding to the identification information is provided to the other VLR when a result of the determination performed by the determining means is true By linking the history information processing means with the working home memory station operating as the working system among the plurality of home memory stations forming the redundant system, the working information is stored together with the identification information. Database maintenance means for reflecting the new authentication information and the history information given by the system memory station to the storage means, and applying the new authentication information and the history information to the call setting of the call. The information processing means, when the result of the determination made by the determination means is false, notifies the other VLR to that effect. 14. A storage means for storing, for a terminal located in a location registration area formed under the control thereof, location information indicating the location registration area and acquired history information indicating a history of a call that has occurred earlier. The location information and acquired history information provided by another VLR having a location registration area different from the location registration area and corresponding to the identification information indicating the terminal on which the call originated are stored in the storage means. Determining means for determining whether or not the position information and the acquired history information stored in the storage means corresponding to the identification information when the result of the determination performed by the determining means is true History information processing means for deleting the information, and linking with the identification information by linking with a working home memory station operating as a working system among a plurality of home memory stations forming a redundant system. And database maintenance means for reflecting the new history information provided by the working home memory station to the storage means and applying the new history information to the call setting of the call. When the result of the determination made by the determination means is false, the VLR apparatus notifies the other VLR to that effect. 15. For a terminal located in a location registration area formed under the control of the terminal, authentication information as a reference for authentication, location information indicating the location registration area, and an acquired history indicating a history of a call that occurred earlier. Storage means for storing information and acquired history information provided by another VLR forming a location registration area different from the location registration area and corresponding to identification information indicating a terminal at which a call has occurred among the terminals. Determining means for determining whether or not is stored in the storage means; and when the result of the determination performed by the determination means is true, the determination result is stored in the storage means in accordance with the identification information. History information processing means for providing acquired history information to a home memory station operating as an active system; and a home memory station operating as an active system among a plurality of home memory stations forming a redundant system. In cooperation with the memory station, the new authentication information and the history information provided by the working home memory station together with the identification information are reflected on the storage means, and the new authentication information and the history information are used for the call. Database maintenance means for applying to call setting, wherein the history information processing means, when the result of the determination made by the determination means is false, notifies the home memory station operating as the active system to that effect. A VLR device for notifying. 16. A storage means for storing, for a terminal located in a location registration area formed under the control thereof, location information indicating the location registration area and acquired history information indicating a history of a call that occurred earlier. The location information and the acquired history information provided by another VLR forming a location registration area different from the location registration area and corresponding to the identification information indicating the terminal on which the call originated are stored in the storage means. Determining means for determining whether or not the stored information is stored; and when the result of the determination performed by the determining means is true, the position information and the acquired history corresponding to the identification information stored in the storage means. History information processing means for deleting information and, among a plurality of home memory stations constituting a redundant system, by linking with a working home memory station operating as a working system, the identification information Database maintenance means for reflecting the new history information provided by the working home memory station to the storage means, and applying the new history information to the call setting of the call. When the result of the determination made by the determination means is false, the VLR different from the other VLR is linked to a home memory station operating as an active system, A VLR device characterized by requesting a VLR.