JPH0965417A - Mobile communication network system and position information management method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operating efficiency of the system by reducing the number of times of position registration request of an entire system to a position information management section so as to relieve the load of the position information management section thereby reducing a time required for position registration processing. SOLUTION: A home location register 10 is provided with a 1st position information storage section, which stores a mobile communication exchange station number to identify the mobile communication exchange station managing a position at which a mobile equipment is in existence depending on positions of individual mobile equipments as position information. Each of mobile communication exchange stations 20, 21 is provided with a 2nd position information storage section. The 2nd position information storage section of the mobile communication exchange stations 20, 21 stores a position registration area number denoting a position registration area at a position where a mobile equipment is in existence as position information in response to the positions at which individual mobile equipments are in existence.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication network system, and more particularly, to a mobile system in which a location information management unit such as a home location register (HLR) manages location information indicating the location of a mobile device. The present invention relates to a mobile communication network system and a position information management method for improving the operating efficiency of a system when a machine moves.

[0002]

2. Description of the Related Art In a mobile communication network system constructed using a mobile terminal such as a so-called mobile phone, that is, a mobile device (hereinafter referred to as "MS"), the MS
To find out whereabouts of the MS, use a location information management unit, such as a home location register (hereinafter referred to as "HLR")
This is done by managing the location information indicating the whereabouts of.
In such a mobile communication network system, a location registration request is transmitted to the HLR each time the MS moves between location registration areas (hereinafter referred to as “LA”) as the MS moves.

That is to say, the location registration in the conventional mobile communication network system of this type is triggered by the MS being the LA.
This is the case when moving between. There may be a plurality of LAs under the control of one mobile switching center (hereinafter referred to as “MSC”), and there may be a plurality of the MSCs under the control of one HLR. Further, the HLR needs to manage the position information of all MSs in LA units.

[0004]

In the above-mentioned mobile communication network, since the location information is centrally managed by the HLR, the location registration request frequently occurs as the number of subscribers increases, and the location information of the HLR is increased. There was a possibility that the load would increase and the normality of the system could not be maintained.

Such an increase in the load due to the location registration request in the HLR greatly reduces the operating efficiency of the system. Further, since the inter-station communication by the location registration process is required, the location registration process itself took a considerable amount of time.

The present invention has been made to solve such a problem, and reduces the number of location registration requests to the location information management section of the entire system such as the HLR and reduces the load on the location information management section. It is an object of the present invention to provide a mobile communication network system and a location information management method that can shorten the time required for location registration processing and improve the operating efficiency of the system.

[0007]

A first mobile communication network system according to the present invention includes an HLR for managing position information in a mobile communication network, one or more MSCs connected to the HLR, and an MSC connected to the MSC. At least one base station (hereinafter, referred to as “BS”), and the HLR includes a first position information holding unit that holds and manages only position information for identifying the MSC. M
The SC is characterized by including a second position information holding means for holding and managing the position information of the LA corresponding to one or more BSs (claim 1).

A second mobile communication network system according to the present invention is a high-order processing device for managing position information in a mobile communication network, one or more low-order processing devices coupled to the high-order processing device, and the low-order processing device. And one or more BSs coupled to each other, and the upper processing device holds only position information for identifying the lower processing device.
The low-order processing device includes a first position information holding unit that manages, and the lower processing device includes a second position information holding unit that holds and manages the position information of the LA corresponding to one or more BSs. Item 2].

The upper processor may be a main processor (hereinafter referred to as "MPR"), and the lower processor may be a call processor (hereinafter referred to as "CPR"). ].

A first position information management method according to the present invention is
HLR that manages location information, 1 linked to said HLR
In the location information management method in a mobile communication network having the above MSC and one or more BSs coupled to the MSC, the HLR is allowed to manage only location information for identifying the MSC, and the MSC has one or more location information. BS
It is characterized in that the position information of the LA corresponding to is managed.

A second position information management method according to the present invention is
A location information management method in a mobile communication network, comprising: an upper processing unit for managing location information; one or more lower processing units coupled to the upper processing unit; and one or more BSs coupled to the lower processing unit, wherein It is characterized in that the upper processing device manages only the positional information for identifying the lower processing device, and the lower processing device manages the positional information of the LA corresponding to one or more BSs.

The upper processing device may be an MPR, and the lower processing device may be a CPR [claim 6]. In the mobile communication network system and the location information management method according to the present invention, the HLR manages only location information for identifying the MSC, and the MSC has one or more BSs.
Position information of the LA corresponding to the above, or the upper processing device manages only the position information for identifying the lower processing device, and the lower processing device manages the position information of the LA corresponding to one or more BSs. Depending on what you do, the HLR
Alternatively, the number of location registration requests to the host processor can be reduced, and M
The MS or the lower processing device controls the SC or the BS existing under the control of the lower processing device in the unit of LA so that the H-position is maintained while maintaining the substantial position information management.
The load of the LR or the upper processing device is reduced and the location registration processing time accompanying the movement of the MS coupled to the BS is shortened.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a mobile communication network system to which a position information management method according to the present invention is applied will be described below with reference to the drawings.

[First Embodiment] FIG. 1 shows a configuration of a first embodiment of a mobile communication network system according to the present invention.

The mobile communication network system shown in FIG.
HLR10, MSC20,21 and BS30,31 ...
3n, a gateway mobile communication switching center (hereinafter, referred to as “GMSC”) 40.

The HLR 10 is provided with a first position information holding unit (not shown), and the HLR 10 has M
SC20 and 21 are combined. The first position information holding unit of the HLR 10 identifies the MSC that manages the position where the MS exists, according to the position where the individual MS exists.
Information such as an SC number is stored / held as position information.

The MSCs 20 and 21 each have a second position information holding unit, which is not clearly shown. 33 are coupled to the MSC 20, and BSs 34, 35 ... 3n are coupled to the MSC 21. The second position information holding units of the MSCs 20 and 21 are
Corresponding MSC2 depending on the location of each MS
Information such as an LA number indicating an LA corresponding to the position where the MS exists is stored as position information in the second position information holding unit 0 or 21.

Each of the BSs 31 to 3n is MS-coupled when there is an MS in the base station area (hereinafter referred to as "BA"). L, which is a management unit of MS location information
A includes one or more BA. Switching center control area managed by each MSC 20, 21 (hereinafter referred to as "CA")
Includes one or more LA.

The GMSC 40 has HLR10 and HLR1.
It is coupled to the MSCs 20 and 21 managed by 0, manages the mobile communication network constructed by these, and couples this mobile communication network to at least one of a fixed network and other mobile communication networks.

The service area SA of the mobile communication network includes one or more CAs. The sequence of the first MS location registration in the mobile communication network system of FIG. 1 will be described with reference to FIG.

(1) The MSC which has sent the location registration request from the MS to the corresponding MSC and has received the location registration request from the MS
Requests the HLR and the MS for the procedure for authentication. That is, an authentication information read request is given from the MSC to the HLR, and an authentication request is given from the MSC to the MS.

(2) The MSC sends the authentication response from the MS and the HL.
If it is confirmed by the authentication information read response from R that the authentication results of both the HLR and the MS are normal, a location registration instruction is transmitted to the HLR, and as shown in FIG.
In the second position information storage unit, for each MS, the LA number as the position information, the mobile unit number for identifying the MS (hereinafter,
(Referred to as "MSI").

(3) The HLR that received the location registration instruction is shown in FIG.
As shown in FIG. 4, the MSC number for identifying the MSC corresponding to the location of the MS is stored and held in the first location information storage unit as the location information for each MS together with the MSI for identifying the MS. .

(4) When the above procedure is completed, the MSC sends the location registration acceptance information indicating that the location registration is completed to the MS, and the location registration procedure ends. If the authentication result is not normal, the location registration acceptance information indicating that the location registration has failed is transmitted from the MSC to the MS, and the process ends.

Next, the sequence of MS location registration from the second time onward in the mobile communication network system of FIG. 1 will be described with reference to FIG. (1) A location registration request is sent from the MS to the corresponding MSC, and the MSC that has received the location registration request from the MS requests the HLR and the MS for a procedure regarding authentication. MSC to HL
An authentication information read request is given to R, and an authentication request is given from MSC to MS.

(2) MSC sends authentication response from MS and HL
If it is confirmed from the authentication information read response from R that the authentication results of both the HLR and the MS are normal, the MS movement section is determined.

(3) If the moving sections are within the same CA, the position information (LA number) in the second position information storage unit of the MSC shown in FIG. 3 is updated and held. (4) When the movement section is outside the same CA, the location registration instruction is transmitted to the HLR and the MSC shown in FIG.
The position information (LA number) in the second position information storage unit of is updated and held for each of the source and destination MSCs.

(5) The HLR that received the location registration instruction is shown in FIG.
The position information (MSC number) of the first position information storage unit shown in FIG. (6) When the above procedure is completed, the MSC sends the location registration acceptance information indicating that the location registration is completed to the MS, and the location registration procedure ends.

If the result of the authentication is not normal, the location registration acceptance information indicating that the location registration has failed is transmitted from the MSC to the MS, and the process ends. Further, an incoming sequence in the mobile communication network system of FIG. 1 will be described with reference to FIG.

(1) When the GMSC receives an initial address message (hereinafter referred to as "IAM") from the fixed network, it performs incoming call information reading processing on the HLR. (2) The HLR returns the subscriber data of the corresponding MS (see FIG. 4) including the MSC number of the location information of the MS to the GMSC.

(3) In GMSC, MS by MSC number
Recognizes the MSC in which it is located and IA to the corresponding MSC
Send M. (4) The MSC sends a paging request to all BSs in the corresponding LA based on the LA number of the MS location information.

(5) The BS that has received a response from the MS sends the MSC
A general call response is sent back to. (6) The MSC sends a paging cancellation to a BS that has not received a paging response, and sends a channel allocation request and an authentication request to the BS that has received a response.

(7) If the authentication result is "OK", the synchronization burst 1 and the radio channel designation are transmitted to the corresponding BS, and the synchronization burst 2 is returned from the BS. (8) Send SETUP (setup) to BS, AL
When ERT (warning) is received, CPG (call progress) is sent to GMSC, and then CONN (connection)
When you receive the ANM (message response) to the GMSC,
Communication is possible by transmitting CONNACK (connection confirmation) to the BS.

(9) After the communication is completed and the authentication result is "N"
If it is "G", REL (release message) is sent from MSC to GMSC and from GMSC to fixed network, and RT (radio transmission) release from MSC to BS and MS release from BS to MS are performed. Send, Fixed Network to GMSC, and GMSC
The RLC (release completion) is sent from each device to the MSC, whereby the incoming call process ends.

By doing so, the number of times of access to the HLR is reduced, the load of the HLR is reduced, the operating efficiency of the system is improved, and the line traffic in the location registration processing can be reduced. Furthermore, in this case, since the position information is distributed and held, it is possible to secure the safety against system failure.

[Second Embodiment] FIG. 7 shows the configuration of a second embodiment of a mobile communication network system according to the present invention.

The mobile communication network system shown in FIG.
In addition to BSs 30 to 3N and GMSC 40 which are almost the same as those in FIG. 1, MPR (main processor) 50, CPRs (call processors) 60 and 61, and a line concentrator (hereinafter, referred to as “LC”) are included. These are systems that are almost the same as the system shown in FIG. 1 from the viewpoint of the hierarchy of processing functions.

The MPR 50 is a higher-level processing device, and includes a first position information holding unit (not shown in the drawing), and the CPRs 60 and 61 are coupled to the MPR 50. The first position information holding unit of the MPR 50 is an individual MS.
Information such as a CPR number for identifying the CPR that manages the position where the MS exists is stored and held as position information.

CPRs 60 and 61 are low-order processing devices, each of which is provided with a second position information holding unit, although not explicitly shown. BS30 to 3 for CPR60
3 is bound, and BS34 to 3N are bound to CPR61. The second position information holding unit of the CPRs 60 and 61 determines the CP corresponding to the position where each MS exists.
Information such as the LA number indicating the LA corresponding to the position where the MS exists is stored as position information in the second position information holding unit of R60 or 61.

The LCs 70, 71 ... 73 are one or more BS3s.
0-3N is bound to CPR60,61. Each BS 31-
Each 3n is MS bound when there is an MS in the BA. LA, which is a management unit of MS location information, is 1
The above BA is included. MPR50 or CPR60,
The CA managed by 61 includes one or more LAs.

The GMSC 40 has MPR50 and MPR5
It is coupled to CPRs 60 and 61 managed by 0, manages a mobile communication network constructed by these, and couples this mobile communication network to a fixed network.

The service area SA of the mobile communication network includes one or more CAs. The sequence of the first MS location registration in the mobile communication network system of FIG. 7 will be described with reference to FIG.

(1) The location registration request is sent from the MS to the corresponding LC, and the LC receiving the location registration request from the MS sends the location registration request to the corresponding CPR. (2) Upon receiving the location registration request, the CPR requests the MPR and the MS (via the LC) for the procedure regarding the authentication. That is, the authentication information read request is given from the CPR to the MPR, and the authentication request is given from the CPR to the MS via the LC.

(3) CPR is the authentication response from the MS and the MP.
If it is confirmed by the authentication information read response from R that the authentication results of both the MPR and the MS are normal, a location registration instruction is transmitted to the MPR, and as shown in FIG.
The LA number as position information is stored in the second position information storage unit for each MS together with the MSI for identifying the MS.

(4) The MPR that received the location registration instruction is shown in FIG.
As shown in 0, in the first position information storage unit, for each MS,
As the position information, a CPR number for identifying the CPR corresponding to the position of the MS is stored / held together with the MSI for identifying the MS.

(5) When the above procedure is completed, the CPR sends the location registration acceptance information indicating that the location registration is completed to the MS via the LC, and the location registration procedure ends. If the result of the authentication is not normal, the location registration acceptance information indicating that the location registration has failed is transmitted from the CPR to the MS, and the process ends.

Next, the sequence of MS location registration from the second time onward in the mobile communication network system of FIG. 7 will be described with reference to FIG. (1) The location registration request is sent from the MS to the corresponding LC,
The LC that has received the location registration request from the MS receives the corresponding CPR
The location registration request is sent to.

(2) Upon receipt of the location registration request, the CPR requests the MPR and the MS (via the LC) for the procedure related to the authentication. That is, the authentication information read request is given from the CPR to the MPR, and the authentication request is given from the CPR to the MS via the LC.

(3) CPR is the authentication response from the MS and the MP
If it is confirmed from the authentication information read response from R that the authentication results of both the MPR and the MS are normal, the mobile section of the MS is determined.

(4) If the moving section is within the same CPR subordinate range, the position information (LA number) of the second position information storage unit of the CPR shown in FIG. 9 is updated and held. (5) If the moving section is outside the range under the same CPR, the location registration instruction is transmitted to the MPR, and the location information (LA) in the second location information storage unit of the CPR shown in FIG.
Number) is updated and held for each of the source and destination CPRs.

(6) The MPR that received the location registration instruction is shown in FIG.
The position information (CPR number) of the first position information storage unit shown in 0 is updated and held. (7) When the above procedure is completed, the location registration acceptance information indicating that the location registration is completed is transmitted from the CPR to the MS, and the location registration procedure ends.

If the authentication result is not normal, the position registration acceptance information indicating that the position registration has failed is transmitted from the CPR to the MS, and the process ends. Further, an incoming sequence in the mobile communication network system of FIG. 7 will be described with reference to FIG.

(1) GMSC IA from fixed network
When M is received, the incoming information reading process is performed on the MPR. (2) The MPR returns the subscriber data (see FIG. 10) of the corresponding MS including the CPR number of the location information of the MS to the GMSC.

(3) MS in GMSC according to CPR number
Recognizes the CPR in which the customer is located and goes to the corresponding CPR IA
Send M. (4) In CPR, a paging request is transmitted to all BSs in the corresponding LA from the LA number of the MS location information.

(5) The BS responding from the MS sends the CPR
A general call response is sent back to. (6) The CPR sends a paging cancellation to the BS that has not received the paging response, and sends a channel allocation request and an authentication request to the BS that has received the paging response.

(7) If the authentication result is "OK", the synchronous burst 1 and the radio channel designation are transmitted to the corresponding BS, and the synchronous burst 2 is returned from the BS. (8) Send SETUP (setup) to BS, AL
When ERT (warning) is received, CPG (call progress) is sent to GMSC, and then CONN (connection)
When you receive the ANM (message response) to the GMSC,
Communication is possible by transmitting CONNACK (connection confirmation) to the BS.

(9) After the communication is completed and the authentication result is "N"
If it is G ", REL (release message) is sent from CPR to GMSC and from GMSC to fixed network, and RT (radio transmission) release from MSC to BS and MS release from BS to MS. Send, Fixed Network to GMSC, and GMSC
The RLC (release completion) is sent from each device to the MSC, whereby the incoming call process ends.

In this way, the number of accesses to the host device such as the MPR is reduced, the load on the host device is reduced, the operating efficiency of the system is improved, and the line traffic in the location registration process is reduced. can do. Furthermore, in this case, since the position information is distributed and held, it is possible to secure the safety against system failure.

[0059]

As described above, according to the present invention,
Let the HLR manage only the location information that identifies the MSC,
The MSC is made to manage the position information of the LA corresponding to one or more BSs, or the upper processing device is made to manage only the position information for identifying the lower processing device, and the lower processing device is made to manage one or more BSs. By managing the location information of the corresponding LA, the location registration request to the HLR or the upper processing unit is reduced, and the management of the BS existing under the control of the MSC or the lower processing unit in the LA unit is performed by the M unit.
As performed by the SC or lower processing device, the load on the HLR or higher processing device is reduced while maintaining substantial position information management, and the location registration processing time associated with the movement of the MS coupled to the BS is shortened. It is possible to provide a mobile communication network system and a position information management method that enable the above.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a mobile communication network system according to a first embodiment of the present invention.

FIG. 2 is a sequence diagram for explaining an initial position registration sequence in the system of FIG.

FIG. 3 is a diagram for explaining stored contents of a second position information storage unit of the MSC in the system of FIG.

FIG. 4 is a diagram for explaining the stored contents of a first position information storage unit of the HLR in the system of FIG.

5 is a sequence diagram for explaining the second and subsequent position registration sequences in the system of FIG.

FIG. 6 is a sequence diagram for explaining an incoming call sequence in the system of FIG.

FIG. 7 is a block diagram showing a configuration of a mobile communication network system according to a second embodiment of the present invention.

8 is a sequence diagram for explaining an initial position registration sequence in the system of FIG.

9 is a diagram for explaining stored contents of a second position information storage unit of CPR in the system of FIG.

10 is a diagram for explaining stored contents of a first position information storage unit of MPR in the system of FIG.

11 is a sequence diagram for explaining the second and subsequent position registration sequences in the system of FIG.

12 is a sequence diagram for explaining an incoming sequence in the system of FIG.

[Explanation of symbols]

 10 ... Home location register (HLR) 20, 21 ... Mobile communication switching center (MSC) 30-3n, 3N ... Base station (BS) 40 ... Gateway mobile communication switching center (GMSC) 50 ... Main processor (MPR) 60, 61 Call processor (CPR) 70-73 Line concentrator (LC) SA Service area CA Exchange station control area LA Location registration area BA Base station area

Claims (6)

[Claims] 1. A home location register for managing position information in a mobile communication network, one or more mobile communication switching stations coupled to the home location register, and one or more base stations coupled to the mobile communication switching center. And the home location register includes first position information holding means for holding and managing only position information for identifying the mobile communication switching station, wherein the mobile communication switching station is one or more base stations. A mobile communication network system comprising: second position information holding means for holding and managing the position information of the position registration area corresponding to. 2. An upper processing device that manages position information in a mobile communication network, one or more lower processing devices coupled to the upper processing device, and one or more base stations coupled to the lower processing device. The upper processing device includes a first position information holding unit that holds and manages only position information for identifying the lower processing device, and the lower processing device includes positions corresponding to one or more base stations. The second that holds and manages the location information of the registration area
A mobile communication network system, comprising: 3. The mobile communication network system according to claim 2, wherein the upper processing device is a main processor and the lower processing device is a call processor. 4. A mobile communication network having a home location register for managing position information, one or more mobile switching centers coupled to the home location register, and one or more base stations coupled to the mobile switching center. In the location information management method according to claim 1, the home location register is configured to manage only location information for identifying the mobile communication switching center, and the mobile communication switching station is provided with position information of a location registration area corresponding to one or more base stations. A location information management method characterized by managing the location information. 5. A position in a mobile communication network having an upper processing unit for managing position information, one or more lower processing units coupled to the upper processing unit, and one or more base stations coupled to the lower processing unit. In the information management method, the upper processing device is caused to manage only the position information for identifying the lower processing device, and the lower processing device is allowed to manage the position information of the position registration area corresponding to one or more base stations. Characteristic location information management method. 6. The position information management method according to claim 5, wherein the upper processing device is a main processor, and the lower processing device is a call processor.