KR20030074305A - Registration method and system using Assistance Visitor Location Register - Google Patents

Abstract

PURPOSE: A method and a system for registering the location of a mobile terminal, using an auxiliary VLR(Visitor Location Register) are provided to manage location information of all mobile terminals irrespective of the signal traffic increase of a BTS(Base-station Transceiver Subsystem) and an MSC(Mobile Switching Center) and the performance of the VLR. CONSTITUTION: BSCs(Base Station Controllers) transmit information about a connection state to MSCs(S200). It is judged whether a mobile terminal moves between BTSs with inter-different registration area numbers(S300). If the mobile terminal moves between the BTSs, the mobile terminal receives a new registration area number from the BTS and stores the received registration area number in an auxiliary VLR through the base station and the BSC(S400). It is judged whether the mobile terminal moves between BTSs connected to MSCs(S500). If the mobile terminal moves between the BTSs, the mobile terminal transmits a location registration message of the mobile terminal to the MSC. The location registration message is stored in a VLR, and is transmitted to an HLR(S600).

Description

Registration method and system using Assistance Visitor Location Register}

The present invention relates to a location registration method and system of a mobile terminal using an auxiliary visitor location register (AVLR) to improve the performance of location registration using a visitor location register (AVLR) to enable a large number of location registration. .

In the detailed description of the present invention, the conventional components of the mobile communication system refer to a mobile communication terminology site on a telecommunication line.

In general, since the mobile terminal moves its location, the location tracking and registration is required. Currently, the mobile terminal's location registration follows the IS-41 standard.

In order to determine the location of the mobile station in base-station transceiver subsystem (BTS) units, the mobile station registers a location whenever the mobile station enters another base station, and the base station controller (BSC) also continues paging. shall. However, this method is costly in current mobile phone system performance. The method used to solve this cost problem is a method of notifying the location in units of a registration area (LA). The registration area refers to a bundle of several base stations. When a mobile terminal moves a base station, it does not notify the base station of its own location, but only informs the base station of the location information when it leaves the group. Therefore, the database storing the location information of the mobile terminal has a registration area ID instead of the base station ID for indicating the location of each mobile terminal.

The location information resulting from the change of the registration area of the mobile terminal is registered and managed in the Visitor Location Register (VLR) of the Mobile Switching Center (MSC). When the mobile terminal moves between mobile communication exchanges, location information is registered in the Home Location Register (HLR).

If information on the location of the mobile terminal is desired in units of base stations, the location information can be determined by a method of paging all base stations or a method of matching a registration area with a base station unit.

Positioning by base station paging has a problem in that system traffic is increased to simultaneously obtain the location information of all subscribers by transmitting the number of mobile terminals to all base stations and requesting location information to obtain location information.

The location registration method of matching the registration area with the base station unit has a disadvantage in that signal traffic of the base station and the visitor location register (VLR) increases, and the processing speed decreases when the performance of the visitor location register (VLR) is not excellent. There is this.

Accordingly, an object of the present invention is to provide a location registration method of a mobile terminal using an auxiliary visitor location register in order to be able to manage location information of all mobile terminals irrespective of signal traffic increase and visitor location register performance of a base station and a mobile communication exchange. And to provide a system.

1 is a configuration diagram of a location registration system of a mobile terminal using an auxiliary visitor location register according to an embodiment of the present invention;

2 is a configuration diagram of a location registration system of a mobile terminal using an auxiliary visitor location register according to another embodiment of the present invention;

3 is a flowchart illustrating an operation of a location registration system of a mobile terminal using an auxiliary visitor location register according to another embodiment of the present invention.

4 is a block diagram showing the configuration of the auxiliary visitor location register according to another embodiment of the present invention.

<Description of main parts of drawing>

10: base station 20: base station controller

30: mobile communication exchange 40: visitor location register

50: home location register 60: auxiliary visitor location register

62: location registration message handler 64: location registration database

66: location based service system interface 70: location based service system

According to an aspect of the present invention, there is provided a mobile telephone system comprising a base station controller connected in parallel with a plurality of base stations, a mobile communication switch connected to the base station controller, and a visitor location register provided in the mobile communication exchange. It is achieved by a location registration system of a mobile terminal using an auxiliary visitor location register which is connected and includes an auxiliary visitor location register for storing and transmitting the location information of the mobile terminal by the location registration area.

Here, the location registration area is a registration area based on location information that grasps the location of the mobile terminal in units of base stations.

In addition, the object is, according to the present invention, a base station controller connected in parallel with a plurality of base stations, a mobile communication switch connected to the base station controller, a visitor location register provided in the mobile communication exchange, an auxiliary visitor location register connected to the base station controller A location registration method of a mobile terminal using a configured mobile telephone system, wherein the location registration area is the same as the base station area, the registration area number is differently assigned to the adjacent base station area, and the same registration area number is assigned to the base station area not in proximity. A first step; A second step of transmitting, by the mobile terminal, a location registration message to the auxiliary visitor location register when the location of the mobile terminal is changed; Storing the location registration message in the auxiliary visitor location register and calling the location information of the mobile terminal to determine the location of the mobile terminal by a location registration method of the mobile terminal using the auxiliary visitor location register; Is achieved.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention.

1 is a block diagram of a location registration system of a mobile terminal using an auxiliary visitor location register according to an embodiment of the present invention.

The base station 10 connects the mobile communication switch 20 and the mobile terminal period of the mobile communication network and performs functions such as wireless connection, synchronization maintenance, call channel allocation or release with the mobile terminal 25.

The base station controller 20 (BSC) is located between the mobile communication exchange 30 (MSC) and the base station 10 to manage the operation of the base station 10, the management of the service state of hardware and software in the base station 10, and call traffic. It allocates and configures resources for resources, collects information about the operation of the base station 10, monitors the operation of the base station 10, and monitors the underlying devices related to the detected failure. It also provides a handoff function between the base stations 10 and between the base station controller 20 and the soft handoff function between the mobile communication exchange 30.

The mobile communication switch 30 performs a task of connecting a general public telephone network and a mobile communication network and is located at the center of the mobile communication network to match the base station controller 20, the base station 10, the home location register 50, and the HLR. Performs the function of configuring the voice and non-voice call path and the mobile communication switch 30 operating and maintenance functions.

The visitor location register 40 (VLR) is a location register used by the mobile communication switch 30 to retrieve information for processing a call from the mobile terminal. The mobile communication switch of the location where the mobile terminal is present in the mobile communication is located. A subscriber information database function registered and managed at 30 is performed.

The home location register (50) is a database used in a wireless communication exchange and maintains information on subscribers such as terminal information, service subscription information, and location information, and has a large real-time database for information on subscribers required by the network. Processing and organic coupling to ensure subscriber mobility.

The secondary visitor location register 60 is connected to the internal interface HDLC of the base station controller 20. The auxiliary visitor location register 60 stores only the location information of the mobile terminal and transmits it to another system.

The location information stored in the auxiliary visitor location register 60 is mobile terminal location information of the base station 10.

2 is a configuration diagram of a location registration system of a mobile terminal using an auxiliary visitor location register according to another embodiment of the present invention, and FIG. 3 is a flowchart illustrating the operation of the system.

The operation of the location registration system of the mobile terminal using the auxiliary visitor location register will be described with reference to FIGS. 2 and 3.

The location registration area indicating the location of the mobile terminal is the same area as the base station 10, and the registration area number is recycled to the base station 10 which is not in proximity.

That is, all the base stations 10 have different registration area numbers from the neighbor base stations 10.

If all of the base stations 10 have different registration area numbers, the amount of data exchange between the mobile terminal and the mobile communication exchanges 31 and 32 increases, resulting in a low transmission rate. Choose how to do it.

The mobile station and the base station 10 exchange information about a connection state through a pilot channel and an access channel, and the base station controllers 21 and 22 transmit this information to the mobile communication exchanges 31 and 32. )

The mobile terminal determines whether to move between the base stations 10a and 10b having different registration area numbers (S300).

At this time, if the mobile terminal moves between the base stations 10a and 10b, the mobile terminal receives a new registration area number from the base station 10b and receives the registration area number through the base station 10b and the base station controller 21. Stored in the register 60 (S400).

Next, the mobile terminal determines whether to move between base stations 10c and 10d connected to separate mobile communication exchanges 31 and 32 (S500).

At this time, if the mobile terminal moves between the base stations (10c, 10d) connected to the separate mobile communication exchange (31, 32), the mobile terminal transmits the location registration message of the mobile terminal to the mobile communication exchange (32).

This location registration message is stored in the visitor location register 42 and is also sent to the home location register 50.

The auxiliary visitor location register 60 stores location registration information when the mobile terminal moves between adjacent base stations 10, thereby establishing a location information database in units of the base station 10 of the mobile terminal.

The auxiliary visitor location register 60 may inquire in real time the detailed location of the base station 10 of the mobile terminal.

4 is a block diagram showing the configuration of the auxiliary visitor location register according to an embodiment of the present invention, and the operation of the auxiliary visitor location register will be described with reference to FIG. 4.

The location registration message processor 62 receives the location registration message of the mobile terminal input from the base station controller 21, registers it in the location registration database 64, and sends a location registration response back to the mobile terminal.

Accordingly, the location registration database 64 stores location information of the base station 10 of the mobile terminal and information on a specific area designated as an automatic transmission area.

The location-based service system interface 66 retrieves data stored in the location registration database 64 according to a request for information on mobile terminal details of a specific region inputted from the location-based service system 70, and retrieves the data from the location-based service system 70. Transmission to the service system 70.

If the specific area is designated as the automatic transmission area, when the mobile terminal enters the specific area, the location information of the mobile terminal is automatically transmitted to the location based service system 70 by the location based service system interface 66. do.

Although the present invention has been described with reference to the drawings, the present invention is not limited thereto, and the invention which can be easily modified by those skilled in the art to which the present invention pertains also belongs to the technical scope of the present invention.

As described above, according to the present invention, the visitor location register of the mobile communication exchange 30 by storing only the location information of the mobile terminal in the auxiliary visitor location register 60 among the information of the mobile terminal stored in the visitor location register 40. The location of the mobile terminal can be determined in real time by the base station 10 without the load of 40. Real-time location of the base station unit detects the entry and exit of a specific area of a mobile terminal.

In addition, by using the location information of the mobile terminal stored in the auxiliary visitor location register 40 to provide advertising, games, emergency services.

Claims (3)

A mobile telephone system comprising a base station controller connected in parallel with a plurality of base stations, a mobile communication switch connected to the base station controller, and a visitor location register provided in the mobile communication exchange, And a secondary visitor location register connected to the base station controller and including an auxiliary visitor location register for storing and transmitting location information of the mobile station by a location registration area. The method of claim 1, The location registration area, Location registration system of a mobile terminal using an auxiliary visitor location register, characterized in that the registration area by the location information grasping the location of the mobile terminal in the base station unit. Location of a mobile terminal using a mobile telephone system consisting of a base station controller connected in parallel with a plurality of base stations, a mobile communication switch connected to the base station controller, a visitor location register provided in the mobile communication exchange, and an auxiliary visitor location register connected to the base station controller. As a registration method, A first step of assigning a location registration area as the base station area, assigning a registration area number differently to an adjacent base station area, and assigning the same registration area number to a base station area not in proximity; A second step of transmitting, by the mobile terminal, a location registration message to the auxiliary visitor location register when the location of the mobile terminal is changed; Storing the location registration message in the auxiliary visitor location register and calling the location information of the mobile terminal to determine the location of the mobile terminal.