KR20030034565A - Method for notifing a subscriber location in mobile network - Google Patents

Abstract

PURPOSE: A location information informing service method for a mobile network is provided to grasp designation subscribers who exist in a cell region same to a service subscriber and display the grasped designation subscribers on a terminal of the service subscriber. CONSTITUTION: If information about an MS1(Mobile Station 1) is received, an MSC(Mobile Switching Center) retrieves whether information about the MS1 exists from a VLR(Visitor Location Register)(S2). If the MS1 exists in a local station of the MSC, the MSC retrieves a database in the VLR and judges whether a service subscriber of the MS1 applies for a location information informing service(S4). If the service subscriber of the MS1 applies for the location information informing service, the MSC reads IDs of an MS2 and an MS3 of designation subscribers designated by the service subscriber of the MS1 from the VLR, and detects the MS2 located in a cell region(C1) in which the MS1 is located(S7). If the MS2 of the designation subscriber is located in the cell region(C1), the MSC provides the ID of the MS2 and information for informing that the MS2 is located in the cell region(C1) to the MS1(S8). The MSC provides a short message to the MS3 of the designation subscriber for informing that the MS1 of the service subscriber exists in the same cell region(C1)(S9).

Description

How to service location information notification in mobile network {METHOD FOR NOTIFING A SUBSCRIBER LOCATION IN MOBILE NETWORK}

The present invention relates to a mobile network, and more particularly, to a location information notification service method of a mobile network for displaying a designated terminal existing in a changed cell area when a cell area in which a terminal is located is changed.

With the development of communication technology, mobile communication technology is being developed and used to enable communication even while the terminal is moving. Mobile communication technology is a technology that enables a call by transmitting and receiving electromagnetic waves wirelessly, and is called a cell in terms of limiting the distance generated during the wireless transmission and reception of radio waves and securing a channel for simultaneous call of many subscribers. The division of service areas is adopted. A base station exists in the cell area, and the base station mediates radio communications with the switch located in the cell area.

On the other hand, mobile communication subscribers are generally mobile and cannot know the current location of the subscriber to be called at all. Therefore, there is a problem that it is not possible to know at all whether there is a subscriber (a friend who has a friend, family member, etc.) who can help in a nearby area when an emergency occurs and needs help. This problem allows subscribers (hereinafter referred to as service subscribers) to designate subscribers with whom they are familiar (hereinafter referred to as designated subscribers) and to designate subscribers within the cell area where the service subscriber is located. It may be solved by displaying on the terminal. However, the mobile network to date does not present this technical idea at all.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object of the present invention is to provide a method for notifying location information of a mobile network for identifying designated subscribers existing in the same cell area as a service subscriber and displaying the identified designated subscribers to the terminal of the service subscriber. To provide.

In order to achieve the above object, the present invention provides a location information notification service method of a mobile network, comprising: detecting whether a cell area of a predetermined mobile terminal is changed; If the cell area of the mobile terminal is changed, detecting whether the mobile terminal is a service request terminal applying for a location information notification service; If the mobile terminal is a service requesting terminal applying for the location information notification service, detecting a terminal located in the same cell area as the service requesting terminal among the predetermined mobile terminals corresponding to the service requesting terminal; And providing information on the detected terminals to the service request terminal.

1 is a schematic block diagram of a mobile network for performing a method for providing location information notification of a mobile network according to the present invention;

2 is a diagram illustrating a concept of a database in a visited location register required to perform a method for providing a location information notification service of a mobile network according to the present invention;

3 is a diagram illustrating an example of a case where a terminal changes a cell position in a location information notification service method of a mobile network according to the present invention;

4 is a flowchart illustrating a method for providing location information notification in a mobile network according to the present invention.

※ Explanation of code about main part of drawing ※

MS1-MSn: terminal BS1-BSn: base station

30: mobile communication switch 40: home location register

50: Landing Location Register

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 shows an example of a mobile network. As shown in FIG. 1, base stations BS1 -BSn are located in each cell C1 -Cn, and base stations BS1 -BSn are located in a corresponding cell C1 -Cn. But not shown in FIG. 3 to be described later). Base Station (BS1-BSn) mediates between MS1-MSn and Mobile Switch Center (MSC) 30 and consists of BTS (Base Tranceiver System) and BSC (Base Station Controller). do. Here, the BTS is composed of one or more transceivers located in predetermined places to perform wireless communication with the terminals MS1-MSn.

The BSC is a device for controlling the BTSs and exchanges messages between the BTSs and the MSCs 30. A plurality of such base stations BS1- (BSn) may be connected in one MSC 30.

The MSC 30 refers to an automatic system that interfaces user communication from a wireless network to a wired or wireless network.

The home location register (HLR) 40 refers to a functional device that stores subscriber information (eg, user phone number, current location, etc.) and manages mobile subscribers. The HLR 40 may be located integrated with the MSC 30 or may be located independently of the MSC 30, and one HLR 40 may provide services to a plurality of MSCs 30.

The Visited Location Register (VLR) 50 is connected to one or more MSCs 30, and when the subscriber is located in an area (local station) covered by the VLR 50, the terminal (MS1-MSn) A functional device that stores subscriber information obtained from the HLR 40. When the terminal MS1-MSn enters a new service area encompassed by the MSC 30, the MSC 30 requests and reads information on the terminal MS1-MSn from the HLR 40 to the associated VLR. Save to 50.

The VLR 50 has a database structure as shown in FIG. 2, for example, and includes an information area for storing a subscriber ID (substantially, an ID of a terminal) located in a local station, and a cell area for a subscriber. A base station (BTS1-BTSn) name area, an area indicating whether to subscribe to the location information notification service according to the present invention, and an area storing a terminal ID of a designated subscriber designated by the subscriber when the subscriber subscribes to the location information notification service area of the present invention. And other information areas (to indicate whether or not another service is subscribed to). In the drawings, for convenience of description, IDs of the terminals MS1-MSn are illustrated and described with reference numerals MS1-MSn of the terminals.

3 illustrates an example in which a terminal moves in a mobile network having the above-described configuration, and an operation flowchart of the MSC 30 is illustrated in FIG. 4. First, as shown in FIG. 3, when an arbitrary terminal (for example, MS1) moves from the cell region C2 to the cell region C1, the base station BS1 in charge of the cell region C1 is the terminal MS1. Receives information from the terminal, and detects that the terminal MS1 is located in the cell region C1, and provides the MSC 30 that the terminal MS1 is located in the cell region C1.

When the information on the terminal MS1 is provided in step S1, the MSC 30 searches for whether there is information on the terminal MS1 from the VLR 50 (S2), and the terminal MS1 in the VLS 40. If there is no information on the information on the terminal MS1 from the HLR 40 is read and stored in the VLR (50) (S3). Therefore, when the terminal MS1 exists in the local station of the MSC 30, the information on the terminal MS1 is always stored in the VLR 50. After performing steps S2 and S3, the MSC 30 searches the database in the VLR 50 to determine whether the terminal MS1 has applied for the location information notification service of the present invention (S4), and the location information notification service. If not applied to proceed to step (S5) to perform a general processing. However, when the terminal MS1 has applied for the location information notification service of the present invention, the process proceeds to step S6 where the terminal ID of the designated subscriber designated by the user of the terminal MS1 (as shown in the embodiment of FIG. 2). The MS2 and MS3 are read from the VLR 50, and the terminal MS2 located in the cell C1, that is, in the cell region in which the terminal MS1 is located, is detected among the read terminals MS2 and MS3 (S7). ).

As a result of the detection in step S7, if the designated subscriber (subscriber MS2 in the figure) is located in the cell C1 area, the MSC 30 determines the terminal MS2 ID of the designated subscriber, i.e., the telephone number and the terminal MS2. Information indicating that the MS1 is in the same cell region is provided as a short message to the terminal MS1 (S8). Accordingly, the service subscriber of the terminal MS1 can easily know that the designated subscriber using the terminal MS2 is in the same cell C1 area as the own.

On the other hand, in the case of performing only the above-described step S8, only the subscriber of the terminal MS1 knows that the terminal MS2 is in the same cell C1 area, and the designated subscriber of the terminal MS2 cannot know this. . In order to prevent this, the following step S9 may be further performed. That is, the MSC 30 proceeds to step S9 to provide a short message indicating that the terminal MS1 of the service subscriber is in the same cell C1 area to the terminal MS3 of the designated subscriber. By performing this step S9, the subscribers using the terminals MS1 and MS2 can know that they are in the same cell area.

As described above, in the present invention, when the cell area in which the location information notification service subscriber of the present invention is located is changed, the service subscriber provides information on the designated subscribers located in the same cell area to the service subscriber. There is an effect that you can easily hear them.

Claims (2)

In the location information notification service method of a mobile network, Detecting whether a cell area of a predetermined mobile terminal has changed; If the cell area of the mobile terminal is changed, detecting whether the mobile terminal is a service request terminal applying for a location information notification service; If the mobile terminal is a service requesting terminal applying for the location information notification service, detecting a terminal located in the same cell area as the service requesting terminal among the predetermined mobile terminals corresponding to the service requesting terminal; And providing information on the detected terminals to the service requesting terminal. The method of claim 1, And transmitting the information of the service request terminal to the detected terminals.