KR20030015532A - Method for service information location terminal to terminal - Google Patents

Abstract

PURPOSE: A method for providing position information between terminals is provided to store cell design information in a storing space of the terminal and grasp position between the terminals through cell design information. CONSTITUTION: A terminal changes a position of a cell in an idle state(S10,S11). The terminal judges whether it is necessary to update information according to the changed position of the cell(S12). If it is necessary to update cell position information, the terminal updates the changed position of the cell(S13). The terminal transmits position information to an other terminal which belongs in a group of the same network(S15).

Description

Method for providing location information between terminals {Method for service information location terminal to terminal}

The present invention relates to a terminal, and more particularly, to a method of providing location information between terminals for storing cell design information of an operator in a terminal and providing location information between terminals.

In general, with the development of the telecommunications industry, researches on the location of a mobile terminal user have been continuously conducted.However, the current location of the terminal user can be applied to car navigation in addition to the basic functions of the communication device. This is to increase the product's competitiveness by providing additional functions.

The conventional method of determining the location of a terminal user uses a low-orbit mobile satellite floating in the air, that is, a GPS satellite. When the GPS satellite transmits standard time information to the GPS satellites at regular intervals, the GPS satellites are associated with their location information, and the GPS satellites transmit the time information and their location information on the ground at set intervals. Transmit to base station.

At this time, upon request of each terminal, each base station transmits latitude and longitude information of each base station to each terminal through a paging channel. Therefore, at one base station, the position of the base station is obtained by receiving time and position information transmitted from four GPSs and calculating the time difference of each satellite.

However, such conventional positioning is economical burden for the GPS receiver user because the GPS receiver locates by using time information and spread signals transmitted from three or more GPS satellites.

Accordingly, an object of the present invention has been made in view of the above-mentioned problems of the prior art, and stores cell design information in a conventional terminal storage space to determine the location between terminals through this information. To provide a location information providing method.

According to an aspect of the present invention for achieving the above object, cell design information is stored in a mobile terminal belonging to a user group, and location information is provided through the cell design information to provide location information between terminals. It is done by

Preferably, the location information is provided by the terminal to change the cell location, periodically perform a cell update for a predetermined time, or requests the location information of the other terminal.

In addition, performing the cell update periodically for the predetermined time depends on whether the timer operates.

1 is a diagram illustrating the provision of location information between terminals according to the present invention.

Figure 2 is a first embodiment showing the location information between terminals according to the present invention

3 is a second embodiment showing providing location information between terminals according to the present invention;

4 is a third embodiment showing providing location information between terminals according to the present invention;

* Description of the symbols for the main parts of the drawings *

10: first terminal 20: second terminal

30: network

Hereinafter, a configuration and an operation according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a view for explaining the location information between terminals according to the present invention.

Referring to FIG. 1, each base station (not shown) of a mobile communication system transmits a pilot carrier.

Initial system synchronization is performed using the pilot carrier as described above, and the illustrated second terminal 20 tracks the pilot signal through the correct time, frequency, and phase signals from the base station.

In addition, the second terminal 20 measures the strength of the received pilot signal and reports it to the competent base station of the cell in which the second terminal 20 is located.

The second terminal 20 keeps all the pilot signals after the start of the call and immediately reports to the local base station when the pilot signal of the local base station falls below the minimum value required to maintain the call, and the handoff starts from that time. do.

As described above, when the cell location of the second terminal 20 is changed, the location information of the second terminal is shared by the core network (CN) 30 via a UMTS Terrestrial Radio Access Network (UTRAN).

The CN provides a base station (not shown) with location information of a region to which the first terminal 10 to provide location information of the second terminal 20 belongs.

Here, the first terminal 10 and the second terminal 20 are terminals belonging to a user group, and the first terminal 10 and the second terminal 20 can share location information between the first terminal 10 and the second terminal 20.

When the first terminal 10 receives the cell information of the second terminal 20 belonging to the user group, the first terminal 10 provided with the information is based on the cell design information of the previously stored storage device. By analyzing, the location information of the second terminal 20 is provided to the user of the first terminal 10.

The storage device may have a built-in SIM card, and the SIM card typically includes a phone number information known to a user, an algorithm for encrypting data (voice), and a memory including a key for verifying that the SIM card is legitimate. Space.

2 is a first embodiment for providing location information between terminals according to the present invention.

Referring to FIG. 2, the terminal is in an idle state S10 and changes a cell position in this idle state (S11).

Then, it is determined whether information update is necessary according to the position of the changed cell (S12).

The determination is to determine whether the position change within a range of a cell where the terminal is located or a change of position to an adjacent cell. If the position of the terminal is within a range of a cell, other terminals which are user groups Since the changed position information is not required, information update according to the position of the cell is not necessary, and if the position change is made to another adjacent cell, the information update is required according to the position of the changed cell.

As a result of the determination (S12), when the cell position information update is not necessary, the terminal is in the idle state (S14).

However, if it is necessary to update the cell position information, the determination result (S12), the changed cell position update proceeds to perform (S13).

After performing the changed cell position update process (S13), the network which has identified the cell position information transmits the position information to other terminals belonging to the same group (S15).

The terminal delivering the updated location information is in a dormant state (S16).

3 is a second embodiment for providing location information between terminals according to the present invention.

Referring to FIG. 3, the terminal periodically performs a cell update process in an idle state S20 (S21).

The cell update progress (S21) checks whether the operation of the cell position information determination timer has ended for a predetermined time (S22).

After the determination (S22), when the operation of the timer is not finished, the terminal enters the idle state (S24), and when the operation of the timer is finished (S23).

After the process (S23), the network which grasps the cell position information transmits the position information to other terminals belonging to the same group (S25).

After the location information is transmitted (S25), the terminal is in the dormant state (S26).

4 is a third embodiment of a terminal for providing location information according to the present invention.

Referring to FIG. 4, in the idle state S30, the terminal requests the network for location information of another terminal belonging to the same group (S31).

The network receiving the location information of the other terminal requests the cell update to the corresponding other terminal (S32).

Then, the other terminal that is requested to proceed with the cell update performs a cell update process (S33).

The network transmits the cell information of the corresponding other terminal to the requesting terminal (S34).

As described above, the present invention transmits location information between terminals through cell design information previously stored in a storage device of a mobile terminal belonging to a user group, thereby determining whether the terminal can be called and efficiently communicating with the terminal. It can be effective.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the examples, but should be defined by the claims.

Claims (3)

A method for providing location information between terminals, the method comprising: storing cell design information in a mobile terminal belonging to a user group, and identifying the location through the cell design information to provide location information between terminals The method of claim 1, wherein the location information is provided when the terminal changes a cell location, periodically performs a cell update for a predetermined time, or requests location information of another terminal. 3. The method of claim 2, wherein the periodically performing cell update for a predetermined time period depends on whether a timer is operating.