KR20050048735A - Method for transmiting/receiving position concerned information in busy state in mobile communication terminal - Google Patents

Abstract

The present invention relates to a method for receiving a location information of a counterpart or transmitting its location information to a counterpart in a mobile communication terminal having a location calculation function. When the user's location information is transmitted, when the shortcut key for transmitting the user's location is pressed, the current location value of the user is transmitted to the switching center and the location information corresponding to the location value is searched, and when the search result is transmitted to the other party, the other party's terminal Your location information is displayed in the. When receiving the other party's location information, if the other party's location request key is pressed, the other party first asks the other party whether the location information is disclosed. If the other party accepts the location information, the current location value of the other party is transmitted to the exchange. When the location information corresponding to the location value is searched and the search result is transmitted to the user, the location information of the other party is displayed on the user's terminal. If the other party does not accept the disclosure, only the message indicating that the other party does not want to disclose the information is displayed on the screen of the terminal.

Description

Method for transmitting / receiving position concerned information in busy state in mobile communication terminal}

The present invention relates to a method for receiving a location information of a counterpart or transmitting its location information to a counterpart in a mobile communication terminal having a location calculation function.

Modern mobile communication terminals provide various additional functions in addition to the simple voice call function. In particular, recently, a function of calculating the location of the terminal has been added to increase user convenience. Conventional techniques for calculating such a position include a global positioning system (GPS) method and a base station-based method. The GPS method is a GPS receiver that measures accurate time and distance from three or more satellites. It is to calculate the current position by triangulation method of three different distances, and the base station-based method determines the position of the terminal by measuring the relative difference of the radio wave arrival time from two of them to the terminal while using three base stations I say that.

However, even with this technique, the conventional tendency was to simply locate the location of a specific terminal through a web site, and it is true that a method of real-time recognizing it in the terminal itself was rare. In particular, even if the terminal itself is equipped with a location calculation function, when trying to determine the location of the caller during a phone call, the function becomes useless, resulting in a decrease in the overall performance of the terminal.

On the other hand, Patent Publication No. 2001-0081627 as a prior art for improving the problems of the terminal utilization as described above.

The present invention relates to a method for transmitting and receiving data during a voice call in a mobile communication terminal, and introduces a mechanism inside the terminal for data transmission during a call, but has no specific designation for data to be transmitted and received. In this case, there is no mention of a process of calculating location information and a network system or an implementation method for linking the same with a data transmission / reception method, and a solution thereof is desired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and an object of the present invention is to transmit a user's location information to a counterpart by displaying a character string at a counterpart terminal by pressing a specific shortcut key even during a call in a mobile communication terminal having a location calculation function.

Another object of the present invention is to similarly request that the other party to transmit his location information by pressing a specific shortcut key during the call, and if the other party accepts the object to receive the location information of the other party to display as a string on their terminal It is done.

In order to achieve the above object, the present invention provides a first step of determining whether a shortcut key for transmitting a location of a user is pressed when the user transmits his / her location information to the other party, and calculates a current location value of the mobile terminal of the user when the shortcut key is pressed. A second step of transmitting the location information corresponding to the received position value by the exchange station, and transmitting the result to the other party's mobile terminal; and transmitting the received location information to the screen of the mobile communication terminal. It has a fourth step to display on.

In addition, when requesting the other party to transmit the location information, the first step of determining whether the other party's location transmission request shortcut key is pressed in the mobile communication terminal, and when the shortcut key is pressed, the other party receives a message asking whether to release the location information. A second step of transmitting to the mobile communication terminal, a third step of calculating the current location value of the other mobile communication terminal and transmitting it to the switching station when the other party accepts the release of the location information, and corresponding to the received position value at the switching station. And a fourth step of retrieving the location information and transmitting the result to the mobile communication terminal and a fifth step of displaying the received location information on the screen of the mobile communication terminal.

The current position of the mobile communication terminal may be a mobile communication terminal equipped with a Global Positioning System (hereinafter, referred to as a 'GPS') that receives a GPS satellite signal and directly calculates a current position value. The mobile communication terminal equipped with a GPS satellite may receive a GPS satellite signal, transmit the information to the reference station, calculate a position value at the reference station, and transmit the information to the mobile communication terminal. In addition, the three base stations may be a signal of the mobile communication terminal to calculate the position value.

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

FIG. 1A is a network diagram illustrating a process of calculating a position value of a mobile communication terminal using a global positioning system (GPS) to implement a method of changing a call function according to the present invention. It is shown. This is a positioning method that knows the distance between the mobile communication terminal and the GPS satellite by measuring a time of arrival (TOA) between the GPS satellite and the mobile communication terminal.

GPS can be divided into three components: space segment, control segment, and user segment. In FIG. 1A the universe corresponds to GPS satellites 110a, 111a, 112a and 113a, the control to reference station 120a and the user to sender 100a, respectively.

The space portion is composed of GPS satellites 110a, 111a, 112a, and 113a which continuously transmit navigation messages required for position calculation to a user through a carrier wave. The carrier wave is accurately adjusted to two frequencies L1 (1575.42MHz) and L2 (1227.6MHz) in the L band and transmitted to the user 100a. Each of the GPS satellites 110a, 111a, 112a, and 113a is arranged in four circular orbits each with an inclination angle of 55 °, which is the user's three-dimensional position and receiver. It is specially designed so that at least four satellites are always visible across the globe to calculate the clock error. Satellite data transmitted from each GPS satellite (110a, 111a, 112a, 113a) is transmitted to the user (100a) in a code division multiple access (CDMA) method, so the GPS receiver receives navigation data corresponding to each satellite. You can receive clearly.

The control part tracks and monitors the GPS satellites through various control stations 120a distributed throughout the country, and estimates the position of the satellites as accurately as possible and transmits various correction information to the satellites. This correction information is also continuously transmitted to the user as part of the navigation data.

The user portion consists of a GPS receiver 100a that receives a GPS satellite signal and calculates a location. The GPS receiver uses the navigation data received from the satellite to calculate the user's location and speed. The GPS antenna connected to the receiver tracks the GPS satellite signal with its own built-in algorithm, and if only one satellite signal is tracked, information about the relative position of the other satellites can be obtained from the satellite in a short time. You can track the signals.

FIG. 1B shows a network diagram for implementing a method of changing a called function according to the present inventor. In particular, FIG. 1B shows a case where three base stations 110b, 111b, and 112b are used to calculate a caller position value. This is a positioning method that determines the position by measuring the relative difference between the radio wave arrival time from two base stations, also known as TDOA (Time Difference of Arrival) method.

TDOA is a principle that the terminal is located on a hyperbolic curve where the distance is constant at both base stations, that is, after measuring the propagation time difference proportional to the difference in distance from the two base stations to the terminal. At this time, each base station should be synchronized, and time synchronization between base stations is performed by using a satellite clock. Through this, two hyperbolas are obtained from three base stations and the intersection of the two curves becomes the position of the terminal.

FIG. 2A is a network diagram for explaining the operation of each network element when the user presses a shortcut key for transmitting his / her location information in the method of transmitting / receiving location information during a call.

The mobile communication terminal 201a of the user is provided with a shortcut key for transmitting his or her location information, which may be provided with a separate key or may use an existing character key. For example, you can dedicate the # key to this, just like pressing the * key for a certain time to switch to the etiquette mode, or at the bottom of the terminal screen during a call, like 'Transfer my location' and then at the bottom You can also assign a located key to it.

When the current position is calculated, the position value is calculated through the GPS system or the base station system and stored in the mobile communication terminal 201a of the mobile station. Thus, the position value is transmitted to the switching center 205a through the base station 203a.

The location information DB 207a of the switching center includes the location string information corresponding to the received location value, and if necessary, retrieves the location information through an appropriate query operation and returns the location value to an unknown location value. If you try to search it will send an error message such as 'Unknown location'.

The corresponding location information retrieved through the location information DB 207a is also transmitted to the counterpart mobile communication terminal 211a through the base station 209a.

The time series interaction process between the network components 201a to 211a will be described in detail with reference to FIG. 4A and will be omitted herein.

FIG. 2B is a network diagram for explaining the operation of each network element when the user presses a shortcut key for requesting location information of the other party during the call location information transmission / reception method.

As described above with reference to FIG. 2A, the mobile terminal 201b is provided with a shortcut key for requesting the other party's location information. However, it is preferable to make a pair of menu items such as 'send my location' on the bottom of the screen of the terminal during a call and display the other party's location on the other side, and similarly the key located at the bottom of the terminal. Will be efficient.

The operation of the other network elements is the same as that of FIG. 2A, except that the time series interaction process is described in detail with reference to FIG. 4B and will be omitted herein.

3 is a functional block diagram of a mobile communication terminal for implementing a method of transmitting and receiving location information during a call. This is a block diagram of a terminal for calculating a location using GPS in particular, and in addition to the functional components of a general mobile communication terminal, a GPS receiver 320 is additionally included.

The controller 308 should be provided with a function of calculating the current position from the data demodulated by the GPS receiver 320 and a function of determining whether a shortcut key for transmitting the user's location information or a shortcut key for requesting the other party's location information is pressed.

Of course, the GPS receiver 320 of the terminal simply has a function of receiving a GPS signal and transmitting it to an external GPS positioning system, and the position information calculation from the actual GPS signal may be performed in the GPS positioning system. At this time, if the terminal to calculate the location using the base station, the GPS receiver 320 is not required separately, but the control unit 308 requests the base station to transmit the location data, and receives the location data from the base station from there It must have a function to extract the position value.

The memory unit 306 stores the calculated current position value, and the display unit 302 displays the position string received on the liquid crystal of the terminal, or, if the other party does not accept the disclosure of the information, to display as a character string that is the subject of information privacy. do. In addition, when an incorrectly calculated position value is transmitted, a character string such as an unknown position or an incorrectly calculated position from the switching center is displayed.

A terminal having such a structure to realize the functions of the present invention includes a cordless phone, a cellular phone, a PCS phone, a mobile phone such as an IMT2000, a personal digital assistant, a personal computer (PC), a laptop PC (lap). -top PC), palm-top PC (HPC) such as a handheld PC (GPS terminal), etc.

FIG. 4A is a flowchart illustrating a process when the user presses a shortcut key for transmitting his / her location information, among other methods of transmitting and receiving location information during a call.

When the user presses a shortcut key for transmitting his / her location information (S401a), the current position value of the terminal is calculated according to the GPS method or the base station method, and the position value is transmitted to the switching center through the base station (S403a). The exchange station retrieves the location information corresponding to the location value from the location information DB (S405a), and transmits the result to the counterpart terminal through the base station (S407a), and the counterpart terminal receiving the received information indicates its own location on the LCD screen. Output a string (S409a). At this time, in step S403a, an IS-801 session may be used to transmit the location value.

4B is a flowchart illustrating a process when a shortcut key for requesting counterpart location information is pressed in the method of transmitting and receiving location information during a call.

When the user presses a shortcut key for requesting the other party's location information (S401b), a message for inquiring whether to disclose the location information to the other party terminal through the switching center is transmitted (S403b). When the other party accepts the information disclosure, the current position value of the terminal is similarly calculated according to the GPS method or the base station method, and the position value is transmitted to the switching center through the base station (S407b). The exchange station retrieves the location information corresponding to the location value from the location information DB (S409b), and transmits the result to the counterpart terminal through the base station (S411b). The counterpart terminal receiving the received information indicates its location on the LCD screen. The string is output (S413b).

If the other party does not accept the information disclosure, the exchange transmits a message to the person that the other party does not want the information disclosure (S415b), and his terminal receives the information and outputs the message content on the LCD screen (S417b).

5A to 5B are exemplary embodiments of the terminal screen of the person and the other party when the shortcut key for transmitting the user's location is pressed.

If the user selects the 'Send my location' menu at the bottom of the LCD screen in a call state (501a), the process of S403a of FIG. 4A is performed and 'my location information is transmitted to the other party' on the terminal screen. A message indicating the progress of the process as shown is displayed (503a). On the other hand, the counterpart terminal having received its location information from the switching center displays a character string indicating the corresponding location on the LCD screen (503b).

6A to 6B illustrate examples of terminal screens of the user and the counterpart when the shortcut key for the counterpart location request is pressed as an embodiment of the present invention.

If the user selects the 'Request for counterpart location' menu at the bottom of the LCD screen during a call (601a), the process of 403b of FIG. 4B is performed, and the terminal screen performs a process such as 'Requesting location information for the counterpart'. An informing message is displayed (603a). At this time, the other party's terminal (that is, the person) is requesting location information. Do you want to accept? 'And the like, and wait for the selection (603b).

If the other party accepts the request, the process of FIG. 4 is performed, and a character string indicating the location of the other party is displayed on the LCD screen of the user. If the other party does not accept the request, the process of FIG. 4 is performed, and only the message 'the other party does not want information disclosure' is output on the LCD screen of the user's terminal.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by those equivalent to the scope of the claims.

As described above, according to the present invention, a mobile communication terminal having a position calculation function transmits its own location information to the other party by pressing a specific shortcut key, or receives the other party's location information as a character string on the screen of the mobile communication terminal. A method is provided to confirm. This overcomes the limitation that the terminal's position calculation function was only available on the web page, and can be used as an opportunity to increase the utilization of the terminal itself. Because it can determine the location of the existing caller number can be obtained more specific information about the other party. In addition, when the person requests the other party to transmit the location information, the user may further have a process of selecting whether to accept the information or not, thereby forcing the other party to disclose personal privacy. To prevent inadvertent damage in advance.

1A to 1B are network diagrams for explaining a method of calculating a current position of a mobile communication terminal.

2A to 2B are network diagrams for explaining a method of transmitting and receiving location information during a call.

3 is a functional block diagram of a mobile communication terminal for implementing a method of transmitting and receiving location information during a call.

4A to 4B are flowcharts illustrating a method of transmitting and receiving location information during a call according to the present invention.

5A to 5B are exemplary embodiments of the terminal screen when a shortcut key for transmitting a person's location is pressed.

6A to 6B are exemplary embodiments of the terminal screen when a shortcut key for requesting a counterpart's location transmission is pressed.

Claims (6)

Step 1 to determine whether the shortcut key for sending a location of the user is pressed, A second step of calculating a current position value of a mobile communication terminal of the mobile terminal and transmitting it to the switching center when the shortcut key is pressed; A third step of retrieving location information corresponding to the received location value from an exchange and transmitting the result to a counterpart mobile communication terminal; A fourth step of displaying the received location information on the screen of the mobile communication terminal; Method for transmitting and receiving location information during a call in a mobile communication terminal comprising a. A first step of determining whether a shortcut key for requesting transmission of the other party's location is pressed in the mobile communication terminal; A second step of transmitting a message for inquiring whether to disclose location information to the counterpart mobile communication terminal when the shortcut key is pressed; A third step of calculating the current location value of the other party's mobile terminal and transmitting it to the switching center if the other party accepts the release of the location information; A fourth step of retrieving location information corresponding to the received location value from an exchange and transmitting the result to a mobile communication terminal thereof; A fifth step of displaying the received location information on the screen of the mobile communication terminal; Method for transmitting and receiving location information during a call in a mobile communication terminal comprising a. The method of claim 2, In the third step, if the other party does not accept the disclosure of location information, Transmitting a message indicating that the other party does not want to disclose the location information to his mobile terminal, and the mobile terminal receiving the message displays the contents of the message on the screen; Method for transmitting and receiving location information during a call in a mobile communication terminal further comprising. The method according to claim 1 or 2, The current position of the mobile communication terminal, A method of transmitting and receiving position information during a call in a mobile communication terminal, characterized in that the mobile communication terminal equipped with GPS receives a signal of a GPS satellite and calculates a current position value directly. The method according to claim 1 or 2, The current position of the mobile communication terminal, A mobile communication terminal equipped with a GPS receives a GPS satellite signal, transmits the information to a reference station, calculates a position value at the reference station, and sends the information back to the mobile communication terminal. How to send and receive information. The method according to claim 1 or 2, The current position of the mobile communication terminal, 3. A method of transmitting and receiving position information during a call in a mobile communication terminal, characterized in that three base stations capture a signal of the mobile communication terminal and calculate a position value.