KR100317253B1 - Method for restrict call of handy phone - Google Patents

Abstract

The present invention relates to a terminal, and more particularly, to a method for limiting transmission of a terminal so that the terminal is suitable for operating in a limiting mode when a terminal is lost. Such a call limiting method of a terminal according to the present invention includes storing a phone number selected by a user in a terminal, and receiving a call limit command which is an order message transmitted from a base station through a paging channel by the terminal storing the phone number. And the terminal receives the call restriction command is made only to the step of calling the stored phone number, thereby preventing the illegal use of the terminal learner has an effect that can easily find the terminal.

Description

Method for restricting call of handy device {Method for restrict call of handy phone}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CDMA mobile communication terminal, and more particularly, to a method for limiting transmission of a terminal so that the terminal is suitable for operating in a transmission restriction mode when the terminal is lost.

1 is a block diagram showing the configuration of a general mobile communication system.

Referring to FIG. 1, a mobile communication system includes a local switching network 100 such as a public switched telephone network (PSTN) or a public switched data network (PSDN), a private switch 110 of each communication provider, and a communication history of a subscriber of a communication service. Subscriber management system 120 for managing the back, base station 130 and the antenna 140 and the terminal 150 is composed of.

As described above, in the communication method of the configured terminal 150, when the base station 130 transmits communication area information such as a communication channel available in the corresponding zone (Zone) to the terminal 150 at a predetermined period, the terminal 150 indicates When the area information is registered by comparing the communication area information with data such as a communication channel stored in the memory of the terminal 150 and transmits a confirmation signal to the base station 130.

When the user 'turns on' the power of the terminal 150, the base station 130 provides registration information for registering the terminal 150 such as a signal indicating that the user is 'power-on' and his ID. ).

Subsequently, the base station 130 receives the signal transmitted from the terminal 150 and transmits an acknowledgment message to the terminal 150. From this time, the terminal 150 waits for a call until the user starts a call. ) State.

On the other hand, when a user presses the telephone number of the terminal 150 and presses the SEND button to make a call, the terminal 150 registration information and ID are transmitted to the base station 130, and the base station 130 records the ID of the terminal 150 privately. It transmits to the exchange 110 and checks whether the ID is registered in the TRS (Trunked Radio System; TRS), and transmits a confirmation signal to the terminal 150 when the ID is registered.

In such a mobile communication system, if a user loses or stolen the terminal 150, there is no function supported for the user to find the terminal. When the user reports the loss of the terminal 150 to the service provider, the service provider may use the corresponding terminal ( The subscriber is protected by using the method of stopping the service such as the suspension of 150).

2 is a block diagram illustrating a mobile communication terminal of FIG. 1.

Referring to FIG. 2, the mobile communication terminal includes a key manipulation unit 151 for allowing a cellular phone user to manipulate a call proposal of the cellular phone, and a display unit 152 displaying an input / output state through the key manipulation. And a flash memory having a central processing unit 154 for controlling a call suggestion function of the mobile phone including the input / output function, and a program for operating the mobile phone under control of the central processing unit 154. 156, an SRAM 157 for processing arithmetic and data in a mobile phone, an EEPROM 158 for storing a calling proposal number of the mobile phone, and a radio for wirelessly transmitting data of the mobile phone. And a processing unit 153, a baseband processing unit 155 for processing data transmitted from the wireless processing unit 153, and a ringtone circuit unit 159 for converting a digital signal into an analog signal.

The call proposal can be stored in the EEPROM 158 by the operation of the key operation unit 151 of the cellular phone configured as described above.

The EEPROM 158 stores data that can be arbitrarily stored by the user. The EEPROM 158 stores information that can display the state of the mobile phone. Therefore, the number of the mobile phone can be stored. Data is not supported even if it is not supplied.

However, when limiting the transmission of all the lost reported terminal has a problem that there is no way to find the lost terminal without the personal effort of the lost and learned person.

Disclosure of Invention An object of the present invention is to provide a method for limiting transmission of a terminal that allows the terminal to operate in a transmission limit mode when the user loses the terminal in view of the problems of the prior art mentioned above.

According to an aspect of the present invention for achieving the above object, the calling restriction method of the terminal comprises the steps of storing a telephone number selected by the user in the terminal, the terminal storing the telephone number through the paging channel from the base station; Receiving a call restriction command that is an order message sent out, and the terminal sends only to the stored phone number in response to the call restriction command.

Preferably, in the step of the terminal receiving the call restriction command, the call restriction command is included in an order message transmitted through a paging channel from a base station and is received as the terminal receives the call restriction message. A flag of the memory is set to a specific value, and whether to limit transmission is determined according to the specific value set in the flag.

1 is a block diagram showing the configuration of a general mobile communication system.

2 is a block diagram showing the configuration of the mobile communication terminal of FIG.

3 is a flowchart illustrating a call limiting method of a terminal according to the present invention;

4 is a flowchart illustrating a state of a terminal according to the present invention.

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

3 is a flowchart illustrating a call restriction method of a terminal according to the present invention.

Referring to FIG. 3, a method of limiting transmission of a terminal includes exchanging mutual transmission restriction messages between a base station and a terminal and thereby causing the terminal to switch to a transmission restriction mode.

First, the terminal user inputs a phone number to be restricted to the terminal in case of loss of the terminal. At this time, when the terminal is released, the phone number of the lost report center of the service provider is already designated as a default value, but may be selectively entered and stored in the user's home such as a phone number.

When the terminal is lost, the user reports the loss to the service provider, and the service provider who receives the loss report inputs the ID and the lost information of the lost terminal to the TRS of the exchange.

On the other hand, if a person who has acquired a lost terminal is powered on to use the terminal, the registration information and ID of the terminal are transmitted to the exchange through the corresponding base station and registered (S200).

Then, the exchange recognizes that the ID is illegally used by the received terminal and sends a signal to the service provider, and the service provider reconfirms the illegal use of the lost terminal and sends a message to the base station from the restricted transmission mode switching message. Send.

Subsequently, the base station receiving the transmission restriction mode switch message transmits the transmission restriction command message to the corresponding terminal through the order message of the paging channel (S210). Restriction command message used at this time is composed as following Table 1 .

signal beat MSG_TYPE ('00000111') 8 ACK_SEQ 3 MSG_SEQ 3 ACQ_REQ One VALID_ACK One ADDR_TYPE 3 ADDR_LEN 4 ADDRESS 8 ^* ADDR_LEN ORDER 6 ADD_RECORD_LEN 3 Order-specific fields (if used) 8 ^* ADD_RECORD_LEN RESERVED 2

Table 1 shows an example of an order message of a paging channel generally transmitted from a base station to a terminal.

Of these message types, MSG_TYPE is composed of 8 bits to determine which message to send to the terminal. The ORDER consists of 6 bits that determine the command part of the message type, but not all the bits have been used yet. Therefore, in the present invention, the code of the origination restriction command message is generated using the unused portion of these 6 bits.

Then, the terminal receiving the call restriction command message sets the call restriction mode flag of EPIROM to 'true' value, that is, 1 and transmits a call restriction command response message to the base station (S220).

At this time, the transmission restriction command response message used is configured as shown in Table 2 below.

signal beat MSG_TYPE 8 ACK_SEQ 3 MSG_SEQ 3 ACQ_REQ One VALID_ACQ One ACQ_TYPE 3 MSID_TYPE 3 MSID_LEN 4 MSID 8 * MSID_LEN RESERVED 2

Table 2 shows an example of the transmission restriction command response message transmitted from the terminal to the base station.

In general, the command message of the call channel transmitted from the base station to the terminal includes a message indicating whether the terminal responds.

That is, if the setting value of ACQ_REQ of the command message is '1', the terminal sends a response message including its ID to the base station, and if it is '0', the terminal does not send a response.

In the present invention, when a lost terminal becomes 'power-on', in order to prevent a case where several base stations around it continue to send a restriction message to the terminal, a transmission restriction that a base station first captures the terminal sends to the terminal. By setting the value of ACQ_REQ of the command message to '1', the terminal transmits the restriction command response message to the base station so that the base stations around the lost terminal do not have to continuously transmit the restriction command message.

As such, the terminal which transmits the transmission restriction mode response message to the base station is switched to the transmission restriction mode (S230), and when the terminal learner 'powers on' the terminal or attempts an illegal call, the internal software of the terminal is Yipirom. If the value of the call restriction mode flag is checked as 'true', the call number is already set and stored (S240).

4 is a flowchart illustrating a state of a terminal according to the present invention.

Referring to FIG. 4, the terminal using the terminal call limiting method is first stored with a phone number for the call limit mode in the YPIROM of the terminal by the user's selection (S300).

When the user reports the loss to the service provider when the user loses the terminal, the terminal receives a transmission restriction command message from the base station (S310).

Subsequently, the terminal sets the flag of EPIROM to 'True' according to the operation of the internal software (S320), and at the same time, the mode is switched to the call limit mode, which is stored on the LCD screen. Is displayed (S330).

In this state, if the learner tries to make an illegal call or the terminal is 'power-on', the terminal first checks the call restriction mode flag of IPIROM, and if the flag is true, the terminal calls only the previously stored phone number ( S350).

As described above, the present invention is limited to only a specific number stored and selected by the user when the terminal is lost. Thus, a person who loses the terminal by preventing illegal use of the terminal learner can easily find the terminal.

Claims (2)

Storing the telephone number selected by the user in the terminal; Receiving, by the terminal storing the telephone number, an origination restriction command, which is an order message transmitted from a base station through a paging channel; And transmitting only to the stored phone number when the terminal receives the call restriction command. The method of claim 1, In the step of receiving the call restriction command, the terminal sets a flag of a memory to a specific value according to the call restriction command, and determines whether to limit the call according to the specific value set in the flag. Restriction method of single shot.