KR100271453B1 - Method for communicating in mobile communication system - Google Patents

Abstract

PURPOSE: A communication method of a mobile communication system is provided to allow a PC(Personal Computer) to receive and store information and to transmit the information to a mobile station. So that communication for a corresponding mobile station is not suspended even though the mobile station exceeds a communicable area or is located in a wave shadow area, and additional services like the transmission of character data and facsimile are easily provided to a user of the mobile station. CONSTITUTION: A PC(Personal Computer) stores a voice message, a facsimile message or a character message received from a base station, while performing wireless communication with the base station. If a request of a mobile station is received, the PC transmits the stored corresponding message to the base station, to transmit the message to the mobile station. If the mobile station does not confirm the voice message, facsimile message or the character message received from the base station for a predetermined time, the PC periodically notifies the existence of the received message to the mobile station.

Description

Communication method of mobile communication system

The present invention relates to a mobile communication system, and more particularly, to a communication method of a mobile communication system for receiving and storing information transmitted to a mobile station by a personal computer (PC) and transmitting the information to a mobile station.

In general, the mobile communication system is widely commercialized due to the advantage that the user can communicate while moving. Such a mobile communication system includes a plurality of mobile stations, a plurality of base stations, and a plurality of mobile telephone switching stations. The mobile station registers a location in a base station of each region while communicating with a corresponding base station while moving its location.

The conventional mobile station terminal is provided with an RF module 1 and a logic module 2, as shown in FIG. 1, wherein the RF module 1 wirelessly transmits and receives signals necessary for mobile telephone communication, and the logic module 2 Controlling the operation of the mobile station terminal and input / output information transmitted and received. Meanwhile, the logic module 2 includes a modem unit 3, an EEPROM 4, an audio processor 5, a microphone 6, a speaker 7, a CPU 8, a memory unit 9, and a keypad unit 10. ) And the display unit 11. The audio processor 5 demodulates the voice signal received from the base station through the RF module 1 and outputs the same to the speaker 7 and frequency modulates the voice signal input through the microphone 6. The CPU 8 performs an operation of controlling each circuit unit included in the logic module 2, the memory unit 9 stores an application program necessary for the control operation of the CPU 8, and the keypad unit 10 is It is used to input the information necessary for communication. In addition, the display unit 11 displays so as to visually confirm the information generated when performing the communication operation, the EEPROM (4) stores various data necessary for communication, the modem unit (3) and the RF module (1) It modulates and demodulates various signals that are connected and received.

The operation in the case of communicating using the mobile station terminal as described above will be described with reference to FIG.

First, if the calling party is defined as A, and the called mobile station is called B, when A dials the telephone number of B, the mobile switching center inquires whether or not the mobile station B is registered. Thus, if the mobile station B is not registered in the position, it transmits a call unavailable message to the A side, and if the mobile station B is registered in the position, it establishes a call channel through the registered base station. Then, the call signal is transmitted to B and if there is a response from the B side, the call is made. On the other hand, by setting up a call channel and continuously checking whether an action for terminating the call is performed in A or B while the call is in progress, the call is terminated when the call is terminated, and the A, B side, and the mobile telephone exchange station for the call. All operations are terminated and the standby state is switched.

In the conventional mobile communication system as described above, when a mobile station is located in a communication area (transmission / reception area) formed by a base station, the mobile station can receive information. There is a problem in that communication with the mobile station is interrupted and no information can be received, and there is a problem in that an additional service such as text data and facsimile transmission is performed for a user of the mobile station.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The present invention has received and stored information transmitted to a mobile station by a PC and then transmitted to the mobile station, so that the mobile station is located outside the coverage area or located in a radio shading area. It is also an object of the present invention not to interrupt communication with the mobile station, and to easily provide an additional service of text data and facsimile transmission to the user of the mobile station.

1 is a schematic configuration diagram of a conventional mobile station terminal.

2 is a flowchart showing a communication operation in a conventional mobile communication system.

3 is a configuration diagram of a personal computer (PC) applied to a conventional mobile communication system.

4 is a flowchart illustrating an operation of transmitting and receiving a voice signal in the present invention.

5 is a flowchart illustrating a facsimile transmission and reception operation in the present invention.

6 is a flowchart illustrating an operation of transmitting and receiving text data in the present invention.

7 is a flowchart illustrating an operation of confirming a voice signal stored in a PC in the present invention.

8 is a flowchart showing a facsimile checking operation stored in a PC in the present invention.

9 is a flowchart illustrating a text data checking operation stored in a PC in the present invention.

10 is a flowchart showing an operation of notifying the PC that there is unconfirmed information in the present invention.

* Explanation of symbols for main parts of the drawings

1: RF Modem 2: Logic Module

2: modem unit 4: EEPROM

5: audio processor 6: microphone

7: speaker 8: CPU

9: memory unit 10: keypad unit

11: display unit 21: RF module

22: modem unit 23: main board

24: keyboard 25: monitor

26: sound card 27: speaker

28: microphone 29: hard disk

In the present invention is configured to receive and store the information transmitted to the mobile station by the PC to deliver to the mobile station, the PC 20 applied to the present invention is shown in Figure 3 RF module 21, modem A unit 22, a main board 23, a keyboard 24, a monitor 25, a sound card 26, a speaker 27, a microphone 28 and a hard disk 29 are provided. The RF module 21 performs a function of transmitting and receiving signals to and from the base station, and the hard disk 29 stores various data necessary for communication with the base station and application programs for communication control. The main board 23 includes a CPU and a memory unit for control processing, and executes an application program of the hard disk 29 to control various operations related to communication with the base station. In addition, the sound card 26 frequency demodulates the voice signal output to the speaker 27, frequency modulates the voice signal input through the microphone 28, and the monitor 25 controls the main board 23. Therefore, the information generated during communication with the base station is displayed so as to be visually confirmed, and the keyboard 24 is used for inputting information necessary for communication, and the modem unit 22 is transmitted and received through the RF module 21. Modulate and demodulate the signal.

The PC 20 configured as described above stores the voice message received through the RF module 21 from the base station and transmits the stored voice message to the base station through the RF module 21 when the mobile station requests it. And store the facsimile message and the text data received from the base station through the RF module 21 and transmit the corresponding facsimile message and the text data to the base station through the RF module 21 upon request of the mobile station. If the mobile station does not check for a certain period of time despite the presence of stored voice message, facsimile message or text data received from the base station, it indicates that there is a received and stored message according to the type of received and stored message. And periodically inform the mobile station of the If there are obtained by transmitting the message to the base station side through the RF module 21 is programmed to transmit to the mobile station.

In addition, the mobile station performs a conventional mobile communication operation, receives a message informing that the received message is not confirmed through the base station from the PC 20, and distinguished form according to the voice message, facsimile message or text data The voice message and text data stored in the PC 20 side are received and the voice message and text data from the PC 20 are received, and the PC 20 side is received. When a request for confirmation of a stored fax message is sent, the fax number to be received is transmitted to receive the fax message from the PC 20 using the desired fax, and the text data from the PC 20 is received. In this case, the character data is programmed to be displayed on the liquid crystal display device provided in the display unit.

Meanwhile, for convenience of explanation, the area where the PC 20 is installed will be referred to as a home (HOME) area. The base station and the mobile switching center perform the existing mobile communication function, as well as the PC of the home area ( 20) and a location registration for a mobile station moving to a location, and if a message indicating that there is an unreceived received storage message is received from the PC 20, it has the same telephone number as that PC 20; The mobile station transmits the received message to the mobile station, but when the mobile station is in the predetermined area A, the message sent from the PC 20 is received through the base station of the home area and transmitted to the mobile station using the base station of the area A via the mobile switching center. If a message is received from the mobile station requesting confirmation of the message stored in the PC 20, the message is sent. Through the area of the base station transmitted to the PC (20) and is programmed to transmit to the mobile station via the local base station of the mobile station to a message received from the PC (20) of the home location area. In more detail, when the mobile station and the PC 20 have the same subscriber information such as the same telephone number, and the mobile station and the PC 20 communicate through the base station of the area where the mobile station and the PC 20 are located, a predetermined flag is given. By transmitting and receiving together with the subscriber information, the base station separates the mobile station or the PC (20) to communicate, when the mobile station transmits a message to the base station side and transmits a flag indicating that the mobile station with its subscriber information to the base station When the base station identifies that the message has been received from the mobile station, and the PC 20 transmits the message to the base station axis, the base station transmits a flag indicating the PC 20 to the base station together with its subscriber information. Distinguishing that a message has been received from the PC 20, and when the base station transmits the message to the mobile station, Sends a flag to the mobile station indicating the transmission to the mobile station with the particle information so that the mobile station can receive its own message according to the subscriber information and the flag, and when the base station transmits the message to the PC 20 side, A flag indicating the transmission to the PC 20 together with the subscriber information of 20 is transmitted to the PC 20 so that the PC 20 receives the message separately by the subscriber information and the flag.

When the mobile station checks the received stored message to the PC 20 or when the PC 20 sends the required message to the mobile station, the base station or the mobile switching center receives the message from the same phone number and analyzes the received message. If the message of the promised content, the communication channel is set to the same phone number, and transmitted and received, but based on the flag and the mobile station and the PC 20 by sending and receiving a message between the mobile station and the PC 20 having the same phone number It is possible to transmit and receive, and manages the area A where the PC 20 is located and the mobile station is located so that the transmission and reception messages can be transmitted and received at the same time only in the home area or in the home area and area A.

In the above mobile communication system, when making a voice call to the mobile station, the procedure proceeds as shown in the flowchart of FIG.

First, when an arbitrary caller sends a mobile number of a mobile station to make a voice call with the mobile station (step S1), the mobile switching center inquires the location of the mobile station (step S2), and the location registration for the mobile station is performed only in the home area. It is confirmed whether or not it is performed (step S3). If the location registration for the mobile station is made only in the home area in step S3, the communication channel is set to the base station of the home area (step S4). In this case, the mobile station is out of the home area. When the location cannot be registered due to the radio shadow area, when the mobile station is turned off and the location is registered only by the PC 20 of the home area, or when the mobile station and the PC 20 are both located in the home area. Corresponding. When the mobile station located in the home area answers in step S4 (step S5), the mobile telephone exchange station sets up a call with the mobile station (step S6) so that the caller and the mobile station make a voice call (step S7). If a call termination is attempted, the call is terminated (step S8) to release the set call channel and the caller's telephone, base station, mobile switching center and mobile station are switched to standby (step S9). If the mobile station does not respond in step S4 (step S10), the PC 20 checks whether the user has driven the PC and waits until the user has a keyboard command to drive the PC (step S11), It is checked whether or not the waiting time set in the PC has elapsed (step S16). When the user operates the keyboard 24 to establish a call with the PC (step S12), the sound card 26 and the speaker 27 The microphone 28 is activated and communicates with the mobile station through the RF module 21 in the same manner as the mobile station (step S13). (Step S15). On the other hand, when the waiting time set in step S16 has elapsed, the main board 23 of the PC 20 automatically establishes a call with the base station and sends the RF module 21 to the automatic response message stored in the hard disk 29. After setting the recording time (step 17) and transmitting the message to the base station and recording the message received from the base station (step S18), the voice message received from the base station is recorded on the hard disk 29 (step S18). After the start, it is checked whether there is an end attempt or the recording setting time has elapsed, and when the end attempt or the recording setting time has elapsed (step S19), the call and recording are terminated and the process is switched to the standby state (step S20). If the location registration in step S3 is registered not only in the home area but also in the predetermined area A in which the mobile station is located, the call channel is set for the home area and the area A (step S21), and in the home area, the PC 20 sets the area A. In this case, the mobile station can receive. At this time, if the mobile station does not answer (step S22), the process proceeds to step S11 to perform an operation. If the mobile station responds (step S23), a call is set for the mobile station to activate only the mobile station (step S24). It is made possible (step S25), and it is checked whether a call termination is attempted while the call is in progress, and when there is a call termination attempt (step S26), the state is switched to the standby state. (Step S27).

In the mobile communication system of the present invention, the procedure shown in FIG. 5 is performed only when the fax message is transmitted to the mobile station.

First, when the caller transmits the mobile number of the mobile station (step S31), the mobile telephone exchange station inquires the location of the mobile station corresponding to the corresponding phone number (step S32), through the base station of the home area and the area A where the mobile station is located. A facsimile display signal (e.g., denoted by MF) and a facsimile message (e.g., denoted by FD, for example, transmitted data) to indicate facsimile transmission are transmitted (step S33). At this time, the PC 20 of the home area and the mobile station of the area A receive the facsimile indication signal MF. When the mobile station receives the facsimile indication signal MF, the facsimile informing that the transmission of the facsimile message FD is completed. The interlocking operation with the base station is stopped until the transmission completion signal is received, and when the PC 20 receives the facsimile display signal MF, the PC 20 receives the subsequent facsimile message FD, stores it in the hard disk 29, and simultaneously monitors it. Output to 25 (step S34). The operation continues until the facsimile transmission completion signal is received (step S36). When the facsimile transmission completion signal is received (step S35), the operation is switched to the standby state (step S37). .

Further, in the case of transmitting a text message to the mobile station in the mobile communication system of the present invention, the flow proceeds in the order shown in FIG.

First, when the caller transmits the mobile number of the mobile station (step S41), the mobile telephone exchange station inquires the position of the mobile station corresponding to the corresponding phone number (step S42), so as to locate the base station of the home area and the area A where the corresponding island station is located. A text transmission indication signal (e.g., denoted by MM) and a text message (corresponding to a transmitted character, e.g., denoted by MD) are transmitted to indicate that the text is transmitted (step S43). At this time, the PC 20 of the home area and the mobile station of the area A receive the text transmission indication signal MM, and the mobile station receives the text transmission indication signal MM while completing the transmission of the text message MD. A text message is received and displayed on its own display unit (LCD) until a text transmission completion signal is received, and the CP 20 receives a text message (MD) which is followed by receiving a text transmission display signal (MM). The data is stored on the disk 29 (step S44). This operation is continued until the character transmission completion signal is received (step S46). When the character transmission completion signal is received (step S45), the operation is returned to the standby state (step S47).

On the other hand, when the mobile station confirms the voice message received and stored in the PC 20 in the mobile communication system of the present invention, it proceeds in the order shown in FIG.

First, when the mobile station transmits a voice request signal for requesting transmission of the stored voice message to the PC 20 (step S51), the mobile switching center and the base station transmit the corresponding voice request signal to the home area. If the location is registered in A, the voice request signal is also transmitted through the base station in the area A (step S52). At this time, a voice request signal is received by both the mobile station and the PC 20. When the mobile station receives the voice request signal, the mobile station ignores the corresponding voice request signal and prepares to receive a voice message, and the PC 20 receives the voice request signal. Upon reception, the voice message received and stored in its own hard disk 29 is read out and transmitted through the RF module 21 (step S53). The voice message transmitted as described above is transmitted to the mobile station through the base station of the area A and output through the speaker of the mobile station, and the PC 20 continues to transmit the voice message until the stored voice message is transmitted or the transmission is terminated. Step S54). When the end command is detected at the base station or when there is a transmission completion signal from the PC 20 (step S55), the base station transmits a voice transmission completion signal (step S56), whereby the mobile station and the PC 20 enter the standby state. It switches (step S57).

In the mobile communication system of the present invention, when the mobile station checks the received fax message stored in the PC 20, it proceeds in the order shown in FIG.

First, when the mobile station transmits the facsimile request signal for requesting transmission of the received and stored facsimile message to the PC 20 and the facsimile number of the reception destination (step S61), the mobile switching center and the base station transmit the facsimile request signal to the home area. If the mobile station has registered the location in an arbitrary area A, the facsimile request signal is also transmitted through the base station in the area A (step S62). At this time, the facsimile request signal is received by both the mobile station and the PC 20. If the facsimile request signal is received by the mobile station, it ignores the facsimile request signal and stops the interworking with the base station until the facsimile transmission completion signal is received. When the 20 receives the facsimile request signal, the facsimile message received and stored in its own hard disk 29 is read out and transmitted to the facsimile number side of the reception destination via the RF module 21 (step S63). The facsimile message transmitted in this way is transmitted to the facsimile side corresponding to the receiving destination facsimile number via the base station and the mobile switching center, and the PC 20 receives the fax message until the stored facsimile message is transmitted or the transmission is terminated. The transmission continues (step S64). In addition, when the end command is detected at the base station or when there is a transmission completion signal from the PC 20 (step S65), the base station transmits a facsimile transmission completion signal (step S66), whereby the mobile station and the PC 20 wait. The state is switched to (step S67).

In the mobile communication system of the present invention, when the mobile station confirms the text message received and stored in the PC 20, it proceeds in the order shown in FIG.

First, when the mobile station transmits a text request signal for requesting transmission of the received text message to the PC 20 (step S71), the mobile switching center and the base station transmit the corresponding text request signal to the home area. When the location is registered in A, a text request signal is also transmitted through the base station in the area A (step S72). At this time, a text request signal is received by both the mobile station and the PC 20. When the mobile station receives the text request signal, the mobile station ignores the text request signal and prepares to receive the text message, and the PC 20 receives the text request signal. When receiving the data message, the text message received and stored in its own hard disk 29 is read out and transmitted to the base station via the RF module 21 (step S73). The text message transmitted as described above is transmitted to the mobile station via the mobile switching center and the base station and displayed on the display unit (LCD) of the mobile station. The PC 20 transmits the text message until the stored text message is completed or the transmission is terminated. The transfer of the process is continued (step S74). If the base station detects an end command or if there is a transmission completion signal from the PC 20 (step S75), the mobile station and the PC 20 are sent to the mobile station and the PC 20 so as to wait for the mobile station and the PC 20 to stand by. Switch to step (step S76)

In the mobile communication system of the present invention, when the PC 20 notifies the mobile station that an unidentified message is stored, it operates in the order shown in FIG.

First, in the standby state (step S71), when the storage message which is not confirmed by the mobile station exists in the hard disk 29 (step S82), the PC 20 does not confirm the message for notifying that there is an unconfirmed storage message. It is checked whether or not the data has been transmitted (step S83). At this time, when the message unacknowledged signal is not transmitted, the PC 20 transmits the message unacknowledged signal to the base station side, and at the same time transmits a message type signal corresponding to voice, facsimile or text message (step S84). Is initialized (step S87), the control unit returns to the step S81 to perform a repeating operation, and when the message S acknowledgment signal is transmitted in the step S83, the PC 20 determines whether a predetermined time set in the repetition period timer has elapsed. (Step S88), if the predetermined time has elapsed, the operation of step S84 is performed. If the predetermined time has not elapsed, the operation returns to the step S81 to perform the repeating operation. On the other hand, when the base station and the mobile switching center receive the message unacknowledged signal and the message type signal transmitted by the PC 20 in step S84, the mobile station retransmits the corresponding message unacknowledged signal and the message type signal to the base station of the region where the location is registered. ((Step S85), at this time, if the PC 20 receives the message unacknowledged signal and the message type signal, it is ignored. If the mobile station receives the message unacknowledged signal and the message type signal, the unacknowledged voice corresponding to the message type signal, The facsimile diagram displays and displays the fact that the text message is stored in the PC 20 (step S86).

Although the above description has been made of a case where the present invention is applied to a mobile communication system such as a mobile phone, the present invention is not limited thereto and may be usefully applied to a mobile communication system such as a personal mobile communication (PCS).

As described above, the present invention receives and stores the information transmitted to the mobile station by the PC and transmits the information to the mobile station, so that the communication with the mobile station is stopped even when the mobile station is out of the communication area or located in the radio shade area. This makes it easy to provide an additional service of text data and facsimile transmission to the user of the mobile station.

Claims (10)

And a plurality of mobile stations for wireless communication while moving in position, a plurality of base stations for forming a wireless communication area for wireless communication with the mobile station, and a mobile telephone exchange station for connecting to the base station and a wired communication network to establish a call to the mobile station. A communication method of a mobile communication system, comprising: a PC communicating wirelessly with the base station; The PC stores the voice message, facsimile message or text message received from the base station, and transmits the stored voice message to the mobile station by transmitting the stored voice message to the base station when requested by the mobile station. And when the mobile station does not check for a predetermined time despite the presence of a stored voice message, a facsimile message or a text message, the mobile station periodically notifies the mobile station that there is a received and stored message. The communication method according to claim 1, wherein the PC is assigned the same unique identification number corresponding to the mobile station. The communication method according to claim 1 or 2, wherein the base station simultaneously performs location registration management for the mobile station and the PC to which the same unique identification number is assigned. A communication method of a mobile communication system, comprising: a first step of checking whether a location registration of a corresponding mobile station is made only in a home region where a PC is located when a call to a mobile station is generated from a caller; A second step of establishing a call channel to a base station of the home area when the location registration for the mobile station is performed only in the home area in the first step; A third step of setting a call with the mobile station so that the caller and the mobile station make a voice call when the mobile station answers in the second step, and ending the call when the call ends; A fourth step of checking whether the PC is driven by the user when the mobile station does not respond in the second step and waiting until there is a keyboard command for driving or checking whether a preset waiting time has elapsed; ; In the fourth process, when a keyboard command is input to the PC, a call is established between the mobile station and the PC, and a voice process is performed through the PC's speaker and a microphone to make a call with the mobile station. and; After the waiting time set in step 4 has elapsed, the call between the PC and the mobile station is automatically set up, the auto-response message stored in the PC is transmitted to the mobile station, and the voice message received from the mobile station is recorded and stored in the PC. A sixth process of switching to the standby state; If the location registration is performed not only in the home area but also in the arbitrary area where the mobile station is located in the first step, the call channel is set for the home area and the random area, and if the mobile station does not answer, the process proceeds to the fourth step to perform the operation. And when the mobile station responds, sets up a call to the mobile station to enable only the mobile station to make a call, and then switches to a standby state when the call ends. In a communication method of a mobile communication system, when a call to a mobile station is generated from a caller, the location of the mobile station is inquired, and a facsimile indication signal is used to indicate that the fax is transmitted through a base station of a home region where the PC is located and an arbitrary region where the mobile station is located. And a first step of transmitting a facsimile message; When the mobile station receives the facsimile indication signal in the first step, the interworking operation with the base station is stopped until the facsimile transmission completion signal indicating that the facsimile message transmission is completed is received, and the PC continues when the facsimile indication signal is received. A second process of receiving and storing the facsimile message and outputting the same for visual confirmation; And a third step of switching the PC and the mobile station to a standby state when the facsimile transmission completion signal is received in the second step. In a communication method of a mobile communication system, when a call to a mobile station is generated from a caller, the position of the mobile station is queried, and a text transmission is performed to indicate that the text is transmitted through a base station of a home region where the PC is located and an arbitrary region where the mobile station is located. Transmitting a display signal and a text message; A second step of receiving, by the mobile station, the text transmission indication signal and displaying the text message on its own display unit, and receiving and storing the subsequent text message when the PC receives the text transmission indication signal; ; And a third step of switching the PC and the mobile station to a standby state when the text transmission completion signal from the caller is received in the second step. In a communication method of a mobile communication system, when a mobile station transmits a voice request signal for requesting transmission of a stored voice message to a PC, the voice request is performed through a base station of a home area where the PC is located and an arbitrary area where the mobile station is located. A first step of transmitting a signal; When the mobile station receives the voice request signal in the first step, the mobile station ignores the voice request signal and prepares to receive the voice message. When the PC receives the voice request signal, the mobile station reads the received voice message and stores the voice message. A second process of transmitting to the side; And a third step of the mobile station and the PC switching to the standby state by transmitting a transmission completion signal to the base station by transmitting a transmission completion signal to the base station when the PC completes transmission of the stored voice message in the second step. A communication method of a mobile communication system, characterized in that. In a communication method of a mobile communication system, when a mobile station transmits a facsimile request signal for requesting transmission of a received fax message and a fax number of a receiving destination, a base station of a home area where the PC is located and an arbitrary area where the mobile station is located. Transmitting a facsimile request signal and a facsimile number through the first process; When the mobile station receives the facsimile request signal in the first step, it ignores the facsimile request signal and stops the interworking operation with the base station until the facsimile transmission completion signal is received. When the PC receives the facsimile request signal, the mobile station receives the facsimile request signal. A second step of reading out the stored fax message and sending it to the fax number side of the receiving destination; And a third step of the mobile station and the PC switching to the standby state by transmitting the transmission completion signal to the base station by transmitting the transmission completion signal to the base station when the PC completes the transmission of the stored facsimile message in the second step. A communication method of a mobile communication system, characterized in that. In a communication method of a mobile communication system, when a mobile station transmits a text request signal for requesting transmission of a stored text message to a PC, the text request signal is transmitted through a base station in a home region where the PC is located and an arbitrary region where the mobile station is located. A first process of doing; When the mobile station receives the text request signal in the first step, the mobile station ignores the text request signal and prepares to receive the text message. When the PC receives the text request signal, the mobile station reads the received text message and stores the text message. A second process of transmitting to the mobile station and displaying on the display means of the mobile station; And a third step of the mobile station and the PC switching to the standby state by transmitting a transmission completion signal to the base station by transmitting a transmission completion signal to the base station when the PC completes the transmission of the stored text message in the second step. A communication method of a mobile communication system, characterized in that. In a mobile communication system, when there is a received stored message not confirmed by the mobile station in the PC standby state, a message unacknowledged signal for notifying that there is an unconfirmed stored message, and a message type corresponding to a voice, fax or text message. Transmitting a signal at predetermined time intervals; A second step of retransmitting the message unacknowledged signal and the message type signal transmitted by the PC in the first step to a base station of a region where the mobile station is registered; In the second step, when the PC receives the message unacknowledged signal and the message type signal from the base station, it is ignored. When the mobile station receives the message unacknowledged signal and the message type signal, an unidentified voice, facsimile or text message corresponding to the message type signal is received. And a third step of displaying and displaying the fact that is stored in the PC on a display unit.

Images