JP2001197566A - Wireless communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless communication terminal that allow a communication opposite party to feel as if a speech were received from a party's own terminal even when the party makes a speech by using other communication terminal. SOLUTION: A communication terminal A makes a call to a wireless communication terminal X, and the wireless communication terminal X makes a 3-party speech request including the communication terminal A, the wireless communication terminal X and a communication terminal B being a 3rd party other than the communication terminal A and the wireless communication terminal X to a network according to an instruction of the communication terminal A in compliance with a prescribed procedure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication terminal capable of utilizing a three-party call and a call transfer service in a wireless communication system.

[0002]

2. Description of the Related Art Conventionally, wireless communication terminals typified by conventional portable telephone radios and PHSs are usually worn or carried around in backpacks. In order to charge the battery, you need to charge it in a place different from where you are at hand.
It is assumed that there is no wireless communication terminal at hand when the owner wants to use it, such as when he or she has left it in a car or the like.

In such a case, if a call is desired to be made to another person, the call is made using other communication means, for example, a public telephone or another person's wireless communication terminal, instead of the own wireless communication terminal. .

[0004]

As described above, when a call is made from a terminal other than the wireless communication terminal owned by the user,
A caller number different from the wireless communication terminal owned by the user is notified, or a public telephone or the like notifies that the call is from a public telephone, and the caller number is not notified. In this case, if the other party does not receive an incoming call other than the specific caller ID, or if the incoming call from other than the specific caller ID is set to answer phone mode, the call cannot be made with the other party. was there.

[0005] In addition, when a call is made from a terminal other than the wireless communication terminal owned by the user, the telephone number stored in the telephone directory of the wireless communication terminal owned by the user cannot be used.

In view of these problems, the present invention provides a radio communication terminal that allows a communication partner to make a pseudo-call from its own terminal even when a call is made from another communication terminal. The purpose is to:

Another object of the present invention is to provide a wireless communication terminal that can use the telephone directory of its own terminal even when a call is made from another communication terminal. I do.

[0008]

According to one aspect of the present invention, there is provided a wireless communication terminal connected to a wireless communication system which simultaneously communicates with a plurality of communication terminals.
While receiving an incoming call from the first communication terminal, the second
Receiving a call request to the second communication terminal, the mobile communication system sends a call request to the second communication terminal to the wireless communication system to which the own terminal is connected, and the first communication terminal and the second communication terminal And control means for setting a state in which a call can be made between the control unit and the control unit.

[0009] The invention described in claim 2 of the present invention is claim 1.
The wireless communication terminal according to claim 1, further comprising storage means for storing a telephone number of a communication partner, wherein the control means searches the storage means for a telephone number of a second communication terminal, and sends the search result to the first communication terminal. And a search means for notifying.

According to a third aspect of the present invention, there is provided a wireless communication terminal connected to a wireless communication system capable of transferring an incoming call received from a first communication terminal to a second communication terminal. Upon receiving an incoming call from the communication terminal and receiving a call request to the second communication terminal, the mobile terminal issues a call request to the second communication terminal to the wireless communication system to which the own terminal is connected, and And a control unit for setting a state in which a call can be made between the first communication terminal and the second communication terminal.

The invention according to claim 4 of the present invention is the invention according to claim 3.
The wireless communication terminal according to claim 1, further comprising storage means for storing a telephone number of a communication partner, wherein the control means searches the storage means for a telephone number of a second communication terminal, and sends the search result to the first communication terminal. And a search means for notifying.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A wireless communication terminal according to the present invention will be described.
A description will be given using the wireless communication terminal shown in FIG. 1 as an example.

The radio section 1 comprises an antenna (ANT) 11, a duplexer (DPX) 12, a transmitting section (TX) 13, a receiving section (RX) 14, and a synthesizer (SYN) 15. The wireless communication terminal transmits and receives wireless signals via the wireless unit 1.

The control section 2 comprises a ROM 21, a RAM 22, and a baseband section (BB) 23. ROM
Reference numeral 21 stores various programs for controlling the operation of the terminal. BB23 is a control unit that controls the entire wireless communication terminal.

The input / output unit 3 includes a camera (CAM) 31, a display drive unit (DRV) 32, a display unit (LCD) 33, a microphone (MIC) 34, a speaker (SPAKER) 35,
Key input unit (KEY) 36, vibrator (VIB) 3
7, a sounder (SOUNDER) 38. The LCD 33 displays various data input by the user from the KEY 36, and outputs the voice input by the user from the MIC 34 and the voice of the other party received via the wireless unit 1 to the SP.
The SOUNDDER 38 and VIB 37 output the notification from the EAKER 35 or notify the incoming call from the other party.
Or the user inputs an image from the CAM 31. Although FIG. 1 shows a configuration generally provided in a wireless communication terminal, the camera (CAM) 31 and the vibrator (VIB) 37 may be wireless communication terminals that do not have any configuration requirements.

The power supply section 4 comprises a power supply (PS) 41, a charging circuit (CHG) 42, and a battery (BAT) 43. The power supply unit 4 supplies power to the wireless communication terminal.

Next, the configuration of the BB 23 in the wireless communication terminal of the present embodiment will be described.

As shown in FIG. 2, the BB 23 includes a communication mode setting means 231, an automatic incoming call response means 232, a transmission control means 233, and a telephone directory search means 234.

The communication mode setting means 231 is a control means for presetting a communication mode in the wireless communication terminal.

The radio communication terminal shown in this embodiment receives an incoming call as usual, and when the operator responds to the incoming call, other than the first communication mode in which a call is started, when the incoming call is received, it will be described later. A second communication mode is provided in which the automatic incoming call response means 232 automatically receives an incoming call, and the transmission control means 233 makes a predetermined communication request to the network side in response to an instruction from a communication partner.
The predetermined communication request exemplified in the present embodiment is a network-side service request for a three-party communication service for making a communication with a terminal, a communication partner, and a third party other than the two parties. , A call transfer service request for transferring an incoming call from a communication partner to a third party. These services have already been realized as services on the network side.

The call mode setting means 231 is a setting means for setting in advance which of the above-mentioned first communication mode and second communication mode is to be used when an incoming call is received. .

The automatic receiving means 232 is a means for automatically receiving an incoming call when the communication mode is set to, for example, the second communication mode. The automatic incoming call receiving means 232 automatically receives an incoming call even when, for example, the answering machine mode is set.

The outgoing call control means 233 is a means for requesting the network side for a three-party call service or a call transfer service when a call is received from a communication partner and a predetermined input instruction is given.

The telephone directory search means 234 allows the operator of the wireless communication terminal to search for a telephone number from a telephone directory stored in the RAM 22 and storing the telephone number thereof in accordance with an instruction from the input unit KEY 36 provided in the terminal. In addition to the conventional operation, a search operation of the telephone directory is performed in accordance with an instruction from the other party receiving the incoming call.

Next, FIG. 3 shows a system configuration in which the wireless communication terminal X of the present invention is used.

The radio communication terminal X is connected to the control station CS via a base station BS via a radio line. The control station CS is connected to a public network NW, and the public network NW is connected to a communication terminal A and a communication terminal B. (First Embodiment) Next, a first embodiment of the wireless communication terminal X described with reference to FIGS. 1 and 2 will be described with reference to FIG.

This operation is performed from the communication terminal A to the wireless communication terminal X.
And a communication terminal A, a wireless communication terminal X, and a communication terminal B which is a third party other than the communication terminal A and the wireless communication terminal X shown in FIG. This is an operation in which the communication terminal A instructs the network side of the three-way call request from the wireless communication terminal X.

The communication terminal A issues a call request to the network side control station CS for managing the wireless communication terminal X via the public network to the wireless communication terminal X (step 401). The control station CS receives the call request to the radio communication terminal X (step 402).

Upon receiving the call request, radio communication terminal X receives the call request, and accepts the call request.
(Step 403). Thereafter, the communication between the communication terminal A and the wireless communication terminal X starts (step 40).
4).

In the case of the present embodiment, the radio communication terminal X is previously set to the second communication mode by the communication mode setting means 231 described above. State.

Thereafter, the radio communication terminal X gives guidance for receiving an input instruction from the communication terminal A (step 405). This guidance may be provided by voice, for example, HTML (Hyper Text).
Mark-up Language) and WML (Wir)
For example, a method of transmitting information described in a description language such as e.g., e.g. e.

Thereafter, the communication terminal A sends a remote control instruction to the radio communication terminal X to make a three-party call request from the radio communication terminal X to the control station CS together with the personal identification number (step 406). In the present embodiment, the input of a personal identification number for improving the security of the wireless communication terminal X for performing the remote operation is provided. This password is set in the wireless communication terminal X in advance. It is also possible to omit this password.

Upon receiving a request for a remote operation instruction from the communication terminal A, the wireless communication terminal X transmits voice guidance or information described in the above-described description language such as HTML or WML to the communication terminal X. A is notified (step 407).

After confirming that the remote operation instruction has been received, communication terminal A instructs wireless communication terminal X of the telephone number of communication terminal B making the three-party call request, and communication terminal B
(Step 408).

The radio communication terminal X, having received the three-party call request from the communication terminal A, makes a three-party call request to the control station CS using the control signal protocol and the PB tone (step 409). .

The control station CS that has received the three-way call request from the wireless communication terminal X suspends the call between the communication terminal A and the wireless communication terminal X (step 410). This communication terminal A
Hold state between the terminal and the wireless communication terminal X (step 411)
During this time, the control station CS makes a call from the communication terminal A to the communication terminal B that has requested the three-way call (step 41).
2), upon receiving the incoming call, communication terminal B accepts the call request and notifies control station CS of that (step 41).
3). If the communication terminal B does not accept the call request for a reason such as a call with another communication partner, the three-way call cannot be made, and the control station CS notifies the wireless communication terminal X of that fact.
And the communication terminal A.

When communication terminal B accepts the call and enters a call-enabled state, control station CS releases the hold state between communication terminal A and wireless communication terminal X (step 414), and thereafter,
A three-way call is performed between the communication terminal A, the wireless communication terminal X, and the communication terminal B (step 415).

In a state where a three-way call is being performed, the radio communication terminal X only needs to fulfill the role of a repeater, so that it is locked so as not to accept other functions.
The input from the KEY36 is not accepted, and the SPEAKER3
It is appropriate to set a state in which no call voice is output from the terminal 5 and an input from the MIC 34 is not accepted.

As described above, the wireless communication terminal X of the first embodiment makes a three-way call request including the communication terminal B to the control station CS in response to the request from the communication terminal A. Thus, from the viewpoint of the communication terminal B, it is possible to realize a state in which an incoming call is received from the wireless communication terminal X. For example, assuming that the caller number is notified, even if the caller is communicating with communication terminal B using communication terminal A, the caller number of wireless communication terminal X will be transmitted to communication terminal B. Will be notified. (Second Embodiment) Next, a second embodiment will be described with reference to FIG.

The present embodiment differs from the first embodiment in that the communication terminal A instructs the wireless communication terminal X to issue a three-party call request with the communication terminal B to the network side as shown in FIG. Same as above, except that the telephone number of the communication terminal B is
Is different from that of the telephone directory provided by.

Communication terminal A issues a call request to wireless communication terminal X to a control station CS on the network side that manages wireless communication terminal X via the public network (step 501). The control station CS receives the call request to the radio communication terminal X (step 502).

Upon receiving the call request, the radio communication terminal X receives the call request and accepts the call request.
(Step 503). Thereafter, the communication between the communication terminal A and the wireless communication terminal X starts (step 50).
4).

In the case of this embodiment, the radio communication terminal X is set in advance to the second communication mode by the communication mode setting means 231 described above. State.

Thereafter, the radio communication terminal X gives guidance for receiving an input instruction from the communication terminal A (step 505). This guidance may be provided by voice, for example, HTML (Hyper Text).
Mark-up Language) and WML (Wir)
For example, a method of transmitting information described in a description language such as e.g., e.g. e.

Thereafter, communication terminal A sends a remote control instruction to wireless communication terminal X to issue a three-party call request from wireless communication terminal X to control station CS together with the personal identification number (step 506). . In the present embodiment, the input of a personal identification number for improving the security of the wireless communication terminal X for performing the remote operation is provided. This password is set in the wireless communication terminal X in advance. It is also possible to omit this password.

Upon receiving a request for a remote operation instruction from communication terminal A, radio communication terminal X transmits voice guidance or information described in the above-described description language such as HTML or WML to the communication terminal. A is notified (step 507).

After confirming that the remote control instruction has been received, the communication terminal A sends the telephone number of the communication terminal B making the three-party call request to the wireless communication terminal X in the telephone directory of the wireless communication terminal X. From the user (step 50)
8). As a result of this search, the corresponding telephone number is notified to the communication terminal A by voice guidance or information described in a description language such as HTML or WML described above (step 509).

Thereafter, the communication terminal A selects the telephone number of the communication terminal B making a three-party call request from the corresponding telephone number in the search with respect to the wireless communication terminal X, and the three-party communication including the communication terminal B is performed. Make a three-party call request to make a call (step 5
10).

The radio communication terminal X that has received the three-party call request from the communication terminal A makes a three-party call request to the control station CS using the control signal protocol and the PB tone (step 511). .

The control station CS that has received the three-party call request from the radio communication terminal X suspends the call between the communication terminal A and the radio communication terminal X (step 512). This communication terminal A
Hold state between the terminal and the wireless communication terminal X (step 513)
During this time, the control station CS makes a call from the communication terminal A to the communication terminal B that has requested the three-way call (step 51).
4), upon receiving the incoming call, the communication terminal B accepts the call request and notifies the control station CS of that (step 51).
5). If the communication terminal B does not accept the call request for a reason such as a call with another communication partner, the three-way call cannot be made, and the control station CS notifies the wireless communication terminal X of that fact.
And the communication terminal A.

When communication terminal B accepts the call and enters a callable state, control station CS releases the hold state between communication terminal A and wireless communication terminal X (step 516), and thereafter,
A three-way call is performed between the communication terminal A, the wireless communication terminal X, and the communication terminal B (step 517).

In a state in which a three-way call is being performed, the wireless communication terminal X only needs to fulfill the role of a repeater, so that it is locked so as not to accept other functions.
The input from the KEY36 is not accepted, and the SPEAKER3
It is appropriate to set a state in which no call voice is output from the terminal 5 and an input from the MIC 34 is not accepted.

As described above, in response to the request from the communication terminal A, the wireless communication terminal X of the second embodiment searches the telephone directory included in the wireless communication terminal X and changes the telephone number of the communication terminal B. In addition to being able to search, it is possible to make a three-way call request including the communication terminal B to the control station CS. Can be realized. For example, assuming that the caller number is notified, even if the caller is communicating with communication terminal B using communication terminal A, the caller number of wireless communication terminal X is not changed to communication terminal B.
Will be notified. Further, since the telephone directory included in the wireless communication terminal X can be used from another communication terminal A, the telephone directory data can be used even when the wireless communication terminal X is not at hand. (Third Embodiment) Next, a third embodiment will be described with reference to FIG.

The operation of the wireless communication terminal X in the present embodiment is as shown in FIG. 3, where a call is made from the communication terminal A to the wireless communication terminal X, and the communication terminal A and the communication terminals A, Communication terminal B that is a third party other than wireless communication terminal X
This is an operation in which the communication terminal A instructs the network side from the wireless communication terminal X to issue a call transfer request for making a call with the network.

The communication terminal A issues a call request to the network-side control station CS for managing the wireless communication terminal X via the public network to the wireless communication terminal X (step 601). The control station CS receives the call request to the radio communication terminal X (step 602).

Upon receiving the incoming call, the radio communication terminal X receives the incoming call request, and accepts the incoming call request.
(Step 603). Thereafter, the communication between the communication terminal A and the wireless communication terminal X starts (step 60).
4).

In the case of the present embodiment, the radio communication terminal X has been previously set to the second communication mode by the communication mode setting means 231 described above. State.

After that, the radio communication terminal X gives guidance for receiving an input instruction from the communication terminal A (step 605). This guidance may be provided by voice, for example, HTML (Hyper Text).
Mark-up Language) and WML (Wir)
For example, a method of transmitting information described in a description language such as e.g., e.g. e.

Thereafter, the communication terminal A sends a remote control instruction to the radio communication terminal X to make a three-party call request from the radio communication terminal X to the control station CS together with the personal identification number (step 606). In the present embodiment, the input of a personal identification number for improving the security of the wireless communication terminal X for performing the remote operation is provided. This password is set in the wireless communication terminal X in advance. It is also possible to omit this password.

Upon receiving the request for the remote operation instruction from the communication terminal A, the radio communication terminal X transmits voice guidance or information described in the above-described description language such as HTML or WML to the communication terminal X. A is notified (step 607).

After confirming that the remote operation instruction has been received, communication terminal A instructs wireless communication terminal X of the telephone number of communication terminal B making the call transfer request, and communication terminal B
A request is made to transfer the call to (step 608).

The wireless communication terminal X that has received the three-party call request from the communication terminal A makes a call transfer request to the control station CS using the control signal protocol and the PB tone (step 609).

The control station CS having received the call transfer request from the radio communication terminal X suspends the call between the communication terminal A and the radio communication terminal X (step 610). This communication terminal A
Hold state between the terminal and the wireless communication terminal X (step 611)
During this time, the control station CS makes a call to the communication terminal B that has requested the call transfer from the communication terminal A (step 61).
2) After receiving the incoming call, the communication terminal B accepts the call request and notifies the control station CS of that (step 61).
3). Note that if the communication terminal B does not accept the call request for a reason such as busy talking to another communication partner, the call transfer cannot be performed, and the control station CS notifies the wireless communication terminal X of that fact.
And the communication terminal A.

When communication terminal B accepts the call and enters a callable state, control station CS releases the hold state between communication terminal A and wireless communication terminal X (step 614), and thereafter,
A call is made between the communication terminal A and the communication terminal B (step 615).

In the state where the call transfer is being performed, the radio communication terminal X only needs to fulfill the role of a repeater, so that it is locked so as not to accept other functions, and
The input from the EY36 is not accepted, and the SPEAKER35
It is appropriate to make a state in which no call voice is output from the MIC and furthermore, an input from the MIC 34 is not accepted.

As described above, the radio communication terminal X according to the third embodiment can make a request for call transfer to the communication terminal B to the control station CS in response to the request from the communication terminal A. From the viewpoint of the communication terminal B, a state where an incoming call is received from the wireless communication terminal X can be realized. For example, assuming that the caller number is notified, even if the caller is communicating with communication terminal B using communication terminal A, the caller number of wireless communication terminal X will be transmitted to communication terminal B. Will be notified. (Fourth Embodiment) Next, a fourth embodiment will be described with reference to FIG.

This embodiment is the same as the third embodiment in that the communication terminal A instructs the radio communication terminal X to issue a call transfer request to the communication terminal B to the network side as shown in FIG. However, the telephone number of the communication terminal B is changed to the wireless communication terminal X.
Is different from that of the telephone directory provided by.

The communication terminal A issues a call request to the radio communication terminal X to the control station CS on the network side that manages the radio communication terminal X via the public network (step 701). The control station CS receives the call request to the radio communication terminal X (step 702).

Upon receiving the call request, radio communication terminal X receives the call request, and accepts the call request.
(Step 703). Thereafter, the communication between the communication terminal A and the wireless communication terminal X starts (step 70).
4).

In the present embodiment, the radio communication terminal X is set in advance to the second communication mode by the communication mode setting means 231 described above. State.

Thereafter, the radio communication terminal X gives guidance for receiving an input instruction from the communication terminal A (step 705). This guidance may be provided by voice, for example, HTML (Hyper Text).
Mark-up Language) and WML (Wir)
For example, a method of transmitting information described in a description language such as e.g., e.g. e.

Thereafter, communication terminal A sends a remote control instruction to wireless communication terminal X to issue a call transfer request from wireless communication terminal X to control station CS together with the password (step 706). In the present embodiment, the input of a personal identification number for improving the security of the wireless communication terminal X for performing the remote operation is provided. This password is set in the wireless communication terminal X in advance. It is also possible to omit this password.

Upon receiving a request for a remote operation instruction from communication terminal A, radio communication terminal X transmits voice guidance or information described in the above-described description language such as HTML or WML to the communication terminal. A is notified to A (step 707).

Upon confirming that the remote operation instruction has been received, communication terminal A transmits the telephone number of communication terminal B making a call transfer request to wireless communication terminal X from the telephone directory of wireless communication terminal X. A search instruction is issued (step 70).
8). As a result of the search, the corresponding telephone number is notified to the communication terminal A by voice guidance or information described in the above described description language such as HTML or WML (step 709).

After that, the communication terminal A selects the telephone number of the communication terminal B making the call transfer request from the corresponding telephone number in the search to the wireless communication terminal X, and transfers the call to the communication terminal B. Make a call transfer request (step 71)
0).

Radio communication terminal X, having received the call transfer request from communication terminal A, makes a call transfer request to control station CS using the control signal protocol and PB tone (step 711).

The control station CS having received the call transfer request from the radio communication terminal X suspends the call between the communication terminal A and the radio communication terminal X (step 712). This communication terminal A
Hold state between the terminal and the wireless communication terminal X (step 713)
During this time, the control station CS makes a call to the communication terminal B that has requested the call transfer from the communication terminal A (step 71).
4), upon receiving the incoming call, the communication terminal B accepts the call request and notifies the control station CS of that (step 71).
5). If the communication terminal B does not accept the call request for a reason such as a call with another communication partner, the three-way call cannot be made, and the control station CS notifies the wireless communication terminal X of that fact.
And the communication terminal A.

When communication terminal B accepts the call and enters a call-enabled state, control station CS releases the hold state between communication terminal A and wireless communication terminal X (step 716), and thereafter,
A call is made between the communication terminal A and the communication terminal B (step 717).

In the state where the call transfer is being performed, the radio communication terminal X only needs to fulfill the role of a repeater.
The input from the EY36 is not accepted, and the SPEAKER35
It is appropriate to make a state in which no call voice is output from the MIC and furthermore, an input from the MIC 34 is not accepted.

The radio communication terminal X that has received the telephone directory search instruction (step 708) described with reference to FIG. 7 performs a search operation as shown in FIG.

That is, the telephone number search keyword transmitted from the communication terminal A is received (step 7080), and the telephone directory is searched based on the keyword (step 7081). This search result is notified to the communication terminal A (step 709), and it is detected whether or not there is a re-search request (step 7082).

It goes without saying that this search operation can also be applied to the search operation in the second embodiment.

As described above, in response to the request from the communication terminal A, the wireless communication terminal X according to the fourth embodiment searches the telephone directory of the wireless communication terminal X and changes the telephone number of the communication terminal B. In addition to being able to search, it is possible to make a call transfer request including the communication terminal B to the control station CS, and from the communication terminal B, an incoming call is received from the wireless communication terminal X. The state can be realized. For example, assuming that the caller number is notified, even if the caller is communicating with communication terminal B using communication terminal A, the caller number of wireless communication terminal X will be transmitted to communication terminal B. Will be notified. Further, since the telephone directory included in the wireless communication terminal X can be used from another communication terminal A, the telephone directory data can be used even when the wireless communication terminal X is not at hand.

In the case where the communication terminal A indicates the telephone number of the other party of the three-party call request described in the first embodiment or the other party of the call transfer described in the third embodiment, the wireless communication The terminal X sends information described in a description language such as HTML or WML to be displayed on the screen to the communication terminal A as shown at 81 in FIG. It is easier to enter the other party's phone number. Note that FIG.
“090” described in 81 is information input by the operator of the communication terminal A.

Further, when the communication terminal A searches for the telephone number of the partner of the three-party call request described in the second embodiment described above or the telephone number of the call transfer partner described in the fourth embodiment, the wireless communication is performed. The terminal X sends information described in a description language such as HTML or WML to be displayed on the screen as shown by 91 in FIG. 10 to the communication terminal A, and furthermore, shown by 92 in FIG. And WML to be displayed on the screen like
And transmits information described in a description language such as
The operator of the communication terminal A can easily search for the telephone number of the other party by causing the operator to select. Note that “Y” described in 91 is information input by the operator of the communication terminal A.

Although the configuration of the BB 23 of the wireless communication terminal X has been described as shown in FIG. 2, the communication mode setting means 231 does not necessarily need to be provided. Further, the telephone directory search means 233 need not be provided in the first and third embodiments.

When the wireless communication terminal X described in the first, second, third, and fourth embodiments issues a three-party call request or a call transfer request to the control station CS, the control is performed. The request is made using a signal or a PB tone, but the request is not limited to this.
A three-way call request or a call transfer request may be made after disconnection.

In the case where the radio communication terminal X has a multi-call function capable of simultaneously performing a plurality of calls, which has been realized in recent years, the state in which the communication with the communication terminal A is performed in the first call. Then, a three-party call request or a call transfer request may be made to the control station CS in the second call.

Further, the radio access system, frequency range, voice coding system, and the like adopted by the radio communication terminal of the present invention are not limited to those types.

[0090]

As described above, the wireless communication terminal according to the present invention, in response to a request from the first communication terminal, requests the control station CS to make a three-way call request and call transfer including the second communication terminal. This makes it possible to make a request, and from the viewpoint of the second communication terminal, it is possible to obtain an effect that a state in which an incoming call is received from the wireless communication terminal can be realized.

Further, since the telephone directory provided in the wireless communication terminal can be used from another communication terminal, the telephone directory data can be used even when the wireless communication terminal is not at hand. Is obtained.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration of a wireless communication terminal according to an embodiment;

FIG. 2 is a BB2 of the wireless communication terminal according to the embodiment;
It is a figure showing three composition.

FIG. 3 is a diagram illustrating a system configuration diagram to which the wireless communication terminal according to the present embodiment is applied;

FIG. 4 is a sequence diagram showing exchanges between a communication terminal A, a wireless communication terminal X, a control station CS, and a communication terminal B according to the first embodiment.

FIG. 5 is a sequence diagram showing exchanges between a communication terminal A, a wireless communication terminal X, a control station CS, and a communication terminal B in the second embodiment.

FIG. 6 is a sequence diagram showing exchanges between a communication terminal A, a wireless communication terminal X, a control station CS, and a communication terminal B according to the third embodiment.

FIG. 6 is a sequence diagram showing exchanges between a communication terminal A, a wireless communication terminal X, a control station CS, and a communication terminal B in the fourth embodiment.

FIG. 8 is a flowchart illustrating an operation of a wireless communication terminal X for searching a telephone directory in the fourth embodiment.

FIG. 9 is a diagram illustrating a state in which information transmitted by the wireless communication terminal X and received by the communication terminal A is displayed on the display unit of the communication terminal A;

FIG. 10 is a diagram illustrating a state in which information transmitted by the wireless communication terminal X and received by the communication terminal A is displayed on the display unit of the communication terminal A;

[Explanation of symbols]

1 ... Wireless unit 1, 11 ... Antenna (ANT), 1
2 Duplexer (DPX), 13 Transmitter (TX), 14 Receiver (RX), 15 Synthesizer (SYN), 2 Controller, 21 RO
M, 22: RAM, 23: Baseband section (B
B), 3 ... input / output unit, 31 ... camera (CA)
M), 32: display drive unit (DRV), 32: display unit (LCD), 34: microphone (MIC), 35
..Speaker, 36... Key input unit (KEY), 37... Vibrator (VIB), 3
8 ... SOUNDER, 4 ... Power supply unit, 41 ... Power supply (PS), 42 ... Charging circuit (CHG), 43 ... Battery (BAT)

Claims (4)

[Claims] A wireless communication terminal connected to a wireless communication system that simultaneously communicates with a plurality of communication terminals, wherein an incoming call from a first communication terminal is received and a second
Receiving a call request to the second communication terminal, the mobile communication system sends a call request to the second communication terminal to the wireless communication system to which the own terminal is connected, and the first communication terminal and the second communication terminal A wireless communication terminal comprising: a control unit for setting a state in which a call can be made with the wireless communication terminal. 2. A storage unit for storing a telephone number of a communication partner, wherein the control unit retrieves a telephone number of a second communication terminal from the storage unit,
The wireless communication terminal according to claim 1, further comprising a search unit that notifies the first communication terminal of a search result. 3. An incoming call received from the first communication terminal,
In a wireless communication terminal connected to a wireless communication system capable of transferring data to a second communication terminal, when receiving a call from the first communication terminal and receiving a call request to the second communication terminal, the terminal is connected. Control means for making a call request to a second communication terminal to the wireless communication system to be made, so that a call can be made between the first communication terminal and the second communication terminal. A wireless communication terminal comprising: 4. A storage means for storing a telephone number of a communication partner, wherein the control means retrieves a telephone number of a second communication terminal from the storage means,
4. The wireless communication terminal according to claim 3, further comprising a search unit that notifies the first communication terminal of a search result.