JP2001145156A - Dual waiting portable telephone terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a duel waiting portable telephone terminal which enables a user to respond to incoming information by temporarily interrupting call, when the user receives the incoming information from another radio base station during the call. SOLUTION: A dual waiting portable telephone terminal is constituted in such a way that, when a second radio wave transmitting-receiving section 5 receives a control signal, while a first radio wave transmitting-receiving section 2 terminal makes radio communication, a control section 8 performs such control that the transmission or transmission and reception of the section 2 is interrupted only for the interrupting time, during which the busy channel with a first radio base station is not cut off. At the same time, the transmission from or transmission and reception from and by the second radio transmitting- receiving section 5 to and from a second radio base station are enabled, only during a prescribed period of time within the interrupting time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for responding to an incoming call during communication in a dual standby portable telephone terminal capable of simultaneously waiting for a plurality of radio base stations.

[0002]

2. Description of the Related Art There are a plurality of systems having different frequency bands and control systems depending on the characteristics of portable telephones and the operating carriers. A mobile phone terminal is prepared for each of these different systems, but a dual standby terminal has multiple wireless transmission / reception functions, so that one mobile phone terminal can realize standby on different wireless systems and connect multiple systems. Make it available.

[0003] In order to further reduce the size of the dual standby terminal, there is a case where a single antenna is used and a plurality of wireless transmission / reception functions share this antenna. Even if the antenna is shared, it is possible to receive a control signal from the wireless base station with each of the plurality of wireless transmission / reception functions. Even if one of the wireless transceivers is transmitting, the other wireless transceiver can receive, but if multiple wireless transceivers transmit at the same time, the transmission signal will be distorted. Is controlled to be performed only by the wireless transmission / reception unit.

[0004]

However, in the portable telephone system, incoming information from the wireless base station is intermittently received, and when an incoming call to the terminal is detected, a response signal is sent to the wireless base station. Is sent. Even if one wireless transmission / reception function receives communication information while another wireless transmission / reception function is constantly transmitting wirelessly in the communication state, the wireless transmission is performed only by a single wireless transmission / reception unit as described above. , The wireless transmission cannot be performed, and the incoming call is ignored. Since there is no response to the incoming signal, the wireless base station assumes that the target terminal is out of the area or has not been turned on, and notifies the source that there is no response from the terminal. For this reason, the dual standby terminal is regarded as being outside the area despite being within the area of the wireless base station.

[0005] In addition, the details of the incoming call information such as the caller ID are generally obtained by responding to the radio base station, so that even if there is an incoming call, the source of the call remains unknown. I will.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem. When receiving incoming information from another radio base station during a call, the present invention temporarily suspends the call and responds to the incoming information. It is an object of the present invention to provide a dual standby mobile phone terminal capable of making a response.

[0007]

The present invention has the following configuration to achieve the above object. A first gist of the present invention resides in a first radio transmission / reception unit capable of receiving a control signal transmitted from a first radio base station and a second radio transmission / reception unit capable of receiving a control signal transmitted from a second radio base station. In a dual standby mobile phone terminal having a wireless transmitting and receiving unit, while receiving a wireless communication with one of the wireless base stations, it is possible to receive a control signal transmitted from the other wireless base station, A control unit is provided for selectively enabling transmission or transmission / reception from the first radio transmission / reception unit to the first radio base station or transmission / reception / transmission from the second radio transmission / reception unit to the second radio base station. The control unit, when the second wireless transmitting / receiving unit receives a control signal during the wireless communication state of the first wireless transmitting / receiving unit,
A dual standby mobile phone terminal is characterized in that it is controlled to a second short-term communication state in which transmission or transmission / reception from the second wireless transmission / reception unit to the second wireless base station can be performed for a predetermined period.

[0008] A second gist of the present invention is that the control unit, when the second wireless transmitting / receiving unit receives a control signal during the wireless communication state of the first wireless transmitting / receiving unit, controls the first wireless transmitting / receiving unit. Transmission or transmission / reception is interrupted for a first interruption time during which the wireless communication line with the first wireless base station is not disconnected, and after the elapse of the first interruption time, the second short-term communication state is released and the first wireless communication is resumed. The dual standby mobile phone terminal according to the first aspect, characterized in that the mobile phone returns to the wireless communication state of the transmission / reception unit.

According to a third aspect of the present invention, the control unit releases the second short-term communication state, and then does not disconnect the wireless communication line with the second wireless base station for transmission or transmission of the second wireless transmission / reception unit. The first wireless transmission / reception unit is controlled to a first short-term communication state in which the first wireless transmission / reception unit is allowed to transmit or receive for a predetermined period of time within the second suspension time while the second short-term communication state is being interrupted. The dual standby mobile phone terminal described in the summary 2 is characterized by repeatedly performing a short-term communication state.

[0010] A fourth aspect of the present invention further comprises a notifying means for notifying the calling number notification, and in the second short-term communication state,
The dual standby mobile phone terminal according to any one of the first to third aspects, wherein at least the calling number information is received and displayed.

According to the first aspect of the present invention, when the second wireless transmitting / receiving unit receives a control signal during the wireless communication state of the first wireless transmitting / receiving unit, the control unit controls to the second short-term communication state. Thus, a response signal can be output to the second wireless base station using the second wireless transmission / reception unit that has received the incoming signal control signal. Therefore, in the wireless communication state, it is possible to prevent the target terminal from being out of the area or not turning on the power and not giving an incorrect notification to the caller. In addition, when there is an incoming call, incoming information such as a caller number can always be obtained, so that it is possible to avoid a situation in which the source is not known even if there is an incoming call during the wireless communication state as in the related art. Similarly, when receiving a control signal of communication state control information instead of incoming information from the second wireless base station during communication with the first wireless base station, , A response signal can be issued, and the control of the communication state and the like can be performed on the first wireless base station by another wireless base station.

According to the invention of the second aspect, the wireless communication is interrupted for the first interruption time during which the wireless communication is not interrupted and the wireless communication is resumed, so that the first wireless base station is regarded as a temporary radio interference and the wireless communication line is disconnected. Call and continue the call.

[0013] According to the invention of the third aspect, both the first wireless transmitting / receiving section that was originally engaged in a call and the second wireless transmitting / receiving section that has received an incoming call can be kept connected. This allows the terminal operator to select which call is to be made.

According to the fourth aspect of the present invention, a notifying means for notifying the calling number is further provided, and in the second short-term communication state,
Since at least the calling number information is received and displayed, the terminal operator can reliably determine whether or not there is an incoming call, and since the calling number information can be visually understood, it is helpful in determining a call selection.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic block diagram of the mobile phone terminal of the present embodiment. The mobile phone terminal according to the present embodiment has two wireless transmission / reception units, which perform dual standby by sharing one antenna. In the present embodiment, two wireless transmission / reception units are prepared since it is assumed that two wireless base stations having different systems wait at the same time. It can also be realized by a wireless transmission / reception unit. When one of the two wireless transmission / reception units is in the transmission state, control is performed so that transmission from the other wireless transmission / reception unit is not performed.

As shown in FIG. 1, a portable telephone terminal according to the present embodiment has an antenna 1 for transmitting and receiving radio waves, first and second antennas.
Wireless transmitting / receiving units 2, 5, first and second modem units 3, 6,
It has first and second wireless communication suspension means 4, 7, a control unit 8, a communication path control unit 9, a notification unit 11, and a memory 12 as a storage medium.

The first and second radio transmission / reception units 2 and 5 are transmission / reception units that output radio transmissions and detect radio waves received from a base station (not shown).

The first and second modulators and demodulators 3 and 6 are composed of a modulator for modulating an output signal into a signal for wireless communication and a demodulator for converting a received signal into a voice signal or the like. 3 modulates and demodulates an output signal from the first wireless transmission / reception unit 2,
The second modulation / demodulation unit 6 modulates / demodulates an output signal from the second wireless transmission / reception unit 5.

The first wireless communication suspending means 4 comprises:
The wireless transmission / reception unit 2 is instructed to suspend the wireless use based on the instruction of the control unit 8, and the second wireless communication suspension unit 7 is configured to wirelessly instruct the second wireless transmission / reception unit 5 based on the instruction of the control unit 8. Instruct the user to discontinue use.

The control unit 8 is a unit that controls the wireless function of the terminal, specifically, the first and second wireless communication suspending units 4 and 7, the communication path control unit 9, and the notification unit 11.

The communication path control section 9 selects which of the two modulation / demodulation sections 3 and 6 the audio signal is to be transmitted based on an instruction from the control section 8 and transmits the signal to and from the audio signal communication path 10. The connection with the selected modem is performed. The notification unit 11 is a notification unit that performs various types of notification according to instructions from the control unit 8. The memory 12 is a storage medium for storing details of incoming information such as calling number information sent from the wireless base station, for example, a semiconductor memory, and stores the incoming information under the control of the control unit 8.

Next, the operation of the dual standby portable telephone terminal will be described. First, when waiting for reception, both the first and second wireless transmission / reception units 2 and 5 are in a state of receiving a control signal from the wireless base station. And the first wireless transmission / reception unit 2
When the control unit 8 detects the incoming call information, the control unit 8 instructs the first wireless transmitting and receiving unit 2 to respond to the wireless base station,
The second wireless transmission / reception unit 5 is instructed to prohibit wireless transmission. Further, the control unit 8 instructs the operation of the modem unit 3 and the communication route control unit 9 to set a route to the modem unit 3. The second
The same operation is performed when the incoming / outgoing information is detected by the wireless transmitting / receiving unit 5, but in this case, the first wireless transmitting / receiving unit 2 is in the wireless transmission prohibited state.

In the dual standby portable telephone terminal of the present embodiment, first and second wireless communication suspending means 4 and 7 are provided so that a wireless transmitting / receiving unit in a communication state can be temporarily stopped. Therefore, when the incoming information is received from the wireless base station on the non-communication side, the first and second wireless communication suspending means 4 and 7 suspend the wireless transmitting and receiving unit in the communication state, and The wireless transmission prohibition state of the wireless transmission / reception unit on the non-communication side is temporarily released to enable transmission of radio waves. Thus, it is possible to respond to the incoming call information received by the wireless communication unit on the non-communication side. This operation will be described with reference to the flowchart of FIG.

FIG. 2 shows a case where new incoming information from a non-communication side radio base station is received during communication, the current communication is suspended, a new incoming signal is responded, and then the original radio base station is returned. 9 is a flowchart illustrating an operation when communication with the server is restarted. First, it is assumed that the first wireless transmission / reception unit 2 is in a communication state (step (hereinafter abbreviated as “S”) 11). At this time, the second wireless transmission / reception unit 5 is in the wireless transmission prohibited state, but is receiving a control signal from the wireless base station and confirming whether there is incoming information (S1).
2).

When the second wireless transmitting / receiving unit 5 receives the incoming call information, the control unit 8 stops the operation of the first wireless transmitting / receiving unit 2 via the wireless communication suspending unit 4 (S13).

After the operation of the first radio transmission / reception unit 2 is stopped, the second radio transmission / reception unit 5 shifts to a communication state (a short-term communication state),
A response signal is transmitted to the wireless base station. The wireless base station notifies the details of the incoming information such as the calling number information by the response signal from the mobile phone terminal.
The incoming information is stored in the memory 12 in the terminal under the control of (S14).

After receiving the details of the incoming call information, the control unit 8
The wireless transmission / reception unit 5 is again shifted to the wireless transmission prohibited state. Also, the operation of the first wireless transmission / reception unit 2 is resumed via the wireless communication suspension unit 4 to return to the original communication state (S1).
5).

Thereafter, the control unit 8 causes the notification unit 11 to display the calling number information, and notifies the terminal user of the occurrence of the incoming call during the call and the caller number (S16). In this case, the occurrence of the incoming call during the call and / or the notification of the caller number may be a notification by voice.

If the second wireless transmission / reception unit 5 is kept in the communication state in S15, it is possible to make a call in response to the incoming call by operating the call key or the like as in the case of a normal incoming call. Since the first wireless transmission / reception unit 2 remains stopped,
The communication that was being performed before the incoming call is disconnected. This is because the wireless base station that is the original communication partner releases the communication path on the network side because it cannot receive the signal from the terminal. Even if there is an incoming call during a call, the present mobile phone terminal simply acquires calling number information and the like, and the original communication is continued. Accordingly, the time during which the control unit 8 stops the operation of the first wireless transmission / reception unit 2 via the wireless communication suspension unit 4 is a short time such that the wireless base station does not release the communication path on the network side. Perform a series of processing. The wireless stop time is managed by the wireless communication suspending means 4.
Is performed, and when it becomes necessary to restart wireless communication, an instruction to forcibly stop the second wireless transmitting / receiving unit 5 can be issued.

FIG. 3 shows that, when receiving the incoming information from the non-communication side radio base station during the communication, the communication is temporarily suspended to respond to the incoming signal, and then the communication with the original radio base station is resumed. FIG. 5 is an operation timing chart of the wireless transmission / reception unit in the case, and S12 to S15 in the drawing indicate state numbers in the flowchart illustrated in FIG. The communication side in FIG. 3 represents the first wireless transmission / reception unit 2, and the non-communication side represents the second wireless transmission / reception unit 5. Since the first wireless transmission unit 2 is in the communication state, the transmission unit and the reception unit on the communication side are both powered on, but the transmission unit on the non-communication side is off and the reception unit on the non-communication side is periodically Is turned on and receives a control signal from the wireless base station. After the second wireless transmitting / receiving unit 5 receives the incoming call information in state S12, the first wireless transmitting / receiving unit 2 stops in state S13. While the first radio transmission / reception unit 2 is stopped, the second radio transmission / reception unit 5 starts operating in state S14, and the state S after the predetermined operation of the second radio transmission / reception unit 5 ends.
At 15, the first wireless transmission / reception unit 2 is turned on and restarted.

In the stop of the state S13, both transmission and reception of the first radio transmission / reception unit 2 are stopped in this embodiment, but it is also possible to take a form in which only the transmission unit is stopped and reception is continued. It is. Also, the second wireless transmission / reception unit 5
After the calling number is displayed, the first wireless transmission / reception unit 2 returns to the normal communication state.
If a three-party call function is supported, it is also possible to have a function of making a call during a call based on the calling number information and shifting to a three-party call state.

Although the above-described embodiment is a process in the case of receiving incoming information from another radio base station during communication, it is also possible to receive communication state control information from another radio base station. When the second wireless transmission / reception unit 5 receives “control information present”, the operation of the first wireless transmission / reception unit 2 is stopped,
By shifting the wireless transmission / reception unit 5 to the communication state (short-term communication state), it responds to an incoming signal and acquires details of control information from another wireless base station. Here, when receiving the control signal of “communication end” as the detailed control information, the control unit 8 makes the first wireless transmission / reception unit 2 based on the control signal of “communication end”.
, And a communication termination control is enabled. For example, when constructing a system for forcibly disconnecting a mobile phone terminal in communication in a place where use of a mobile phone is restricted, such as in a hospital, a mobile phone system having a wide range covered by one wireless base station In this case, it is difficult to perform cutting processing limited to a small area such as a hospital. Therefore, the wireless base station having a narrow coverage is set to be in a dual standby state, and the wireless base station having the narrow coverage is referred to as “communication end”.
May be notified.

Further, in the portable telephone terminal of the present embodiment,
By operating the two wireless transmission / reception units 2 and 5 alternately,
Communication can be performed simultaneously with the two wireless base stations. When an incoming call occurs during communication, the calling number is obtained and displayed in response to the incoming signal, and communication with the two wireless base stations is performed intermittently so that the wireless base station does not release the line. I do. However, since a sufficient data transfer amount is not guaranteed due to intermittent communication, in the present embodiment, whether to invalidate the incoming call or to terminate the original communication is determined by the terminal user's determination operation, and 1 It is assumed that the state is shifted to a communication state with two wireless base stations. Hereinafter, a detailed description will be given with reference to the flowchart shown in FIG. 4 and the operation timing chart shown in FIG.

FIG. 4 shows that, when receiving the incoming information from the non-communication side radio base station during the communication, the communication is temporarily interrupted to respond to the incoming signal, and thereafter, the communication state is transmitted to the two radio base stations. FIG. 5 is a flowchart illustrating an operation when the wireless communication stop state is alternately repeated, and FIG. 5 is an operation timing chart of the wireless transmission / reception units 2 and 5 in that case. In FIG. 5, the wireless unit 1 side represents the first wireless transmitting / receiving unit 2, and the wireless unit 2 side represents the second wireless transmitting / receiving unit 5.

When the first wireless transmission / reception unit 2 is in a communication state (S21) and the second wireless transmission / reception unit 5 receives incoming information (S22), the control unit 8 suspends the first wireless communication. The operation of the first wireless transmission / reception unit 2 is stopped via the means (circuit) 4 (S23). After the operation of the first wireless transmitting / receiving unit 2 is stopped, the second wireless transmitting / receiving unit 5 shifts to a communication state (short-term communication state) and sends a response signal to the wireless base station (S24). The wireless base station notifies the details of the incoming information such as the calling number information by the response signal from the terminal, and receives the information. The control unit 8 stores this information in a semiconductor memory or the like (not shown) in the terminal and notifies the information. The calling number is notified by the unit 11 (S25). Next, the control unit 8 stops the operation of the second wireless transmission / reception unit 5 through the second wireless communication temporary stop unit (circuit) 7 (S26). After the second wireless transmission / reception unit 5 stops, the operation of the first wireless transmission / reception unit 2 is restarted via the first wireless communication temporary stop unit 4 and a signal is transmitted to the wireless base station (short-term communication state). (S27). Since the wireless base station receiving this transmission signal can recognize that the terminal is in a communication state, it is possible to continue communication without releasing the communication path on the network side, as in the case of temporary radio interference. it can. Thereafter, as shown in FIG. 5, by repeating the steps S26 and S27 (short-term communication state) alternately, the communication state with the two wireless base stations is continued.

Next, during the communication, the terminal user interrupts the current communication from the state of the incoming call and makes a call in response to the incoming call.
Select whether to ignore the incoming call and continue the current communication. When the terminal user performs an operation to respond to the incoming call (S28)
Then, the control unit 8 puts the second wireless transmitting / receiving unit 5 into a normal communication state and stops the first wireless transmitting / receiving unit 2 (S29). When stopping the first wireless transmission / reception unit 2, the wireless communication may be stopped immediately or after the disconnection processing with the wireless base station is performed. When the terminal user has not performed an incoming call response operation within a predetermined time, or has performed an operation to instruct continuation of the original communication (S3
At 0), the control unit 8 puts the first wireless transmitting / receiving unit 2 into a normal communication state and stops the second wireless transmitting / receiving unit 5 (S31).

Also, when a text message is notified from another radio base station during communication, the message can be received by setting the communication state to a shorter time than in a voice call.
The confirmation of the operation of the terminal user is omitted, and when the received message is obtained, the process of stopping the wireless transmission / reception unit and displaying the text message on a screen display device (not shown) is performed.

[0038]

As described above, according to the first aspect of the present invention, it is possible to respond to a control signal from the second radio base station generated during communication with the first radio base station. Information can be prevented from being overlooked. Further, by transmitting control information of the communication state instead of the incoming information from the second wireless base station during communication with the first wireless base station, the communication state of the first wireless base station and others can be controlled.

According to the second aspect of the present invention, the communication with the first radio base station is controlled in response to the control signal of the incoming information from the second radio base station generated during the communication with the first radio base station. The response operation to the second wireless base station can be performed without interrupting the communication. As a result, it is possible to receive the calling number information of the incoming call that occurred during the call, and it is possible to broaden the operation options of the terminal user.

According to the invention of the third aspect, the incoming call during call function can be realized without performing control on the exchange side. This allows the terminal operator to select which call is to be made.

According to the invention of the fourth aspect, since the calling number information can be visually understood, it is helpful to determine the call selection, and the function of receiving a text message during communication can be easily realized.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a dual standby mobile phone terminal according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a dual standby mobile phone terminal according to an embodiment of the present invention, when receiving incoming information from another wireless base station during communication, temporarily suspends communication and responds to an incoming signal;
6 is a flowchart illustrating an operation when communication with the original wireless base station is restarted thereafter.

FIG. 3 is an operation timing chart of both wireless transmission / reception units in the operation of FIG. 2;

FIG. 4 is a diagram illustrating a dual standby mobile phone terminal according to an embodiment of the present invention, when receiving incoming information from another wireless base station during communication, temporarily suspends communication and responds to an incoming signal;
9 is a flowchart illustrating an operation when a communication state and a wireless communication suspension state are alternately repeated with respect to two wireless base stations thereafter.

FIG. 5 is a diagram illustrating a dual standby mobile phone terminal according to an embodiment of the present invention, when receiving incoming information from another wireless base station during communication, temporarily suspends communication and responds to an incoming signal;
FIG. 9 is an operation timing chart of the wireless transmission / reception unit when a communication state and a wireless communication stop state are alternately repeated with respect to two wireless base stations.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 1st radio | wireless transmission / reception part 3 1st modulation / demodulation part 4 1st radio | wireless communication temporary stop means (circuit) 5 2nd radio | wireless transmission / reception part 6 2nd modulation / demodulation part 7 2nd radio communication temporary stop means ( Circuit) 8 control unit 9 communication path control unit 11 notification unit 12 memory

Claims (4)

[Claims] 1. A first wireless transmitting / receiving unit capable of receiving a control signal transmitted from a first wireless base station, and a second wireless transmitting / receiving unit capable of receiving a control signal transmitted from a second wireless base station. A dual standby mobile phone terminal that has a function of receiving a control signal transmitted from the other wireless base station while performing wireless communication with the one wireless base station. A control unit for selectively enabling transmission / reception from the transmission / reception unit to the first radio base station or transmission / reception / transmission from the second radio transmission / reception unit to the second radio base station; Transmitting or transmitting or receiving from the second wireless transmitting / receiving unit to the second wireless base station for a predetermined period when the second wireless transmitting / receiving unit receives a control signal during the wireless communication state of the first wireless transmitting / receiving unit To the second short-term communication state that enables Dual standby mobile phone terminal, wherein the door. 2. The control unit, according to claim 1, further comprising: transmitting or transmitting the first wireless transmitting / receiving unit when the second wireless transmitting / receiving unit receives a control signal during a wireless communication state of the first wireless transmitting / receiving unit.
Is interrupted for the first interruption time during which the wireless communication line with the wireless base station is not disconnected, and after the elapse of the first interruption time, the second interruption time elapses.
2. The dual standby mobile phone terminal according to claim 1, wherein the short-term communication state is canceled and the wireless communication state of the first wireless transmission / reception unit is returned again. 3. The control unit, after releasing the second short-term communication state, performs transmission or transmission / reception of the second wireless transmission / reception unit for a second interruption time during which the wireless communication line with the second wireless base station is not disconnected. Suspending and controlling the first wireless transmission / reception unit to be in a first short-term communication state in which the first wireless transmission / reception unit can transmit or receive for a predetermined period within the second suspension time, and switch the second short-term communication state and the first short-term communication state The dual standby mobile phone terminal according to claim 2, wherein the mobile phone terminal is repeatedly executed. 4. The dual device according to claim 1, further comprising a notifying unit for notifying calling number notification, wherein at least the calling number information is received and displayed in the second short-term communication state. Standby mobile phone terminal.