JP4698433B2 - Wireless communication terminal and program - Google Patents

Description

  The present invention relates to a wireless communication terminal and a program that improve a call success rate by repeating a call connection operation.

  In the mobile radio communication system, as shown in FIG. 11, a radio section signal system is defined by layers 1 to 3 conforming to the OSI reference model. Specifically, in layer 1 (physical layer), conditions related to physical connection / transmission (for example, use frequency, transmission output, modulation / demodulation method or access method) are defined. Further, in layer 2 (data link layer), a process for identifying a mobile terminal with which the base station wants to communicate and enabling correct data exchange with the mobile terminal (message assembly, disassembly, error correction, retransmission request, etc.) ). Further, in layer 3 (network layer), message transmission / reception (call connection at the time of outgoing / incoming calls) and line control (line monitoring, call termination processing) are defined.

  In such a mobile radio communication system, when a call request or an incoming response cannot be transmitted from the mobile terminal to the network side, a call request or an incoming response having the same contents is transmitted from the mobile terminal to the network side a specified number of times in advance. Patent Document 1 discloses a method of retransmitting a call request or incoming response from the mobile terminal to the network side if control information corresponding to the call request or incoming response is not received for a certain period of time after transmitting the call request or incoming response. .

  Further, Patent Document 2 uses a simple protocol that does not have a retransmission control function in Layer 2, and handles the failure on the user network interface and ensuring reliability of information transfer by using the Layer 3 retransmission function. Thus, there has been disclosed an exchange that performs terminal control at a low line cost by reducing the processor load of the layer 2 control and the amount of hardware.

JP-A-9-266593 JP-A-5-122278

  In a mobile radio communication system, incoming information is reported from the network side (base station) to the mobile terminal in order to receive a call, but if the incoming response from the mobile terminal cannot be obtained due to the reception status or other reasons, the network side The (base station) is not re-called to avoid wasting the line. For this reason, the mobile terminal that has received the incoming call notification retransmits the incoming call response at layer 2 as in the technique disclosed in Patent Document 1, but the network side (base station) is caused by factors such as the radio wave environment. However, if reception of the incoming call response in layer 2 fails, the mobile terminal is not connected to the network side (base station) and cannot receive an incoming call. In other words, there is a problem that it is impossible to improve the incoming call success rate on the mobile terminal side.

  The technique disclosed in Patent Document 2 is such that the network side (switch) uses the layer 3 retransmission function to ensure a failure on the user network interface and reliability of information transfer. However, there is a problem that the success rate of incoming calls cannot be improved.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a wireless communication terminal and a program capable of improving the incoming call success rate.

In order to achieve the above object, according to the first aspect of the present invention, a receiving means for receiving call information including a called party number and a calling party number from a radio base station, and the call information received by the receiving means are included in the call information. When the incoming call is detected based on the called party number, the incoming call response means indicating that the incoming call has been detected is transmitted to the radio base station, and the incoming call response means transmits the incoming call response information. If the delivery confirmation information indicating that the incoming call response information has been received cannot be obtained from the radio base station, the caller makes a call to the caller number included in the call information received by the receiving means. And an interrupt call means for interrupting the call to the side .

In the invention of claim 2 that is dependent on the claim 1, wherein the call waiting means, must contain the caller number to the call information received by the receiving means, to terminate the incoming process It is characterized by.

In the invention according to claim 3 subordinate to claim 1 , the storage means for storing the telephone number and the information to be retransmitted indicating whether or not to make a return call in association with each other, the storage means received by the receiving means Extracting means for extracting retransmission target information corresponding to a caller number included in the call information from the storage means, wherein the call waiting means transmits the incoming call response information transmitted by the incoming call response means. Is not obtained from the radio base station, and the caller number is a target to be called back based on the retransmission target information extracted by the extraction means, The caller is called and the call is interrupted to the caller.

In the invention according to claim 4 subordinate to claim 1 , the storage means stores the telephone number, the information to be retransmitted indicating whether or not to make a return call, and the special code, and the receiving means Extraction means for extracting information to be retransmitted and a special code corresponding to a caller number included in the received call information from the storage means, and the call waiting means is transmitted by the incoming call response means. Delivery confirmation information indicating that the received call response information has been received is not obtained from the radio base station, and the caller ID is returned based on the retransmission target information extracted by the extraction means. When the call is a target to be transmitted, the special code extracted by the extraction means is added to the caller number to make a call.

In a fifth aspect of the present invention, a computer receives a call information including a callee number and a caller number from a radio base station, and a callee number included in the call information received by the reception function. When the incoming call is detected based on the incoming call response function, the incoming call response function for transmitting the incoming call response information indicating that the incoming call has been detected to the radio base station, and the incoming call response function transmitted by the incoming call response function. When delivery confirmation information indicating that response information has been received cannot be obtained from the radio base station, a call is made to the caller number included in the call information received by the reception function and the call is allocated to the caller. It is a program for realizing an interrupt call function to be inserted.

According to the first and fifth aspects of the present invention, when call information including a called party number and a caller number is received from a radio base station, and an incoming call is detected from the received call information, an incoming call response is made. If delivery confirmation is not obtained from the radio base station for the incoming call response, the caller number included in the received call information is called and the call is interrupted to the caller side. Can be planned.

According to the second aspect of the present invention, if the caller ID is not included in the call information, the incoming call process can be terminated.

According to the third aspect of the present invention, the telephone number and the retransmission target information indicating whether or not to make a return call are stored in association with each other, the delivery confirmation information cannot be obtained from the radio base station, and the call information If the caller ID obtained from the caller is the target to call back, the caller ID is called and the call is interrupted to the caller, so when the delivery confirmation information cannot be obtained from the radio base station It is possible to specify in advance whether or not to make a return call to the caller number obtained from the call information.

According to the invention described in claim 4 , the telephone number, the retransmission target information indicating whether or not to make a return call, and the special code are stored in association with each other, and the delivery confirmation information cannot be obtained from the radio base station, And when the caller ID obtained from the call information is a target to be returned, when a call is made with a special code added to the caller ID, delivery confirmation information cannot be obtained from the radio base station In addition, it is possible to specify in advance whether or not to make a return call to the caller number obtained from the call information, and to obtain a service corresponding to a special code provided by the communication carrier when making a return call. Can be specified in advance.

Embodiments of the present invention will be described below with reference to the drawings.
A. First Embodiment (1) System Configuration FIG. 1 is a block diagram showing a configuration of a mobile radio communication system to which a radio communication terminal according to the present invention is applied. In the system shown in this figure, a call from the originating wireless terminal MS is sent to the originating exchange MSC via the location-registered originating base station BS. In response to the call, the originating exchange MSC calls the terminating exchange MSC based on the called number (subscriber number) and location registration information inquired from the subscriber registration server. The terminating exchange MSC calls the terminating wireless terminal MS via the terminating base station BS, and when the terminating wireless terminal MS responds to the incoming call in response, the link between the originating exchange MSC and the terminating exchange MSC is established. After establishing, a call is made between the originating wireless terminal MS and the terminating wireless terminal MS.

(2) Configuration of Radio Communication Terminal 100 FIG. 2 is a block diagram showing the configuration of the radio communication terminal 100. The wireless communication terminal 100 has, for example, a folding open / close type main body structure, and a main body case (not shown) includes a transmission / reception antenna 2, a sound generating speaker 3, a color liquid crystal panel, and the like. Unit 4, key input unit 5, microphone 6 for voice input, memory card 7 that can read and write data with a removable storage medium, camera 8 that captures an image, speaker 9 that notifies an incoming call, and vibration notification A vibrator 10 is provided.

  The key input unit 5 is provided with various dedicated switches and function switches to which various functions are assigned. As a typical dedicated switch, a power switch, an off-hook / on-hook switch that is operated when a call is started / line is disconnected, and the like are provided. The wireless transmission / reception unit 11 amplifies the high-frequency signal received via the antenna 2 and outputs the amplified high-frequency signal to the next-stage wireless signal processing unit 12, while high-frequency amplifying the transmission signal output from the wireless signal processing unit 12. To send.

  The radio signal processing unit 12 demodulates the high frequency signal amplified by the radio transmission / reception unit 11 and generates a transmission signal obtained by modulating transmission data supplied from the control unit 13. The control unit 13 sends and receives commands and data via the system bus to control the entire apparatus. The operation of the control unit 13 according to the gist of the present invention will be described in detail later. The subscriber information storage unit 14 stores a call history, an incoming call history, etc. in addition to its own telephone number.

  The system ROM 15 stores various screen data for forming a standby screen in addition to the program executed by the control unit 13. The program executed by the control unit 13 includes an incoming call process and a response transmission process which will be described later. The memory 16 includes a work area for temporarily storing various register / flag data used for processing of the control unit 13, a mail area for storing a mail address and transmission / reception mail, and an image data area for storing imaging data supplied from the camera 8. .

  The voice signal processing unit 17 D / A converts voice data during a call into a voice signal and generates sound from the speaker 3, or A / D converts a voice signal output from the microphone 6 into voice data and controls the control unit 13. Or type in The driver 18 drives an LED (light emitting element), a speaker 9 for notification of incoming calls, and a vibrator 10 included in the camera 8. The driver 19 drives the display unit 4 in accordance with an instruction from the control unit 13. The driver 20 reads / writes data from / to the memory card 7 according to instructions from the control unit 13. The memory card 7 includes an imaging data area for storing imaging data transferred from the image data area of the memory 16 as an image file in response to an instruction from the control unit 13. The input / output interface 21 exchanges data with an external device connected by a serial interface such as a USB cable under the control of the control unit 13.

(3) Operation Next, with reference to FIG. 3 to FIG. 5, the incoming call response sequence of the radio communication terminal 100 and the operation of the incoming call process and the response transmission process executed by the radio communication terminal 100 based on this incoming call response sequence will be described. To do.

a. Incoming Response Sequence FIG. 3 is a sequence diagram showing an incoming response sequence. In accordance with a call message generated by the called exchange MSC in response to a call from the caller-side radio communication terminal 100, the callee-side base station BS sends call information and broadcast information including the called number to the callee-side radio communication terminal 100. To do. The broadcast information includes, in addition to response transmission control information that specifies an incoming call response mode in layer 2, retransmission control information (time and number of times) that specifies a retransmission control mode in layer 3 that is performed when an incoming call response fails in layer 2 )including.

  In the radio communication terminal 100 on the called side, an incoming call response is executed in layer 2 according to the response transmission control information included in the broadcast information. If the incoming call response fails, the layer 3 performs retransmission control so that the incoming call response is repeatedly executed a predetermined number of times within a predetermined time specified by the retransmission control information. When the call setup is completed by an incoming call response that is repeated a predetermined number of times within a predetermined time in this manner, the receiving base station BS sends a response message to the receiving side exchange MSC and also sends a delivery confirmation notification Ack to the receiving side radio communication terminal 100. Is sent out. Upon receiving the delivery confirmation notification Ack, the receiving-side wireless communication terminal 100 finishes the incoming call response sequence and proceeds to line connection processing.

b. Operation of Incoming Processing Next, the operation of incoming processing performed at Layer 3 will be described with reference to FIG. In the wireless communication terminal 100 in the standby state, the control unit 13 executes the incoming call process shown in FIG. 4, advances the process to step SA1, and obtains call information including the called number. Subsequently, in Step SA2, it is determined whether or not the called number included in the acquired call information matches the own telephone number, that is, whether or not there is an incoming call. If the incoming call is not received, the determination result is “NO”, the process is returned to step SA1, and the apparatus waits in a standby state.

  On the other hand, if the incoming number included in the acquired call information matches the own telephone number, the determination result in step SA2 is “YES”, and the process proceeds to step SA3. In step SA3, response transmission control information included in the broadcast information received together with the call information is acquired. The response transmission control information that specifies the incoming call response mode in layer 2 includes a parameter ACC_TMO that represents the time to wait for a reception response from the base station, PROBE_BKOFF that represents the maximum time for randomly delaying the transmission timing of the incoming call response, It consists of a parameter MAX_RSP_SEQ indicating the number of times that power control is re-executed from the beginning and retransmitted, and a parameter NUM_STEP that indicates the number of times the incoming call response is retransmitted while performing power control. The response transmission control information is used in response transmission processing (described later) performed in layer 2.

  Next, in step SA4, retransmission control information (number of times and time) included in the broadcast information received together with the call information is acquired. Then, the process proceeds to step SA5 to start a monitoring timer. The monitoring timer is a timer for monitoring whether the time specified by the retransmission control information has been reached. Subsequently, in step SA6, a response transmission process (described later) for performing an incoming call response in layer 2 based on the response transmission control information acquired in step SA3 is executed. Next, in step SA7, it is determined whether or not a delivery confirmation notification has been received from the called base station BS in the layer 2 response transmission process executed in step SA6, that is, whether or not the incoming call response has been successful.

  If the delivery confirmation notification cannot be received and the incoming call response fails, the determination result in Step SA7 is “NO”, and the flow proceeds to Step SA8. In step SA8, it is determined whether or not the response transmission process performed in layer 2 has been executed up to the number of times specified by the retransmission control information. If it has not been executed up to the number of times specified by the retransmission control information, the determination result is “NO”, and the flow proceeds to Step SA9. In step SA9, it is determined whether or not the time counted by the monitoring timer has exceeded the time specified by the retransmission control information, that is, whether or not a predetermined time specified by the retransmission control information has elapsed. If the predetermined time specified by the retransmission control information has not elapsed, the determination result is “NO”, and the process returns to step SA6.

  Thereafter, the response transmission process of step SA6 is repeatedly executed for the number of times specified by the retransmission control information within a predetermined time specified by the retransmission control information until the incoming call response is successful. If the incoming call response is successful in this process, the determination result in step SA7 is “YES”, and the incoming call response sequence is terminated and the process proceeds to line connection processing. On the other hand, when the predetermined time specified by the retransmission control information is exceeded in the above process, or when the response transmission process of step SA6 is repeatedly executed for the number of times specified by the retransmission control information, the above steps SA8 and SA9 are performed. The determination result is “YES”, and the present process ends.

c. Response Transmission Processing Operation Next, the response transmission processing operation performed in the layer 2 will be described with reference to FIG. When this process is executed via step SA6 (see FIG. 4) of the incoming call process described above, control unit 13 proceeds to step SB1 shown in FIG. 5 and initializes transmission power. Subsequently, in step SB2, the incoming call response is transmitted with the initially set transmission power. Next, in step SB3, reception processing for receiving a delivery confirmation notification from the receiving base station BS is executed in response to the incoming response transmission. Next, in step SB4, it is determined whether or not a delivery confirmation notification is received in the reception process of step SB3.

  If the delivery confirmation notification has not been received, the determination result in Step SB4 is “NO”, and the flow proceeds to Step SB5. In step SB5, it is determined whether or not the response waiting time specified by the parameter ACC_TMO has elapsed since the response transmission time in step SB2. The parameter ACC_TMO is response transmission control information acquired in step SA3 (see FIG. 4) of the incoming call processing described above. If the response waiting time has not elapsed, the determination result is “NO”, and the process returns to step SB3 again to execute a reception process for receiving a delivery confirmation notification.

  If the delivery confirmation notification cannot be received even after the response waiting time specified by the parameter ACC_TMO has elapsed since the response transmission time, the determination result in Step SB5 is “YES”, and the process proceeds to Step SB6. In step SB6, it is determined whether or not (NUM_STEP + 1) response transmission has been repeated by increasing the transmission power, that is, whether or not the response transmission of the number of retransmissions specified by the parameter NUM_STEP has been performed. If the response transmission of the number of retransmissions specified by the parameter NUM_STEP is not performed, the determination result is “NO”, the process proceeds to step SB10, and the transmission power is set to be increased. In step SB11, after waiting for the transmission timing delay time specified by the parameter PROBE_BKOFF, the process returns to the above-described step SB2 to perform response transmission with increased transmission power.

  On the other hand, if the response transmission of the number of retransmissions specified by the parameter NUM_STEP is performed, the determination result in Step SB6 becomes “YES”, and the process proceeds to Step SB7. In step SB7, the transmission power is initialized, and it is determined whether or not response transmission for the number of retransmissions specified by the parameter MAX_RSP_SEQ has been repeated. If the number of retransmissions specified by the parameter MAX_RSP_SEQ has not been repeated, the determination result is “NO”, the process proceeds to step SB8, and the transmission power is set to be increased. In step SB9, after waiting for the transmission timing delay time specified by the parameter PROBE_BKOFF, the process returns to the above-described step SB2 to perform response transmission with increased transmission power.

  In this way, if the delivery confirmation notification is received from the receiving base station BS in the process of repeating the incoming call response according to the response transmission control information (ACC_TMO, PROBE_BKOFF, MAX_RSP_SEQ, NUM_STEP), the determination result in the above step SB4 becomes “YES”. Thus, the present process ends and the process returns to the above-described incoming call process (see FIG. 4). On the other hand, if the delivery confirmation notification is not received even if the incoming call response is repeated in accordance with the response transmission control information, the determination result in the above step SB7 is “YES”, and the above-described incoming call processing is completed after completing this processing. Return to FIG.

  As described above, in the first embodiment, when receiving the call information and the broadcast information including the called number, the radio communication terminal 100 executes the incoming call response in the layer 2 according to the response transmission control information included in the broadcast information. If the first incoming call response fails, the incoming call response performed in layer 2 is repeatedly executed a predetermined number of times specified by the retransmission control information within a predetermined time specified by the retransmission control information included in the broadcast information. Since retransmission control is performed at Layer 3, it is possible to improve the incoming call success rate.

  In addition, since the layer 2 incoming response is retransmitted in layer 3 according to the time and number of times specified in the retransmission control information included in the broadcast information, the time and number of times specified in the retransmission control information are set to the urgent level of incoming calls. If the level is changed according to the importance level, the incoming call response mode of the wireless communication terminal 100 can be changed according to the urgent level and the importance level of the incoming call.

B. Second Embodiment Next, a second embodiment will be described. In the following, first, the incoming call response sequence according to the second embodiment will be described with reference to FIG. 6, and then the operation of the originating side terminal process executed by the originating side radio communication terminal 100 with reference to FIGS. 7 to 8 and The operation of the incoming terminal processing executed by the incoming radio communication terminal 100 will be described.

(1) Incoming Response Sequence FIG. 6 is a sequence diagram showing an incoming response sequence according to the second embodiment. As shown in this figure, when the originating wireless communication terminal 100 makes a call, the originating exchange MSC sends a call request to the terminating exchange MSC accordingly. The called exchange MSC sends a call message to the called base station BS in accordance with a call request from the calling exchange MSC. The called base station BS sends the call information and broadcast information to the called radio communication terminal 100 in accordance with the call message. The call information includes a caller number and a called number. Further, the broadcast information includes response transmission control information that specifies an incoming call response mode in layer 2.

  Radio communication terminal 100 (incoming radio communication terminal MS) that has recognized the incoming call based on the call information executes an incoming call response in layer 2 in accordance with the response transmission control information included in the broadcast information. If the incoming call response fails, a call is made to the caller number included in the call information. In accordance with the outgoing call response from the incoming call base station BS corresponding to this outgoing call, the incoming call radio communication terminal MS calls the user by ringing. Then, when a call channel is assigned from the receiving base station BS and a connection is established between the receiving wireless communication terminal MS and the receiving base station BS, an MS is transmitted from the receiving base station BS to the receiving switch MSC. Further, a call request is sent from the terminating exchange MSC to the originating exchange MSC. Then, in response to a user response (off-hook operation), an interrupt call starts from the called side to the calling side.

(2) Operation of Originating Terminal Processing Next, the operation of the originating terminal processing executed by the originating radio communication terminal 100 will be described with reference to FIG. First, when a call is made in step SC1 shown in FIG. 7, a ringing tone is output in step SC2. Then, in step SC3, it is determined whether or not the terminal is connected to the incoming wireless communication terminal 100. If the connection is established, the determination result is “YES”, and the known incoming call processing is continued.

  On the other hand, if connection to the incoming wireless communication terminal 100 is not possible, the determination result in step SC3 is “NO”, and the flow proceeds to step SC4. In steps SC4 to SC7, an interruption call from the incoming side is waited while announcing that the destination is out of the service area until a predetermined time elapses. If the predetermined time has elapsed during the standby of steps SC4 to SC7 or if the user performs an on-hook operation of pressing the call end button, the determination result of either step SC5 or step SC6 is “YES”. Then, the process proceeds to step SC10, the cutting process is executed, and this process is finished.

  On the other hand, if there is an interrupt call from the incoming side during the standby of steps SC4 to SC7, the determination result in step SC7 is “YES”, and the flow proceeds to step SC8. Then, in steps SC8 to SC9, a call is made until an on-hook operation for pressing the end of the call is performed. When the on-hook operation is performed, the determination result in step SC9 is “YES”, and the disconnection process in step SC10 is executed to Finish the process.

(3) Operation of incoming terminal processing Next, the operation of incoming terminal processing executed by the incoming wireless communication terminal 100 will be described with reference to FIG. First, in step SD1 shown in FIG. 8, the call information including the called number is acquired, and in the subsequent step SD2, whether the called number included in the acquired call information matches the own telephone number, that is, the incoming call is received. Determine the presence or absence. If no incoming call is received, the determination result is “NO”, the process is returned to step SD1, and the apparatus waits in a standby state.

  On the other hand, when the incoming call number included in the acquired call information matches the own telephone number, the determination result in step SD2 is “YES”, and the process proceeds to step SD3. In step SD3, response transmission control information included in the broadcast information received together with the call information is acquired. The response transmission control information that specifies the incoming call response mode in layer 2 includes a parameter ACC_TMO that represents the time to wait for a reception response from the base station, PROBE_BKOFF that represents the maximum time for randomly delaying the transmission timing of the incoming call response, It consists of a parameter MAX_RSP_SEQ indicating the number of times that power control is re-executed from the beginning and retransmitted, and a parameter NUM_STEP that indicates the number of times the incoming call response is retransmitted while performing power control. The response transmission control information is used for response transmission processing executed in step SD5 described later.

  Next, in step SD4, a caller number is acquired from the call information. In step SD5, a response transmission process (see FIG. 5) for performing an incoming call response in layer 2 based on the response transmission control information acquired in step SD3 is executed. Subsequently, in step SD6, it is determined whether or not a delivery confirmation notification has been received from the called base station BS, that is, whether or not the incoming call response has been successful. If the incoming call response is successful, the determination result is “YES”, and the known incoming call processing is continued.

  On the other hand, when the delivery confirmation notification cannot be received and the incoming call response fails, the determination result in step SD6 is “NO”, and the process proceeds to step SD7. In step SD7, a call is made to the caller number acquired in step SD4. Subsequently, in steps SD8 to SD10, the user waits for an off-hook operation in which the user presses the call start button while calling the terminal user by ringing until a predetermined time elapses. If the off-hook operation is not performed even after a predetermined time has elapsed while waiting for these steps SD8 to SD10, the determination result in step SD9 becomes “YES”, and the process proceeds to step SD14 to execute the disconnection process and execute this process. Finish.

  On the other hand, if the user performs an off-hook operation in which the user presses the call start button before the predetermined time has elapsed, the determination result in step SD10 is “YES”, the process proceeds to step SD11, and the call is interrupted to the caller side. . Then, in steps SD12 to SD13, a call is made until an on-hook operation for pressing the end of the call is performed. When the on-hook operation is performed, the determination result in step SD13 is “YES”, and the disconnection process in step SD14 is executed. Finish the process.

  As described above, in the second embodiment, the wireless communication on the called side that has received the call information including the caller number and the called number and the broadcast information including the response transmission control information for specifying the incoming call response mode in layer 2 is received. Terminal 100 executes an incoming call response in layer 2 according to the response transmission control information included in the broadcast information. If the delivery confirmation notification from the network side cannot be received for this incoming call response and the incoming call response fails, the caller number obtained from the received call information is called and the call is interrupted to the caller side. For example, it is possible to improve the incoming call success rate when the incoming side is moving at high speed, or when the radio wave reception state instantaneously deteriorates due to fading or the like and the incoming call response fails.

  In the second embodiment, when an incoming call response fails, a call back (call back) is made from the called side to the calling side based on the caller number extracted from the call information. If the call is made as a number non-notification, an incoming call process according to a normal standard is executed.

C. Modified Example Next, a modified example of the second embodiment will be described. In the second embodiment in which a call back is made from the callee side to the caller side based on the caller number extracted from the call information when the incoming call response fails, as shown in FIG. A storage means for storing the information to be retransmitted indicating whether or not to call in association with each other is provided in the subscriber information storage unit 14 (see FIG. 2) of the wireless communication terminal 100. Then, for example, when the radio wave reception state deteriorates instantaneously due to high speed movement or fading, and the incoming call response fails, the retransmission target information of the caller ID is extracted from the storage means, and the extracted retransmission target information is returned. If it is a target to call, it is good also as a mode which calls back to the caller number. In this way, it is possible to specify a caller number for making a return call.

  Further, as shown in FIG. 10, storage means for storing a special code in association with a telephone number and retransmission target information is provided in the subscriber information storage unit 14 (see FIG. 2) of the wireless communication terminal 100, When making a return call, if a call is made with a caller number to which the associated special code is added, a service corresponding to the special code can be received from the communication carrier side.

It is a block diagram which shows the structure of the mobile radio | wireless communications system with which the radio | wireless communication terminal by this invention is applied. It is a block diagram which shows the structure of the radio | wireless communication terminal 100 by 1st Embodiment. It is a sequence diagram which shows the incoming call response sequence by 1st Embodiment. It is a flowchart which shows the operation | movement of the incoming call process of 1st Embodiment. It is a flowchart which shows the operation | movement of the response transmission process of 1st Embodiment. It is a sequence diagram which shows the incoming call response sequence by 2nd Embodiment. It is a flowchart which shows operation | movement of the transmission side terminal process by 2nd Embodiment. It is a flowchart which shows operation | movement of the receiving side terminal process by 2nd Embodiment. It is a figure which shows matching with the telephone number by the modification of 2nd Embodiment, and resending object information. It is a figure which shows matching of a special code with the telephone number and resending object information by the modification of 2nd Embodiment. It is a figure which shows the OSI reference model which prescribes | regulates a radio area signal system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Antenna 3 Speaker 4 Display part 5 Key input part 6 Microphone 7 Memory card 8 Camera 9 Speaker 10 Vibrator 11 Wireless transmission / reception part 12 Wireless signal processing part 13 Control part 14 Subscriber information storage part 15 System ROM
16 Memory 17 Audio Signal Processing Unit 18 Driver 19 Driver 20 Driver 21 Input / Output Interface 100 Mobile Phone

Claims (5)

Receiving means for receiving call information including a called party number and a calling party number from a radio base station;
When an incoming call is detected based on a called party number included in the call information received by the receiving means, an incoming call response information indicating that the incoming call has been detected is transmitted to the radio base station. A response means;
The caller included in the call information received by the reception means when the delivery confirmation information indicating that the call response information transmitted by the call response means has been received cannot be obtained from the radio base station. An interrupt call means for calling a number and interrupting the caller side,
A wireless communication terminal comprising: The call waiting means, must contain the caller number to the call information received by the receiving means, the wireless communication terminal according to claim 1, characterized in that to terminate the incoming call process. Storage means for storing a telephone number and retransmission target information indicating whether or not to make a return call in association with each other;
Extraction means for extracting from the storage means information to be retransmitted corresponding to a caller number included in the call information received by the receiving means;
Further comprising
The interruption call means cannot obtain delivery confirmation information indicating that the incoming call response information transmitted by the incoming call response means has been received from the radio base station, and has been extracted by the extraction means If the caller ID on the basis of the retransmitted information is subject to aliasing call, wireless communication according to claim 1, characterized in that the call interrupt by calling the caller side to the caller number Terminal. Storage means for storing a telephone number, retransmission target information indicating whether to make a return call, and a special code in association with each other;
Extracting means for extracting information to be retransmitted and a special code corresponding to a caller number included in the call information received by the receiving means from the storage means;
Further comprising
The interruption call means cannot obtain delivery confirmation information indicating that the incoming call response information transmitted by the incoming call response means has been received from the radio base station, and has been extracted by the extraction means claim 1, wherein the caller ID on the basis of the retransmitted information when it is subject to aliasing call, characterized in that a call by adding a special code extracted by the extraction unit to the caller number The wireless communication terminal described. On the computer,
A receiving function for receiving call information including a called party number and a calling party number from a radio base station;
When an incoming call is detected based on a called party number included in the call information received by the reception function, an incoming call response information indicating that the incoming call has been detected is transmitted to the radio base station. A response function;
A caller included in the call information received by the reception function when delivery confirmation information indicating that the call response information transmitted by the call response function has been received cannot be obtained from the radio base station. An interrupt call function that calls a number and interrupts the caller.
A program to realize

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