JP2002027549A - Communication network system and its communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication network system wherein a transmitting user can know the state of the existence area of a mobile terminal as a receiving destination without reporting a receiving operation and the transmitting user can instruct the continuation or the suspension of a transmitting operation after its existence position has been grasped. SOLUTION: When the transmitting operation is performed to the mobile communication terminal, the mobile communication terminal temporarily receives a transmission control procedure, and it transmits the acquisition request of information on a receiving station to a high-order network. The high-order network INW7 reserves a transmission-connection control procedure according to the acquisition request, it acquires the area name and the on-the-spot time of the existence area of the mobile communication terminal as the receiving destination, and it reports them to the mobile communication terminal MS1 as a transmitting destination. The terminal MS1 displays the reported information in a display part 15. The transmitting user who confirms the information on the spot inputs the instruction of the continuation of the transmitting operation, it releases the reservation of the transmission control procedure, it resumes the transmission control procedure, it stops the transmission control procedure when the instruction of the stop of the transmitting operation is input, and it is returned to a reception standby state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication network system in which mobile communication networks constructed in a plurality of areas separated from each other in distance are connected via a relay network or an upper network, and a communication terminal thereof.

[0002]

2. Description of the Related Art In recent years, with the promotion of standardization of mobile communication systems, mobile communication networks of the same system have been established not only in various parts of Japan but also in various countries around the world. In recent years, implementation of international roaming by connecting these mobile communication networks to each other via a relay network or an upper network has been studied. If this type of system is realized, a user can use his / her mobile communication terminal by using one identifier (subscriber number) assigned in advance to each terminal or each user, and thereby to move in a plurality of countries and regions. It can be used by connecting to the communication network as it is, which is very convenient.

[0003]

However, on the other hand, when a call is transmitted to the mobile communication terminal, the calling user does not know at all which country or region the mobile communication terminal is located in. For this reason, for example, if the mobile communication terminal is located in another country or region with a time difference, the call may be made during a time period that is not desirable for making a telephone call, such as at midnight. Have been.

The present invention has been made in view of the above circumstances. A first object of the present invention is to allow a calling user to know the state of an area where a mobile communication terminal to be called exists without notifying the incoming call. To provide a communication network system and a communication terminal thereof.

A second object of the present invention is to make it possible for the originating user to designate the continuation or suspension of the transmission as it is, after grasping the situation of the area where the mobile communication terminal which is the destination is located, thereby improving the manner of transmission. To provide a communication network system and a communication terminal thereof.

[0006]

In order to achieve the first object, a first aspect of the present invention is a first and a second aspect of the present invention.
In a communication network system in which communication networks having respective service areas are connected through other communication networks, a communication terminal existing in the first area is provided with a mobile communication terminal existing in the second area. When a call is made, before the incoming call is notified to the mobile communication terminal,
Local information indicating the state of the second area is obtained and reported to the user of the communication terminal of the transmission source.

Therefore, according to the present invention, at the time of originating a call, the originating user does not need to know the location of the called-side mobile communication terminal, but does not perform the incoming call notification operation, and does not perform the incoming call notification operation. , For example, the position or the time can be confirmed.

[0008] On the other hand, in order to achieve the second object, a second invention is directed to a case where a communication terminal located in a first area transmits a call to a mobile communication terminal located in a second area. An outgoing connection procedure for establishing a communication link between the mobile communication terminals is temporarily held before an incoming call is notified to the mobile communication terminal. Notify the user of the original communication terminal. Then, in response to the notification of the local information, when the communication terminal user of the caller inputs an instruction to continue the call, the hold of the call connection procedure is released and the call connection procedure is continued. On the other hand, when the user inputs an instruction to stop calling, the calling connection procedure is stopped.

Therefore, according to the present invention, at the time of calling, the calling user can not only confirm the position or time of the mobile communication terminal on the called side but also input the instruction to continue calling or stop calling as it is, and It is possible to make a call without bothering the user.

The third aspect of the present invention further comprises a function of determining a type of communication requested by the communication terminal of the caller, and a call connection procedure when the communication terminal of the caller requests real-time communication. Is temporarily suspended, and in other cases, the outgoing connection procedure is not suspended.

In this way, in the case of communication requiring real-time communication such as voice communication, for example, the outgoing connection procedure is temporarily suspended, and the local information of the mobile communication terminal on the receiving side is notified. After confirming that there is no problem, the outgoing connection can be continued. For this reason, it is possible to avoid, for example, a problem of calling at midnight or the like.

On the other hand, in the case of communication without real time such as transmission of electronic mail or voice mail, for example, the outgoing connection procedure is executed without being suspended, and transmission of mail or the like is performed. Therefore, in this case, transmission of an e-mail or the like can be completed quickly without checking the situation of the area where the mobile communication terminal on the receiving side exists.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of the present invention relates to a communication network system in which a plurality of mobile communication networks having different areas as service areas are connected via an upper network. When the communication terminal makes a call to the mobile communication terminal, temporarily suspends the outgoing connection procedure, obtains information representing the local situation where the destination mobile communication terminal is located from the upper network, and sends this information to the calling user. Notify. Then, when the calling user who confirms the local information inputs a call continuation instruction, the hold of the call connection procedure is released and the call connection procedure is continued, while if the call user inputs a call stop instruction, , The outgoing connection procedure is stopped.

FIG. 1 shows a first embodiment of a communication network system according to the present invention. This system connects two mobile communication networks MNW1 and MNW2 having service areas to a plurality of areas separated from each other in distance, such as Japan and the United States, via an upper network INW,
By roaming between different mobile communication networks MNW1 and MNW2, mobile communication terminals MS1 and MS2 subscribing to each of the mobile communication networks MNW1 and MNW2 are collectively managed by an upper network INW.

That is, the mobile communication networks MNW1, MNW2
Includes a plurality of base stations BS11 to BS1n and BS21 to BS distributed in a service area (not shown).
2m is connected. These base stations BS11 to BS
1n and BS21 to BS2m each form a wireless zone called a cell. Mobile communication terminals MS1, MS2
Is connected via a radio channel to a base station of the cell in which it is located, and from this base station, the mobile communication network MNW1,
It is connected to the mobile communication terminal of the communication partner via the MNW 2 and further via the upper network INW.

The upper network INW is a mobile communication network MNW1, M
In addition to the connection control function between the NWs 2, it has a mobile communication terminal management function for roaming and a local information notification control function for roaming. The local information notification control function notifies the local information indicating the state of the area where the destination mobile communication terminal is present when a destination station information acquisition request arrives from the source mobile communication terminal during the outgoing connection procedure. I do. The local information includes the name of the area and the local time.

On the other hand, the mobile communication terminals MS1 and MS2 are configured as follows. FIG. 2 is a circuit block diagram showing the configuration.

In FIG. 1, a radio frequency signal transmitted from a base station (not shown) is received by an antenna 1 and then received by a receiving circuit (RX) 3 via an antenna duplexer 2 (DUP).
Is input to In the receiving circuit 3, the radio frequency signal is mixed with the receiving local oscillation signal output from the frequency synthesizer (SYN) 4 and frequency-converted into an intermediate frequency signal. The frequency of the reception local oscillation signal generated from the frequency synthesizer 4 is specified by a control signal SYC from the control unit 12A.

The received intermediate frequency signal is subjected to a quadrature demodulation process in a CDMA signal processing unit 6, and then subjected to a despreading process by a spreading code (PN code) assigned to a reception channel, thereby to obtain a signal according to a data rate. Is converted into demodulated data in a predetermined format. Then, the converted demodulated data is input to the voice code processing unit 7,
Data indicating the data rate of the received data is input to the control unit 12A as the received data rate.

The voice code processing unit 7 controls the demodulated data output from the CDMA signal processing unit 6 with the control unit 12A.
After performing decompression processing according to the reception data rate notified from the base station, decoding processing using Viterbi decoding or the like and error correction decoding processing are performed to reproduce baseband reception digital data.

The PCM code processing section 8 is adapted to output the type of digital voice signal communication (voice communication,
Different signal processing is performed according to data communication. That is, at the time of voice communication, the received digital data output from the voice code processor 7 is PCM decoded and an analog reception signal is output. This analog reception signal is received by the reception amplifier 9.
And amplified by the speaker 10 for amplification.
At the time of data communication, the reception digital data output from the voice code processor 7 is output to the controller 12A. The control unit 12A stores the received digital data in the storage unit 13
To be stored. If necessary, the received digital data is output to a personal computer such as a personal digital assistant (PDA) or a notebook personal computer via an external interface (not shown).

On the other hand, the transmission voice of the speaker during voice communication is input to the microphone 11 and then amplified by the transmission amplifier 18 to an appropriate level. And PCM
After being subjected to the PCM encoding process in the code processing unit 8, it is input to the voice code processing unit 7 as transmission data. Also,
Data output from a personal computer or the like (not shown) or image data input from a camera or the like (not shown) is input to the control unit 12A via an external interface, and voice codes are output from the control unit 12A via the PCM code processing unit 8. Output to the processing unit 7.

At the time of voice communication, the voice code processing unit 7
The energy amount of the input voice is detected from the transmission voice data output from the CM code processing unit 8, and the data rate is determined based on the detection result. Then, the transmission data is compressed into a burst signal having a format corresponding to the data rate, and further subjected to error correction coding processing.
Output to MA signal processing unit 6. Further, at the time of data communication, transmission data that has passed through the PCM code processing unit 8 is
The signal is compressed into a burst signal having a format corresponding to a preset data rate, subjected to an error correction coding process, and output to the CDMA signal processing unit 6. In addition, both the data rates at the time of voice communication and at the time of data communication are notified to the control unit 12A as the transmission data rate.

The CDMA signal processing unit 6 performs a spreading process on the burst signal compressed by the voice code processing unit 7 using a PN code assigned to a transmission channel. A quadrature modulation process is performed on the spread-coded transmission signal, and the quadrature modulation signal is transmitted to a transmission circuit (TX)
Output to 5

The transmitting circuit 5 combines the quadrature modulated signal with a transmitting local oscillation signal generated from the frequency synthesizer 4 and converts the signal into a radio frequency signal. Then, the transmission circuit 5
Based on the transmission data rate notified by the controller 12A, only the effective portion of the radio frequency signal is amplified at a high frequency and output as a transmission radio frequency signal. This transmission circuit 5
The transmission radio frequency signal output from the
, And is transmitted in bursts from the antenna 1 to a base station (not shown).

The input unit 14 is provided with a key group such as a dial key, a transmission key, a power key, an end key, a volume control key, and a mode designation key. Also, the display unit 15
An LCD display for displaying the telephone number of the communication partner terminal and the operation state of the device, as well as received data and the like, and an LED lamp for indicating the charging operation of the battery 16 are provided.
Reference numeral 17 denotes a power supply circuit which generates a predetermined operation power supply voltage Vcc based on the output of the battery 16 and supplies it to each circuit section.

The control section 12A has, for example, a microcomputer as a main control section, and has a function of controlling the above-described voice communication and data communication, and a control function of recording / reproducing call voice data using the storage section 13A. In addition to the above, the control function according to the present invention includes a user interface (I / F) control unit 12a, a transmission control unit 12b, and a receiving station information acquisition unit 12c.

The user I / F control means 12 a
4 to control the input of the operation information from the host 4 and the output of the display information to the display unit 15. In particular, it displays the receiving station information notified from the upper network INW and inputs an instruction to continue / stop transmission by the transmitting user.

The transmission control means 12b executes transmission control in accordance with a predetermined procedure specified in the system in response to a transmission operation by the transmission user. Also, in the case of transmission to a mobile communication terminal, in the transmission control, an acquisition request for receiving station information is transmitted to the upper network, and the transmission control procedure is temporarily suspended. Further, the calling user continues calling /
The transmission control procedure is continued or stopped in response to the input of the stop instruction.

The receiving station information acquisition control means 12c displays on the display unit 15 the receiving station information arriving from the upper network INW during the temporary suspension of the transmission control procedure.

Next, the operation of the system configured as described above will be described. FIG. 3 is a sequence diagram showing the operation procedure. Here, in the system shown in FIG. 1, a case where mobile communication terminal MS1 makes a call to mobile communication terminal MS2 will be described as an example.

In the mobile communication terminal MS1, when the calling user performs a calling operation, the calling request is detected by the user I / F control means 12a and transmitted to the calling control means 12b. When receiving the transmission request, the transmission control unit 12b transmits a transmission signal to the mobile communication network MNW1. When receiving the outgoing signal, the mobile communication network MNW1 determines whether or not the terminal corresponding to the destination address exists in the own network, and if not, transfers the outgoing signal to the upper network INW.

At this time, when the transmission control means 12b transmits the transmission signal, the mobile communication terminal MS1 determines whether or not the destination address is the mobile communication terminal. If the terminal is a mobile communication terminal, the execution of the transmission control procedure is temporarily suspended. Then, the called station information obtaining request is generated by the called station information obtaining means 12c, and the called station information obtaining request is included in the transmission signal and transmitted.

On the other hand, the mobile communication network MNW1 or the upper-level network INW that has received the transmission signal determines whether or not the transmission signal includes a called station information acquisition request. And
If the receiving station information acquisition request is included, the outgoing connection control procedure is temporarily suspended. And the destination mobile communication terminal MS
Information indicating the status of the area where the mobile communication terminal 2 is located, that is, the area name and the local time are acquired from the mobile communication network MNW2 in the area where the mobile communication terminal MS2 of the destination is located. Then, the obtained area name and local time are notified to the requesting mobile communication terminal MS1 as called station information.

When the originating mobile communication terminal MS1 is notified of the called station information from the network in response to the transmission of the called station information acquisition request, the called station information acquiring means 12c controls the called station information by user I / F control. The information is displayed on the display unit 15 via the means 12a. Therefore, the calling user can know the location name and the local time of the destination mobile communication terminal MS2 by looking at the display unit 15.

Now, suppose that the mobile communication terminal MS of the called party is
It is assumed that the local time of the area where 2 is present is midnight, and that the calling user who has confirmed the local time inputs the calling stop instruction through the input unit 14. Then, the transmission stop instruction is detected by the user I / F control unit 12a and transmitted to the transmission control unit 12b. The transmission control means 12b stops the subsequent processing of the transmission control procedure which has been suspended, returns to the standby state, and notifies the mobile communication network MNW1 and the upper network INW of a disconnection signal. Therefore, telephone calls at midnight can be avoided, thereby improving manners.

On the other hand, it is assumed that the local time in the area where the destination mobile communication terminal exists is daytime. In this case, the calling user inputs a calling continuation instruction through the input unit 14. Then, mobile communication terminal MS1 detects this transmission stop instruction by user I / F control means 12a and transmits it to transmission control means 12b. The transmission control means 12b releases the suspension of the transmission control procedure and resumes the execution of the procedure. Therefore,
Thereafter, the outgoing connection control procedure is executed in the mobile communication networks MNW1 and MNW2 and the higher-level network INW, whereby an incoming call is notified to the destination mobile communication terminal MS2. When the user of the mobile communication terminal MS2 performs an incoming call response operation to the incoming call notification, the mobile communication terminal MS1 of the caller originates.
A communication link is established between the mobile communication terminal MS2 and the destination mobile communication terminal MS2.

As described above, in the first embodiment, when an outgoing call operation to a mobile communication terminal is performed, the mobile communication terminal MS1 on the outgoing side temporarily suspends the outgoing call control procedure to the upper network INW. Send a request for receiving station information. Upon receiving the base station information acquisition request, the upper level network INW suspends the outgoing connection control procedure, and then terminates the destination mobile communication terminal MS2.
The local name and the local time of the area where is present are acquired from the mobile communication network MNW2 on the receiving side, and this is notified to the mobile communication terminal MS1 of the transmission source as receiving station information. Mobile communication terminal M
In step S1, the notified receiving station information is displayed on the display unit 15.

Therefore, when a calling user makes a call to a mobile communication terminal, the calling user can confirm the area name and local time of the area where the destination mobile communication terminal exists without notifying the incoming call.

In the first embodiment, when the calling user who confirms the above-mentioned receiving station information inputs a calling continuation instruction, the mobile communication terminal MS1 releases the holding of the calling control procedure and restarts the calling control procedure. When the calling user inputs a call stop instruction, the subsequent execution of the call control procedure in the hold state is stopped, and the call control procedure returns to the standby state.

Therefore, if the situation of the destination mobile communication terminal MS2 is not suitable for making a call, the calling user can stop the call as it is by performing the stop instruction operation. By performing the call continuation operation, the call can be continued without restarting the call operation from the beginning.

(Second Embodiment) According to a second embodiment of the present invention, when a call operation for a mobile communication terminal is performed, the type of communication application desired by the caller is determined based on the type of communication application desired by the caller. It is determined whether the communication requires a real-time property or a communication that does not require the real-time property such as e-mail transmission. If the communication does not require the real-time property, the call control procedure is executed as it is. If the communication requires the real-time property, the call control procedure is temporarily suspended and the procedure for acquiring the receiving station information is executed. Some of them are

FIG. 4 is a circuit block diagram showing a configuration of a mobile communication terminal used in the communication network system according to the present invention. 2, the same parts as those in FIG. 2 are denoted by the same reference numerals, and detailed description is omitted. Also, the configuration of the communication network system is the same as that of FIG. 1, and a description thereof will be omitted.

In FIG. 4, the control unit 12B has a user interface (I / I / O) as a control function according to the present invention.
F) It includes a control unit 12a, a transmission control unit 12d, an application type determination unit 12e, and a receiving station information acquisition unit 12c.

Among them, the application type determining means 1
2e determines, from the type of communication application desired by the calling user, whether the communication requires real-time property such as voice communication or communication that does not require real-time property such as e-mail transmission.

The transmission control means 12d executes transmission control in response to a transmission operation by the transmitting user. At this time, in the case of a call destined for a mobile communication terminal, if the communication application desired by the calling user is a communication that does not require real-time properties based on the determination result of the application type determination means 12e, Perform outgoing call control procedures. On the other hand, if the communication application desired by the calling user is a communication requiring real-time processing, the calling control procedure is temporarily suspended and the incoming call information acquisition control means 12
c causes the receiving station information to be obtained. Further, in response to the input of the transmission continuation / stop instruction by the transmission user, the transmission control procedure is continued and stopped.

Next, the operation of the system configured as described above will be described. FIG. 5 is a sequence diagram showing the operation procedure. Note that, also in the present embodiment, the mobile communication terminal MS1 in the system shown in FIG.
A description will be given of an example in which a call is transmitted to the second party.

In the mobile communication terminal MS1, when the calling user performs a calling operation, the calling request is detected by the user I / F control means 12a and transmitted to the calling control means 12d. Upon receiving the transmission request, the transmission control unit 12d inquires of the application type determination unit 12e about the type of the communication application. The application type determining means 12e determines the type of the communication application based on the information included in the transmission control signal, and returns a result of the determination to the transmission control means 12d.

When the type of the communication application is communication that does not require real-time transmission, such as e-mail transmission, the transmission control means 12d executes the transmission control procedure as it is. Therefore, in this case, a normal outgoing connection control procedure is executed in the mobile communication networks MNW1 and MNW2 and the upper network INW, thereby establishing a communication link with the destination mobile communication terminal MS2. Transmission becomes possible.

On the other hand, if the type of the communication application is a communication that requires real-time characteristics such as voice communication, the transmission control means 12d temporarily suspends the transmission control procedure, and 12c executes a receiving station information obtaining procedure. Incoming station information acquisition means 1
2c generates a called station information acquisition request and transmits the called station information acquisition request included in the transmission signal.

The mobile communication network MNW receiving the transmission signal
1 or the upper network INW determines whether or not this outgoing signal includes a called station information acquisition request. Then, if the receiving station information acquisition request is included, the outgoing connection control procedure is temporarily suspended. Then, the information indicating the state of the area where the destination mobile communication terminal MS2 is located, that is, the area name and the local time are obtained from the mobile communication network MNW2 in the area where the destination mobile communication terminal MS2 is located. Then, the obtained area name and local time are notified to the requesting mobile communication terminal MS1 as called station information.

When the originating mobile communication terminal MS1 is notified of the called station information acquisition request by the upper level network INW and receives the called station information, the called station information acquiring means 12c transmits the called station information to the user I / O. It is displayed on the display unit 15 via the F control means 12a. Therefore, the calling user can see the display unit 15 and see the destination mobile communication terminal MS2.
You can know the local name and local time where exists.

Now, suppose the mobile communication terminal MS of the called party
It is assumed that the local time of the area where 2 is present is midnight, and that the calling user who has confirmed the local time inputs the calling stop instruction through the input unit 14. Then, the transmission stop instruction is detected by the user I / F control unit 12a and transmitted to the transmission control unit 12d. The transmission control means 12d stops the subsequent processing of the transmission control procedure which has been suspended, returns to the standby state, and notifies the mobile communication network MNW1 and the upper network INW of a disconnection signal. Therefore, late-night telephone calls can be avoided, thereby maintaining good manners.

On the other hand, the destination mobile communication terminal MS2
Suppose that the local time in the area where exists is daytime. In this case, the calling user inputs a calling continuation instruction through the input unit 14. Then, the mobile communication terminal MS1 detects this transmission stop instruction by the user I / F control means 12a and transmits it to the transmission control means 12d. The transmission control means 12d releases the suspension of the transmission control procedure and resumes the execution of the procedure. Therefore, the mobile communication networks MNW1 and MNW2 and the upper network I
The outgoing connection control procedure is executed in the NW, whereby the incoming call is notified to the mobile communication terminal MS2 of the destination. Then, when the user of the mobile communication terminal MS2 performs an incoming call response operation to the incoming call notification, a communication link is established between the mobile communication terminal MS1 of the transmission source and the mobile communication terminal MS2 of the called destination, and thereafter, a user-to-user connection is established. Makes voice communication possible.

As described above, in the second embodiment, the communication application type is determined at the time of starting the transmission control procedure in the mobile communication terminal MS1, and the communication application that does not need real-time communication such as e-mail transmission is determined. In such a case, the call control procedure is executed as it is, and if the communication requires real-time properties such as voice communication, the call control procedure is temporarily suspended and the procedure for acquiring the receiving station information is executed. I have to.

Therefore, in the case of communication that requires real-time properties such as voice communication, the outgoing call connection procedure is temporarily suspended, and the area name and the local time of the area where the receiving side mobile communication terminal MS2 is located are displayed. After confirming from the information that there is no trouble in the call, the outgoing connection can be continued. For this reason, it is possible to avoid a problem that a telephone call is made at midnight, for example.

On the other hand, in the case of communication that does not require real-time transmission, such as when sending an e-mail,
The outgoing connection procedure is executed without being suspended, and the e-mail is transmitted. Therefore, in this case, the transmission of the e-mail can be completed quickly without checking the state of the area where the mobile communication terminal MS2 on the receiving side exists.

(Other Embodiments) In the first and second embodiments, in a state where the destination station information is notified from the upper network INW to the mobile communication terminal MS1 of the transmission source and displayed, the transmission continuation instruction or the transmission termination is performed. In response to the input of the instruction, the continuation processing of the transmission control procedure or the stop processing of the transmission control procedure is executed in response to the input of the instruction. However, the present invention is not limited to this. If no instruction is input after a certain period of time in a state where the receiving station information is notified and displayed from the upper network INW to the mobile communication terminal MS1 of the transmission source, the transmission control procedure is performed. May be automatically stopped to return to the standby state. When this function is added, the function of the present invention can be used for the purpose of confirming the location of any mobile communication terminal.

Further, in each of the above embodiments, the case where the mobile communication terminal MS1 is used as the communication terminal of the transmission source has been described as an example. However, the present invention can be similarly implemented when a wired communication terminal is used. .

In addition, the number and connection configuration of the communication networks constituting the communication network system, the configuration of the communication terminals and the notification control procedure and contents of the receiving station information notifying means provided in the network, transmission control means, and receiving station information acquisition The control procedure of the means and the application type determination means and the contents thereof can be variously modified without departing from the scope of the present invention.

[0061]

As described above in detail, in the first invention, a communication network in which communication networks having service areas of first and second areas separated from each other via a communication network is provided. In the system, when a communication terminal located in the first area makes a call to a mobile communication terminal located in the second area, the second terminal is notified before the mobile terminal is notified of an incoming call. Local information indicating the state of the area is acquired and reported to the user of the communication terminal of the transmission source.

Therefore, according to the first aspect of the invention, there is provided a communication network system and a communication terminal capable of allowing a calling user to know the state of an area where a mobile communication terminal to be called exists without notifying the arrival of the incoming call. can do.

Further, in the second invention, when a communication terminal located in the first area sends a call to a mobile communication terminal located in the second area, an outgoing connection for establishing a communication link between the two terminals is provided. The procedure is temporarily suspended before the notification of the incoming call to the mobile communication terminal, and the local information indicating the state of the second area is acquired during the temporary suspension and reported to the user of the communication terminal of the transmission source. Then, in response to the notification of the local information, when the communication terminal user of the caller inputs an instruction to continue the call, the hold of the call connection procedure is released and the call connection procedure is continued. On the other hand, when the user inputs an instruction to stop calling, the calling connection procedure is stopped.

Therefore, according to the second aspect, after grasping the situation of the area where the mobile communication terminal that is the destination is located, the calling user can directly specify the continuation or cancellation of the calling, thereby making the calling manner A communication network system and a communication terminal with improved communication can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a communication network system according to the present invention.

FIG. 2 is a functional block diagram showing a first embodiment of the communication terminal according to the present invention.

FIG. 3 is a sequence diagram showing a transmission control procedure in the communication terminal and the upper network shown in FIG. 2;

FIG. 4 is a functional block diagram showing a second embodiment of the communication terminal according to the present invention.

FIG. 5 is a sequence diagram showing a transmission control procedure in the communication terminal and the upper network shown in FIG. 4;

[Explanation of symbols]

 INW: Host network MNW1, MNW2: Mobile communication network BS11-BS1n, BS21-BS2m: Base station MS1, MS2: Mobile communication terminal 1: Antenna 2: Antenna duplexer (DUP) 3: Receiving circuit (RX) 4: Frequency synthesizer (SYN) 5 ... Transmission circuit (TX) 6 ... CDMA signal processing unit 7 ... Speech code processing unit 8 ... PCM code processing unit 9 ... Reception amplifier 10 ... Speaker 11 ... Microphone 12A, 12B ... Control unit 12a ... User I / F Means 12b ... Transmission control means 12c, 12e ... Termination station information acquisition means 12d ... Application type determination means 13 ... Storage unit 14 ... Input unit 15 ... Display unit 16 ... Battery 17 ... Power supply circuit 18 ... Transmission amplifier

Claims (8)

[Claims] 1. A communication network system in which communication networks having service areas of first and second areas separated from each other by a distance are connected via another communication network, wherein a communication existing in the first area is provided. When a terminal makes a call to a mobile communication terminal located in the second area, local information indicating the state of the second area is obtained before an incoming call notification is made to the mobile communication terminal, and the caller receives the information. A communication network system comprising local information notification means for notifying a user of the communication terminal of (1). 2. A communication network system in which communication networks having service areas of first and second areas separated from each other by a distance are connected via another communication network, wherein communication existing in the first area is provided. When a terminal makes a call to a mobile communication terminal located in the second area, a call connection procedure for establishing a communication link between the two terminals is temporarily suspended before an incoming call notification is made to the mobile communication terminal. Holding means, and local information notifying means for acquiring local information indicating the state of the second area and notifying the user of the communication terminal of the transmission source while the calling connection procedure is temporarily held by the holding means. In response to the notification of the local information, when the user of the communication terminal of the caller inputs an instruction to continue calling, the hold of the calling connection procedure is released and the calling connection procedure is continued, while the user A communication continuation suspension control means for suspending the outgoing connection procedure when an instruction to suspend transmission is input. 3. The communication according to claim 1, wherein the local information notifying unit acquires at least one of a position and a time of the second area and notifies the user of the communication terminal of the transmission source. Network system. 4. The holding means further has a function of determining a type of communication requested by the communication terminal of the transmission source, and when the communication terminal of the transmission source requests a communication requiring real-time processing. 3. The communication network system according to claim 2, wherein the outgoing connection procedure is temporarily suspended, and otherwise, the outgoing connection procedure is not suspended. 5. Communication used in the first area of a communication network system in which communication networks having service areas of first and second areas separated from each other by distance are connected via another communication network. In a terminal, when a call is transmitted to a mobile communication terminal located in the second area, local information representing a state of the second area is transmitted to the communication network before an incoming call is notified to the mobile communication terminal. A communication terminal, comprising: a local information notifying unit that obtains information from a user and notifies the calling user of the information. 6. Communication used in the first area of a communication network system in which communication networks having service areas of first and second areas separated from each other by distance are connected via another communication network. In the terminal, when a call is transmitted to a mobile communication terminal located in the second area, a call connection procedure for establishing a communication link between the two terminals is temporarily suspended before notification of an incoming call to the mobile communication terminal. And a local information notifying unit that obtains local information indicating the state of the second area from the communication network and notifies the calling user of the status while the calling connection procedure is temporarily held by the holding means. In response to the notification of the local information, an instruction input means for the transmission user to input a transmission control instruction, and when the transmission user inputs an instruction to continue the transmission by this instruction input transmission A call continuation stop control means for canceling the hold of the call connection procedure and continuing the call connection procedure, while canceling the call connection procedure when the caller inputs an instruction to stop the call. Communication terminal. 7. The communication terminal according to claim 5, wherein the local information notifying unit acquires at least one of a position and a time of the second area and notifies the calling user of the position and time. 8. The holding means further has a function of determining a communication type requested by the communication terminal, and temporarily suspends the outgoing connection procedure when the communication terminal requests communication requiring real-time processing. 7. The communication terminal according to claim 6, wherein the outgoing connection procedure is not suspended in other cases.