JPH10308969A - Mobile communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid inconvenience that a speech is suddenly interrupted from an opposite party due to a reason of a portable terminal by controlling only a speech channel of the opposite party to be in a holding state when a speech by a PHS side portable terminal is not available. SOLUTION: A speech channel of a portable terminal 1 is connected to an exchange 3 via a base station equipment 2 and the exchange 3 connects a speech channel of a speech opposite party 4. The exchange 3 is provided with a temporary holding service means 6 consisting of a speech holding control section 6a and a restoration control section 6b, and the holding control section 6a interrupts a speech channel of the portable terminal 1 to temporarily hold the speech channel of the speech opposite party 4 in the case that control section 6a receives a signal of requesting speech interruption from the base station equipment 2 due to movement of the portable terminal 1 to the outside of a speech area or receives a signal requesting the speech holding from the portable terminal 1 through the base station equipment 2 due to movement of the portable terminal 1 at a high speed, and the restoration control section 6b restarts the speech for the speech opposite party 4 when the portable terminal 1 returns to the communication area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone (hereinafter referred to as PHS: Personal Handy Phone System).
And so on.

[0002]

2. Description of the Related Art FIG. 6 shows a P which has been rapidly spreading in recent years.
FIG. 11 is a block diagram illustrating a conventional example of an HS system configuration.
The PHS connects a portable terminal 1 owned by a subscriber to a base station device 2 installed in each place by a wireless interface, and connects the base station device 2 and the switching device 3 by a wired interface. ing.

[0003] Conventionally, as a hold service function provided by the PHS and the telephone system, there is a service for notifying a call partner of a hold from a portable terminal by a notification sound. In this case, the hold notification sound is transmitted from the portable terminal to the other party while the communication line between the portable terminal requesting the hold and the other party is held.

[0006] Referring again to FIG. 6, at this stage, the radio wave frequency output from the base station device 2 is small, so that the coverage area 7 which is a communication area where radio waves reach is very narrow. Therefore, a large number of base station devices 2 are installed in a certain area, but an area 8 where radio waves of the base station apparatus 2 do not reach may occur depending on an area location.

When the portable terminal 1 is moving between a plurality of base stations 2 during a call, the portable terminal 1 is connected to the destination base station 2 via a wireless communication line. By switching the line connection between the switching device 3 and the wired communication line, the communication can be continued. However, when the mobile terminal 1 is moving at a high speed, the mobile terminal 1 passes through a large number of base station apparatuses 2 in a short time, so that instantaneous interruption due to switching is continuous, and the call cannot be continued. .

Accordingly, the hold service function that can be provided becomes possible only when the communication line between the portable terminal and the other party can be held.
The function cannot be performed when the mobile terminal 1 moves out of the radio wave reach area or when the mobile terminal 1 moves at a high speed.

On the other hand, as a hold-related service that can be provided by the switching device 3, a call with a plurality of call partners is controlled, a call with a specific call partner is held by operation from a portable terminal, and another call partner is held. A function for making a call with a user is well known. However, also in this case, the function cannot be provided unless the telephone line can be held.

[0008]

These problems are caused by the fact that when communication with the portable terminal 1 is disabled through the base station apparatus 2, a disconnection request is sent to the exchange apparatus 3. This is because the system receives a disconnection request, determines that communication is impossible, turns off the communication line, and ends the communication with the communication partner.

Accordingly, an object of the present invention is to provide a portable terminal in which, when the PHS side portable terminal is in a call disabled state, only the other party's call line is held without holding the call line. It is an object of the present invention to provide a mobile communication system suitable for a simple portable telephone which can avoid such a problem that a call is suddenly cut off to a partner during a call due to circumstances of the mobile phone.

[0010]

In a mobile communication system according to the present invention, a communication line of a portable terminal is connected to a switching device via a base station device, and the switching device is connected to a communication line of a communication partner. To enter the talking state. A temporary holding service means is provided in the switching device, and here, when a signal requesting a call disconnection is received from the base station device by moving the mobile terminal out of the call area, or by moving the mobile terminal at a high speed. When a signal for requesting call hold is received from the portable terminal through the base station device, the call line of the portable terminal is turned off and the call line of the other party is temporarily held until resumption.

In this case, the temporary hold service means has a hold control unit, which receives a call disconnection request signal or a call hold request signal from the base station apparatus, turns off the call line of the portable terminal, and turns off the call line. The caller is notified of this fact and the call line is put on hold. The mobile communication terminal further includes a recovery control unit, which receives a call recovery request signal from the base station apparatus, turns on the communication line of the mobile terminal, releases the temporary hold state of the other party, and changes the communication line to the communication of the mobile terminal. The call is resumed by connecting to the line.

[0012] In each of the hold control unit and the recovery control unit, after confirming that the owner of the portable terminal is registered as a temporary hold service subscriber,
It corresponds to a portable terminal and a call partner, respectively.

[0013]

Embodiments of the mobile communication system according to the present invention will be described below in detail with reference to the drawings. The same or similar members as those shown in FIG. 6 of the conventional example are denoted by the corresponding reference numerals.

FIG. 1 shows a system configuration of this embodiment in which a temporary hold service can be provided.
It is a block diagram showing an S exchange system. Mobile terminal 1
Is located in the coverage area 7 which is the range of radio waves of the base station device 2, communication between the portable terminal 1 and the base station device 2 is possible over a wireless communication path. The base station device 2 is connected to the switching device 3 by a wire.
Therefore, the call between the mobile terminal 1 and the other party 4
This is realized by connecting both lines by relaying them with the switching device 3.

The switching device 3 includes a temporary holding service means 6. The temporary hold service means 6 has a hold control unit 6a which functions when the portable terminal 1 is located outside the communication area of the base station apparatus 2 and is in a call disabled state. Returns to the inside of the communication area of the base station apparatus 2, that is, the coverage area 7, and then recovers the call on hold due to interruption until then.
have.

A holding announcement device 5 is electrically connected to the switching device 3. Here, when a request signal for requesting to hold a call is received from the mobile terminal 1 through the base station apparatus 2, the call is temporarily interrupted and held for the other party 4 due to the convenience of the mobile terminal 1. Messages can be reported.

With the above configuration, the operation and operation of this embodiment will be described with reference to the operation flowcharts shown in FIGS. 2 and 3 and the operation block diagram shown in FIG.

First, in FIG. 2, when the portable terminal device 1 moves out of the coverage area 7 of the base station device 2 and moves out of the communication area to become in a communication disabled state, the base station device 2 A signal requesting "communication disconnection" is sent. On the other hand, as in the case where the mobile terminal 1 is moving between a number of base station devices 2 at a high speed, the call cannot be continued due to a momentary interruption of the call. In this case, a request signal for interrupting the call by the operation from the portable terminal 1 and holding the call is output, and the call hold request signal is sent to the switching device 3 through the base station device 2 (step 10). ).

As described above, a request signal for either disconnection of communication or call hold is transmitted to the switching device 3 via the base station device 2. Upon receiving this request signal, the hold control unit 6a of the temporary hold service means 6 in the switching device 3 operates.

When the hold control unit 6a receives either a request signal due to communication disconnection or a request signal due to call hold from the base station device 2 (steps 11 and 12), the connection state in the switching device 3 is determined to be during a call. Is confirmed (step 13).

If a call is in progress, the subscriber service data information of the portable terminal 1 stored in the exchange device 3 is read, and it is confirmed whether or not the subscriber has registered the temporary hold service (step 14). . If the subscriber has a service registration, a communication-off signal is output to the mobile terminal 1 and the base station device 2, and the mobile terminal 1 in the switching device 3 is output.
The line connection with is turned off (step 15).

Subsequently, the hold control unit 6a sends a message notification command signal to the hold announcement device 5, and the hold announcement device 5 receives the command signal and connects to the communication partner 4, and the portable terminal 1 A message indicating that the telephone is temporarily suspended and on standby due to the inability to communicate on the side is reported (step 16). As a result, the other party 4 knows the situation and stands by in preparation for resuming the call with the portable terminal 1.

FIG. 3 shows an operation procedure for resuming and restoring the held call to the other party 4.

When the portable terminal 1 enters the communicable area of the base station apparatus 2, that is, the coverage area 7, or when the mobile terminal 1 is moving but at a low speed, it is possible to talk.
In this case, a request signal for a call restart instruction is output by operating the mobile terminal 1. The signal requesting call recovery from the portable terminal 1 is sent to the switching device 3 through the base station device 2 (step 20).

Upon receiving the call restoration request from the portable terminal 1, the switching control unit 6b of the temporary holding service unit 6 operates in the switching device 3 this time. In the recovery control unit 6b, when a call recovery request is received (step 21),
It is checked whether or not the connection state with the other party 4 is on hold in the switching device 3 (step 22). If the subscriber is on hold, the subscriber service data information of the portable terminal 1 stored in the exchange device 3 is read, and it is confirmed whether or not the subscriber is a subscriber who has received the temporary hold service registration (step 23).

If the subscriber is a service registration subscriber, the connection between the other party 4 and the hold announcement device 5 is turned off to stop the message report (step 24). Subsequently, a connection process for enabling communication between the base station apparatus 2 and the mobile terminal 1 is performed, and relaying is performed by the switching device 3 to connect the communication lines of both the mobile terminal 1 and the communication partner 4 to each other. Then, the call is resumed to recover (step 25).

FIG. 5 shows a connection operation by the portable terminal 1. The exchange device 35 is connected to the communication partner 32, the hold announcement device 36, the base station device X, and the base station device Y. Further, the coverage area 31 of the base station device X
An area 33 where radio waves do not reach exists between the area 33 and the coverage area 34 of the base station device Y.

It is assumed that one portable terminal 30 is in the coverage area 31 of the base station apparatus X, is in a talking state with the communication partner 32 via the switching device 35, and is moving in the direction of the coverage area 34. . Mobile terminal 30 is area 3
When entering 3, the radio wave with the base station device X is interrupted, the outside of the area is displayed on the portable terminal 30, and the call becomes impossible. At this time, the temporary announcement service means of the present embodiment informs the other party 32 that the call is being held by the hold announcement device 36, and the other party 32 recognizes the situation and waits for the call to be resumed. Become.

When the portable terminal device 30 reaches the coverage area 34 of the base station device Y in the coverage area 34, P
Communication between the HS terminal 30 and the base station device Y becomes possible,
The out-of-area display of the HS terminal 30 disappears. When the PHS terminal 30 issues a call restoration request by button operation to resume the call, the call with the call partner 32 on hold is resumed, and the call can be continued.

[0030]

As described above, in the mobile communication system according to the present invention, when the portable terminal moves out of the communication area during a call and becomes unable to continue the call, the suspension is suspended due to such a situation. To the other party, the other party can recognize the sudden interruption of the call, wait for the call to resume, and resume the call when the mobile terminal re-enters the communication area where the call can be made. it can. Therefore, the inconvenience of sudden disconnection during a call as in the related art can be avoided, and the convenience can be further improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a system configuration including a temporary holding service unit which is a main part of a simplified cellular phone as an embodiment of a mobile communication system according to the present invention.

FIG. 2 is a flowchart showing an operation at the time of suspension by a temporary suspension service unit of the embodiment.

FIG. 3 is a flowchart showing an operation at the time of call recovery by the temporary hold service means.

FIG. 4 is a block diagram showing the operation of a temporary hold service means.

FIG. 5 is a diagram illustrating a connection operation as one mode of a temporary hold service unit;

FIG. 6 is a block diagram showing a conventional system configuration.

[Description of sign]

 REFERENCE SIGNS LIST 1 mobile terminal 2 base station device 3 switching device 4 call partner 5 hold announcement device 6 temporary hold service means 6a hold control unit 6b restoration control unit 7 base station device radio wave reach area 8 base station device radio wave reach outside area

Claims (4)

[Claims] 1. A mobile communication system in which a communication line of a portable terminal is connected to a switching device via a base station device and a line is connected to a communication line of a communication partner by the switching device to enter a communication state. Upon receiving a signal requesting disconnection of the call from the base station device by moving the portable terminal out of the call area, or holding the call from this portable terminal by moving the portable terminal at a high speed. A temporary holding service means for, when receiving a request signal through the base station device, turning off a communication line of the portable terminal and temporarily holding the communication line of the other party until resumption; Communications system. 2. The temporary hold service means receives a call disconnection request signal or a call hold request signal from the base station apparatus, turns off the communication line of the portable terminal, and temporarily holds the communication line of the other party. Receiving a call restoration request signal from the base station apparatus, turning on the communication line of the portable terminal, releasing the temporary hold state of the other party, and calling the communication line with the portable terminal. The mobile communication system according to claim 1, further comprising: a recovery control unit configured to connect a line to the line and restart a call. 3. An announcement device for notifying the communication partner of the call line of the communication partner at the time of temporary hold by the hold control unit and at the time of temporary hold release by the recovery control unit, respectively. The mobile communication system according to claim 2, wherein: 4. The suspension control unit and the restoration control unit,
In any case, after confirming that the owner of the portable terminal is registered as a temporary hold service subscriber,
4. The mobile communication system according to claim 2, wherein the mobile terminal and the communication partner correspond to each other.