JP3534054B2 - Mobile communication system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system, and in particular, after a mobile terminal such as a mobile telephone makes a line connection request within the range of a base station, it moves out of the range of the base station, The present invention relates to a mobile communication system that performs control when returning to a service area.

[0002]

2. Description of the Related Art A line connection request made by a mobile phone such as a mobile phone (PHS) within the range of a mobile base station is processed when the mobile phone moves out of the range of the mobile base station. Ends. At this time, the user of the mobile phone reconfirms on the monitor of the mobile phone whether the mobile phone is within the range of the mobile base station during the course of the movement (confirms the radio wave entering condition). Then, the operation of the mobile telephone is re-executed again to raise the line connection request. This series of operations is a labor-intensive operation for the user.

Therefore, when the mobile phone moves out of the communication area during a call and the continuation of the call becomes impossible, the call line is turned off and the communication line of the other party is temporarily held until it is restarted. There is conventionally known a mobile communication system in which a temporary hold is released and a call can be resumed when the user reenters the communication area (Japanese Patent Laid-Open No. 10-29106).
No. 308969).

FIG. 2 shows a system configuration diagram of an example of the conventional mobile communication system. In the figure, the telephone line of the mobile telephone 21 is connected to the switching device 2 via the base station device 22.
32 connections are made, and this switching device 23 connects to the communication line of the communication partner 24. The switching device 23 has a temporary holding service means 26 including a call holding control unit 26a and a restoration control unit 26b, and requests the disconnection of the call from the base station device 22 when the mobile telephone 21 moves out of the call area. When the hold control unit 26a turns off the call line of the mobile phone 21 to temporarily hold the call line of the other party 24 when the signal is received, and the mobile phone 21 returns to the communication area, the restoration control unit 26b The call is resumed with respect to the call partner 24.

[0005]

[SUMMARY OF THE INVENTION] However, in the above conventional mobile communication system, between the mobile telephone 21 is to move outside the service area until returning to the call area of the communication partner 24 Since the call line is put on hold, the billing system for the subscriber (mobile phone 21) continues to operate while the call is put on hold, causing a heavy call charge burden.

The present invention has been made in view of the above points,
An object of the present invention is to provide a mobile communication system capable of eliminating the troublesome operation for restarting the line connection when entering the service area from outside the service area without operating the charging system.

Another object of the present invention is to disconnect when a mobile terminal makes a line connection request within the service area, moves out of the service area, and then enters a radio zone (service area) of any mobile base station. An object of the present invention is to provide a mobile communication system capable of preventing an erroneous operation by a user without adding a new function to a mobile terminal by reconnecting the established line.

[0008]

In order to achieve the above-mentioned object, the present invention allows any base station among a plurality of base stations to wirelessly communicate with a mobile terminal existing in its own radio zone and to move. A line connection request from the mobile terminal is notified to a control station common to a plurality of base stations through the exchange connected to the local station, and the control station sends the position information of the mobile terminal and the destination of the call based on the line connection request. In a mobile communication system that controls connection of a switch and a base station so as to establish a line connection between a mobile terminal and a destination based on position information, a control station is located in a first wireless zone of an arbitrary base station. The mobile terminal which has made the line connection request while the mobile terminal moves out of the first wireless zone, stores the line connection request for a certain period of time from the time when the mobile terminal moves out of the first wireless zone, and the first wireless of any base station. Connect to the line while in the zone When the requesting mobile terminal moves out of the service area of the first wireless zone, disconnection means for controlling the plurality of base stations so as to disconnect the line connection based on the line connection request, and the mobile device moving out of the service area. When the terminal detects that it has entered the second wireless zone of any one of the plurality of base stations within a certain time by the notification from the base station of the second wireless zone, the storage means Control for controlling the exchange connected to the base station of the second wireless zone and transmitting the call signal indicating whether or not to restart the processing of the line connection request held in the second wireless zone from the base station of the second wireless zone. Means connected to the base station in the second wireless zone, the exchange held by the storage means of the control station when the mobile terminal receives the notification of the restart of the processing of the line connection request. Line based on connection request The mobile terminal is provided with a connection means for continuing, and the mobile terminal is provided with a notification means for deciding whether to restart or not restart the processing of the line connection request based on a calling signal from the base station in the second wireless zone. Is characterized by.

[0009] In this invention, after the mobile terminal has a line connection request in short, if has moved out of range, stores the line connection request (call) to the control station over a time incoming call, mobile terminal has moved out of range thereafter, <br/> field if entering the radio zone of any mobile base station (km), the line connection request processing by the user's desire of moving body terminal
The reason can be resumed . Further, according to the present invention, since the line connection is disconnected while the mobile terminal that has requested the line connection in the area is out of the area, the charging system can be prevented from operating.

Further, when the control station detects that the mobile terminal that has moved out of range does not enter the radio zone of any one of the plurality of base stations within a fixed time, the storage means The line connection request held by the mobile terminal is discarded, and when the mobile terminal receives a notification of non-restart of the line connection request processing through the exchange connected to the base station of the second wireless zone, the storage means The feature is that the line connection request held in is discarded.

[0011]

[0012]

[0013]

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a system configuration diagram of an embodiment of a mobile communication system according to the present invention. As shown in the figure, the area 1 is composed of a wireless zone 3 by the mobile base station 2, a wireless zone 5 by the mobile base station 4, and a wireless zone 7 by the mobile base station 6, and these wireless zones 3, 5 and Other than 7, it is assumed to be out of the service area. Mobile phone 8 is out of range, mobile phone 9 is in wireless zone 5
Are in the area.

The mobile base stations 2, 4 and 6 include PHS connecting devices 10, 15 and 17 and exchanges 11, 16 and 18, respectively.
Are commonly connected to the control station 13 via the common line signal line 12, and the exchanges 11 and 18 are connected to the relay exchanges 14 and 19. The repeater exchanges 14 and 19 are also connected to each other.

The mobile phones 8 and 9 have a function of matching the position information stored therein with the position information transmitted from the mobile base station, and if the position information does not match. , And has a function of requesting a change of position information. The mobile base stations 2, 4 and 6 have a function of transmitting position information to mobile phones existing within the range of their own stations, and the channels owned by the mobile base stations are vacant according to the line connection request from the mobile phones. After determining whether or not there is a line connection request to the exchange 11, 16 or 18 connected to the local station.

The exchanges 11, 16 and 18 are controlled by the control station 1 based on the line connection requests from the mobile base stations 2, 4 and 6.
The control information from 3 is acquired and the line is connected. Further, the exchanges 11, 16 and 18 call out as a line connection achievement message to the originator when the line connection with the destination is achieved.

The control station 13 for controlling the exchanges 11, 16 and 18 stores the position information of the mobile telephone and sets the line connection route according to the originating and terminating positions of the mobile telephone (controls the line connection of the exchange. Have a function. Further, in this embodiment, the control station 13 sends the requested line connection request when the mobile telephone is in the wireless zone (in-range) 3, 5 or 7 of the mobile base station 2, 4 or 6. It is held for a certain period of time, and the line connection processing of the exchanges 11, 16 or 18 is restarted when the mobile telephone which has requested the line connection enters the area of any mobile base station within the certain period of time. After that, when the line connection with the destination is achieved, the caller is called as a message indicating that the line connection is achieved.

Next, the operation of this embodiment will be described. When a line connection request is issued when the mobile phone 8 is at the position 8a, that is, within the wireless zone 3 of the mobile base station 2, the mobile base station 2 that has received the line connection request
Is the control station 1 via the PHS connection device 10 and the exchange 11.
3 is notified of the line connection request, and the control station 13 holds the line connection request. When the mobile phone 8 moves to a position indicated by 8b immediately after making a line connection request, that is, outside the service area, the control station 13 holds the above line connection request, but the line itself is out of service area of the mobile phone 8. I have been refused because I moved to.

The line connection request holding time of the control station 13 is assumed to be a case where the user turns off the power outside the range of the mobile base station or a case where it takes a considerable time to return to the base station area. Therefore, it is necessary to set it to the maximum value specified by examination. If the line connection request holding time is set to unlimited, the history of line connection requests is stored in the storage device of the control station 13 when the power is cut off or the time to return to the base station area becomes long, and the capacity of the storage device is increased. This is because it may exceed the above, and this is to prevent this in advance. Therefore, when the line connection request hold time exceeds the maximum value specified by the study, the control station 1
The line connection request held in the storage device 3 is automatically erased. As a result, the limited storage capacity of the storage device of the control station 13 can be effectively used.

After satisfying such conditions, the mobile telephone 8 moves and moves to any radio zone within the line connection request holding time, for example, to the position indicated by 8c to move to the radio zone of the mobile base station 6. In the case of entering 7, a position information update request is transmitted from the mobile phone 8 to the mobile base station 6,
The position information update request is further transmitted to the control station 13 via the PHS connection device 17, the exchange 18, and the common line signal line 12.

When the control station 13 identifies that the input position information update request is from the mobile telephone 8 of the line connection request held, it sends a call signal as to whether or not to restart the line connection request. Output response. This call signal is transmitted as a response to the mobile telephone 8 (8c) located in the wireless zone 7 via the common signal line 12, the exchange 18, the PHS connection device 17, and the mobile base station 6. .

[0023] the mobile telephone 8 receives a call signal, a display to that effect, there have to inform the like by the call sound. The user who notices this call pushes down the call button of the mobile phone 8 to send a response signal. Then, a response signal is transmitted to the control station 13 through the same route as the above-mentioned position information update request, and the control station 13 connects the line between the exchange 18 and the mobile telephone 8 (8c), and the exchange 1
According to the guidance instruction from 8 , the user determines whether to restart or not restart the line connection.

When it is decided to restart the line connection, the line connection processing is executed on the side of the exchange 18 to connect the line to the called side. If the user side does not respond to the restart / non-restart decision notification, the user connection is determined to be non-restart due to a timeout, and the line connection process is discarded. For users who do not need this service, stop or start of the service can be set by a guidance instruction after dialing up the service guide. This makes it possible to start and stop the service.

As described above, in the present embodiment, when the mobile telephone makes a line connection request within the service area and then disconnects because it has moved out of the service area, the control station 13 makes an incoming call once. If the mobile phone that has stored the call and moved out of the service area then enters the wireless zone (within the service area) of any mobile base station, disconnect the line again at the request of the user of the mobile phone. Since the connection is made, it is possible to reconnect the line very easily by changing the software of the control station 13 without adding a new function to the mobile phone, and it is possible to prevent an erroneous operation by the user.

Further, in the present embodiment, since the line connection is cut off while the mobile telephone which has requested the line connection within the area is out of the area, the charging system does not operate, and the communication charge during the area outside the area is not charged. You can eliminate the burden.

Next, another embodiment of the present invention will be described. In this embodiment, the mobile telephones 8 and 9 in FIG.
The position information stored therein is updated based on the position information transmitted from the mobile phone 8 to the control station 13.
Along with the updating of the position information of 9 and 9, a change request is made through the mobile base station 2, 4 or 6 and the exchange 11, 16 or 18.

As a result, the control station 13 causes the mobile telephone 8
And 9 are changed, and the position information of each mobile telephone 8 and 9 is grasped, and then the line connection control of the exchange 11, 16 or 18 is carried out. In the conventional mobile telephone line connection processing carried out in this manner,
Improve the mobile terminal control method when the mobile phones 8 and 9 move out of the wireless zone (area) 3, 5 or 7 of the mobile base station 2, 4 or 6 to improve service convenience for the user. The purpose is to plan.

Next, the operation of another embodiment will be described. Now, it is assumed that the mobile phone 8 makes a line connection request to the incoming call destination mobile phone while being in the wireless zone 3 of the mobile base station 2 as indicated by 8a. After that, if the mobile phone 8 moves to an area (out of service area) that does not enter the range of any mobile base station, it will hinder the subsequent line connection.

Therefore, the mobile telephone 8 has a function of continuing the line connection request until it enters the range of any mobile base station thereafter. The function of continuing the line connection request can be set as the number of retries by default setting at the time of purchasing the mobile phone or by the user's arbitrary setting (the same applies to the mobile phone 9). On the other hand, in the mobile base station 2, the presence of the mobile telephone 8 disappears from the wireless zone 3 of the mobile base station 2, so that the mobile telephone 8
Has a function of notifying the control station 13 of the out-of-service notification of the mobile station (the mobile base stations 4 and 6 are also
It has a function of notifying the control station 13 of the out-of-service notification of the mobile phone that has been in the wireless zone of its own station through the exchanges 16 and 18.

The control station 13 disconnects the line set up because the mobile telephone 8 has moved out of the service area. Thereafter, the control station 13 restores the line connection processing by entering the radio zone of any mobile base station while the line connection request function of the mobile telephone 8 is being retried. When the line connection is restored, the switch connected to the mobile base station in the wireless zone in which the mobile telephone 8 is included transmits a line connection processing restoration notification to the mobile telephone 8 through the mobile base station, Mobile phone 8 that received this
Informs the user with a ringing tone. After that, the connection with the destination is completed and the connection is completed.

If the mobile telephone 8 which has made a line connection request within the area does not enter the radio zone of any of the mobile base stations during the set retry processing after moving out of the area, the retry processing is performed. This is the end, and the subsequent line connection request is not executed.

It is also possible to stop the retry process during the retry process by an arbitrary operation on the user side (for example, by pressing the call disconnection button). Further, since it may be possible that some users do not particularly need the retry processing function from the time of purchasing the mobile phone, it is possible to set the retry processing function itself by operating the mobile phone.

As described above, in this embodiment, when the mobile telephone which has made a line connection request while being within the range of the mobile base station has moved out of range, the line is disconnected. , While the line connection request function of the mobile phone is being retried, the line connection processing is automatically restored by entering the wireless zone of any mobile base station. It is possible to simplify the line connection request processing and prevent the call charges during out-of-range charges. Further, since the restoration notice (call) of the line connection processing is sent from the exchange side, the user does not need to constantly monitor the return of the mobile telephone within the area.

The present invention is not limited to the above embodiment, and for example, a mobile phone other than PHS,
Alternatively, the present invention can be applied to all mobile terminals such as portable information terminals.

[0036]

As described above, according to the present invention,
After the mobile terminal has a line connection request in short, if has moved out of range, the mobile terminal has moved out of range is then entered the radio zone of any mobile base station (km) In this case, since the line connection request process is restarted, the line connection request process when the user returns to the service area can be simplified.

Further, according to the present invention, while the mobile terminal requesting the line connection within the area is out of the area, the charging system is prevented from operating by disconnecting the line. You can avoid it.

Furthermore, according to the present invention, since the restoration notice (call) of the line connection processing is sent from the exchange side, the user does not need to constantly monitor the return of the mobile terminal to the service area.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an embodiment of the present invention.

FIG. 2 is a system configuration diagram of a conventional example.

[Explanation of symbols]

2, 4, 6 Mobile base stations 3, 5, 7 wireless zone (within range) 8, 9 Mobile phones 10, 15, 17 PHS connection device 11, 16, 18 switch 12 common line signal line 13 control station 14, 19 Relay switch

Claims (3)

(57) [Claims] 1. An arbitrary base station among a plurality of base stations wirelessly communicates with a mobile terminal existing in a wireless zone of the local station, and a line connection request from the mobile terminal is connected to the local station. Via the exchange, the control station common to the plurality of base stations is notified, and the control station receives the mobile terminal from the mobile terminal based on the location information of the mobile terminal and the location information of the destination based on the line connection request. In a mobile communication system for controlling the connection between the exchange and the base station so as to establish a line connection with a destination, the control station may connect to a line when the mobile station is in the first wireless zone of the arbitrary base station. A storage unit that stores and holds the line connection request for a certain period of time after the mobile terminal that has made the connection request moves out of the service area of the first wireless zone; Connect to the line while in the service area Disconnection means for controlling the plurality of base stations so as to disconnect the line connection based on the line connection request when the mobile terminal that has made the connection request moves out of the service area of the first wireless zone; From the base station of the second wireless zone, the fact that the mobile terminal that has moved out of the range has entered the second wireless zone of any one of the plurality of base stations within the fixed time When it is detected by the notification of the above, a call signal indicating whether or not to restart the processing of the line connection request held in the storage means is controlled by the exchange connected to the base station of the second wireless zone. The switching device connected to the base station of the second wireless zone is provided with a control unit for transmitting from a base station of the second wireless zone, and the switching device notifies the processing restart of the line connection request from the mobile terminal. When received The mobile terminal comprises a connection means for performing line connection based on the line connection request held in the storage means of the control station, wherein the mobile terminal is based on the call signal from the base station of the second radio zone, A mobile communication system comprising a notifying means for deciding and notifying whether the processing of the line connection request is restarted or not restarted. 2. The control station detects that the mobile terminal that has moved out of range has not entered the radio zone of any one of the plurality of base stations within the fixed time. The mobile communication system according to claim 1, wherein the mobile communication system discards the line connection request held by the storage means. 3. The storage means, when the control terminal receives a notification of non-resumption of processing of a line connection request from the mobile terminal through the exchange connected to a base station of the second wireless zone. 2. The mobile communication system according to claim 1, wherein the line connection request held in is discarded.