JP2003009249A - Mobile communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely notify a portable telephone set of the history of a failure in the case a telephone set to which a caller number notification service is offered fails in an incoming call to the portable telephone set. SOLUTION: When an outer walkie-talkie 11 is connected to a fixed telephone set 1, an incoming call history notifying device 20 receives its subscriber number from a mobile telephone exchange 5 to store the subscriber number and notifies the portable telephone set 2 of the stored subscriber number via the mobile telephone exchange 5 by inputting a special number to the portable telephone set 2.

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 in which, when a telephone provided with a caller number notification service fails to receive a call to a mobile telephone, the history of the call is reliably notified to the mobile telephone.

[0002]

2. Description of the Related Art FIG. 3 is a diagram for explaining a case where an incoming call is received from a fixed telephone 1 to a mobile telephone 2. When the caller dials the subscriber number of the mobile telephone 2 from the fixed telephone 1, the fixed telephone 1 connects to the exchange 6 of the mobile telephone exchange 5 via the line 4 of the general public telephone network 3, and the exchange 6 When the area of the corresponding mobile phone 2 is checked in the location registration memory of the HLR station 7 and it is determined that the mobile phone 2 is within range, the corresponding exchange is connected to the base station 9 and a paging signal is transmitted to the mobile phone 2. It Then, the base station 9 in the service area 8 having the highest response signal level is connected via the transmission line 10 to start communication. On the other hand, when it is determined that the mobile phone 2 is out of the service area, the exchange 6 determines that the out-of-service talkie 11
To the fixed telephone 1 to notify the caller that the mobile telephone 2 is out of range.

In this way, the caller is informed only when the mobile phone 2 is out of the service area.
If there is an urgent need, the mobile phone 2 must be repeatedly called until it returns to the area. Therefore, an answering machine service is provided in which the mobile phone operator keeps the message of the caller while the mobile phone 2 is out of service. In this service, when there is an incoming call request from the fixed telephone 1 while the mobile telephone 2 is out of the service area, the exchange 6 makes the fixed telephone 1
Is connected to a voice storage device (not shown) so that the caller can record a message, and when the mobile phone 2 returns to the service area, it is reproduced and notified.

[0004]

However, if the caller hangs up immediately after connecting to the answering machine service and does not leave a message, no record of the incoming call request is left at all. In view of such circumstances, the present invention provides a mobile communication system in which the history of which is reliably notified to the mobile phone when the phone provided with the caller number notification service fails to receive the mobile phone. The purpose is to

[0005]

DISCLOSURE OF THE INVENTION The present invention for solving the above-mentioned problems is provided when connecting an out-of-service torch to a calling telephone.
An incoming call history in which the subscriber number of this calling telephone is received from the mobile telephone exchange device and stored, and the stored subscriber number is notified to the mobile telephone via the mobile telephone exchange device by an incoming call history request command from the mobile telephone. A notification device is provided. When the calling telephone fails to receive the incoming call to the mobile telephone, the out-of-range talk is connected to the calling telephone.
At this time, the incoming call history notification device receives and stores the subscriber number of the calling telephone from the mobile telephone switching device, and when the incoming call history request command is received from the mobile phone, the stored subscriber number is stored. Is notified to the mobile phone via the mobile telephone exchange device.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a block diagram showing a mobile communication system of the present invention. In the figure, reference numeral 1 is a fixed telephone, and a caller number notification service for notifying the subscriber number of the fixed telephone is provided. The fixed telephone 1 is connected to a switching center 6 of a mobile telephone switching device 5 via a line 4 of a general public telephone network 3. A large number of base stations 9 are connected to the exchange 6 via transmission lines 10. Exchange 6
Is provided with an out-of-range talkie 11 for notifying the caller of an incoming call request to a mobile phone (including a power-off one) 2 out of the area. Mobile telephone switching device 5
Includes an HLR station 7 having a location registration memory for storing the area of the mobile phone 2, and an SM station 12 for transmitting a short message (hereinafter referred to as SM) to the mobile phone 2. An incoming call history notification device 20 is connected to the exchange 6 via a data line 18 and a data link bus 19.

The incoming call history notification device 20 has a transmitting section 21 and a receiving section 22 for transmitting data to and from the exchange 6.
The memory unit 23 for storing the data transmitted from the exchange 6 and the transmitter 21 and the receiver 22 control the transmission of the data to the exchange 6, while the transmitter 21 and the receiver 22 Writes data to the memory unit 23,
The common control section 24 for controlling reading and the clock section 25 for measuring the time when the receiving section 22 receives the data from the exchange 6 are provided, and each of these sections has a data link bus 26.
Are connected to each other via. The memory unit 23 is provided with a dedicated folder for each subscriber number of the mobile phone 2 that has received the incoming call history notification service described later. That is, the name of the folder matches the subscriber number of the mobile phone 2, and this folder stores the subscriber number of the originating telephone that failed to receive the call to the corresponding mobile telephone 2, as described later. It will be.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. When the caller dials the subscriber number of the mobile telephone 2 from the fixed telephone 1 (S0
1), the fixed telephone 1 is connected to the exchange 6 of the mobile telephone exchange 5 via the line 4 of the general public telephone network 3, and the exchange 6 is the location registration memory of the HLR station 7 and is the area of the corresponding mobile telephone 2. Is checked (S02). When it is determined that the mobile phone 2 is in the service area, the corresponding exchange is connected to the base station 9 and the paging signal is transmitted to the mobile phone 2. In addition,
The exchange referred to here is a mobile communication exchange, and the exchange 6 in FIG. 1 serves both as a mobile barrier exchange and a mobile communication exchange. Then, the exchange 6 connects the base station 9 in the service area 8 having the highest level of the response signal to the transmission path 10 and starts communication (S03).

On the other hand, when it is determined that the mobile telephone 2 is out of the service area, the exchange 6 sends the out-of-service torch 11 to the fixed telephone 1.
To notify the caller that the mobile phone 2 is out of range. At this time, that is, the out-of-range talkie 11 is the fixed telephone 1
When the connection is established, the exchange 6 sends the subscriber numbers of both the fixed telephone 1 and the mobile telephone 2 to the incoming call history notification device 20 via the data line 18 and the data link bus 19 (S04). In the incoming call history notification device 20, these subscriber numbers sent from the exchange 5 are received by the receiving unit 22 (S05), and the reception time is measured by the clock unit 25 (S06). The common control unit 24 stores the information in which the reception time is added to the simultaneously received subscriber number of the fixed telephone 1 in a folder in the memory unit 23 corresponding to the received subscriber number of the mobile telephone 2 ( S07).

Next, it is assumed that the mobile phone 2 moves to the area of the base station 9 within the service area 8 and dials a special number to make a request for incoming call history outside the service area (S0).
8). The entered special number is the base station 9, transmission line 10,
It is transmitted to the incoming call history notification device 20 via the exchange 6, the data line 18, and the data link bus 19. Further, the exchange 6 sends the subscriber number of the mobile phone 2 to the incoming call history notification device 20. In the incoming call history notification device 20, when the receiving unit 22 receives the subscriber number and the special number of the mobile phone 2, the common control unit 23 is stored in the folder in the memory unit 23 corresponding to the received subscriber number. The information in which the reception time is added to the subscriber number of the fixed telephone 1 and the subscriber number of the mobile telephone 2 registered with the name of this folder are read, and these pieces of information are transmitted to the transmission unit 21.

The transmitted information is transmitted from the transmission unit 21 to the SM station 12 via the data link bus 19, the data line 18 and the exchange 6 (S09). In the SM station 12,
The transmitted information (subscriber number of mobile phone 2, subscriber number of fixed telephone 1 with reception time added) is converted into the SM communication system (S10), and the service area 8 is transmitted through the transmission line 10. The mobile phone 2 within the range of the base station 9 is SM-transmitted to notify the incoming call history (S11). The incoming call history notification service for the mobile phone 2 is provided as described above. The same service is provided even when the mobile phone 2 is powered off.

In the present embodiment, when the out-of-range talkie 11 is connected to the fixed telephone 1, its subscriber number is stored in the memory unit 23 of the incoming call history notification device 20, that is, the intention of the caller. Since the data is stored regardless of the relationship, even if the caller hangs up immediately after connecting to the answering machine service and does not leave a message, the incoming call history is surely notified to the mobile phone 2. Further, since the notification of the incoming call history is performed by inputting the special number to the mobile phone 2, that is, the incoming call is led, the confirmation of the incoming call history becomes reliable. Further, since the incoming call history is notified by the SM system, there is an effect that it is useful for promoting the response and managing the incoming call record. In this embodiment, the incoming call history is notified by the SM method, but it may be notified by e-mail on the Internet.

[0013]

The mobile communication system of the present invention receives the subscriber number of the calling telephone from the mobile telephone switching device and stores the subscriber number when the out-of-range torch is connected to the calling telephone, and the stored subscriber number is stored. It has an incoming call history notification device that notifies the mobile phone via the mobile phone switching device in response to an incoming call history request command from the mobile phone. It is automatically stored in the incoming call history notification device. That is,
Since the subscriber number of the calling phone is stored regardless of the caller's intention, even if the caller hangs up and does not leave a message immediately after connecting to the answering service, the incoming call history is stored in the mobile phone. Will be notified to you. Further, since the notification of the incoming call history is given by a command from the mobile phone, that is, since the notification of the incoming call history is given by the incoming call, the confirmation of the incoming call history becomes reliable.

[Brief description of drawings]

FIG. 1 is a block diagram showing a mobile communication system of the present invention.

FIG. 2 is a flowchart showing an operation of the mobile communication system.

FIG. 3 is a block diagram showing a conventional mobile communication system.

[Explanation of symbols]

1 ... Stationary telephone, 2 ... Mobile telephone, 5 ... Mobile telephone exchange device, 6 ... Exchange station, 7 ... HLR station, 9 ... Base station, 11 ... Out-of-range talkie, 12 ... SM station, 20 ... Incoming call history notification device, 21 ... Transmission unit, 22 ... Reception unit, 2
3 ... Memory section, 24 ... Common control section, 25 ... Clock section, 26 ... Data link bus.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04B 7/26 MF term (reference) 5K024 AA76 BB04 CC01 CC11 DD01 DD04 EE01 FF03 GG01 5K036 AA07 BB11 EE13 JJ05 5K067 AA21 BB04 DD13 DD16 DD51 EE02 EE10 EE16 FF02 GG12 HH11 HH22 KK13 KK15

Claims (7)

[Claims] 1. In a mobile communication system in which an out-of-range talkie of a mobile telephone switching device is notified to a caller of an incoming call failure to a mobile telephone, when the out-of-range talkie is connected to the calling telephone, the subscriber of the calling telephone An incoming call history notification device for receiving and storing a number from the mobile phone exchange device and notifying the stored subscriber number to the mobile phone via the mobile phone exchange device according to an incoming call history request command from the mobile phone. A mobile communication system comprising: 2. A transmitting unit and a receiving unit for transmitting data to and from the mobile telephone switching device, a memory unit for storing a subscriber number of the calling telephone, and the receiving unit for transmitting data from the mobile telephone switching device. When the subscriber number is received, the subscriber number is stored in the memory unit, and when the receiving unit receives the incoming call history request command from the mobile phone, the subscriber number is stored in the memory. 2. The mobile communication system according to claim 1, wherein the incoming call history notification device is configured by a common control unit that is extracted from a transmission unit and transmitted from the transmission unit to the mobile telephone exchange device. 3. The incoming call history request command is issued by inputting a special number to a mobile phone, and when the special number is received by the receiving unit, the subscriber number is transmitted from the transmitting unit to the mobile telephone exchange device. The mobile communication system according to claim 2, wherein the mobile communication system is transmitted to the mobile communication system. 4. The receiving unit receives the subscriber number of the mobile telephone together with the subscriber number of the calling telephone from the mobile telephone switching device, and the memory unit has a dedicated folder for each subscriber number of the mobile telephone. 4. The mobile communication system according to claim 2 or 3, further comprising: a subscriber number of the calling telephone set stored in the folder in association with a subscriber number of the mobile telephone set. 5. The common control unit, when the receiving unit receives the special number, the subscriber number of the mobile phone that has issued the special number and the call origination stored in the folder corresponding to the subscriber number. 5. The mobile communication system according to claim 4, wherein the subscriber number of the telephone is read from the memory unit, and the subscriber number is transmitted from the transmitting unit to the mobile telephone switching device. 6. The receiving unit includes a clock unit for measuring the time when the subscriber number of the originating telephone is received, and the reception time measured by the clock unit is added to the subscriber number of the originating telephone. The mobile communication system according to claim 2, wherein the mobile communication system is stored in a memory unit. 7. The subscriber number to which the reception time is added is transmitted to a short message station of the mobile telephone switching device and converted into a short message, and the short message is notified to the mobile phone as an incoming call history. The mobile communication system according to claim 6, wherein: