JP2005341336A - Communication method for mobile communication - Google Patents

Abstract

Provided is a communication method for mobile communication which has a function that allows a PS to recognize a missed call history even when a call is made to a PS located outside the service area.
One of a plurality of wireless mobile terminals performs a call connection operation of a call for calling another one located outside a service area, and as a result of the call connection operation, a predetermined time is given to another one When the call is not received, the exchange system determines that the other wireless mobile terminal is located outside the service area, notifies the server PC of the missed call status of the terminal, and the server PC is notified. Missed call status is stored as a missed call history, and when the other one moves from outside the service area to the service area and returns to the service area, the missed call history accumulated on the server PC is stored. By transmitting a message from the server PC to another one, the other one can recognize the missed call history of the terminal.
[Selection] Figure 2

Description

  The present invention relates to electrical digital data processing, such as communication control for interconnection or transfer of information or other signals between terminals, memory or input / output devices or central processing units or terminal processing.

In the prior art, a portable communication terminal and an incoming call transfer method that can send a mail document that collects caller information to a designated destination of a caller when a missed call is received. A portable communication terminal capable of confirming an incoming call and an incoming call transfer method have been provided. (For example, refer to Patent Document 1).
JP 2003-219469 A (page 7, FIG. 1)

In the conventional PHS (Personal Handyphone System) and the digital cordless telephone system such as the digital cordless telephone system for offices, the missed call history is stored in the service area of the radio line area PS (Personal Station) which is the incoming mobile radio terminal. When a call is received and the user does not answer due to an absence, etc., the missed call history is stored in the memory in the PS on the called side, and the user later Was able to recognize the number of the other party by looking at the missed call history.
Therefore, it is a condition for confirming the missed call history that the called-side PS is located within the range and has reached the incoming call ringing operation, and is located outside the service area (hereinafter referred to as “out of range”). Whether the caller's PS cannot confirm such a missed call situation, and does the base station side send a message that the other party is absent only to the user of the PS on the caller's side Alternatively, the called PS is connected to a network answering service such as an answering machine service or a call forwarding service.

FIG. 3 shows an example of a system diagram of a conventional mobile communication system.
In FIG. 3, 1a,..., 1n are a plurality of wireless mobile terminals (PS) which are PHS wireless mobile terminals having a message receiving function, and 2 is connected to a plurality of PSs via a wireless system line. A base station (BS) and a base station (BS) 3 are PBX (Private Branch Exchange) exchange systems located at offices connected to the BS 2 and an external network subscription line by wire. , 31a, 31b are BS control interface modules (BSIFs) in the PBX exchange 3 that are interfaced with the BS, and 32 is a central processing module (call control) connected to a plurality of BSIFs and a subscriber line (call control) ( MCP; Main Control Packag e).

FIG. 4 shows an example of a call connection procedure at the time of a missed call in a conventional mobile communication system as a communication method for mobile communication.
FIG. 4 shows a case where the called party is initially out of service area. In such a case, the missed call history can be confirmed by the called party using the normal call connection procedure. Therefore, description of an example of a call connection procedure when the called party is first located in the service area is omitted.
First, PS1a is a call connection state of a wireless mobile terminal located at 7000 and the calling side, and PS1n is a wireless mobile terminal located at the number 7001 and the called side, which is first located outside the range. Call connection status. BS2 is located between a plurality of PS1 and PBX3 exchanges located in the area and indicates the call connection status of the base station. The MCP 32 is in the PBX 3 exchange and is a call connection status of the central processing module (call control).
S1 is a calling step for transmitting a calling signal for calling the PS1n of the number 7001 to the BS2 by the wireless mobile terminal PS1a located at the calling party and within the area of the number 7000.
S2 is a calling step in which the calling signal transmitted to BS2 in step S1 is continuously transferred from BS2 to MCP 32 in PBX2.
S3 is a calling step in which the calling signal receives call control for exchange of the MCP 32 and is transferred back from the MCP 32 to the BS 2 following the step S2.
S4 is a calling step for transmitting a calling signal for calling PS1n of the number 7001 transferred from the MCP 32 to the BS2 from the BS2 to the PS1n following the step S3. However, since PS1n is located outside the service area, this call signal cannot be received and the call cannot be received.
S5 activates a search timer for recognizing the elapse of a predetermined time in the MCP 32 at the time of step S3. During this time, the incoming call cannot be made in the PS 1n and there is no incoming call response from the PS 1n to the MCP 32. In this step, it is determined that PS1n is out of service, the out-of-service detection flag is turned on, and an out-of-service message is sent back from the MCP 32 to the PS1a on the calling side according to this situation. Here, it is assumed that PS1a is disconnected.
S6 is a location registration step in which the location registration signal is transmitted from PS1n to BS2 when PS1n is located within the service area. At this stage, the missed call status when the user is still out of service is still unknown.
S7 is a location registration step for transferring and registering the location registration signal received by the BS2 to the MCP 32. After position registration, return from out-of-service detection flag to ON to OFF.
However, even if PS1n comes to be within range, the missed call record when it is out of range cannot be recognized because it is not stored in PS1n.

  In the mobile communication system of the conventional PHS PS or mobile phone such as a mobile phone described above and the exchange such as PBX, the history of missed calls is stored and managed on the wireless mobile terminal side. Incoming calls that are located outside the service area cannot be left in the PS as a missed call history (memory), and the PS user cannot recognize the missed call history.

  An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a function that allows the PS side to recognize a missed call history even when an incoming call is made to a PS located outside the service area. To provide a communication method for mobile communication.

To achieve this object, a communication method for mobile communication includes a plurality of wireless mobile terminals having a message receiving function, and at least one wireless base station connected to the plurality of wireless mobile terminals via a wireless system. And a communication method of mobile communication that can be performed by an exchange system to which the radio base station and the subscriber line are connected,
A server PC connected to the exchange system via a LAN;
A call connection operation of a call for calling one of the plurality of wireless mobile terminals located outside the service area by one of the plurality of wireless mobile terminals is performed, and as a result of the call connection operation, When a call is not received within a predetermined time for another wireless mobile terminal,
The exchange system determines that the other wireless mobile terminal is located outside the service area, and notifies the server PC of the missed call status of the terminal,
The server PC stores the notified missed call status as a missed call history,
When another one of the plurality of wireless mobile terminals moves from outside the service area into the service area and returns to the service area,
The missed call history stored in the server PC is message-transmitted from the server PC to another one of the plurality of wireless mobile terminals.
Another one of the plurality of wireless mobile terminals can recognize the missed call history of the terminal.

  If the present invention is implemented, the incoming call side wireless mobile terminal is stored in the server as a missed call in the out-of-service area, and is notified from the server to the incoming call-side wireless mobile terminal. Therefore, it is possible to make a setting to compensate for the weakness peculiar to mobile communication of the response method when it is not possible to answer the phone, and the user convenience is improved and the present invention is extremely useful and exhibits a special effect. Is clear.

FIG. 1 shows an example of a system diagram of the mobile communication system of the present invention.
In FIG. 1, 1a,..., 1n are a plurality of wireless mobile terminals (PS) which are wireless mobile terminals having a PHS message receiving function, and 2 is connected to a plurality of PSs via a wireless system line. Radio base station and antenna (BS), 3 is an exchange system such as PBX connected by wire to BS2 and a subscriber line, 4 is a server PC connected by LAN to PBX, which is an exchange system, An application server having a computer connected to a personal computer and providing information such as mail via the Internet, is connected to the PBX 3 in the present invention.
Reference numeral 5 denotes a hub (HUB) provided between the PBX exchange 3 and the server PC 4 for connection, and generally serves as a center for connecting a plurality of terminals of a personal computer.
31a is a BS control interface module (BSIF) in the PBX switch 3 and interfaced with the BS2, and 31b is also in the PBX switch 3 and a BS control interface module (BSIF) that is interfaced with other BSs. Reference numeral 32 denotes a central processing module (call control) (MCP) that forms the center of a switching function in which a plurality of BSIFs, DIFs, and subscriber lines including the Internet are connected. Reference numeral 33 denotes a data communication control interface module (DIF) connected to the HUB 5 It is.

FIG. 2 shows an example of a call connection procedure at the time of a missed call in the mobile communication system of the present invention as a mobile communication method.
The embodiment according to FIG. 2 is described below. FIG. 2 shows a case where the called party is initially located outside the service area. In such a case, the missed call history can be confirmed by the called party using a normal call connection procedure. Therefore, description of an example of a call connection procedure when the called party is first located in the service area is omitted.
First, PS1a is a call connection state of a wireless mobile terminal located at 7000 and the calling side, and PS1n is a wireless mobile terminal located at the number 7001 and the called side, which is first located outside the range. Call connection status. BS2 is located between a plurality of PS1 and PBX3 exchanges located in the area and indicates the call connection status of the base station. The MCP 32 is in the PBX 3 exchange and is a call connection status of the central processing module (call control).
The DIF 33 is located in the PBX 3 exchange, between the MCP 32 and the server PC 4 via the HUB 5, and is a call connection status of the data communication control interface. The server PC 4 is a call connection status of a computer that provides information such as mail.
S1 is a call connection operation of a call for calling one of the wireless mobile terminals located outside the service area, that is, the number 7000, the caller and the wireless mobile terminal PS1a located within the service area This is a calling step for transmitting a calling signal for calling PS1n of number 7001 to BS2.
S2 is a calling step in which the calling signal transmitted to BS2 in step S1 is continuously transferred from BS2 to MCP 32 in PBX2.
S3 is a calling step in which the calling signal receives call control for exchange of the MCP 32 and is transferred back from the MCP 32 to the BS 2 following the step S2.
S4 is a calling step for transmitting a calling signal for calling PS1n of the number 7001 transferred from the MCP 32 to the BS2 from the BS2 to the PS1n following the step S3. However, since PS1n is located outside the service area, this call signal cannot be received and the call cannot be received.
S5 is the result of the call connection operation, and the other mobile radio terminal is not called, and the exchange system determines that it is out of service area. That is, at the time of step S3, the MCP 32 operates a search timer for recognizing that a predetermined time has elapsed. If the incoming call is not possible at PS1n and there is no incoming call response from PS1n to MCP32 and the search timer times out, MCP32 determines that PS1n is out of service and turns on the out-of-service detection flag. This is an out-of-service message sending step for sending an out-of-service message from the MCP 32 back to the calling PS 1a. Here, it is assumed that PS1a is disconnected.
S51 and S52 notify the server PC of the missed call, and the missed call history in the call connection operation that occurred when the other of the wireless mobile terminals was out of service area is stored in the server PC. At the same time, out-of-service missed call notification at the time of calling PS1n with calling number 7000 to PS1n with out-of-service number is transferred from MCP 32 to server PC 4 via DIF 33 and stored. This is a missed call notification step outside the service area. Here, the missed call history outside the service area such as the calling number, the called number, and the time of occurrence of the event is recorded for each called number as one time. Management information for a predetermined number of times is accumulated.
S6 is a location registration step in which the location registration signal is transmitted from PS1n to BS2 when PS1n is located within the service area. At this stage, the missed call status when the user is still out of service is still unknown.
S7 is a location registration step in which the other mobile mobile terminal moves from outside the service area to within the service area and returns to the service area, that is, a position registration step for transferring and registering the position registration signal received by the BS 2 to the MCP 32.
S71 and S72 receive the result of step S7, and if the terminal PS1n with the number 7001 returns to the service area and performs location registration, if the MCP 32 recognizes that the out-of-service detection flag is ON, a message for service area return notification is sent. This is a zone return notification step that is transferred to the server PC 4 via the DIF 33 and stored.
Note that the MCP 32 transmits an in-area return notification message to the server PC 4 only for the first location registration after sending out-of-range missed call notification messages in steps S51 and S52. Further, the MCP 32 stores the out-of-range detection flag for each PS as data, and records the state of change in the detection state such that the out-of-range detection flag is turned OFF after sending a telescope return notification message.
In S73 and S74, the server PC 4 recognizes each information accumulated in the record of the missed call history outside the service area for each called number in step S52 and the service area return notification in step S72, and receives the called number from the terminal PS1a having the calling number 7000. This is a missed call history notification step outside the service area, in which the missed call history notification outside the service area at the time of calling the terminal PS1n 7001 is transferred to the MCP 32 via the DIF33. After sending the missed call history notification outside the service area, the missed call history information outside the service area is deleted.
S8 and S9 are the other side of the called wireless mobile terminal receiving the message as a notification by e-mail etc. with the missed call history stored in the server PC as a message, that is, forwarding to the MCP 32 in step S74 This is a missed call history notification step outside the service area where the terminal PS1n having the called number 7001 receives the missed call history notification outside the service area and can recognize the missed call history status outside the service area of the terminal.
Therefore, if PS1n is located within the service area, the record of the missed call history when it was out of service is stored in the server PC 4 so that it can be recognized on the PS1n side. This is a communication method for mobile communication.

There is the following notification method example as a method in which the server that has received the missed call notification outside the service area notifies the terminal or the like of the missed call history while out of service area. There are also other notification methods depending on the function of the server.
(1) Method of notifying the PS using the e-mail service and message service This is limited to a case where an environment capable of e-mail service and message service communication is provided between the server and the PS.
If there is a record of missed call history outside the service area when the server receives a message for return notification within the service area, the contents of the missed call history (time, calling number, etc.) outside the service area are sent as an e-mail message. Alternatively, it is a method of notifying the corresponding PS in a message message.
After the server notifies the corresponding PS, the missed call history outside the service area is deleted from the record.
(2) Notification method to other than PS using E-mail In case of environment with only E-mail and not having both E-mail service and message service between the server and PS, a missed call notification was received outside the service area. There is also a method in which the server notifies other required addresses in place of the user's PS by sending an e-mail describing the missed call history outside the service area to an arbitrary address.
In the case of on-premise PHS, etc. where the usable area is limited within the company or office, such as on-premise PHS, and is often located outside the area (out of the area), the address of the destination is set to the home PC or public type By using a mobile phone or the like, it is possible to know the incoming call information in the absence (in the office) in a timely manner.
(3) A method of notifying the missed call history data recorded on the server by viewing from the user side such as a terminal The server posts the missed call history while out of service area on the intranet bulletin board etc. on the server, and the user himself / herself on the bulletin board etc. It is a way to browse the posted information. Notification is made only when a new out-of-service missed call message is received. This method is effective when there is a busy line where a large amount of mail is transmitted, such as when there is a large amount of incoming calls.
The user browses the missed call history outside the service area of the corresponding terminal on a bulletin board on a home page on a server or the like on a PS or personal computer capable of data communication.
Needless to say, the present invention can be applied to a digital cellular system (car phone / mobile phone system) in addition to the above-mentioned PHS and digital cordless telephone system for offices.

  The present invention is applied to a wireless communication system used for mobile communication, and can be used for an in-office communication network, a public communication business, and the like.

It is an example of the system diagram of the mobile communication system of this invention. It is an example of a call connection procedure at the time of a missed call in the mobile communication system of the present invention. It is an example of the system diagram of the conventional mobile communication system. It is an example of a call connection procedure at the time of a missed call in a conventional mobile communication system.

Explanation of symbols

1a, ..., 1n Wireless mobile terminal (PS)
2 Radio base station and antenna (BS)
3 PBX switch 4 Server PC
5 Hub (HUB)
31a, 41b BS control interface module (BSIF)
32 Central processing module (call control) (MCP)
33 Data Communication Control Interface Module (DIF)
S1,... S9, S51, S52, S71,.

Claims (1)

A plurality of wireless mobile terminals having a message receiving function, at least one wireless base station connected to the plurality of wireless mobile terminals via a wireless system, and the wireless base station and a subscriber line are connected A communication method of mobile communication that can be performed with an exchange system,
A server PC connected to the exchange system via a LAN;
A call connection operation of a call for calling one of the plurality of wireless mobile terminals located outside the service area by one of the plurality of wireless mobile terminals is performed, and as a result of the call connection operation, When a call is not received within a predetermined time for another wireless mobile terminal,
The exchange system determines that the other wireless mobile terminal is located outside the service area, and notifies the server PC of the missed call status of the terminal,
The server PC stores the notified missed call status as a missed call history,
When another one of the plurality of wireless mobile terminals moves from outside the service area into the service area and returns to the service area,
The missed call history stored in the server PC is message-transmitted from the server PC to another one of the plurality of wireless mobile terminals.
A communication method of mobile communication in which another one of the plurality of wireless mobile terminals can recognize the missed call history of the terminal.

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