JP2008252762A - Obtaining method of originator information, communication terminal and base station - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of obtaining originator information which, when a communication terminal is called from a telephone number which is not registered in an address book, can provide information of the telephone caller to the received communication terminal without causing an information leakage by a spoofing, etc., the communication terminal and a base station thereof. <P>SOLUTION: By a first step in which, when an originator number is not registered in the address book of the communication terminal, the communication terminal requests the originator information to the base station which relays the corresponding telephone call; a second step in which the base station obtains the originator number of the telephone call which is relayed to the communication terminal concerned from a mobile communication network to send it to the communication terminal; and a third step in which the communication terminal which has received the originator information registers the received originator information in the address book of the communication terminal, the communication terminal which is connected to the mobile communication network obtains the originator information of the telephone call which is received with the originator number being notified. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a caller information acquisition method, a communication terminal, and a base station.

  A caller ID notification service for notifying a communication terminal that has received a telephone number of a communication terminal used for transmission is widely used in mobile communication and fixed communication. Especially in the field of mobile communication, it is common that a communication terminal is provided with an address book function, and the caller ID is retrieved from the address book and registered in the communication terminal that receives the incoming call. It is also common to display the name or leave the caller ID in the incoming call history so that it can be registered in the address book later.

  However, in the existing service, when a call is received from a telephone number that is not registered in the address book, the details of the other party cannot be displayed on the communication terminal that has received the call. Even if the caller number is left in the incoming call history and registered in the address book later, the name of the other party must be entered by himself / herself and cannot be denied. Furthermore, if a plurality of caller numbers that are not registered in the address book remain in the incoming call history, it may be difficult to know which phone number should be associated with a specific name.

  The above problem can be solved by, for example, inquiring the caller number from the mobile communication network and acquiring the caller information in the communication terminal that has received the caller number notification. However, such a method of directly inquiring from the communication terminal to the network is not practical because there is a possibility that information of the caller may be leaked by spoofing (spoofing).

  It is also possible to change the design of the mobile communication network and send the caller information from the network to the communication terminal at the time of incoming call, but this requires a major change in the outgoing / incoming sequence in mobile communication. For this reason, it is not realistic as described above.

Regarding the caller number notification service in the mobile communication network as described above, for example, in Japanese Patent Laid-Open No. 2000-270083, if a caller number and registration information such as a name are registered in a terminal on the receiving side, the caller number A technique for displaying the registration information together with or instead of the caller ID is disclosed. Also, for example, in Japanese Patent Laid-Open No. 2002-247201, when an information source providing unit for registering caller information in a caller number is provided in a communication network, and the terminal does not have caller information for the caller number received Discloses a technique for requesting caller information from a terminal to an information providing unit. However, Japanese Patent Laid-Open No. 2000-270083 is not a technique for handling an incoming call from a caller number that is not registered in the address book, and Japanese Patent Laid-Open No. 2002-247201 is insufficient in measures against information leakage.
JP 2000-270083 A JP 2002-247201 A

  In view of the above circumstances, the present invention can provide information on a call partner to a communication terminal that has received an incoming call from a telephone number not registered in the address book without causing information leakage due to spoofing or the like. An object of the present invention is to provide a method for acquiring caller information, a communication terminal, and a base station.

In order to solve the above-described problem, a first aspect of the present invention is a method in which a communication terminal connected to a mobile communication network acquires caller information of a call received with caller number notification.
When the caller number is not registered in the address book of the communication terminal, the communication terminal requests the caller information from the base station that relays the call;
A second step in which the base station acquires a caller number of a call relayed to the communication terminal from the mobile communication network and transmits the caller number to the communication terminal;
The communication terminal that has received the caller information includes a third step of registering the received caller information in the address book of the communication terminal.

  In the first aspect of the present invention, the first to third steps may be automatically performed when an incoming call is received, and the first to third steps are automatically performed after the call ends. A configuration is also possible. Further, between the second step and the third step, the user of the communication terminal may be inquired as to whether or not the received caller information can be registered in the address book of the communication terminal.

A second aspect of the present invention is a communication terminal that is connected to a mobile communication network and can receive a call with a caller ID notification.
A communication unit that communicates with a base station of a mobile communication network; and
An address data storage unit for storing information about the other party,
It is determined whether or not the caller ID of the call received with the caller ID notification is stored in the address data storage unit. If it is determined that the caller ID is not stored, A signal instructing to acquire information is transmitted from the communication unit to the base station, and the communication unit obtains information on a calling party related to the caller number acquired by the base station and transmitted to the communication terminal. There is provided a communication terminal comprising: a control unit that receives and performs a process of additionally writing to the address data storage unit.

  In the second aspect of the present invention, the control unit may be configured to automatically perform the process when a call with caller number notification is received, and the control unit may It is also possible to employ a configuration in which the above process is automatically performed after the call with notification is terminated. Furthermore, the control unit may perform a process of inquiring whether the user can additionally write information before adding the information of the other party to the address data storage unit.

Further, according to a third aspect of the present invention, in a base station provided on a mobile communication network and capable of relaying a call with a caller ID notification to a communication terminal,
A first communication unit that communicates with a communication terminal;
A second communication unit for communicating with another node of the mobile communication network;
When a signal instructing to acquire information on the other party is received from the communication terminal that has received the call with the caller ID notification relayed, the information on the other party is requested from the mobile communication network, Provided is a base station characterized in that information on the communication partner returned by the mobile communication network is transmitted to the communication terminal.

  According to the present invention, when the caller number is not registered in the address book of the communication terminal, the communication terminal requests the caller information from the base station relaying the call, and the base A second step in which the station obtains the caller number of the call relayed to the communication terminal from the mobile communication network and transmits the caller number to the communication terminal; and the caller received by the communication terminal that has received the caller information. A third step of registering information in the address book of the communication terminal is performed. Therefore, when a call is received from a telephone number not registered in the address book with notification of the caller number, the telephone number can be added to the address book together with the caller information without manually inputting the caller information.

  In the present invention, caller information is not acquired from a communication terminal, but is configured to be performed by a base station that relays a call to the communication terminal. Therefore, even if a caller ID request is received from a communication terminal that has not actually received a caller ID notification, the base station does not respond to such a request. Absent.

  Hereinafter, the best mode for carrying out the present invention will be described. FIG. 1 is a diagram showing a schematic configuration of a communication system that implements a method for acquiring caller information according to an embodiment of the present invention. The communication system 100 includes a mobile communication network 101 having a subscriber database 102, a mobile switching center 103 connected to the mobile communication network 101, and base station controllers 104a and 104b connected to the mobile switching center 103. And base stations 105a to 105f connected to base station controllers 104a and 104b, and communication terminals 110a and 104b.

  The mobile communication network 101 is a network in which a large number of devices such as the mobile switching center 103, the base station controllers 104a and 104b, and the base stations 105a to 105f are connected, and is a communication terminal registered in the user database 102. Are connected to each other and communicate with each other. The mobile communication network 101 is connected to a fixed communication network or another mobile communication network by a gateway exchange (not shown), and can communicate with another terminal connected to these networks. is there.

  The subscriber database 102 is communicably connected to the mobile communication network 101, and the mobile communication network 101 needs a telephone number, a communication terminal identification number, service contract information, a service necessary for providing services to the subscriber. This is a database in which execution information, user address and name, communication terminal position information, and the like are recorded. FIG. 2 is a diagram illustrating an example of a data format recorded in the subscriber database 102. Here, a case where the subscriber database 102 includes a terminal identification number, a telephone number, a user name, a terminal mail address, and terminal location information is shown.

  The mobile switching center 103 is provided between the mobile communication network 101 and the base station controllers 104a and 104b, and any message / data transmitted by any communication terminal within the range of the base stations 104a to 104f is either Are transmitted to the mobile switching center 103 via the base station controllers 104a and 104b. When the mobile switching center 103 receives a message for connecting a line from a communication terminal to another communication terminal, the mobile switching center 103 inquires the subscriber database 102 about the position of the other communication terminal, and performs mobile switching related to the current position of the other communication terminal. A message is routed to a station, and the other communication terminal is called from the routing mobile switching center via the base station controller and the base station to connect the line. For example, when the communication terminal 110a transmits a “message requesting connection to the communication terminal 110b” in the state shown in FIG. 1, the message is transmitted to the mobile switching center 103 via the base station 105a and the base station controller 104a. The mobile switching center 103 inquires of the subscriber database 102 about the location information of the communication terminal 110b. In the state shown in FIG. 1, since it is registered in the subscriber database 102 that the communication terminal 110b is under the control of the same mobile switching center 103, the mobile switching center 103 does not perform routing and does not perform routing. Is transmitted from the base stations 105a to 105f, the base station controller 104b allocates a communication channel, and establishes a line connection with the communication terminal 110b via the base station 105f. In addition, after the line is connected, the mobile switching center 103 performs voice data communication within the connected line to realize a call between communication terminals. Furthermore, in addition to the normal line connection function, the mobile switching center 103 of the present embodiment joins in response to a message requesting caller information of the currently connected call from the base station. The caller information is acquired from the caller database 102, and the caller information is returned to the base station that issued the message.

  The base station controllers 104a and 104b are provided between the mobile switching center 103 and the base stations 105a to 105c or 105d to 105f, and control the operation of each base station connected thereto and the setting of the communication channel. By doing so, handover between base stations, base station resource usage state and communication channel optimization are realized.

  The base stations 105a to 105f are devices that connect to the mobile communication network 101 by wirelessly connecting to communication terminals. FIG. 3 is a functional block diagram of the base station 105 used as the base stations 105a to 105f in the present embodiment. As shown in FIG. 3, the base station 105 includes a radio reception unit 121, a radio transmission unit 122, a base station control device connection unit 123, a control unit 124, and a storage unit 125 including a connection state storage unit 126. Is included.

  Hereinafter, each of the functional blocks constituting the base station 105 will be described. The wireless reception unit 121 and the wireless transmission unit 122 are units for wireless connection and communication with the communication terminals 110a and 110b, respectively, and the base station control device connection unit 123 is connected to the base station control device 104a or 104b described above. It is a part for communicating. The storage unit 125 is a readable / writable memory, and the connection state storage unit 126 includes a combination of telephone numbers of communication terminals currently connected via a communication channel provided via the wireless reception unit 121 and the wireless transmission unit 122. It is stored together with the ID of the communication channel. FIG. 4 is a diagram illustrating an example of a data format stored in the connection state storage unit 126. Here, for each line connection provided by base station 105, communication channel ID, caller number, callee number, and presence / absence of caller number notification are stored in connection state storage unit 126. Indicates.

  Such a base station 105 communicates with a communication terminal that exists in a communicable area using a control channel by using the radio reception unit 121 and the radio transmission unit 122, thereby making a call process and a call process between communication terminal cities. And a process of registering the location of the communication terminal in the user database 102 can be executed. Further, by emphasizing operations with the mobile switching center 103 and the base station control devices 104a and 104b, a function for establishing a communication channel with a communication terminal and providing a line connection is realized. Furthermore, the base station 105 in the present embodiment sends a signal requesting information on the other party of the caller number from the communication terminal connected to the call line that the base station 105 has sent with the caller number. When received by the wireless receiving unit 121, the caller number is notified between the communication terminal related to the caller number and the communication terminal that transmitted the signal with reference to the connection state storage unit 126 of the storage unit 125. It is confirmed that the line is connected, and if the base station 105 has connected the line as such, the subscriber database 102 is connected from the base station controller connection unit 123 via the base station controller 104 and the mobile switching center 103. The caller information is inquired and the obtained caller information is transmitted to the communication terminal. On the other hand, if the base station 105 is not connected to such a line, the process is terminated without inquiring of the sender information to the subscriber database 102.

  The communication terminals 110a and 110b can connect to each other by connecting to the mobile communication network 101 via the base station 105, and can communicate with each other. Further, the communication terminal on the calling side transmits the caller number to the communication on the called side. It is also possible to connect a line in a mode with a caller ID notification that is permitted to be notified to the terminal. FIG. 5 is a functional block diagram of the communication terminal 110 used as the communication terminals 110a and 110b in the present embodiment. As shown in FIG. 5, the communication terminal 110 includes a communication unit 111, a key input unit 112, a display unit 113, a control unit 114, a voice input unit 115, and a storage unit 117.

Hereinafter, functional blocks constituting the communication terminal 110 will be described.
The communication unit 111 is a unit for performing wireless communication with the wireless reception unit 121 and the wireless transmission unit 122 of the base station 105, and is a source for calling another communication terminal by communicating with the base station 105 under the control of the control unit 114. The call processing is performed using the control channel when the communication terminal 110 is called from another communication terminal. Further, the communication unit 111 transmits and receives voice information related to the content of the call while being connected to the base station 105 via a predetermined communication channel. Furthermore, the communication unit 111 requests the caller number of the call received with the caller number notification to the base station 105 under the control of the control unit 114, and the base station 105 obtains and transmits it accordingly. Processing to receive caller information is performed.

  The key input unit 112 has a keypad and various buttons for operating the communication terminal 110, and the contents of the user's operation of these are notified to the control unit 114 described later and used for various controls. . The display unit 113 shows a user interface for operating the communication terminal 110 to the user.

  The control unit 114 includes a CPU and software installed on a memory. The control unit 114 executes various types of functions in the communication terminal 110 by controlling the operation of each unit by executing the software on the CPU. For example, the control unit 114 controls the communication unit 111 to communicate with the base station 105 via the control channel in response to the user operating the key input unit 112 according to the user interface shown on the display unit 130. A calling process for calling another communication terminal is performed, and a function of connecting to the other communication terminal via a communication channel is realized. Further, when the communication terminal 110 is called from another communication terminal, the incoming call processing is performed by communicating with the base station 105 via the control channel, and the line connection is established with the other communication terminal via the communication channel. The function to make a call is realized.

  Further, the control unit 114 of the communication terminal 110 according to the present embodiment determines whether or not the caller number is recorded in the address book 118 after performing the incoming call process for the call with the caller number notification. If not recorded, the caller information is requested to the base station 105 for the caller number via the communication unit 111, and the caller information transmitted from the base station 105 is received by the communication unit 111 in response to the request. Thus, a function of automatically adding to the address book 118 or recording caller information in the incoming call history 119 is realized.

  The voice input unit 115 is a unit that receives voice input from the user when the line is connected, and the voice output unit 116 is a unit that similarly provides voice output to the user when the line is connected. The control unit 114 encodes the voice data input from the voice input unit 115 at the time of line connection and transmits the encoded data from the communication unit 111 to the communication terminal of the line connection destination via the base station 105 or the like. The voice data transmitted from the terminal is received and decoded by the communication unit 111 via the base station 105 or the like, and output from the voice output unit 116.

  The storage unit 117 is a non-volatile memory connected to the control unit 114, and includes an address book 118 that records a telephone number, a mail address, a user name, and the like of a communication terminal that is a communication partner of the communication terminal 110, and the communication terminal 110. And an incoming call history 119 in which a history of incoming calls is recorded. These contents are read out by the control unit 114 when the user operates the key input unit 112 and displayed on the display unit 113. As for the address book 118, data can be added, modified, and deleted by the control unit 114 when the user operates the key input unit 112. Further, by performing a predetermined operation with the key input unit 116 while the incoming call history 119 is displayed on the display unit 113, the caller number and the name of the caller displayed in the incoming call history 119 may be added to the address book 118. Is possible. FIG. 6 shows an example of the data format stored in the incoming call history 119, and FIG. 7 shows an example of the data format stored in the address book 118.

  Hereinafter, the operation | movement which implements the acquisition method of caller information in the communication system 100 concerning this embodiment is demonstrated. Here, a case where communication terminal 100a that has received a call with caller ID notification from communication terminal 110b acquires caller information of communication terminal 100b will be described with reference to the flowchart of FIG.

  In this operation, first, the communication terminal 110b requests transmission to the communication terminal 110a with a caller ID notification, and connects to the base station 105f by performing predetermined call processing. The mobile switching center 103 inquires of the subscriber database 102 to acquire the location information of the communication terminal 110a, and performs a predetermined incoming call process so that the base station 105a connects to the communication terminal 110a. As a result, communication terminal 110a receives a call with a caller ID notification from communication terminal 110b via base station 105a (ST201). At this time, in the base station 105a, while the communication terminal 110a and the communication terminal 110b are line-connected, the communication channel used for the line connection, the caller number (the telephone number of the communication terminal 110b), and the incoming call The connection number storage unit 126 stores the party number (the telephone number of the communication terminal 110a) and the presence / absence of the caller number notification.

  In the communication terminal 110a that has received this incoming call, the telephone number of the communication terminal 110b is added to the address book of the communication terminal 110a by comparing the caller number notified by the control unit 114 with the telephone number recorded in the address book. It is determined whether it is stored (ST202). If it is determined that the information is stored, the caller information does not need to be acquired, and the process ends. On the other hand, when it is determined that the information is not stored, communication terminal 110a requests the caller information of communication terminal 110b from base station 105a (ST203). More specifically, the control unit 114 of the communication terminal 110a controls the communication unit 111 to transmit a signal for requesting caller information for the notified caller number to the base station 105a.

  In base station 105a that has received the caller information request, base station 105a determines whether communication terminal 110a and communication terminal 110b are line-connected with caller number notification (ST204). More specifically, the determination here is a communication channel in which the control unit 124 of the base station 105a reads the connection state storage unit 126 and connects the communication terminal 110a and the communication terminal 110b with a caller ID notification. This can be done by checking the presence or absence.

  If it is confirmed in ST204 that the line is connected, the base station 105a requests the mobile switch 103 to acquire caller information related to the caller number (ST205). On the other hand, when it is not confirmed in ST204 that the communication terminal 110a and the communication terminal 110b are connected to each other, the base station 105a interrupts the process. As a result, it is possible to prevent a communication terminal that has not actually received an incoming call with a caller ID notification from illegally acquiring caller information by spoofing.

  The mobile switching center 103 that has received a request to acquire caller information from the base station 105a in ST205 accesses the subscriber database 102, acquires the caller information, and transmits it to the base station 105a (ST206). Here, as the sender information to be acquired, a user name is typical, but a terminal mail address or the like may be acquired at the same time. Further, when a database other than the subscriber database 102 is provided so that the user can register an image or desired text data as sender information, information from such a database may be acquired together.

  The base station 105a that has received such information transmits the acquired caller information to the communication terminal 110a (ST207), and the communication terminal 110a that has received the information displays the caller information on the display unit 113 (ST208). .

  The steps up to here may be performed after the incoming call until the call is started, or may be performed in parallel with the call. On the other hand, the following steps are performed after the call ends. First, for the ended call, the caller number and caller information are added to the incoming call history 119 together with the incoming call time (ST209). Next, a confirmation screen for adding the caller number and the caller information to address book 118 is displayed on display unit 113 of communication terminal 110a (ST210). This screen is configured so that whether or not additional writing is possible can be input by the key input unit 112, and the control unit 114 determines whether or not the user has performed additional writing according to the input here (ST212), and OK. If so, the sender number and sender information are added to the address field 118 (ST213). On the other hand, if it is determined in ST212 that it is not OK, the process ends.

  According to such an operation, even when a caller ID notification is received from a party not registered in the address book, the caller information is automatically acquired by the communication terminal that has received the call and the call history is recorded. It can be recorded in the address book as needed. For this reason, the caller information is displayed in the incoming call history regardless of whether or not the address book is registered, and the address book is stored without having to memorize the name of the other party and manually enter it later. The telephone number and caller information of the other party can be added to. At this time, it is determined whether the communication terminal requesting the caller information and the communication terminal corresponding to the caller number are connected to each other with a caller ID notification, and only when the line is actually connected Since the information is returned, the sender information is not leaked by an unauthorized request.

  Although it is not easy for mobile telecommunications carriers to disclose user information, in this embodiment, for the other party who is authorized to disclose the telephone number that is his / her personal information with a caller ID notification, In addition, it provides a service that additionally notifies name and e-mail address, where the caller presents his / her personal information to a specific partner he / she has chosen and is actually connected to the line. In some cases, the sender information is returned, and the possibility of implementation is extremely high.

The embodiment of the present invention has been described above, but the present invention is not limited to this, and it is needless to say that various improvements and modifications can be made without departing from the spirit of the present invention.
For example, in the above description, a case where both the communication terminal 110a on the transmission side and the communication terminal 110b on the reception side are connected to the base stations 105a and 105f under the same mobile switching center 103 has been shown. The present invention can be applied even when the mobile switching centers 103 are connected to each other. In the above description, the base station 105 has the connection state storage unit 126, and the base station 105 determines whether the line is actually connected with the caller ID notification. It is also possible to replace the control device 104 and the mobile switching center 103 for implementation. In addition, as a channel for transmitting a message requesting caller information from the communication terminal 110a to the base station 105a, either a control channel or a communication channel may be used. Further, the subscriber database 102 is not limited to the above. For example, the subscriber database 102 may be distributed in a plurality of databases, or the mobile switching center 103 may include the subscriber database 102. .

  Furthermore, a series of processes from when the communication terminal 110 that receives an incoming call with caller ID notification requests caller information to the base station 105 and acquires the caller information is performed after the line is connected and the user makes a call. It may be completed before the start, or may be performed after the user ends the call. Furthermore, the confirmation screen for adding the sender information to the address book can be omitted. Furthermore, in the above, the case of mobile communication using the mobile switching center 103, the base station controller 104 and the base station 105 has been shown, but some of these may be replaced with another network element, Other network elements may be added.

1 is a schematic configuration diagram of a communication system that implements a method for acquiring caller information according to an embodiment of the present invention. The figure which shows an example of the data format recorded on the subscriber database 102 Functional block diagram of base station 105 The figure which shows an example of the data format memorize | stored in the connection state memory | storage part 126 Functional block diagram of communication terminal 110 The figure which shows an example of the data format memorize | stored in the incoming call log | history 119 The figure which shows an example of the data format memorize | stored in the address book 118 The flowchart explaining the operation | movement in one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100; Communication system 101; Mobile communication network 102: Subscriber database 103: Mobile switching center 104a, b; Base station controller 105a-f; Base station 110a, 110b;

Claims (9)

In a method in which a communication terminal connected to a mobile communication network acquires caller information of a call received with a caller ID notification,
When the caller number is not registered in the address book of the communication terminal, the communication terminal requests the caller information from the base station that relays the call;
A second step in which the base station acquires a caller number of a call relayed to the communication terminal from the mobile communication network and transmits the caller number to the communication terminal;
A communication terminal that has received the caller information includes a third step of registering the received caller information in the address book of the communication terminal. The method for obtaining caller information according to claim 1, wherein the first to third steps are automatically performed when an incoming call is received. The method for obtaining caller information according to claim 1, wherein the first to third steps are automatically performed after the call ends. The communication terminal user is inquired whether or not the received caller information can be registered in the address book of the communication terminal between the second step and the third step. Item 4. The caller information acquisition method according to any one of Items 3 to 4. In a communication terminal that can connect to a mobile communication network and receive a call with a caller ID notification,
A communication unit that communicates with a base station of a mobile communication network; and
An address data storage unit for storing information about the other party,
It is determined whether or not the caller number of the incoming call with notification of caller number is stored in the address data storage unit. If it is determined that the caller number is not stored, the caller information related to the caller number is determined. Is transmitted from the communication unit to the base station, and sender information acquired by the base station and transmitted to the communication terminal is received by the communication unit and added to the address data storage unit. A communication terminal comprising a control unit that performs processing. The communication terminal according to claim 5, wherein the control unit automatically performs the process when a call with a caller ID notification is received. The communication terminal according to claim 5, wherein the control unit automatically performs the process after ending a call with a caller ID notification. The said control part performs the process which inquires of the possibility of adding to a user before adding information of the said other party in the said address data storage part, The any one of Claims 5-8 characterized by the above-mentioned. The communication terminal according to item. In a base station provided on a mobile communication network and capable of relaying a call with a caller ID notification to a communication terminal,
A first communication unit that communicates with a communication terminal;
A second communication unit for communicating with another node of the mobile communication network;
When a signal instructing to acquire information on the other party is received from the communication terminal that has received the call with the caller ID notification relayed, the information on the other party is requested from the mobile communication network, A base station characterized by transmitting information on the communication partner returned by the mobile communication network to the communication terminal.

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