JP2006109195A - Telecommunication system, and speech recognition connection service method thereby - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a telecommunication system which uniformly manages phone book information on a cellular phone possessed by individuals using a database managed by a cellular phone business operator, and allows a cellular phone subscriber to connect to a target partner from an arbitrary telephone equipment. <P>SOLUTION: The telecommunication system according to an IN scheme comprises a mobile switching center for receiving an IN service request from an information terminal equipment, a service control point for performing services after receiving the request, and a database for storing information received by the service control point. The system has: a speech recognition function; a special resource function for receiving an activation direction of services from the service control point, and converting speech information on a call sent from a calling party and received by the mobile switching center into text information to send out to the service control point; and a function for retrieving information corresponding to the text information from the database, and automatically forwarding the call to a called party associated with the retrieved information, if there is an information corresponding to the text information. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information communication system using an intelligent network system, and more particularly to an information communication system that enables a subscriber to access and connect to a database from any telephone by voice recognition.

  In recent years, mobile communication terminal devices such as mobile phones and PHS can perform phone number search, call number transmission, function call, etc. using voice recognition technology. For example, you can search the target phone book or phone number based on words spoken to the handset or the device (microphone, external connection device, etc.) that substitutes the name of the other party, and the troublesome manual key operation Is improved.

  As a conventional technique related to the voice recognition function, in a switching system used in a general telephone network, a telephone directory in which a telephone number corresponding to the name spoken by a caller by using the voice recognition technique is generally distributed. A technique for searching from a database in which the data is recorded and transferring to the corresponding number is disclosed (see Patent Document 1). This technology is realized by a system mainly including a telephone exchange, a voice recognition device, and a telephone directory file. If there are multiple registered names, it is possible to further search by address, and if voice recognition is difficult, a function to connect to a phone number guide that humans can handle is also provided. Has been.

  In a mobile phone network equipped with an intelligent network method (hereinafter referred to as IN method), a service control point (hereinafter referred to as SCP) is a service switching function (Service Switching Function). The call transfer service can be activated on the mobile switching center (hereinafter referred to as MSC) by sending an instruction for call transfer to SSF (hereinafter referred to as SSF). 1). In this case, CDR (Call Detail Record) is output in two sections between the caller and the transfer source exchange and between the transfer source exchange and the callee (see Non-Patent Document 2).

  Each of the above-described conventional technologies has a function of recognizing a voice such as a name and address spoken by a caller, searching for a corresponding telephone number from a generally distributed telephone directory database using the information as a key, and connecting the function. Realized. As a result, even when there is no telephone book at hand, it is possible to easily make a call to a target party, and at the same time, the telephone number guidance provided by the telephone carrier is greatly simplified.

Japanese Patent Laid-Open No. 56-064587 3GPP “TS23.078 (Technical Specification Group Core Network; Customized Applications for Mobile network Enhanced Logic (CAMEL) Phase 3-Stage 2 (Release 1999))” 3GPP “TS32.005 (Technical Specification Group Services and System Aspects; Telecommunication management; Charging and billing; 3G call and event data for the Circuit Switched (CS) domain (Release 1999))”

  However, since the database to be searched is a phone book that is generally distributed, it cannot be searched from the phone book provided in a mobile phone or the like managed by each individual. With regard to general phone usage, it is thought that there are more cases where calls are made to phone numbers managed by individuals, and more and more opportunities to use mobile phones are increasing. Since it is considered that there is not a lot of management, there is a possibility that there is no means for searching for a telephone number when there is no mobile phone at hand.

  In addition, when an incoming call transfer is performed by an intelligent network (hereinafter referred to as IN) method provided in an exchange of a cellular phone network, depending on the location of the transfer source exchange, between the caller and the transfer source exchange, and the transfer There is also a concern that the total of the two billing sections between the original exchange and the called party will be longer than the billing section when the caller makes a direct call without using incoming call forwarding.

  Accordingly, the present invention has been made in view of the above-mentioned problems of the information communication system based on the IN system provided in a conventional mobile phone network switch, and an object of the present invention is to provide a mobile phone owned by an individual. A new and improved mobile phone network that allows phone book information to be centrally managed in a database managed by mobile phone operators and allows mobile phone subscribers to connect to desired parties from any telephone such as a public telephone. It is to provide an information communication system based on the IN system provided in the exchange.

  Also, a new and improved mobile phone that can realize a billing mode equivalent to that of a normal call that does not use call forwarding for billing while using the call forwarding function for call control of an exchange It is an object to provide an information communication system using an IN system provided in a network switch.

  In order to solve the above problems, according to an aspect of the present invention, a mobile switching center that receives a request for an intelligent network service from an information terminal device, a service control point that executes a service after receiving the request, In an information communication system using an intelligent network system including a database for storing information received by the service control point, the mobile switching center has a voice recognition function, receives a service start instruction from the service control point, After the voice information from the caller is converted into text information, it is further equipped with a special resource function unit that sends the text information to the service control point. Information corresponding to the text information is searched from the database, and if applicable, automatically Call forwarding to the other party corresponding to the above information And having a function to be executed, the information communication system is provided.

  At this time, the above-described information stored in the database may be transmission destination telephone number information.

  By adopting such a configuration, by using the special resource function unit (hereinafter referred to as SRF) having the above-described IN method and voice recognition function, the exchange and voice recognition which are the conventional technologies are used. The voice recognition connection function configured with the device can be realized only by developing an SCP program. Furthermore, registering phone book information in a mobile phone in a database also includes a location information register (Home Location Register; hereinafter referred to as HLR), which is a database for managing data related to a mobile switching center through mobile communication, and an SCP. It can be realized only by developing a program.

  At this time, a service exchange function is provided between the mobile switching center and the service control point to instruct the service control point to start the IN system service when there is a request for the IN system service from the mobile switching center. In the above incoming call transfer, the transfer system parameter may not be set on the connection instruction signal for the service switching function from the service control point.

  By adopting such a configuration, an MSC having a function of charging from the caller to the final caller without charging for call transfer when there is no transfer parameter in the instruction information from the SSF is realized. As a result, billing for the caller can be made as a billing classification between the caller and the callee as in the case of normal calling.

  In order to solve the above problems, according to another aspect of the present invention, a mobile switching center that receives a request for an intelligent network service from an information terminal device, and a service that executes a service after receiving the request A service control point service having a voice recognition function in a voice recognition connection service method by an information communication system using an intelligent network system including a control point and a database storing information received by the service control point. The information communication system is provided with a special resource function unit for transmitting the text information to the service control point after converting the voice information from the caller received by the mobile switching center into text information after receiving the activation instruction of the mobile switching center. Information registered in the information terminal device in the database Information registration step, a path connection step for connecting a signal path between the special resource function unit and the service control point, and a voice path between another information terminal device and the special resource function unit, and another information terminal A voice recognition connection service method using an information communication system, comprising: a voice recognition step for recognizing voice information from a device by a special resource function unit; and a transmission destination connection step for connecting to a transmission destination based on the voice information. Is provided.

  With this configuration, the phone book information of information terminal devices such as mobile phones owned by individuals is centrally managed in a database managed by the mobile phone operator, and the mobile phone subscriber can select any public phone, etc. A voice recognition connection service by an information communication system is realized by connecting from a telephone to a target party.

  As described above, according to the present invention, when a telephone number is registered to a mobile phone in a mobile phone network having the IN method, the mobile phone is registered in the database for the mobile phone operator at the same time. Even when it is not at hand, it is possible to provide a service for easily making a call by accessing a personal database from any telephone such as a public telephone.

  Further, when the incoming call transfer method based on the IN method is used, it is possible to avoid excessive charging for the caller by making the charge section one between the caller and the callee.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

(First embodiment)
First, the configuration of the information communication system according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration in a case where a mobile phone subscriber registers telephone number information in a telephone directory database in the information communication system 100 according to the first embodiment of the present invention, and FIG. It is a figure which shows the structure of IN system service implementation of an information communication system.

  As shown in FIG. 1, in the information communication system 100 of the present embodiment, the MSC 104 that is wirelessly connected to the information terminal device 102 such as a mobile phone is connected via an HLR 106 that is a database that manages data related to the MSC 104 in mobile communication. Connected to the SCP 108. The SCP 108 provides a user interface for controlling service activation, termination, suspension, continuation, and other services. The HLR 106 and the SCP 108 are connected to databases 110 and 112 that store received data and the like.

  The mobile phone subscriber registers his / her name and phone number in the mobile phone 102. The mobile phone 102 transmits the above name and phone number information to the MSC 104, and the MSC 104 transmits the information to the HLR 106 in a transparent manner.

  The HLR 106 receives the name and phone number from the mobile phone 102 and transfers them to the SCP 108. The SCP 108 transmits the received information to the database 112. The database 112 registers the transmitted information.

  Next, the configuration of the IN system service implementation of the information communication system 100 in the embodiment will be described with reference to FIG.

  As shown in FIG. 2, the caller telephone 114 is connected to the callee telephone 118 via the MSC 104 and the callee exchange 116. An SSF 120 is provided between the MSC 104 and the SCP 108. Further, the SRF 122 is connected to the MSC 104.

  The caller makes a call from an arbitrary telephone 114 such as a fixed telephone or a public telephone with the telephone number for starting this service, and issues the name information of the target party according to the guidance instruction. The MSC 104 accepts an incoming call for this service and reports to the SSF 120 that an IN activation trigger has occurred.

  The SSF 120 receives the IN activation trigger report from the MSC 104 and instructs the SCP 108 to activate the IN. Also, after the IN is activated, a control instruction from the SCP 108 is received, and a call control instruction is sent to the MSC 104 as necessary. The SCP 108 receives this IN activation instruction from the SSF 120 and starts this service.

  According to the service program, information collection from the subscriber, access to the database, and transfer instruction to the corresponding telephone number are performed to the SSF 120. The SRF 122 receives an activation instruction from the SCP 108, sends guidance to the caller, recognizes the voice from the caller, converts it into text information, and sends the information to the SCP 108. The database 112 receives text information from the SCP 108 and converts it into a corresponding telephone number.

  Next, an operation of an IN system service in which a subscriber accesses and connects to a database from an arbitrary telephone by voice recognition of the information communication system in the present embodiment will be described with reference to the drawings. FIG. 3 is a flowchart for explaining the overall operation of the voice recognition connection service by the information communication system 100 according to the present embodiment. FIG. 4 shows the telephone number information of a mobile phone or the like as the information communication system according to the present embodiment. 100 is a flowchart for explaining a method of registering in the database 112 provided in 100, and FIG. 5 is a flowchart for explaining the path connection operation when the IN system service of the information communication system 100 in this embodiment is implemented. FIG. 6 is a flowchart for explaining the speech recognition and operation for connecting to the transmission destination when the IN system service of the information communication system 100 in the present embodiment is implemented.

  First, the overall operation of the voice recognition connection service by the information communication system 100 according to the present embodiment will be described with reference to FIG. As shown in FIG. 3, by recognizing the voice by the information communication system 100 according to the present embodiment, the connection service between the caller side and the callee side is made up of an information registration step S20, a path connection step S30, a voice A recognition step S40 and a transmission destination connection step S50.

  The information registration step S20 is a step of registering the name and telephone number information registered in the mobile phone 102 owned by the mobile phone subscriber in the database 112 provided in the information communication system 100 in the present embodiment. The path connection step S30 is a step of connecting a signal path passing between the SRF 122 and the SCP 108 and a voice path passing between the telephone set 114 and the SRF 122. The voice recognition step S40 is a step in which a mobile phone subscriber makes a call from an arbitrary telephone and causes the portable information communication system of the present embodiment to perform voice recognition. The transmission destination connection step S50 is a step of connecting to the transmission destination based on the recognized voice. The details of each step will be described later.

  Next, an information registration step S20 which is a method for registering telephone number information in a database will be described with reference to FIGS.

  When the mobile phone subscriber registers his / her name and phone number in the mobile phone 102, a message prompting database registration is displayed on the menu on the display of the mobile phone 102 at the same time. If the subscriber permits registration, the mobile phone 102 transmits the name and telephone number information to the MSC 104 by a MAP (Mobile Application Part) signal in accordance with a USSD (Unstructed Supplementary Service Date) procedure. (S202).

  The MSC 104 relays the information to the HLR 106 with a MAP signal (S204). The HLR 106 receives the information and accesses the service subscription information database 110 (S206).

  When this service is registered in the subscriber information on the database 110, the name and telephone number information is transferred to the SCP 108 by the MAP signal (S208).

  The SCP 108 receives the transferred information and transfers it to the database 112 for personal telephone directory data (S210). Then, the transferred information is registered in the database 112 (S212).

  Next, using FIG. 2 and FIG. 5, a path connection process as a path connection method when a mobile phone subscriber makes a call from an arbitrary telephone and performs a voice recognition connection service in the information communication system of the present embodiment S30 will be described.

  First, the mobile phone subscriber makes a call with a telephone number (representative number) for this service from an arbitrary telephone 114 such as a fixed telephone or a public telephone (S300). The MSC 104 receives the call from the telephone 114, translates the telephone number, recognizes that it is a number to access the HLR 106, and transmits the telephone number to the HLR 106 with a MAP signal (S302).

  The HLR 106 recognizes that the telephone number is for the service from the telephone number, and indicates to the MSC 104 that the IN activation is required together with the service number of the service uniquely assigned for the IN activation. Is returned to the MSC 104 (S304). Upon receiving this, the MSC 104 reports to the SSF 120 that there has been an IN activation trigger (S306).

  In response to the report, the SSF 120 notifies the SCP 108 of the IN activation together with the service number by a CAP (CAMEL Application Part) procedure (S308). In response, the SCP 108 activates the program of this service (S310). The SCP 108 requests a connection instruction to the SRF 122 from the SSF 120 by the CAP signal (S312).

  In response to this, the SSF 120 instructs the MSC 104 to connect to the SRF 122 (S314). Accordingly, the MSC 104 connects the CAP signal path and the voice path to the SRF 122 (S316). As a result, the path of the CAP signal is connected between the SRF 122 and the SCP 108 (the MSC 104 and the SSF 120 are transparently relayed), and the voice path is connected between the telephone set 114 and the SRF 122.

  Next, referring to FIG. 2 and FIG. 6, the voice recognition step S40 when the mobile phone subscriber makes a call from any telephone and performs the voice recognition connection service in the information communication system of the present embodiment, and the transmission The pre-connection process S50 will be described.

  After connecting the CAP signal path and the voice path as described above, the SCP 108 sends an instruction to the caller to input the subscriber number and the personal identification number by sending an instruction to the SRF 122 (S400). Then, the SRF 122 transmits the above-described subscriber number and password information received from the caller to the SCP 108 (S402). The SCP 108 confirms the validity of the subscriber number and the personal identification number, and then sends an instruction to the SRF 122 to send guidance prompting the caller to speak the name of the other party to be connected (S404).

  In response to this, the SRF 122 sends a guidance to the caller (S406), and transitions to a voice information input waiting state from the caller. When receiving the voice information of the name from the caller, the SRF 122 converts it into text information, and transmits the text information to the SCP 108 by the CAP signal (S408).

  When the SCP 108 receives it, it instructs the database 112 to perform a search (S410). The database 112 searches for a telephone number corresponding to the text information, and returns the information to the SCP 108 when the corresponding data exists (S412).

  In response to this, the SCP 108 sends an instruction to disconnect the connection to the SRF 122 to the SSF 120 (S502). As a result, the path of the CAP signal and the voice path are returned to the state before the connection of the SRF 122 (S504). In other words, the signal path passing between the SRF 122 and the SCP 108 and the voice path passing between the telephone set 114 and the SRF 122 are disconnected. Thereafter, the SCP 108 further transmits a CAP signal for instructing connection to the corresponding telephone number to the SSF 120 (S506). As a result, the caller telephone 114 and the callee telephone 118 are connected via the MSC 104 and the callee exchange 116 (S508).

  The connection instruction CAP signal used at this time will be described with reference to FIG. On the connection instruction operation 130, in addition to the connection destination number parameter 132 indicating the called party, the transfer information parameter 134, the first called number parameter 136, and the transfer source number parameter 138 (hereinafter referred to as three parameters) are used as parameters to be used for incoming call forwarding. The transfer system parameters are set), but the SCP 108 does not set any of these transfer system parameters.

  At this time, the SSF 120 instructs the MSC 104 to transfer the received telephone number. However, since the transfer system parameter is not set in the connection instruction received from the SCP 108, in this case, the MSC 104 performs call transfer on call control, but the routing information sent to the destination exchange 116 is Only the called number is changed, and no transfer parameters are set.

  Further, in the voice recognition connection service by the information communication system according to the present embodiment, the MSC 104 ignores the transfer source without dividing the billing section into two sections between the caller and the transfer source and between the transfer source and the callee. Thus, it is possible to change the billing section from the caller to one section of the callee.

  The charging section at this time will be described with reference to the drawings. FIG. 8 is an image diagram of a billing section in the connection between the caller telephone 114 and the callee telephone 118 in the voice recognition connection service by the information communication system of the present embodiment. FIG. FIG. 6B is an image diagram when the billing section between the mobile phone and the MSC 104 and the receiving telephone 118 is divided into two sections, and FIG. It is an image figure when it changes to 1 section, without dividing | segmenting.

  In the connection of the telephones 114 and 118 on the caller side and the callee side in a normal information communication system, as shown in FIG. 8 (a), the charging period is the charging period 800 between the calling side telephone 114 and the MSC 104 and the MSC 104- The billing section 802 is divided between the receiving side telephones 118. For this reason, if the MSC 104 is not located on the shortest line 804 connecting the calling telephone 114 and the called telephone 118, the sum of the charging section 800 and the charging section 802 is shown in the connection diagram of FIG. It becomes longer than the billing section 806. For this reason, the caller is charged excessively as compared with the case of normal transmission.

  However, when the calling side telephone and the called side telephone are connected in the voice recognition connection service by the information communication system of the present embodiment, the routing information sent to the called side exchange 116 as described above is only the called number. Since no transfer system parameters are set, the charging section between the calling side telephone 114 and the MSC 104 and between the MSC 104 and the receiving side telephone 118 is not divided, and the charging section is set to 1 as shown in FIG. Since it becomes the same as the case where it changes to a section, it becomes possible to avoid an extra charge.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  For example, in the first embodiment, data such as a telephone number registered in a mobile phone as an information terminal device is registered in a database provided in the information communication system of the present embodiment, and a voice recognition connection service is executed. However, the voice recognition connection service may be executed by registering data such as a telephone number registered in another information terminal device such as a PDA in the database provided in the information communication system of the present embodiment. Is possible.

  The present invention is applicable to an information communication system, and particularly applicable to an information communication system that executes a voice recognition connection service.

FIG. 2 is a diagram showing the configuration of the IN system service implementation of the information communication system in the embodiment. FIG. 3 is a flowchart for explaining the overall operation of the voice recognition connection service by the information communication system in the embodiment. FIG. 4 is a flowchart for explaining a method of registering telephone number information of a mobile phone or the like in a database provided in the information communication system of the present embodiment. FIG. 5 is a flowchart for explaining the path connection operation when the IN system service of the information communication system in the present embodiment is implemented. FIG. 6 is a flowchart for explaining voice recognition and an operation for connecting to a transmission destination when the IN system service of the information communication system 100 according to the present embodiment is implemented. FIG. 7 is a diagram for explaining the configuration of a CAP signal for connection instruction. FIG. 8 is an image diagram of a billing section in the connection between the calling side telephone and the called side telephone in the voice recognition connection service by the information communication system of the embodiment, and (a) is between the calling side telephone and the MSC and the MSC. -It is an image diagram when the billing section between the receiving side telephones is divided into two sections, and (b) is divided into one section without dividing the billing section between the calling side telephone and the MSC and between the MSC and the receiving side telephone. It is an image figure when it changes.

Explanation of symbols

100 Information Communication System 102 Mobile Phone 104 MSC
106 HLR
108 SCP
110, 112 Database 114 Calling telephone 116 Calling exchange 118 Calling telephone 120 SSF
122 SRF

Claims (6)

A mobile switching center that receives an intelligent network service request from an information terminal device; a service control point that executes the service after receiving the request; and a database that stores information received by the service control point. In the information communication system by the intelligent network method,
Having a voice recognition function, receiving an instruction to start the service from the service control point, and converting voice information from the caller received by the mobile switching center into text information; A special resource function section for sending information;
An information communication system characterized by having a function of retrieving the information corresponding to the text information from the database, and automatically causing the other party corresponding to the information to perform incoming call forwarding if applicable.   The information communication system according to claim 1, wherein the information stored in the database is transmission destination telephone number information. A service exchange function is provided between the mobile switching center and the service control point to instruct the service control point to start the service when there is a request for the service from the mobile switching center.
3. The information communication system according to claim 1, wherein, in the incoming call transfer, no transfer system parameter is set on a connection instruction signal for the service switching function from the service control point. A mobile switching center that receives an intelligent network service request from an information terminal device; a service control point that executes the service after receiving the request; and a database that stores information received by the service control point. In a voice recognition connection service method by an information communication system using an intelligent network method,
Having a voice recognition function, receiving an instruction to start the service from the service control point, and converting voice information from the caller received by the mobile switching center into text information; A special resource function unit for transmitting information is provided in the information communication system;
An information registration step of storing information registered in one information terminal device in the database;
A path connection step of connecting a signal path between the special resource function unit and the service control point, and a voice path between another information terminal device and the special resource function unit;
A voice recognition step of recognizing voice information from the other information terminal device by the special resource function unit;
And a transmission destination connection step of connecting to a transmission destination based on the voice information. The speech recognition step includes a step of searching the database for the information corresponding to the text information,
5. The transmission method according to claim 4, wherein the transmission destination connection step includes a step of automatically performing incoming call transfer to a partner corresponding to the information when the information corresponding to the database is included. Voice recognition connection service method by information communication system. A service exchange function is provided between the mobile switching center and the service control point to instruct the service control point to start the service when there is a request for the service from the mobile switching center.
5. The voice recognition connection service method according to claim 4, wherein, in the transmission destination connection step, a transfer system parameter is not set on a connection instruction signal for the service switching function from the service control point. .

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