JP4846015B2 - Communication control apparatus and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To separately establish a session for each of plurality of communication terminals configuring a PAN in response to a session establishment request specifying the PAN in a mobile communication network. <P>SOLUTION: A device 4 for controlling a communication includes: a session control means 4a controlling connections among the communication terminals; and a subscriber information managing means 4b managing a public identifier for specifying the PAN 9 configured by a communication terminal #1 connectable to the mobile communication network 2 together with the communication terminals #2 and #3. The session control means 4a receives call origination indication information requiring the transmission of a call-connection request or a session-connection request to an opposite communication terminal #4 from the communication terminal #3 configuring the PAN 9. The session control means 4a divides the received call origination indication information into call origination indication information to the communication terminals #1 and #2 configuring the PAN 9 and transmits the divided call origination indication information. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention performs communication control between a plurality of communication terminals / devices forming a PAN (Personal Area Network) by user operation or autonomous control of communication terminals / devices, more specifically, a communication control apparatus and method. The present invention relates to a communication control device and a communication control method.

  In mobile communication systems such as conventional GSM (Global System for Mobile Communications) and IMT-2000, SIM (Subscriber Identity Module) or USIM (Universal Subscriber ID (hereinafter referred to as Universal Subscriber IM)) User identification using a card is performed. When a user subscribes to a mobile communication service provided by a mobile communication carrier, the user can use the mobile communication service by purchasing from the mobile communication carrier or using a USIM card provided. .

  Specifically, the user can use the service by attaching the USIM card to the communication terminal to access the mobile communication service to which he / she subscribes using the communication terminal as his / her communication terminal.

  The USIM card stores user subscriber information and identification information (user attribute information such as address, name, and subscription contents, and communication terminal attribute information such as address and telephone number). A communication terminal is treated as having identification information (address, telephone number, etc.) stored in the USIM card by mounting the USIM card.

  On the mobile communication network side, a communication control device provided to control the network manages USIM card information, and stores subscriber information and identification of users stored in the USIM card mounted on the communication terminal. By notifying and registering information to the mobile communication network, the subscriber who uses the communication terminal, that is, the owner of the USIM card attached to the communication terminal is identified. When a communication service is provided to a user, a call to a USIM card, a call to a telephone number, and establishment of a session are processed by the communication control device so as to call and establish a session with a communication terminal equipped with the USIM card. The

  For example, in the case of a telephone service, a telephone number given to a user is managed in a mobile communication network in association with a USIM card, not a communication terminal, and when the USIM card is attached to a certain communication terminal, The communication terminal is treated as having the user's telephone number, and a call to the telephone number is processed to receive the communication terminal. In such a management method using a USIM card, the user can flexibly select an appropriate communication terminal according to his / her preference and situation, and can use the communication terminal as his / her own communication terminal. was there.

  FIG. 12 is a block diagram showing a schematic configuration of a system including subscriber information management, call control / session control in a conventional mobile communication network. The mobile communication network includes a communication terminal 109, a radio access network 106, a core network 104, The multimedia communication control subsystem 100 is configured. The communication terminal 109 is equipped with a USIM card 110 as a device for identifying subscribers of users in use. The radio access network 106 is an access network that provides a means for the communication terminal 109 to access the core network 104 via a radio section, and includes a base station 107, a base station controller 108, and the like. The core network 104 is a network and control system that performs transmission of information between communication terminals, connection control, communication management, and the like, and includes location management information of the communication terminal 109 and subscriber information of a user who uses the communication terminal 109. VLR / HLR (Visible Location Register / Home Location Register) 105, which is a location management server that manages the above.

  In addition, the multimedia communication control subsystem 100 is a subsystem intended to realize an additional function for providing an IP-based multimedia communication service on the packet switching system of the core network 104. The multimedia communication control subsystem 100 includes an application server (AS) 101, a call session control function (CSCF) 102 that provides a session control function between communication terminals, and a subscriber information management device HSS (Home). (Subscriber Server) 103 and the like.

  As a session control protocol, SIP (Session Initiation Protocol) is adopted. The CSCF 102 provides a call and session state control function between communication terminals, and by interacting with a user in SIP or an HSS 103 functioning as a registration server of the communication terminal 109, a user who can use / communicate with the service is provided. In addition to registering status and identification information, it manages and transmits information for controlling the session, and controls session connection.

  In addition, an AS 101 that provides a more advanced application service to the user by using basic functions provided by the multimedia communication control subsystem 100 is provided. The CSCF 102 also has interface means for notifying the AS 101 of information related to the session and the user / communication terminal and accepting control of the session by the AS 101.

  An outline of subscriber information managed by the HSS 103 or the like in a conventional mobile communication network will be described with reference to FIG. Subscriber information of a conventional mobile communication network is hierarchically configured from a private identifier, a public identifier, a service profile, and the like. This private identifier is unique identification information (ID) used by the communication service provider for subscriber management (registration / management of subscribers and available services, approval of access to services, billing, etc.). ).

  In FIG. 13, the private identifier 1 is external to the system because of the nature that the telecommunications carrier only needs to be used within the system to manage its own subscribers, and for security to protect subscriber information. It is sufficient that the information can be managed in a private or unique information format. For example, it is managed in a format called NAI (Network Access Identifier). This private identifier 1 also includes a subscriber identification number for the multimedia communication control subsystem 100. In this system configuration, since multimedia communication control is provided as the subsystem 100, for example, subscriber information for a basic communication service such as a telephone and subscriber information for a multimedia service are included. This is because they need to be managed separately. Only one private identifier 1 is uniquely assigned to one USIM card 110.

  Next, the public identifiers 1 to 3 are IDs that are disclosed and used when a user receives a service or communicates with other users, for example, a telephone number, a mail address, a SIP-URI, or the like. Is included. One USIM card 110 needs to have at least one public identifier, but there may be a plurality. Further, it is not necessary for all public identifiers to be stored in the USIM card 110, and it is sufficient that they are managed in association with the USIM card in the network.

  The service profile is a set of information related to services that the user subscribes to and can use, and includes information such as attributes and provision conditions for the services of the user and the communication carrier. The service profile is managed and stored in association with one or more public identifiers used when using the service. On the other hand, each public identifier is associated with only one service profile.

  The subscriber information described above is transferred from the HSS 103 to the CSCF 102 and stored when the communication terminal 109 is registered in the multimedia communication control subsystem 100. Also provided from the HSS 103 to the AS 101. The HSS 103 that manages the subscriber information is an HSS installed in a USIM home domain owned by the user (a mobile communication network provided by a subscribed communication carrier).

  Next, a case where a communication terminal establishes a session with another communication terminal will be described. First, when a communication terminal starts communication with a partner communication terminal, the communication terminal sends a call connection request specifying a public identifier of the partner communication terminal and a session connection request to the mobile communication network, thereby calling the CSCF. Request session establishment. When CSCF accepts a call request or session connection request, the public identifier of the partner communication terminal included in these is valid, authentication of the caller communication terminal and user, and the requested service can be provided It is confirmed by referring to the subscriber information managed by the HSS, and it is confirmed that the call connection request and the session connection request are valid and can be processed.

  Thereafter, the CSCF sends a call connection request and a session connection request to the partner communication terminal, thereby controlling the call connection and session connection between the partner communication terminal and the caller communication terminal. Here, the CSCF only refers to and confirms the public identifier of the partner communication terminal specified in the call connection request or the session connection request, and rewrites it to the public identifier of another communication terminal. Such processing is not performed.

  Further, when the CSCF accepts a session connection request, the CSCF refers to the service profile managed by the HSS in association with the public identifier specified therein, and makes a call described in the service profile. If the session requested by the session connection request matches the contents, attributes, conditions, etc. of the service that can be used by the original communication terminal and the other communication terminal or can be provided to these communication terminals, the session Control to make a connection. At this time, the CSCF can also control to make a session connection in which the content, type, etc. of the session are changed in accordance with the description of the service profile.

  Next, a session establishment method using SIP will be described with reference to FIG. FIG. 14 shows a procedure when the communication terminal C requests the communication terminal A to establish a session. The communication terminal C transmits a request addressed to the communication terminal A to the session control apparatus (S201). In SIP, this request message is called an INVITE message. When receiving the request from the communication terminal C, the session control apparatus transfers the request to the session control apparatus that manages the communication terminal A, and the request is relayed through one or more session control apparatuses and transmitted to the communication terminal A ( S202). Here, the case where there is one session control device that relays the request, that is, the case where the communication terminal C and the communication terminal A are managed by the same session control device is shown. The communication terminal A that has received the request rings a call bell that informs that there is an incoming call (S203), and the session control device returns a ringing bell that informs the other communication terminal C that the call is in progress (S204). ). This ringing in SIP is called a 180 Ringing response.

  When the user responds by pressing, for example, a telephone reception button, the communication terminal A transmits a response message addressed to the communication terminal C to the session control apparatus (S205), and the session control apparatus communicates with the communication terminal C. A response message from terminal A is transmitted (S206). In SIP, this response message is called a 200 OK response. Upon receiving the response message, the communication terminal C transmits a confirmation message addressed to the communication terminal A to the session control apparatus (S207), and the session control apparatus sends a confirmation message from the communication terminal C to the communication terminal A. Transmit (S208). In SIP, this confirmation message is called an ACK request. The communication terminal or session control apparatus that receives the request may transmit a provisional response to the request transmission side, for example, a message such as 100 Trying, which is not illustrated in this specification. In this way, a session between the communication terminal C and the communication terminal A is established by the request, response, and confirmation.

  When making a request to the communication terminal A, it is possible to specify a codec, an IP address, and the like used for communication by using SDP (Session Description Protocol). This SDP is a session description indicating the session name, identifier, purpose, etc., a time description indicating the session start time, end time and number of repetitions, a media description indicating the IP address, port number, media type, codec, etc. Is a protocol for describing information about secure sessions. Also, by using this SDP, information about a plurality of media that can be held and supported by each communication terminal is described, and further, by describing the priority thereof, a function that is commonly held among communication terminals is provided. A negotiation mechanism is provided that allows confirmation and selection of the optimum session type between the two communication terminals. When making a request to the communication terminal A, for example, the communication terminal A uses H.264 as a video codec. 263, H.I. When information indicating that the H. 261 is supported is included in the SDP, the communication terminal C can select the H.264 supported by the communication terminal C from the two types of video codecs. 261 is selected and H.264 is selected in the SDP of the response message. By including information requesting communication in H.261, both communication terminals have a common H.264 standard. A session using the H.261 video codec is established.

  In such a conventional communication control method, a public identifier made up of address information specified when requesting a call connection or a session connection is managed by the HSS, CSCF, etc. The public identifier of the destination communication terminal is known, and it is necessary for the caller communication terminal to include the public identifier in the call connection request and the session connection request. In other words, the caller communication terminal needs to specify the partner communication terminal in advance and send out a call connection request and a session connection request, and the CSCF only applies to connections between designated communication terminals. However, there was a problem that it was not possible to provide advanced services.

  In future mobile communication networks, when high-quality multimedia services and advanced services that are a complex combination of various functions are provided, users will have multiple communication terminals and devices that can access the network and its services. Own and use these communication terminals and devices according to the user's situation, service content, communication partner, desired quality, etc., and enjoy sufficient service quality and performance. A request to do so arises. In order to satisfy the request, for example, when a user owns a plurality of communication terminals or devices, a small network group (Personal Area Network, hereinafter) is operated by user operation or autonomous control of the communication terminal / device. (Referred to as PAN), and they communicate with each other via PAN, sharing functions according to their characteristics, or using different communication terminals according to their capabilities and attributes Transferring calls and sessions on demand is being considered.

  In addition, as a service provider or a mobile communication carrier, a plurality of communication terminals owned by a user can be managed by collectively managing and controlling communication terminals / device groups that are owned by the same user and constitute a PAN. It is possible to provide advanced services that take attributes and capabilities into account, and by providing services that meet the user's needs as described above, it is possible to improve convenience and efficiency that is consistent with the characteristics and resource allocation of mobile communication networks. Demands to provide an efficient service.

  However, as described above, the conventional communication control method is based on management information on the premise of one-to-one correspondence between one communication terminal equipped with a USIM card and a user who owns and uses the USIM card. Therefore, it is difficult for a user to own a plurality of communication terminals, or conversely, it is difficult to grasp that a plurality of communication terminals belong to the same user. Even if it is configured, it is difficult to control communication from a mobile communication network by treating a group of communication terminals constituting a PAN as a group. Problems in the conventional system are as follows.

(1) Only communication control specified for one communication terminal, or communication control for associating a communication terminal with a user on a one-to-one basis can be performed.
(2) Profile information necessary for communication control of communication terminals constituting a PAN as a group, for example, a session that can be realized by a PAN network structure constituted by a group of communication terminals or a combination of a plurality of communication terminals Information on capabilities, preferences, etc. cannot be managed.
(3) Even if owned by the same user, control for accessing the service cannot be performed by a communication terminal other than the USIM.
(4) Control that allows the user to freely select a communication terminal that uses the service cannot be performed.

  Specifically, even if the user 1 owns or can use a plurality of communication terminals, when another user 2 requests the user 1 to establish a session, the user 2 There is a problem in that it is necessary to make a call by specifying one of the communication terminals owned by the user 1, and it is not possible to use the optimum communication terminal owned by the user 1 and usable. . In addition, there is a problem that the user 1 cannot use the service by selecting an optimum communication terminal from the owned communication terminals according to the type of service and the processing capability required for the service.

  Further, in the conventional mobile communication network, SIP is used as a session control protocol, but SIP is basically a protocol used when a communication terminal and a communication terminal establish a one-to-one session, There is a problem that a many-to-many session cannot be established like a session between communication terminal groups constituting a PAN. In contrast, FIG. 15 shows a communication procedure when establishing a session with a plurality of communication terminals.

  In FIG. 15, the user who owns the communication terminal A and the communication terminal B transmits an individual session establishment request to the communication terminal C from each communication terminal via the session control device (S211 to S214). The communication terminal C that has received the request rings a call bell that informs that there is an incoming call, and the session control device returns a bell ring that informs each of the communication terminals A and B that the call is being performed ( S215-S218). When the user responds, for example, by pressing the reception button of the telephone, the communication terminal C transmits a response message addressed to the communication terminal A to the session control apparatus (S219), and the session control apparatus communicates with the communication terminal A. A response message from terminal C is transmitted (S220). Upon receiving the response message, the communication terminal A transmits a confirmation message addressed to the communication terminal C to the session control apparatus (S221), and the session control apparatus sends a confirmation message from the communication terminal A to the communication terminal C. Transmit (S222). Thereby, the session of the communication terminal A and the communication terminal C is established.

  The communication terminal C transmits a response message addressed to the communication terminal B to the session control apparatus (S223), and the session control apparatus transmits a response message from the communication terminal C to the communication terminal B (S224). ). Upon receiving the response message, the communication terminal B transmits a confirmation message addressed to the communication terminal C to the session control apparatus (S225), and the session control apparatus sends a confirmation message from the communication terminal B to the communication terminal C. Transmit (S226). Thereby, the session of the communication terminal B and the communication terminal C is established. However, in this procedure, the SIP communication procedure described with reference to FIG. 14 is controlled only between the communication terminal C and the communication terminal A and between the communication terminal C and the communication terminal B.

  In such a conventional communication control method, it is difficult to establish a session with a partner communication terminal by multiplexing a plurality of session establishment requests from a group of communication terminals constituting the PAN. It was. In other words, since it is a control method based on SIP, establishing a session between one terminal and a plurality of terminals by requesting individual session establishment from each of the communication terminal groups constituting the PAN Although it is possible, practically, a plurality of one-to-one sessions are established between communication terminals, and a load is applied to the counterpart terminal. Further, in the SIP mechanism, there is no method for sending and receiving information for instructing outgoing calls between communication terminals that constitute a PAN, so negotiations are made between communication terminals when a session establishment request is transmitted from a plurality of communication terminals. There was a problem that it was not possible.

  The present invention has been made in view of the above circumstances, and manages a mobile communication network by adding a public identifier for designating and identifying a PAN constituted by a communication terminal / device owned by a user. Along with the identification information of each communication terminal constituting the PAN, the network configuration of the PAN, the preference of the communication terminal recommended for use corresponding to the service, the profile information necessary for handling the PAN, the public identifier for specifying the PAN In addition, the communication control device is configured to control call connection or session connection by referring to them, and by enabling communication control of a plurality of communication terminals as a group, the user can control PAN. You can use the service by selecting the appropriate communication terminal freely and flexibly, or use multiple services It is an object to provide an apparatus and a method capable of using a single service in combination or making a call from a partner user or a request for establishing a session from a plurality of optimum communication terminals. To do.

  In addition, when a session establishment request is transmitted or responded, a mobile terminal that can manage and control the selection of a communication terminal when establishing a session for one communication terminal among communication terminal groups constituting a PAN. An object is to provide a communication system.

  Furthermore, in response to a plurality of session establishment requests from communication terminals in the PAN, it is possible to establish a session between each communication terminal and the called communication terminal, and to provide a communication service by combining them. And providing a mobile communication system that can use the service without imposing a load on the called communication terminal by multiplexing a plurality of session establishment requests to the called communication terminal. Objective.

A first technical means is a communication control device that controls connection between communication terminals in a mobile communication network, for specifying a group that a communication terminal that can be connected to the mobile communication network configures with other communication terminals. A means for managing one or a plurality of public identification information and a call instruction for requesting transmission of a call connection request or a session connection request to the partner user or the partner communication terminal from the first communication terminal constituting the group Means for receiving information and dividing the received call instruction information into call instruction information for each of a plurality of communication terminals constituting the group.

According to a second technical means, in the first technical means, the communication control device transmits a call instruction information to each of the plurality of communication terminals constituting the group, and a response message to the first communication terminal. And it transmits after receiving the confirmation message from a said 1st communication terminal, It is characterized by the above-mentioned.

According to a third technical means, in the first technical means, the call instruction information from the first communication terminal is a call connection request or a session connection request from the first communication terminal to the counterpart user or the counterpart communication terminal. The communication control device transmits call instruction information to each of a plurality of communication terminals constituting the group, and sends a call connection request or a session connection request from the first communication terminal to the partner user or partner. It has the means to transfer to a communication terminal, It is characterized by the above-mentioned.

According to a fourth technical means, in the first technical means, the call instruction information comprises a public identifier which is information for specifying a partner user or a partner communication terminal which is a destination of a session establishment request as a connection destination. A calling terminal list including a destination terminal list, a public identifier that is information for identifying a communication terminal to which a session establishment request is transmitted, and information indicating what type and attribute session is assigned to each communication terminal The communication control device has means for dividing and transmitting the call instruction information to each public identifier specified by the call terminal list.

According to a fifth technical means, in the fourth technical means, the communication control device comprises means for managing control logic for the group and a public identifier for designating the group in the calling terminal list. Means for selecting a communication terminal for transmitting the call instruction information from the control logic.

A sixth technical means is a communication control device for controlling connection between communication terminals in a mobile communication network, for specifying a group that a communication terminal connectable to the mobile communication network constitutes with other communication terminals. Means for managing one or a plurality of public identification information; means for relaying application data for establishing a session between a plurality of communication terminals constituting the group and a partner user or a partner communication terminal; and the group A call connection request or a session connection request to the partner user or the partner communication terminal is received from the plurality of communication terminals constituting the terminal, and the partner user or the partner communication terminal is sent from the plurality of communication terminals to the partner user or the partner communication terminal. The session included in each call connection request or session connection request to the communication terminal It means for transmitting a call connection request or a session connection request including the session type information that integrates Deployment type information is obtained by further comprising a.

According to a seventh technical means, in the sixth technical means, the call connection request or session connection request to the counterpart user or counterpart communication terminal is information for specifying a communication terminal that transmits a session establishment request. Calling terminal list including identifier and information indicating the type and attribute of the session to be assigned to each communication terminal, and requests for session establishment are simultaneously transmitted from a plurality of communication terminals specified in the calling terminal list Session connection instruction information indicating that the session type is included, and the communication control device, based on the session connection instruction information, includes a session type included in each of the call connection request or the session connection request to the partner user or the partner communication terminal. It has a means for transmitting session type information that integrates information. It is intended.

An eighth technical means is the seventh technical means, wherein the communication control device receives session combination instruction information from a first communication terminal constituting the group and transmits a response message to the first communication terminal. And after receiving a confirmation message from the first communication terminal, a call connection request or a session connection request to the counterpart user or the counterpart communication terminal is received from each of a plurality of communication terminals constituting the group. It is a thing.

A ninth technical means is the seventh technical means, wherein the communication control device receives a response message to the call connection request or session connection request to the counterpart user or the counterpart communication terminal, Means for separately transmitting a response message to each of the designated communication terminals, and when confirmations for responses to the communication terminals included in the calling terminal list are received from all the communication terminals included in the calling terminal list And a means for sending a confirmation for a response from the counterpart user or the counterpart communication terminal.

A tenth technical means is a communication control device for controlling connection between communication terminals in a mobile communication network, for specifying a group that a communication terminal connectable to the mobile communication network constitutes with other communication terminals. Means for managing one or a plurality of public identification information; means for relaying application data for establishing a session between a plurality of communication terminals constituting the group and a partner user or a partner communication terminal; and the group Receiving a call instruction information requesting to transmit a call connection request or a session connection request to a plurality of communication terminals constituting the group with the counterpart user or the counterpart communication terminal from the first communication terminal constituting the group, Send a call connection request or session connection request to a plurality of communication terminals constituting the group Call connection including session type information obtained by multiplexing session type information included in each of call connection requests or session connection requests to a plurality of communication terminals constituting the group, And a means for transmitting a request or a session connection request.

An eleventh technical means is the tenth technical means, wherein the communication control device sends a call connection request or a session connection request to a plurality of communication terminals constituting the group and a response message to the first communication terminal. And transmitting after receiving the confirmation message from the first communication terminal.

A twelfth technical means is the tenth technical means, wherein the call instruction information from the first communication terminal is a call connection request or session connection request from the first communication terminal to the counterpart user or the counterpart communication terminal. And the communication control device transmits a call connection request or a session connection request to each of a plurality of communication terminals constituting the group, and receives the call connection request or the session connection request from the first communication terminal as the partner. It has a means to transfer to a user or a partner communication terminal.

A thirteenth technical means is the tenth technical means, wherein the call instruction information is a public identifier which is information for specifying a partner user or a partner communication terminal which is a destination of a request for session establishment as a connection destination, respectively. Calling terminal comprising: a destination terminal list including information indicating what type and attribute session is assigned to the communication terminal of the communication terminal; and a public identifier that is information for specifying a communication control apparatus that transmits a session establishment request The communication control device is configured to divide and transmit call instruction information to each public identifier specified by the destination terminal list, and call connection to a plurality of communication terminals constituting the group Request or session connection request, call connection request or session connection request to the partner user or partner communication terminal Means for configuring the session type to divide into each communication terminal included in the calling terminal list, is obtained by further comprising a.

If fourteenth technical means is the thirteenth technical means, wherein the communication control device, the means for managing the control logic for the group, the public identifier for specifying the group to the destination terminal list is specified, the And a means for selecting a communication terminal to transmit a call connection request or a session connection request from the control logic.

According to a fifteenth technical means, in the thirteenth technical means, the communication control device receives the call connection request or the response message for the session connection request to the plurality of communication terminals constituting the group, and then receives the partner user. Alternatively, means for transmitting a call connection request or session connection request to the partner communication terminal and a response message to the call connection request or session connection request to the partner user or partner communication terminal are received from the partner user or partner communication terminal. And a means for transmitting a confirmation message to each of the communication terminals included in the calling terminal list.

A sixteenth technical means is a communication control method of a communication control apparatus for controlling connection between communication terminals in a mobile communication network, wherein a group of communication terminals connectable to the mobile communication network is configured with other communication terminals. One or a plurality of public identification information for identification is managed, and a call connection request or a session connection request to the partner user or the partner communication terminal is transmitted from the first communication terminal constituting the group. The requested call instruction information is received, and the received call instruction information is divided into call instruction information for each of a plurality of communication terminals constituting the group and transmitted.

In a seventeenth technical means, in the sixteenth technical means, the communication control device transmits a call instruction information to each of a plurality of communication terminals constituting the group, and a response message to the first communication terminal. And it transmits after receiving a confirmation message from a said 1st communication terminal, It is characterized by the above-mentioned.

According to an eighteenth technical means, in the sixteenth technical means, the call instruction information from the first communication terminal is a call connection request or a session connection request from the first communication terminal to the counterpart user or the counterpart communication terminal. And the communication control device transmits call instruction information to each of a plurality of communication terminals constituting the group, and sends a call connection request or a session connection request from the first communication terminal to the partner user or partner. It is characterized by being transferred to a communication terminal.

According to a nineteenth technical means, in the sixteenth technical means, the call instruction information comprises a public identifier which is information for specifying a partner user or a partner communication terminal that is a destination of a session establishment request as a connection destination. A calling terminal list including a destination terminal list, a public identifier that is information for identifying a communication terminal to which a session establishment request is transmitted, and information indicating what type and attribute session is assigned to each communication terminal And the communication control device divides and transmits the call instruction information to each public identifier specified by the call terminal list.

According to a twentieth technical means, in the nineteenth technical means, the communication control apparatus manages control logic for the group, and a public identifier for designating the group is designated in the calling terminal list. A communication terminal that transmits call instruction information is selected from the control logic.

A twenty-first technical means is a communication control method of a communication control apparatus for controlling connection between communication terminals in a mobile communication network, wherein a group of communication terminals connectable to the mobile communication network is configured with other communication terminals. Manages one or more public identification information for identification, and relays application data to establish a session between a plurality of communication terminals constituting the group and a partner user or a partner communication terminal Receiving a call connection request or a session connection request to the partner user or the partner communication terminal from the plurality of communication terminals constituting the group, and sending the partner user or the partner communication terminal from the partner communication terminal to the partner user or the partner communication terminal. Included in each call connection request or session connection request to the user or partner communication terminal It is obtained by and transmits a call connection request or a session connection request including the session type information that integrates session type information that.

According to a twenty-second technical means, in the twenty-first technical means, the call connection request or session connection request to the counterpart user or counterpart communication terminal is information for specifying a communication terminal that transmits a session establishment request. Calling terminal list including identifier and information indicating the type and attribute of the session to be assigned to each communication terminal, and requests for session establishment are simultaneously transmitted from a plurality of communication terminals specified in the calling terminal list The session type included in each of the call connection request or the session connection request to the partner user or the partner communication terminal based on the session binding instruction information. It is characterized by sending session type information that integrates information. That.

In a twenty- third technical means, in the twenty-second technical means, the communication control apparatus receives session combination instruction information from a first communication terminal constituting the group, and transmits a response message to the first communication terminal. And after receiving a confirmation message from the first communication terminal, a call connection request or a session connection request to the counterpart user or the counterpart communication terminal is received from each of a plurality of communication terminals constituting the group. It is a thing.

According to a twenty-fourth technical means, in the twenty-second technical means, after the communication control device receives a response message to the call connection request or session connection request to the counterpart user or counterpart communication terminal, A response message is transmitted separately to each designated communication terminal, and when confirmations for responses to the communication terminals included in the calling terminal list are received from all communication terminals included in the calling terminal list, A confirmation for a response from the partner user or the partner communication terminal is transmitted.

A twenty-fifth technical means is a communication control method of a communication control device for controlling connection between communication terminals in a mobile communication network, wherein a group of communication terminals connectable to the mobile communication network is configured with other communication terminals. Manages one or more public identification information for identification, and relays application data to establish a session between a plurality of communication terminals constituting the group and a partner user or a partner communication terminal Calling instruction information for requesting transmission of a call connection request or a session connection request from the first communication terminal constituting the group to the partner user or the partner communication terminal and a plurality of communication terminals constituting the group. Receiving a call connection request or session connection request to a plurality of communication terminals constituting the group. Call connection request including session type information obtained by multiplexing session type information included in each of call connection requests or session connection requests to a plurality of communication terminals constituting the group. Alternatively, a session connection request is transmitted.

According to a twenty-sixth technical means, in the twenty-fifth technical means, the communication control device sends a call connection request or a session connection request to a plurality of communication terminals constituting the group, and a response message to the first communication terminal. And transmitting after receiving a confirmation message from the first communication terminal.

In a twenty-seventh technical means, in the twenty-fifth technical means, the call instruction information from the first communication terminal is a call connection request or a session connection request from the first communication terminal to the counterpart user or the counterpart communication terminal. And the communication control device transmits a call connection request or a session connection request to each of a plurality of communication terminals constituting the group, and receives the call connection request or the session connection request from the first communication terminal as the partner. It is characterized by transferring to a user or a partner communication terminal.

According to a twenty-eighth technical means, in the twenty-fifth technical means, the call instruction information includes a public identifier that is information for specifying a destination user of a session establishment request or a destination communication terminal as a connection destination, respectively. Calling terminal comprising: a destination terminal list including information indicating what type and attribute session is assigned to the communication terminal of the communication terminal; and a public identifier that is information for specifying a communication control apparatus that transmits a session establishment request And the communication control device divides and transmits the call instruction information to each public identifier specified by the destination terminal list, and calls connection requests to a plurality of communication terminals constituting the group or The session connection request is a session connection request or session connection request to the other user or the other communication terminal. Is obtained by characterized in that it constitutes a down type so as to divide the respective communication terminals included in said calling terminal list.

In a twenty- ninth technical means, in the twenty-eighth technical means, the communication control apparatus manages control logic for the group, and when a public identifier for designating the group is designated in the destination terminal list, A communication terminal that transmits a call connection request or a session connection request is selected from the control logic.

A thirtieth technical means is the communication device according to the twenty-eighth technical means, wherein the communication control apparatus receives all response messages for call connection requests or session connection requests to a plurality of communication terminals constituting the group, and Alternatively, when a call connection request or session connection request is transmitted to the partner communication terminal, and a response message to the call connection request or session connection request to the partner user or partner communication terminal is received from the partner user or partner communication terminal. A confirmation message is sent to each communication terminal included in the calling terminal list.

According to the present invention, in a session establishment request from a PAN, it is possible to divide and establish each session with a plurality of communication terminals constituting the PAN.
In addition, when a request for session establishment is transmitted simultaneously from a plurality of communication terminals, it is possible to negotiate session division and to issue a call with each communication terminal.

It is a figure which shows the example of schematic structure of the mobile communication network system which is one Embodiment of this invention. It is a figure which shows the structural schematic example of the subscriber information containing the information for managing PAN in this invention. It is a figure for demonstrating an example of the communication procedure which divides | segments and establishes a session with a some communication terminal. It is a figure for demonstrating the other example of the communication procedure which divides | segments and establishes the session of a some communication terminal. It is a figure for demonstrating the other example of the communication procedure which divides | segments and establishes a session with a some communication terminal. It is a figure for demonstrating an example of the communication procedure which multiplexes and establishes the session of a some communication terminal. It is a figure for demonstrating the other example of the communication procedure which multiplexes and establishes the session of a some communication terminal. It is a figure for demonstrating the other example of the communication procedure which multiplexes and establishes the session of a some communication terminal. It is a figure for demonstrating the other example of the communication procedure which multiplexes and establishes the session of a some communication terminal. It is a figure for demonstrating the other example of the communication procedure which multiplexes and establishes the session of a some communication terminal. It is a figure for demonstrating the other example of the communication procedure which multiplexes and establishes the session of a some communication terminal. It is a block diagram showing a schematic configuration of a system including subscriber information management, call control / session control in a conventional mobile communication network. It is a figure which shows the outline of the subscriber information managed by HSS etc. in the conventional mobile communication network. FIG. 5 is a diagram for explaining a procedure when a communication terminal C requests the communication terminal A to establish a session. It is a figure for demonstrating the communication procedure at the time of establishing a session with a some communication terminal.

  FIG. 1 is a diagram showing a schematic configuration example of a mobile communication network system according to an embodiment of the present invention, in which 1 is an application server, 2 is a mobile communication network, 3 is a core network, 4 is a communication control device, 5, 6 and 7 are radio access networks, 8a, 8b and 8c are radio sections, 9 is a PAN, and 10 is a USIM card. The communication terminals # 1 to # 3 constitute a PAN 9, and the USIM card 10 is attached to the communication terminal # 1 so that it can be connected to the mobile communication network 2. The communication terminal # 4 is a communication terminal that is a communication partner of the communication terminals # 1 to # 3.

  The mobile communication network 2 of the present invention is composed of radio access networks 5, 6, 7 and a core network 3. The radio access networks 5, 6, and 7 are access networks that provide means for the communication terminals # 1 to # 3 to access the core network 3 via the radio sections 8a, 8b, and 8c. Station and base station management system. The core network 3 is a network and control system for performing transmission of information, connection control, communication management, and the like between the communication terminal # 4 and the communication terminals # 1 to # 3 as communication partners, and includes a communication control device 4. The communication control device 4 includes session control means 4a for performing connection control, session management, etc. between the communication terminal # 4 and the communication terminals # 1 to # 3, and position management information of the communication terminals # 1 to # 3. And subscriber information management means 4b for managing subscriber information of users using communication terminals # 1 to # 3, subscriber information database 4c for storing subscriber information of each subscriber, communication partner A media gateway 4d that converts application data during a session connection between the communication terminal # 4 and the communication terminals # 1 to # 3.

  In the mobile communication network 2 of the present invention, the control function of the multimedia communication service is provided in the core network 3, so that the functions provided in the multimedia communication control subsystem in the prior art are the functions of the core network 3. Included as part of the function. More specifically, functions such as CSCF and HSS in the prior art are included in the session control means 4a and the subscriber information management means 4b of the communication control device 4, respectively.

  The communication terminal # 1 is equipped with the USIM card 9, and the subscriber identifier stored in the USIM card 9 is registered in the subscriber information management means 4b of the communication control device 4. In addition, the communication terminal # 1 constitutes a PAN 9 that is a small network group together with the communication terminal # 2 and the communication terminal # 3. The communication terminal # 1 is connected to the radio access network 5 via the radio sections 8a, 8b, and 8c, and further to the core network 3 ahead of the communication terminal # 1, and has a connection means from the PAN 9 to the mobile communication network 2. . The communication terminal # 2 is a communication terminal that is not attached with the USIM card 10 but has means for connecting to the mobile communication network 2. The communication terminal # 3 is one of the communication terminals that constitute the PAN 9 although the USIM card 10 is not attached and no connection means to the mobile communication network 2 is provided. In addition, when connecting to the mobile communication network 2, the communication terminal # 3 is connected via the communication terminal # 1 or the communication terminal # 2 having a connection means.

  In the subscriber information management means 4b, information on the PAN 9 formed by the communication terminal # 1, the communication terminal # 2, and the communication terminal # 3, and identification information and attribute information of these communication terminals are registered and managed. The subscriber information management means 4b manages subscriber information corresponding to the subscriber identifier. The association between a private identifier, a public identifier, a service profile, and the like, which are subscriber information of individual communication terminals, is the same as that in the related art. In addition, in the subscriber information management means 4b, as the public identifier for the PAN 9, and the profile information of the PAN 9 associated therewith, the identification information of the communication terminals constituting the PAN 9, information for managing, controlling, and using the PAN 9 Etc. are included. These subscriber information, PAN 9 information, etc. are stored and stored in the subscriber information database 4c connected to the subscriber information management means 4b, and are read, rewritten, deleted, etc. from the subscriber information management means 4b as needed. Access is possible.

  The session control means 4a processes a session connection request from a certain user (communication terminal) to another user (communication terminal), and acquires subscriber information of the connection destination user from the subscriber information management means 4b. Reference is made and session connection control with the communication terminal of the connection destination is performed. Further, the session control means 4a determines whether or not the processing in the application server 1 is necessary from the subscriber information, obtains instructions and information from the application server 1 as necessary, and controls to connect an appropriate session. Control the transfer of data. The application server 1 provides an application service such as an advanced multimedia communication service on a session for which establishment is requested, as in the conventional technology. Further, when it is necessary to perform complicated session control, a function for connecting a session, such as an instruction and control to the session control means 4a, is supported.

  Further, the session control means 4a determines whether the processing in the media gateway 4d is necessary based on the subscriber information and the type and attribute of the requested session, and connects the appropriate session to the media gateway 4d and the session if necessary. Control the transfer of data. The media gateway 4d relays a session between the connection source communication terminal and the connection destination communication terminal, and relays application data transmitted using the session and performs conversion as necessary. For example, the application data from the connection source is divided into a plurality of types such as audio and moving images, and the session is connected to a plurality of communication terminals corresponding to the divided media.

  Also, as a process in the opposite direction, the application data transmitted using each session with the plurality of communication terminals is multiplexed as one application data and connected to the connection source communication terminal. Is transmitted to the communication terminal. The control performed between the media gateway 4d and the session control unit 4a can be realized in an integrated manner with the control between the application server 1 and the session control unit 4a described above. As described above, the function of the media gateway 4d can be integrated into the application server 1, and in this case, the application server 1 also provides the service of the media gateway 4d. As a control protocol for the media gateway 4d, for example, H.264 is used. 248 (Megaco) or the like is used.

An example of a method for managing a group of communication terminals constituting a PAN as a group in the mobile communication network system described above will be described.
FIG. 2 is a diagram showing a schematic configuration example of subscriber information including information for managing a PAN in the present invention. In the figure, the subscriber information database 4c stores and stores subscriber information of each subscriber to the mobile communication service. In the present invention, in addition to conventional subscriber information, a PAN public identifier is stored and managed as PAN 9 information. The public identifier is information such as a telephone number, a mail address, and a SIP-URI for identifying and specifying the communication terminal when the communication terminal performs communication control such as call connection and session connection, as in the prior art. Although it is a so-called communication terminal address, the public identifier for PAN does not specify one of the communication terminals constituting PAN 9 and requests a call connection or session connection, but collects a group of these communication terminals collectively. Used to specify.

  In the example shown in FIG. 2, two public identifiers 1 and 2 are managed as public identifiers for PAN. The reason why the plurality of public identifiers are assigned to the same PAN 9 is that the identification information / address system, description method, and the like differ depending on the type and attribute of the service. For example, a telephone number is used as identification information in the telephone service, and a mail address is used in electronic mail. In the example of FIG. 2, the public identifier 1 is assigned a telephone number, and the public identifier 2 is assigned a SIP-URI. Further, the plurality of public identifiers can be used as, for example, alias addresses (aliases) for the same service type.

  A PAN profile that is information necessary for managing the PAN 9 is managed in association with a public identifier for the PAN. The PAN profile includes communication terminal information 1 to 3 of the communication terminal # 1, the communication terminal # 2, and the communication terminal # 3 in addition to the same service profile that indicates the attributes, types, conditions, and the like of services that can be used as the PAN 9. In addition, a session establishment condition table indicating the contents and types of sessions that can be processed and used by each communication terminal is managed.

  The public identifier for PAN and the PAN profile associated therewith are different from the subscriber information of the communication terminal in which the USIM card is mounted, and does not have a private identifier, that is, unique identification information of the USIM card. Therefore, in the subscriber information database 4c, the information on the PAN 9 can be managed independently of the USIM card and the subscriber information of the communication terminal, or one of the communication terminals constituting the PAN 9, for example, It can also be managed in association with the private identifier of communication terminal # 1. In any case, even when PAN 9 is configured, the public identifier and service profile of communication terminal # 1 before configuring PAN 9 are not affected. Therefore, the PAN profile is referred to for a call connection request and a session connection request specifying a public identifier for PAN, and for a connection request specifying a public identifier of communication terminal # 1, communication terminal # is used as usual. One service profile is referenced.

  In addition, since the communication terminal # 1 is the only one in which the USIM card 10 is mounted in the PAN 9, these pieces of information are the home domain of the USIM card 10 (the movement provided by the subscribed communication carrier). It is managed by the subscriber information management means 4b installed in the communication network.

  FIG. 3 is a diagram for explaining an example of a communication procedure for establishing a session with a plurality of communication terminals. In this example, the description will be based on the system configuration shown in FIG. 1, but the communication terminals # 1, # 2, and # 3 constituting the PAN 9 are communication terminals A, B, and D, and the partner communication terminal # 4 is The communication terminal C will be described.

  The user requests the other user or the communication terminal C to establish a session from among a group of communication terminals constituting the PAN 9, and which communication terminal shares the session. To decide. When the communication terminal A and the communication terminal B are selected, the communication terminal D uses the communication means between the communication terminals constituting the PAN 9 to connect the other user or the communication terminal C to the communication terminal A and the communication terminal B. Call instruction information requesting to transmit a session establishment request as a destination is transmitted (S1 to S6).

  The call instruction information includes a destination terminal list including a public identifier that is information for specifying a destination user or destination communication terminal that is a destination of a session establishment request as a connection destination, and a communication terminal that transmits a session establishment request. This is a calling terminal list including a public identifier, which is information for identifying a session, and information indicating what type and attribute session is assigned to each communication terminal. That is, the information indicates how the communication terminal A and the communication terminal B divide the type and attribute of the session established by the PAN 9 and the communication terminal C.

  In addition, in order to give the callee a degree of freedom of session assignment, the calling terminal list includes a session type, a media type, a codec type, etc. that each communication terminal can receive, Information indicating the priority of the session type, media type, codec type, and the like desired to be received by each communication terminal may be included.

  When the communication terminal A and the communication terminal B finish the transmission of the response message to the communication terminal D and the reception of the confirmation message from the communication terminal D, they transmit a session establishment request to the communication terminal C (S7 to S10). After that, as in the conventional example, the communication terminal C that has received the request rings a call bell that informs that there is an incoming call, and the communication control device 4 indicates that the communication is in progress for each of the communication terminals A and B. The bell ringing for notifying is returned (S11 to S14). When the user responds by pressing, for example, a telephone reception button, the communication terminal C transmits a response message addressed to the communication terminal A to the communication control device 4 (S15), and the communication control device 4 communicates with the communication terminal A. A response message from the communication terminal C is transmitted to (S16). Upon receiving the response message, the communication terminal A transmits a confirmation message addressed to the communication terminal C to the communication control device 4 (S17), and the communication control device 4 confirms the communication terminal C with the confirmation from the communication terminal A. A message is transmitted (S18). Thereby, the session of the communication terminal A and the communication terminal C is established.

  Similarly, the communication terminal C transmits a response message addressed to the communication terminal B to the communication control device 4 (S19), and the communication control device 4 sends a response message from the communication terminal C to the communication terminal B. Is transmitted (S20). Upon receiving the response message, the communication terminal B transmits a confirmation message addressed to the communication terminal C to the communication control device 4 (S21), and the communication control device 4 confirms the communication terminal C with the confirmation from the communication terminal B. A message is transmitted (S22). Thereby, the session of the communication terminal B and the communication terminal C is established.

  In this way, a session is established between the communication terminal A and the communication terminal C, and between the communication terminal B and the communication terminal C, and by using these sessions collectively, the application service requested by the user can be changed between the users. Provided.

  FIG. 4 is a diagram for explaining another example of a communication procedure for dividing and establishing sessions of a plurality of communication terminals. The user uses the communication terminal D from the communication terminal group constituting the PAN 9 to determine what kind of session establishment is requested to the other user or the communication terminal C, and to the session control means 4a. The call instruction information is transmitted (S31). Upon receiving the call instruction information from the communication terminal D, the session control means 4a transmits a response message to the communication terminal D (S32) and receives a confirmation message from the communication terminal D (S33).

  The call instruction information includes a destination terminal list including a public identifier that is information for specifying a destination user or destination communication terminal that is a destination of a session establishment request as a connection destination, and a communication terminal that transmits a session establishment request. This is a calling terminal list including a public identifier, which is information for identifying a session, and information indicating what type and attribute session is assigned to each communication terminal. In this example, a public identifier that identifies the counterpart user or the communication terminal C is specified in the destination terminal list. Further, the control of the session control means 4a differs depending on the information specified by the calling terminal list.

  When a public identifier that designates PAN 9 is specified in the calling terminal list, the communication control device 4 selects which communication terminal to transmit the call instruction information according to the control logic specified in advance (this The communication terminal A and the communication terminal B), the call instruction information received from the communication terminal D is divided, and for the communication terminal A and the communication terminal B, the session type, media type, codec to be established by each communication terminal The calling instruction information including the type is transmitted (S34, S37). That is, the session control means 4a performs control to divide the call instruction information received from the communication terminal D and transfer it to the communication terminal A and the communication terminal B.

  When a plurality of communication terminals constituting the PAN 9 are specified in the calling terminal list, the communication control device 4 sets the session type, media type, codec to be established for each of the communication terminals included in the calling terminal list. The call instruction information including the type is transmitted. The calling terminal list includes a public identifier of each communication terminal and session allocation information (session type, media type, codec type, etc. to be established) for each communication terminal. That is, the session control means 4a performs control for dividing the call instruction information received from the communication terminal D and transferring it to the communication terminals A and B included in the call terminal list.

  In addition, in order to give the callee the flexibility of session assignment, the calling terminal list includes the session type, media type, codec type, etc. that can be received by each communication terminal, respectively. Information indicating the priority of the session type, the media type, the codec type, and the like desired to be received by the communication terminal.

  When the communication terminal A and the communication terminal B finish the transmission of the response message to the session control unit 4a and the reception of the confirmation message, respectively (S35, S36, S38, S39), the communication terminal A or communication terminal B or the communication terminal B A session establishment request is transmitted to terminal C (S40 to S43). Thereafter, in S44 to S55, as in the conventional example, a session is established between the communication terminal A and the communication terminal C, and between the communication terminal B and the communication terminal C. Provided between users.

  In this embodiment, when the session control means 4a receives the call instruction information from the communication terminal D, the session control means 4a transmits a response message to the communication terminal D and receives a confirmation message from the communication terminal D. Even if transmission of call instruction information to each of A and communication terminal B, reception of a response message, transmission of a confirmation message, transmission of a response message to communication terminal D and reception of a confirmation message from communication terminal D may be performed. Good.

  FIG. 5 is a diagram for explaining another example of a communication procedure for establishing a session by dividing a plurality of communication terminals. The user requests the other user or the communication terminal C to establish a session from the communication terminal group constituting the PAN 9 and which communication terminal shares the session. And transmits a message including the call instruction information and a session establishment request from the communication terminal A to the other user or the communication terminal C to the session control means 4a (S61). In the embodiment described with reference to FIG. 4, the session control means 4a receives the call instruction information and transfers the call instruction information to the selected communication terminal. In this embodiment, however, the communication terminal A Transmits the session establishment request together with the call instruction information, the session control means 4a transfers the session establishment request from the communication terminal A to the communication terminal C and also performs divided transfer of the call instruction information. (S62).

  The call instruction information includes a destination terminal list including a public identifier that is information for specifying a destination user or destination communication terminal that is a destination of a session establishment request as a connection destination, and a communication terminal that transmits a session establishment request. This is a calling terminal list including a public identifier, which is information for identifying a session, and information indicating what type and attribute session is assigned to each communication terminal. In this example, a public identifier that identifies the counterpart user or the communication terminal C is specified in the destination terminal list. Further, the control of the session control means 4a differs depending on the information specified by the calling terminal list.

  When a public identifier that designates PAN 9 is specified in the calling terminal list, the communication control device 4 selects which communication terminal to transmit the call instruction information according to the control logic specified in advance (this Communication terminal B), from the call instruction information received from communication terminal A, call instruction information including the session type, media type, codec type and the like to be established by each communication terminal is transmitted to communication terminal B. Transmit (S63). That is, the session control means 4a divides the call instruction information received from the communication terminal A (in the present embodiment, the transfer destination is only the communication terminal B, and thus the division is not performed), and the PAN 9 is configured. Control to transfer to the communication terminal.

  When a plurality of communication terminals constituting the PAN 9 are specified in the calling terminal list, the communication control device 4 sets the session type, media type, codec to be established for each of the communication terminals included in the calling terminal list. The call instruction information including the type is transmitted. The calling terminal list includes a public identifier of each communication terminal and session allocation information (session type, media type, codec type, etc. to be established) for each communication terminal. In other words, the session control means 4a divides the call instruction information received from the communication terminal A (in this embodiment, the transfer destination is only the communication terminal B, and no division is performed), and the call terminal list. Is transferred to the communication terminal B included.

  In addition, in order to give the callee the flexibility of session assignment, the calling terminal list includes the session type, media type, codec type, etc. that can be received by each communication terminal, respectively. Information indicating the priority of the session type, the media type, the codec type, and the like desired to be received by the communication terminal.

  When communication terminal B finishes sending the response message to session control means 4a and receiving the confirmation message (S64, S65), it sends a session establishment request to the other user or communication terminal C according to the call instruction information. (S66, S67). Thereafter, in S68 to S79, as in the conventional example, a session is established between the communication terminal A and the communication terminal C, and between the communication terminal B and the communication terminal C. Provided between users.

  FIG. 6 is a diagram for explaining an example of a communication procedure for establishing a session by multiplexing a plurality of communication terminals. The user selects the communication terminal A and the communication terminal B from the communication terminal group constituting the PAN 9, and simultaneously transmits a session establishment request addressed to the other user or the communication terminal C from the communication terminal A and the communication terminal B. A session establishment request including session connection instruction information indicating that the communication terminal A and the communication terminal B are to be transmitted is transmitted from each of the communication terminals A and B (S81, S82).

  The session connection instruction information includes a public identifier that is information for specifying a communication terminal that transmits a session establishment request, and information indicating what type and attribute session is assigned to each communication terminal. This is information indicating that a session establishment request is simultaneously transmitted from a plurality of communication terminals specified in the terminal list and the calling terminal list. This session connection instruction information is included in the request of either communication terminal A or communication terminal B. This is because when the session control unit 4a determines whether the request is a divided session establishment request, the request that does not include the session connection instruction information is processed as it is as a normal request.

  The session control means 4a manages state information indicating the state of the processing procedure for establishing a session between the communication terminal A and the communication terminal B. When the session control unit 4a receives a session establishment request including the session connection instruction information from the communication terminal A or the communication terminal B, the session control unit 4a refers to the state information and establishes the session from all the communication terminals included in the calling terminal list. Wait until the request is received. When the session control means 4a receives all the session establishment requests specified by the session association instruction information, it combines the session types and attributes included in the session establishment requests received from the communication terminal A and the communication terminal B. Then, it is transmitted as one request to the communication terminal C (S83). A public identifier for designating PAN 9 is designated as the transmission source of this request.

  When receiving a response message from the communication terminal C (S84), the session control means 4a refers to the state information, generates a response message to the communication terminal A and the communication terminal B, and transmits the response message to each communication terminal ( S85, S86). When the response message from the communication terminal C includes information for changing the session type and attribute or information selected from the candidate for the session type and attribute, the session control unit 4a, according to a predetermined control logic, Response messages for the communication terminals A and B are generated. When receiving a confirmation message from each of the communication terminals A and B (S87, S88), the session control means 4a generates a confirmation message for the communication terminal C and transmits it to the communication terminal C (S89).

  Here, the application data transmitted on the session with the communication terminal C is divided into application data transmitted in the session with the communication terminal A and the session with the communication terminal B (data transmitted in the reverse direction). When the session is terminated or relayed once when the session with the communication terminal C is divided, the session control means 4a determines that these sessions are media. The gateway 4d is controlled to relay, and the media gateway 4d is controlled and instructed to perform necessary division / multiplex processing.

  According to the example of the procedure shown here, the communication terminal C, as a session established with the PAN 9, without being conscious of which communication terminal in the PAN 9 is established, Communication can be performed using a session.

  FIG. 7 is a diagram for explaining another example of a communication procedure for establishing a session by multiplexing a plurality of communication terminals. The user requests the other user or the communication terminal C to establish a session from among a group of communication terminals constituting the PAN 9, and which communication terminal shares the session. And the session connection instruction information is transmitted to the session control means 4a (S91).

  When the communication terminal A and the communication terminal B are selected, the communication terminal D uses the communication means between the communication terminals that constitute the PAN 9 in advance to generate the session connection instruction information. After negotiating with B by exchanging information, dividing the session, and allocating the type and attribute assigned to each session, the communication terminal D transmits session connection instruction information. You can also At that time, it is also possible to use call instruction information for requesting transmission of a session establishment request destined for the other user or communication terminal C described above.

  The session connection instruction information includes a public identifier that is information for specifying a communication terminal that transmits a session establishment request, and information indicating what type and attribute session is assigned to each communication terminal. This is information indicating that a session establishment request is simultaneously transmitted from a plurality of communication terminals specified in the terminal list and the calling terminal list. When the session control means 4a receives the session connection instruction information from the communication terminal D, the session control means 4a transmits a response message (S92) and receives a confirmation message (S93). When the user confirms that the session connection instruction information from the communication terminal D is permitted, the user transmits a session establishment request addressed to the other user or the communication terminal C from the communication terminal A and the communication terminal B (S94, S95). ).

  The session control means 4a manages state information indicating the state of the processing procedure for establishing a session between the communication terminal A and the communication terminal B. When the session control unit 4a receives the confirmation message from the communication terminal D, the session control unit 4a refers to the state information and waits until a session establishment request is received from all of the communication terminals included in the calling terminal list. When the session control unit 4a receives all the session establishment requests specified by the session association instruction information, the session control unit 4a combines the session types and attributes included in the session establishment requests received from the communication terminals A and B, It transmits to the communication terminal C as one request (S96). A public identifier for designating PAN 9 is designated as the transmission source of this request.

  When receiving a response message from the communication terminal C (S97), the session control means 4a refers to the state information, generates a response message to the communication terminal A and the communication terminal B, and transmits the response message to each communication terminal ( S98, S99). When the response message from the communication terminal C includes information for changing the session type and attribute or information selected from the candidate for the session type and attribute, the session control unit 4a, according to a predetermined control logic, Response messages for the communication terminals A and B are generated. When receiving a confirmation message from each of the communication terminals A and B (S100, S101), the session control means 4a generates a confirmation message for the communication terminal C and transmits it to the communication terminal C (S102).

  Here, the application data transmitted on the session with the communication terminal C is divided into application data transmitted in the session with the communication terminal A and the session with the communication terminal B (data transmitted in the reverse direction). When the session is terminated or relayed once when the session with the communication terminal C is divided, the session control means 4a determines that these sessions are media. The gateway 4d is controlled to relay, and the media gateway 4d is controlled and instructed to perform necessary division / multiplex processing.

  According to the example of the procedure shown here, the communication terminal C, as a session established with the PAN 9, without being conscious of which communication terminal in the PAN 9 is established, Communication can be performed using a session.

  In this embodiment, when the session control means 4a receives the session connection instruction information from the communication terminal D, the session control means 4a transmits a response message to the communication terminal D and receives a confirmation message from the communication terminal D. After receiving all the session establishment requests specified by the instruction information, a response message may be transmitted to the communication terminal D and a confirmation message from the communication terminal D may be received.

  FIG. 8 is a diagram for explaining another example of a communication procedure for establishing a session by multiplexing a plurality of communication terminals. The user requests the other user or the communication terminal C to establish a session from the communication terminal group constituting the PAN 9 and which communication terminal shares the session. And transmits a message including the call instruction information and a session establishment request from the communication terminal A to the other user or the communication terminal C to the session control means 4a (S111).

  The call instruction information includes a destination terminal list including a public identifier that is information for specifying a destination user or destination communication terminal that is a destination of a session establishment request as a connection destination, and a communication terminal that transmits a session establishment request. This is a calling terminal list including a public identifier, which is information for identifying a session, and information indicating what type and attribute session is assigned to each communication terminal. In this example, a public identifier that identifies the counterpart user or the communication terminal C is specified in the destination terminal list. Further, the control of the session control means 4a differs depending on the information specified by the calling terminal list.

  When a public identifier that designates PAN 9 is specified in the calling terminal list, the communication control device 4 selects which communication terminal to transmit the call instruction information according to the control logic specified in advance (this Communication terminal B), from the call instruction information received from communication terminal A, call instruction information including the session type, media type, codec type and the like to be established by each communication terminal is transmitted to communication terminal B. Transmit (S112). That is, the session control means 4a divides the call instruction information received from the communication terminal A (in the present embodiment, the transfer destination is only the communication terminal B, and thus the division is not performed), and the PAN 9 is configured. Control to transfer to the communication terminal.

  When a plurality of communication terminals constituting the PAN 9 are specified in the calling terminal list, the communication control device 4 sets the session type, media type, codec to be established for each of the communication terminals included in the calling terminal list. The call instruction information including the type is transmitted. The calling terminal list includes a public identifier of each communication terminal and session allocation information (session type, media type, codec type, etc. to be established) for each communication terminal. In other words, the session control means 4a divides the call instruction information received from the communication terminal A (in this embodiment, the transfer destination is only the communication terminal B, and no division is performed), and the call terminal list. Is transferred to the communication terminal B included.

  In addition, in order to give the callee the flexibility of session assignment, the calling terminal list includes the session type, media type, codec type, etc. that can be received by each communication terminal, respectively. Information indicating the priority of the session type, the media type, the codec type, and the like desired to be received by the communication terminal.

  When the communication terminal B transmits the response message to the session control means 4a (S113) and finishes receiving the confirmation message (S114), the communication terminal B requests the other user or the communication terminal C to establish a session according to the call instruction information. Is transmitted (S115).

  The session control means 4a manages state information indicating the state of the processing procedure for establishing a session between the communication terminal A and the communication terminal B. When the session control unit 4a receives a session establishment request including the session connection instruction information from the communication terminal A or the communication terminal B, the session control unit 4a refers to the state information and establishes the session from all the communication terminals included in the calling terminal list. Wait until the request is received. When the session control means 4a receives all the session establishment requests specified by the session association instruction information, it combines the session types and attributes included in the session establishment requests received from the communication terminal A and the communication terminal B. Then, it is transmitted as one request to the communication terminal C (S116). A public identifier for designating PAN 9 is designated as the transmission source of this request.

  When receiving a response message from the communication terminal C (S117), the session control means 4a refers to the state information, generates a response message for the communication terminal A and the communication terminal B, and transmits the response message to each communication terminal ( S118, S119). When the response message from the communication terminal C includes information for changing the session type and attribute or information selected from the candidate for the session type and attribute, the session control unit 4a, according to a predetermined control logic, Response messages for the communication terminals A and B are generated. When receiving a confirmation message from each of the communication terminals A and B (S120, S121), the session control means 4a generates a confirmation message for the communication terminal C and transmits it to the communication terminal C (S122).

  Here, the application data transmitted on the session with the communication terminal C is divided into application data transmitted in the session with the communication terminal A and the session with the communication terminal B (data transmitted in the reverse direction). When the session is terminated or relayed once when the session with the communication terminal C is divided, the session control means 4a determines that these sessions are media. The gateway 4d is controlled to relay, and the media gateway 4d is controlled and instructed to perform necessary division / multiplex processing.

  According to the example of the procedure shown here, the communication terminal C, as a session established with the PAN 9, without being conscious of which communication terminal in the PAN 9 is established, Communication can be performed using a session.

  FIG. 9 is a diagram for explaining another example of a communication procedure for establishing a session by multiplexing a plurality of communication terminals. The user uses the communication terminal D from the communication terminal group constituting the PAN 9 to determine what kind of session establishment is requested to the other user or the communication terminal C, and to the session control means 4a. The call instruction information is transmitted (S131). Upon receiving the call instruction information, the session control means 4a transmits a response message to the communication terminal D (S132) and receives a confirmation message from the communication terminal D (S133).

  The call instruction information includes a destination terminal list including a public identifier that is information for specifying a destination user or destination communication terminal that is a destination of a session establishment request as a connection destination, and a communication terminal that transmits a session establishment request. This is a calling terminal list including a public identifier, which is information for identifying a session, and information indicating what type and attribute session is assigned to each communication terminal. In this example, a public identifier that identifies the counterpart user or the communication terminal C is specified in the destination terminal list. Further, the control of the session control means 4a differs depending on the information specified by the calling terminal list.

  When a public identifier that designates PAN 9 is specified in the calling terminal list, the communication control device 4 selects which communication terminal to transmit the call instruction information according to the control logic specified in advance (this The communication terminal A and the communication terminal B), the call instruction information received from the communication terminal D is divided, and for the communication terminal A and the communication terminal B, the session type, media type, codec to be established by each communication terminal The calling instruction information including the type is transmitted (S134, S137). That is, the session control means 4a performs control to divide the call instruction information received from the communication terminal D and transfer it to the communication terminal A and the communication terminal B.

  When a plurality of communication terminals constituting the PAN 9 are specified in the calling terminal list, the communication control device 4 sets the session type, media type, codec to be established for each of the communication terminals included in the calling terminal list. The call instruction information including the type is transmitted. The calling terminal list includes a public identifier of each communication terminal and session allocation information (session type, media type, codec type, etc. to be established) for each communication terminal. That is, the session control means 4a performs control for dividing the call instruction information received from the communication terminal D and transferring it to the communication terminals A and B included in the call terminal list.

  In addition, in order to give the callee the flexibility of session assignment, the calling terminal list includes the session type, media type, codec type, etc. that can be received by each communication terminal, respectively. May include information indicating the priority of the session type, media type, codec type, and the like desired to be received by the communication terminal.

  The communication terminal A and the communication terminal B respectively transmit a response message to the session control means 4a (S135, S138), and when receiving the confirmation message (S136, S139), according to the call instruction information, Alternatively, a session establishment request is transmitted to the communication terminal C (S140, S141).

  The session control means 4a manages state information indicating the state of the processing procedure for establishing a session between the communication terminal A and the communication terminal B. When the session control unit 4a receives a session establishment request including the session connection instruction information from the communication terminal A or the communication terminal B, the session control unit 4a refers to the state information and establishes the session from all the communication terminals included in the calling terminal list. Wait until the request is received. When the session control means 4a receives all the session establishment requests specified by the session association instruction information, it combines the session types and attributes included in the session establishment requests received from the communication terminal A and the communication terminal B. Then, it is transmitted as one request to the communication terminal C (S142). A public identifier for designating PAN 9 is designated as the transmission source of this request.

  When receiving a response message from the communication terminal C (S143), the session control means 4a refers to the state information, generates a response message to the communication terminal A and the communication terminal B, and transmits the response message to each communication terminal ( S144, S145). When the response message from the communication terminal C includes information for changing the session type and attribute or information selected from the candidate for the session type and attribute, the session control unit 4a, according to a predetermined control logic, Response messages for the communication terminals A and B are generated. When receiving a confirmation message from each of the communication terminals A and B (S146, S147), the session control means 4a generates a confirmation message for the communication terminal C and transmits it to the communication terminal C (S148).

  Here, the application data transmitted on the session with the communication terminal C is divided into application data transmitted in the session with the communication terminal A and the session with the communication terminal B (data transmitted in the reverse direction). When the session is terminated or relayed once when the session with the communication terminal C is divided, the session control means 4a determines that these sessions are media. The gateway 4d is controlled to relay, and the media gateway 4d is controlled and instructed to perform necessary division / multiplex processing.

  According to the example of the procedure shown here, the communication terminal C, as a session established with the PAN 9, without being conscious of which communication terminal in the PAN 9 is established, Communication can be performed using a session.

  In this embodiment, when the session control means 4a receives the call instruction information from the communication terminal D, the session control means 4a transmits a response message to the communication terminal D and receives a confirmation message from the communication terminal D. Even if transmission of call instruction information to each of A and communication terminal B, reception of a response message, transmission of a confirmation message, transmission of a response message to communication terminal D and reception of a confirmation message from communication terminal D may be performed. Good.

  FIG. 10 is a diagram for explaining another example of a communication procedure for establishing a session by multiplexing a plurality of communication terminals. The user requests the other user or the communication terminal C to establish a session from among a group of communication terminals constituting the PAN 9, and which communication terminal shares the session. And the call instruction information is transmitted to the session control means 4a (S151). Upon receiving the call instruction information, the session control means 4a transmits a response message to the communication terminal D (S152) and receives a confirmation message from the communication terminal D (S153).

  The call instruction information includes a public identifier, which is information for specifying a partner user or a partner communication terminal that is a destination of a session establishment request as a connection destination, and a session of any type and attribute assigned to each communication terminal. This is a calling terminal list including a destination terminal list including information indicating the above and a public identifier that is information for specifying a communication terminal that transmits a session establishment request. In this example, a public identifier that identifies the session control means 4a is specified in the calling terminal list. Further, the control of the session control means 4a differs depending on the information included in the destination terminal list.

  When the public identifier that designates PAN 9 and the public identifier that designates the counterpart user or communication terminal C are specified in the destination terminal list, the communication control device 4 determines which communication terminal the session to which communication terminal according to the control logic specified in advance. Select whether to send a request for establishment (in this case, communication terminal A and communication terminal B), and for communication terminal A and communication terminal B, the session type, media type, codec type, etc. that each communication terminal should establish A request for session establishment including is transmitted (S154, S156). The session control means 4a transmits a session establishment request to a public identifier that designates a communication terminal that constitutes the PAN 9 and a public identifier that designates the other user or the communication terminal C. Therefore, the calling side and the called side are explicitly specified in the destination terminal list. In the destination terminal list, a public identifier that designates a partner user or a partner communication terminal is explicitly distinguished from a public identifier that designates a PAN. Further, the information indicating the session assignment to each of the PAN 9 and the other user or the communication terminal C is the same. The session control means 4a transmits a session establishment request to each communication terminal previously selected according to the control logic.

  When a plurality of communication terminals constituting the PAN 9 and a partner user or the communication terminal C are specified in the destination terminal list, the communication control device 4 determines the session type to be established for each of the communication terminals included in the destination terminal list. A session establishment request including the media type and codec type is transmitted. In the destination terminal list, the session identifier information (session type, media type, codec type, etc. to be established) for each communication terminal is associated with the public identifier of the communication terminal constituting the PAN 9, and the partner user or communication terminal The public identifier of C is associated with information obtained by integrating the type and attribute of the session assigned to each communication terminal constituting the PAN 9.

  In addition, in order to give the callee the flexibility of session assignment, the destination terminal list includes the session type, media type, codec type, etc. that each communication terminal can receive, Information indicating the priority of the session type, the media type, the codec type, and the like desired to be received by the communication terminal.

  The session control means 4a manages state information indicating the state of the procedure for establishing a session with the communication terminal A, the communication terminal B, and the other user or the communication terminal C. When the session control unit 4a transmits a request for establishing a session to each of the communication terminal A and the communication terminal B, the session control unit 4a refers to the state information and waits until response messages are received from all of the communication terminals constituting the PAN 9. Upon receiving all response messages (S155, S157), the session control means 4a transmits a session establishment request to the communication terminal C (S158). At this time, the session type and attribute specified by the response message received from the communication terminal constituting the PAN 9 are combined and transmitted to the communication terminal C as one request.

  When the session control means 4a receives the response message from the communication terminal C (S159), the session control means 4a refers to the state information, generates confirmation messages to the communication terminal A, the communication terminal B, and the communication terminal C, and each communication terminal (S160, S161, S162). When the session type and attribute are changed in the response message from the communication terminal C, session establishment is reconfigured for the communication terminal A and the communication terminal B.

  Here, the application data transmitted on the session with the communication terminal C is divided into application data transmitted in the session with the communication terminal A and the session with the communication terminal B (data transmitted in the reverse direction). When the session is terminated or relayed once when the session with the communication terminal C is divided, the session control means 4a determines that these sessions are media. The gateway 4d is controlled to relay, and the media gateway 4d is controlled and instructed to perform necessary division / multiplex processing.

  According to the example of the procedure shown here, the communication terminal C, as a session established with the PAN 9, without being conscious of which communication terminal in the PAN 9 is established, Communication can be performed using a session.

  In this embodiment, when the session control means 4a receives the call instruction information from the communication terminal D, the session control means 4a transmits a response message to the communication terminal D and receives a confirmation message from the communication terminal D. Even if transmission of call instruction information to each of A and communication terminal B, reception of a response message, transmission of a confirmation message, transmission of a response message to communication terminal D and reception of a confirmation message from communication terminal D may be performed. Good.

  FIG. 11 is a diagram for explaining another example of a communication procedure for establishing a session by multiplexing a plurality of communication terminals. The user requests the other user or the communication terminal C to establish a session from the communication terminal group constituting the PAN 9 and which communication terminal shares the session. And transmits a message including call instruction information and a session establishment request from the communication terminal A to the other user or the communication terminal C to the session control means 4a (S171). In the embodiment described with reference to FIG. 10, the session control means 4a receives the call instruction information and transmits a session establishment request to the selected communication terminal. In this embodiment, the communication terminal A Since the session establishment request is transmitted together with the call instruction information, the session control unit 4a transfers the session establishment request from the communication terminal A to the communication terminal C, and based on the call instruction information, Send a request for establishment.

  The call instruction information includes a public identifier, which is information for specifying a partner user or a partner communication terminal that is a destination of a session establishment request as a connection destination, and a session of any type and attribute assigned to each communication terminal. This is a calling terminal list including a destination terminal list including information indicating the above and a public identifier that is information for specifying a communication terminal that transmits a session establishment request. In this example, a public identifier that identifies the session control means 4a is specified in the calling terminal list. Further, the control of the session control means 4a differs depending on the information included in the destination terminal list.

  When the public identifier that designates PAN 9 and the public identifier that designates the counterpart user or communication terminal C are specified in the destination terminal list, the communication control device 4 determines which communication terminal the session to which communication terminal according to the control logic specified in advance. Select whether to send a request for establishment (in this case, communication terminal B), and request communication establishment B to establish a session including the session type, media type, codec type, etc. that each communication terminal should establish. Transmit (S172). The session control means 4a transmits a session establishment request to a public identifier that designates a communication terminal that constitutes the PAN 9 and a public identifier that designates the other user or the communication terminal C. Therefore, the calling side and the called side are specified in the destination terminal list. In the destination terminal list, information integrating session allocation information (session type, media type, codec type, etc. to be established) for the public identifier specifying PAN9 and the public identifier specifying communication terminal A is the partner user or partner communication. Corresponds to the public identifier that specifies the terminal. The session control means 4a transmits a session establishment request to each communication terminal previously selected according to the control logic.

  When a plurality of communication terminals constituting the PAN 9 and a partner user or the communication terminal C are specified in the destination terminal list, the communication control device 4 determines the session type to be established for each of the communication terminals included in the destination terminal list. A session establishment request including the media type and codec type is transmitted. In the destination terminal list, the session identifier information (session type, media type, codec type, etc. to be established) for each communication terminal is associated with the public identifier of the communication terminal constituting the PAN 9, and the partner user or communication terminal The public identifier of C is associated with information obtained by integrating the type and attribute of the session assigned to each communication terminal constituting the PAN 9.

  In addition, in order to give the callee the flexibility of session assignment, the destination terminal list includes the session type, media type, codec type, etc. that can be received by each communication terminal, as well as the respective types. Information indicating the priority of the session type, media type, codec type, etc. that the communication terminal wants to receive may be included.

  The session control means 4a manages state information indicating the state of the procedure for establishing a session with the communication terminal A, the communication terminal B, and the other user or the communication terminal C. When the session control unit 4a transmits a session establishment request to the communication terminal B, the session control unit 4a waits until a response message is received from the communication terminal B. When receiving a response message from the communication terminal B (S173), the session control means 4a transmits a session establishment request to the communication terminal C (S174). At this time, by combining the session type and attribute specified in the response message received from the communication terminal constituting the PAN 9 with the session type and attribute specified in the session establishment request from the communication terminal A, one A request is transmitted to the communication terminal C.

  When the session control means 4a receives the response message from the communication terminal C (S175), the session control means 4a refers to the state information and generates a response message to the communication terminal A and a confirmation message to the communication terminal B and the communication terminal C. Then, it transmits to each communication terminal (S176 to S179). When the session type and attribute are changed in the response message from the communication terminal C, session establishment is reconfigured for the communication terminal A and the communication terminal B.

  Here, the application data transmitted on the session with the communication terminal C is divided into application data transmitted in the session with the communication terminal A and the session with the communication terminal B (data transmitted in the reverse direction). When the session is terminated or relayed once when the session with the communication terminal C is divided, the session control means 4a determines that these sessions are media. The gateway 4d is controlled to relay, and the media gateway 4d is controlled and instructed to perform necessary division / multiplex processing.

  According to the example of the procedure shown here, the communication terminal C, as a session established with the PAN 9, without being conscious of which communication terminal in the PAN 9 is established, Communication can be performed using a session.

  In the embodiments shown in FIG. 6 to FIG. 11 described so far, one session is divided into sessions with a plurality of communication terminals constituting the PAN 9, selection of communication terminals at that time, and types of the respective sessions. In the above description, the session control means 4a performs determination and determination of assignment of attributes and the like. However, the application server 1 can also be configured to perform advanced processing related to the contents of these sessions.

  In this case, the session control means 4a realizes basic processing and control functions such as session establishment and division, and is transmitted over the session such as session type and attribute, media and codec type and attribute, etc. The application server 1 executes processing related to application data. In other words, when the session control unit 4a receives a session establishment request from the communication terminal C, the session attributes, types, and the like requested by the request are set as the capabilities, attributes, and the like of the communication terminals constituting the connection destination PAN 9. Is notified to the application server 1. The application server 1 acquires subscriber information related to the PAN 9 from the subscriber information management unit 4b, and divides the session based on the information from the session control unit 4a and the information from the subscriber information management unit 4b. Determination, selection of a communication terminal, the type and attribute of a session to be assigned to the communication terminal, and the necessity of relaying in the media gateway 4d are determined, determined, and instructed to the session control means 4a.

  The session control means 4a refers to this instruction and executes procedures such as session division and session establishment. By adopting such a configuration, it is possible to provide a flexible and highly flexible configuration that can deal with new or advanced services by simply providing the application server 1 without changing the session control means 4a in the future.

  In FIGS. 3, 4, 7, 9, and 10 described so far, the communication terminal A, the communication terminal B, and the communication terminal D have been described as separate communication terminals. The communication terminal A or the communication terminal B may be the same terminal.

  In each of the embodiments described above, an example in which a session is divided into two sessions with two communication terminals has been described. However, even when a session is divided into three or more communication terminals. The same applies.

  In each embodiment, the session control unit is described as one block. However, each communication terminal and the session control unit may be connected via a plurality of session control units (for example, SIP proxy). In this case, the session control for the PAN and the communication terminals constituting the PAN is performed by a session control unit that manages the domain to which the PAN is connected.

  As described above, according to the present invention, in a session establishment request from a PAN, it is possible to divide and establish each session with a plurality of communication terminals constituting the PAN.

  In addition, when a request for session establishment is transmitted simultaneously from a plurality of communication terminals, it is possible to negotiate session division and to issue a call with each communication terminal.

  Further, when dividing a session, the user can designate a communication terminal and designate a session, and when receiving a communication service as a PAN, the user has a high degree of freedom.

Moreover, the processing load and mounting burden on the communication terminal are reduced by management by the communication control device.
In addition, in order to reduce the calculation complexity of the charging, and the process of the session control means can be clearly divided into the process for the calling side and the process for the called side, Therefore, it is considered not to exchange messages such that the calling side and the called side change. That is, the request message is always transmitted from the calling side or the session control means on the calling side. In addition, session control means for managing the calling party can perform session multiplexing, determination of a control method for communication terminals in the PAN, and the like.

  In addition, since the call control instruction is transferred by the communication control device and is called to the communication terminal in the PAN, the number of negotiations and message transmission / reception between the communication terminals constituting the PAN can be reduced.

In addition, the first communication terminal can manage the session, and the first communication terminal can perform processing according to a response from the communication control device (cancellation or inability to access some communication terminals).
In addition, since a complicated response message and confirmation message are exchanged by the communication control device, the burden on the communication terminal is reduced. In addition, the communication control apparatus can support session negotiation between the partner communication terminal and the communication terminal constituting the PAN.
In addition, the number of message transmission and reception can be reduced.

In addition, a user can automatically send a multiplexed message to a partner user or a partner communication terminal by simply making a simultaneous call from a communication terminal constituting the PAN.
In addition, since a request for session establishment is sent directly from the communication control device to each of the communication terminals constituting the PAN, not the call instruction information, the communication terminal constituting the PAN can be easily implemented.
Further, when the session is divided, it can be realized only by end-to-end control between communication terminals, and a special communication control device is not required.

DESCRIPTION OF SYMBOLS 1,101 ... Application server (AS), 2 ... Mobile communication network, 3,104 ... Core network, 4 ... Communication control apparatus, 4a ... Session control means, 4b ... Subscriber information management means, 4c ... Subscriber information database, 4d: Media gateway, 5, 6, 7, 106: Wireless access network, 8a to 8c: Wireless section, 9: PAN, 10, 110: USIM card, 100: Multimedia communication control subsystem, 102: Session control device (CSCF), 103 ... Subscriber information management device (HSS), 105 ... Location management server (VLR / HLR), 107 ... Base station, 108 ... Base station control device, 109 ... Communication terminal.

Claims (30)

A communication control device for controlling connection between communication terminals in a mobile communication network,
Means for managing one or a plurality of public identification information for identifying a group configured by a communication terminal connectable to the mobile communication network together with other communication terminals;
Receiving call instruction information requesting to transmit a call connection request or a session connection request to a partner user or a partner communication terminal from the first communication terminal constituting the group, and the received call instruction information is Means for dividing and transmitting the call instruction information to each of a plurality of communication terminals constituting the group;
A communication control device comprising: The communication control device transmits call instruction information to each of a plurality of communication terminals constituting the group, transmits a response message to the first communication terminal, and receives a confirmation message from the first communication terminal. The communication control apparatus according to claim 1 , which is transmitted later. The call instruction information from the first communication terminal is transmitted from the first communication terminal together with a call connection request or a session connection request to the counterpart user or the counterpart communication terminal,
The communication control apparatus transmits call instruction information to each of a plurality of communication terminals constituting the group, and transfers a call connection request or a session connection request from the first communication terminal to the partner user or the partner communication terminal. The communication control apparatus according to claim 1 , further comprising: The call instruction information includes a destination terminal list including a public identifier that is information for specifying a destination user or destination communication terminal that is a destination of a session establishment request as a connection destination, and a communication terminal that transmits a session establishment request. And a caller terminal list including information indicating what type and attribute session is assigned to each communication terminal, and a public identifier that is information for specifying
The communication control apparatus according to claim 1 , further comprising means for dividing and transmitting the call instruction information to each public identifier specified by the call terminal list. The communication control unit manages a control logic for the group;
Means for selecting a communication terminal for transmitting call instruction information from the control logic when a public identifier for designating the group is designated in the calling terminal list;
The communication control device according to claim 4 , further comprising: A communication control device for controlling connection between communication terminals in a mobile communication network,
Means for managing one or a plurality of public identification information for identifying a group configured by a communication terminal connectable to the mobile communication network together with other communication terminals;
Means for relaying application data for establishing a session between a plurality of communication terminals constituting the group and a partner user or a partner communication terminal;
A call connection request or a session connection request to the partner user or the partner communication terminal is received from a plurality of communication terminals constituting the group, and the partner user or the partner communication terminal is contacted with the partner user from the plurality of communication terminals. Or means for transmitting a call connection request or a session connection request including session type information obtained by integrating session type information included in each of the call connection request or session connection request to the other communication terminal;
A communication control device comprising: The call connection request or session connection request to the partner user or partner communication terminal is a public identifier that is information for specifying a communication terminal that transmits a session establishment request, and what type and attribute of each communication terminal Including a call terminal list including information indicating whether to allocate a session, and session connection instruction information indicating that requests for session establishment are simultaneously transmitted from a plurality of communication terminals specified in the call terminal list,
The communication control device includes means for transmitting session type information obtained by integrating session type information included in a call connection request or a session connection request to the counterpart user or a counterpart communication terminal based on the session combination instruction information. The communication control apparatus according to claim 6 . The communication control apparatus receives session combination instruction information from a first communication terminal constituting the group, transmits a response message to the first communication terminal, and receives a confirmation message from the first communication terminal. 8. The communication control apparatus according to claim 7 , wherein a call connection request or a session connection request to the partner user or the partner communication terminal is received later from each of a plurality of communication terminals constituting the group. The communication control apparatus, after receiving a response message for a call connection request or session connection request to the partner user or partner communication terminal, separates and transmits the response message to each communication terminal specified in the calling terminal list Means to
Means for sending a confirmation for a response from the partner user or the partner communication terminal when a confirmation for a response to the communication terminal included in the calling terminal list is received from all the communication terminals included in the calling terminal list When,
The communication control device according to claim 7 , comprising: A communication control device for controlling connection between communication terminals in a mobile communication network,
Means for managing one or a plurality of public identification information for identifying a group configured by a communication terminal connectable to the mobile communication network together with other communication terminals;
Means for relaying application data for establishing a session between a plurality of communication terminals constituting the group and a partner user or a partner communication terminal;
A call instruction information requesting to transmit a call connection request or a session connection request to the other user or the other communication terminal and a plurality of communication terminals constituting the group from the first communication terminal constituting the group is received. Means for transmitting a call connection request or a session connection request to a plurality of communication terminals constituting the group;
Call connection request or session connection including session type information obtained by multiplexing session type information included in each of call connection requests or session connection requests to a plurality of communication terminals constituting the group for the counterpart user or the counterpart communication terminal Means for sending the request;
A communication control device comprising: The communication control device transmits a call connection request or a session connection request to a plurality of communication terminals constituting the group, transmits a response message to the first communication terminal, and receives a confirmation message from the first communication terminal. The communication control apparatus according to claim 10 , wherein the communication control apparatus transmits the data after reception. The call instruction information from the first communication terminal is transmitted from the first communication terminal together with a call connection request or a session connection request to the counterpart user or the counterpart communication terminal,
The communication control device transmits a call connection request or a session connection request to each of a plurality of communication terminals constituting the group, and sends the call connection request or the session connection request from the first communication terminal to the partner user or partner communication. 11. The communication control apparatus according to claim 10 , further comprising means for transferring to a terminal. The call instruction information includes a public identifier, which is information for specifying a partner user or a partner communication terminal that is a destination of a session establishment request as a connection destination, and a session of any type and attribute assigned to each communication terminal. A destination terminal list including information indicating that, and a calling terminal list consisting of a public identifier that is information for specifying a communication control device that transmits a session establishment request,
The communication control unit, means for dividing and transmitting the call instruction information to each public identifier specified by the destination terminal list;
Communication terminals including a call connection request or session connection request to a plurality of communication terminals constituting the group, and a session type of the call connection request or session connection request to the partner user or partner communication terminal included in the calling terminal list Means configured to divide each of
The communication control device according to claim 10 , comprising: The communication control unit manages a control logic for the group;
Means for selecting a communication terminal for transmitting a call connection request or a session connection request from the control logic when a public identifier for designating the group is designated in the destination terminal list;
The communication control apparatus according to claim 13 , comprising: The communication control device receives a call connection request or a session connection request to the other user or the other communication terminal after receiving all response messages to the call connection requests or session connection requests to the plurality of communication terminals constituting the group. Means for transmitting;
When a response message to the call connection request or session connection request to the partner user or partner communication terminal is received from the partner user or partner communication terminal, a confirmation message is sent to each of the communication terminals included in the calling terminal list. Means for sending out;
The communication control apparatus according to claim 13 , comprising: A communication control method of a communication control device for controlling connection between communication terminals in a mobile communication network,
The communication terminal that can be connected to the mobile communication network has one or a plurality of public identification information for specifying a group that is configured together with other communication terminals,
Receiving call instruction information requesting to transmit a call connection request or a session connection request to a partner user or a partner communication terminal from the first communication terminal constituting the group, and the received call instruction information is A communication control method comprising: dividing and transmitting call instruction information to each of a plurality of communication terminals constituting a group. After the communication control device transmits a call instruction information to each of a plurality of communication terminals constituting the group, a response message to the first communication terminal, and receives a confirmation message from the first communication terminal The communication control method according to claim 16 , wherein transmission is performed. The call instruction information from the first communication terminal is transmitted from the first communication terminal together with a call connection request or a session connection request to the counterpart user or the counterpart communication terminal,
The communication control device transmits call instruction information to each of a plurality of communication terminals constituting the group, and transfers a call connection request or a session connection request from the first communication terminal to the counterpart user or the counterpart communication terminal. The communication control method according to claim 16 , wherein: The call instruction information includes a destination terminal list including a public identifier that is information for specifying a destination user or destination communication terminal that is a destination of a session establishment request as a connection destination, and a communication terminal that transmits a session establishment request. And a caller terminal list including information indicating what type and attribute session is assigned to each communication terminal, and a public identifier that is information for specifying
The communication control method according to claim 16 , wherein the communication control device divides and transmits the call instruction information to each public identifier specified by the calling terminal list. The communication control device manages and has control logic for the group;
20. The communication control method according to claim 19 , wherein when a public identifier that designates the group is designated in the calling terminal list, a communication terminal that transmits calling instruction information is selected from the control logic. . A communication control method of a communication control device for controlling connection between communication terminals in a mobile communication network,
The communication terminal that can be connected to the mobile communication network has one or a plurality of public identification information for specifying a group that is configured together with other communication terminals,
Relay application data to establish a session between a plurality of communication terminals and a partner user or a partner communication terminal constituting the group;
A call connection request or a session connection request to the partner user or the partner communication terminal is received from a plurality of communication terminals constituting the group, and the partner user or the partner communication terminal is contacted with the partner user from the plurality of communication terminals. Alternatively, a communication control method characterized by transmitting a call connection request or a session connection request including session type information obtained by integrating session type information included in a call connection request or a session connection request to a partner communication terminal. The call connection request or session connection request to the partner user or partner communication terminal is a public identifier that is information for specifying a communication terminal that transmits a session establishment request, and what type and attribute of each communication terminal Including a call terminal list including information indicating whether to allocate a session, and session connection instruction information indicating that requests for session establishment are simultaneously transmitted from a plurality of communication terminals specified in the call terminal list,
The communication control device transmits session type information obtained by integrating session type information included in a call connection request or a session connection request to the counterpart user or the counterpart communication terminal based on the session combination instruction information. The communication control method according to claim 21 . The communication control apparatus receives session combination instruction information from a first communication terminal constituting the group, transmits a response message to the first communication terminal, and receives a confirmation message from the first communication terminal. 23. The communication control method according to claim 22 , wherein a call connection request or a session connection request to the partner user or the partner communication terminal is received later from each of a plurality of communication terminals constituting the group. After the communication control device receives a response message to the call connection request or session connection request to the other user or the other communication terminal, the response message is separated and transmitted to each communication terminal specified in the calling terminal list. And
When confirmations for responses to communication terminals included in the calling terminal list are received from all communication terminals included in the calling terminal list, confirmations for responses from the other user or the other communication terminal are sent. The communication control method according to claim 22 . A communication control method of a communication control device for controlling connection between communication terminals in a mobile communication network,
The communication terminal that can be connected to the mobile communication network has one or a plurality of public identification information for specifying a group that is configured together with other communication terminals,
Relay application data to establish a session between a plurality of communication terminals and a partner user or a partner communication terminal constituting the group;
A call instruction information requesting to transmit a call connection request or a session connection request to the other user or the other communication terminal and a plurality of communication terminals constituting the group from the first communication terminal constituting the group is received. And transmitting a call connection request or a session connection request to a plurality of communication terminals constituting the group,
Call connection request or session connection including session type information obtained by multiplexing session type information included in each of call connection requests or session connection requests to a plurality of communication terminals constituting the group for the counterpart user or the counterpart communication terminal A communication control method characterized by transmitting a request. The communication control device transmits a response message to the first communication terminal and receives a confirmation message from the first communication terminal for a call connection request or a session connection request to a plurality of communication terminals constituting the group. 26. The communication control method according to claim 25 , wherein the transmission is performed after the transmission. The call instruction information from the first communication terminal is transmitted from the first communication terminal together with a call connection request or a session connection request to the counterpart user or the counterpart communication terminal,
The communication control apparatus transmits a call connection request or a session connection request to each of a plurality of communication terminals constituting the group, and the call connection request or the session connection request from the first communication terminal is transmitted to the partner user or partner communication. The communication control method according to claim 25 , wherein the communication control method transfers to a terminal. The call instruction information includes a public identifier, which is information for specifying a partner user or a partner communication terminal that is a destination of a session establishment request as a connection destination, and a session of any type and attribute assigned to each communication terminal. A destination terminal list including information indicating that, and a calling terminal list consisting of a public identifier that is information for specifying a communication control device that transmits a session establishment request,
The communication control device divides and transmits the call instruction information to each public identifier specified by the destination terminal list,
Communication terminals including a call connection request or session connection request to a plurality of communication terminals constituting the group, and a session type of the call connection request or session connection request to the partner user or partner communication terminal included in the calling terminal list 26. The communication control method according to claim 25 , wherein the communication control method is configured to divide each of the communication. The communication control device manages and has control logic for the group;
29. The communication according to claim 28 , wherein when a public identifier that designates the group is designated in the destination terminal list, a communication terminal that transmits a call connection request or a session connection request is selected from the control logic. Control method. After the communication control device has received all response messages to the call connection request or session connection request to the plurality of communication terminals constituting the group, the communication control device issues a call connection request or session connection request to the other user or the other communication terminal. Send
When a response message to the call connection request or session connection request to the partner user or partner communication terminal is received from the partner user or partner communication terminal, a confirmation message is sent to each of the communication terminals included in the calling terminal list. 29. The communication control method according to claim 28 , wherein the communication control method is transmitted.

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