JP2018056672A - Communication terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of inconsistency of settings between the communication terminal device side and the network side, in regard to the settings of a plurality of additional service functions, in the event of a setting change error in at least a part of functions among the plurality of functions, at the execution of an operation to change the settings of the plurality of additional service functions for voice communication.SOLUTION: A communication terminal device, capable of voice communication through a mobile communication network including a packet data network, includes: additional service set means which sets the additional service including the plurality of functions for the voice communication through the mobile communication network; and storage means which stores additional service set information. When there is an operation to change the settings of the plurality of functions of the additional service, the additional service set means preserves set information before the change of the additional service into the storage means. Also, when the setting change fails in at least one function among the plurality of additional service functions, the additional service set means performs processing to restore the settings of the additional service functions to the settings before the setting change preserved in the storage means.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a communication terminal device capable of voice communication via a packet data network.

  Conventionally, a communication terminal device having a voice communication function via a packet data network of a mobile communication network is known (for example, see Non-Patent Document 1). Voice communication over a packet data network is also referred to as VoLTE (voice over LTE) because voice communication services are provided using communication technology compliant with LTE (Long Term Evolution) standards. .

  In VoLTE, an additional service menu can be provided. Examples of the additional service menu include outgoing call restriction, incoming call restriction, forwarding telephone, answering machine, and the like. These additional service menus can be provided in combination with a plurality of functions for one additional service menu in consideration of usability. For example, the transmission restriction additional service menu has four functions of all transmission restriction, all international transmission restrictions, international transmission restrictions (other than Japan), and transmission restriction suspension. In addition, the additional service menu of the transfer telephone has two functions of no call and call. Each function of these additional service menus can be set by the user on the communication terminal device.

  However, when a user performs an operation for changing the setting of the multiple functions of the additional service for voice communication on the communication terminal device, if a setting change error occurs in at least some of the multiple functions, the plurality of additional services There may be a mismatch between the communication terminal device side and the network side regarding function settings.

  The present invention has been made in view of the above problems, and its purpose is to use at least some of the plurality of functions when an operation for changing the setting of the plurality of functions of the additional service of voice communication is performed. To provide a communication terminal device capable of preventing a mismatch between the settings on the communication terminal device side and the network side regarding the setting of a plurality of functions of additional services when a setting change error occurs.

A communication terminal device according to an aspect of the present invention is a communication terminal device capable of voice communication via a mobile communication network having a packet data network, and includes a plurality of functions of voice communication via the mobile communication network. An additional service setting means for setting the additional service; and a storage means for storing the setting information of the additional service, wherein the additional service setting means has an operation of changing the setting of a plurality of functions of the additional service. The setting information before the change of the multiple functions of the additional service is stored in the storage unit, and when the setting change of at least one of the multiple functions of the additional service fails, the setting of the multiple functions of the additional service is performed. A process of returning to the setting before the setting change stored in the storage means is performed.
In the communication terminal apparatus, the additional service setting means transmits setting change information for changing settings of a plurality of functions of the additional service to the mobile communication network, and at least one function among the plurality of functions of the additional service is transmitted. When a response indicating that the setting change has failed is received, processing for returning the setting of the plurality of functions of the additional service to the setting before the setting change stored in the storage unit may be performed.

  According to the present invention, when a setting change error occurs in at least some of the plurality of functions when an operation for changing the setting of the plurality of functions of the additional service of voice communication is performed, the plurality of functions of the additional service is performed. The occurrence of a mismatch between the settings on the communication terminal device side and the network side can be prevented.

Explanatory drawing which shows an example of schematic structure of the whole communication system which can communicate by the communication terminal device which concerns on embodiment of this invention. The block diagram which shows an example of schematic structure of the communication terminal device which concerns on this embodiment. The block diagram which shows an example of the main structures of UICC with which the communication terminal device of this embodiment is mounted | worn. The sequence diagram which shows an example of the recovery process procedure performed between the network side, when the communication terminal device which concerns on this embodiment fails in a setting change in some of the some functions performed at the time of additional service menu selection . The flowchart which shows an example of the control in the communication terminal device at the time of changing the setting of the additional service menu including a plurality of functions.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an explanatory diagram showing an example of a schematic configuration of an entire communication system that can perform a call (voice communication) and mail transmission / reception of various messages by the communication terminal device according to the embodiment of the present invention. In the communication system of this embodiment, a mail communication service such as a telephone service or mail transmission / reception can be used from a plurality of communication terminal apparatuses 10.

  The communication terminal apparatus 10 according to the present embodiment is a communication terminal apparatus compatible with VoLTE that is voice communication via a packet data network on a mobile communication network compliant with the LTE standard, and is also referred to as a user apparatus (UE). . The communication terminal device 10 of the present embodiment also has a call function via a circuit switching network on a 3G mobile communication network, and communicates with a communication terminal device not supporting VoLTE via the circuit switching network. You can make a call.

  The mobile communication network 20 corresponds to a radio access network (RAN) 210 including a base station, a radio network controller, and the like, and a 3G (third generation) radio communication system such as W-CDMA (Wideband Code Division Multiple Access). A core network 220 and a core network (EPC: Evolved Packet Core) 240 corresponding to a wireless communication system (hereinafter referred to as “LTE wireless communication system”) compliant with the LTE standard are provided. Further, the mobile communication network 20 includes a dedicated packet data network 230 and an IMS network 250 constructed in the mobile communication network 20 as a PDN (packet data network).

  The mobile communication network 20 includes a RADIUS (Remote Authentication Dial-in User Service) server as a communication service use management device that manages the use of communication services by each user. The RADIUS server performs an authentication process for identifying a user of a communication service using the communication terminal device 10, a process for determining whether or not to provide a communication service to an authenticated user, and actual communication service usage information. Accounting to record.

  The radio access network 210 includes a base station (Node B) 211 of a 3G radio communication system such as W-CDMA and a base station (eNodeB) 212 of an LTE radio communication system. Each base station 211, 212 is provided for each cell subject to jurisdiction, converts data from a wired line in the mobile communication network 20 into a data format suitable for the radio interface, and is located within the cell subject to jurisdiction. It transmits to the communication terminal device 10 that is being transmitted at a predetermined radio frequency. Conversely, data from the communication terminal device 10 transmitted at a radio frequency is received, converted into a data format suitable for the wired interface, and transferred to the wired line portion in the mobile communication network 20.

  The 3G core network 220 includes a circuit switching network, a packet switching network, an HLR (Home Location Register) 221 as a location registration management device, an authentication center, and the like, and relays communication between the communication terminal devices 10. Control communication. Furthermore, the core network 220 performs communication control so as to relay communication between each communication terminal device 10 and the components in the mobile communication network 20. The core network 220 performs communication control so as to relay communication between each communication terminal apparatus 10 and another communication network.

  The packet switching network included in the 3G core network 220 includes nodes such as an SGSN (Serving GPRS Support Node) 222 and a GGSN (Gateway GPRS Support Node) 223. The SGSN 222 is a gateway function between an RNC (Radio Network Control Device) 215 to which the base station 211 is connected and a packet switching network on the core network 220 side, and location management, security management and access control of each communication terminal device 10. And a function of performing The GGSN 223 has a gateway function between the packet switching network on the core network 220 side and the dedicated packet data network 230.

  The circuit switching network included in the 3G core network 220 includes nodes such as an MSC (mobile switch) 224 and a GMSC (gateway MSC) 225. The exchange 224 has a VLR (location / location register) function for registering and managing location information of the communication terminal device 10 in a cell in which the communication terminal device 10 is located, a call control function, and a service control function. It also has an SSF (Service Exchange Function) function that executes a series of processes for interaction to be performed. In addition, voice communication with the external circuit-switched telephone network 60 can be performed via the gateway switch 225.

  The dedicated packet data network 230 includes a proxy server 231, a gateway (GW) server 232, a WEB server 233, a subscriber information database, and the like. The proxy server 231 relays communication between the communication terminal device 10 and various servers 71 such as a WEB server 233 provided in the dedicated packet data network 230 and various servers 71 such as a WEB server and a download server on the Internet 70. Perform the process. The proxy server 231 also has a protocol conversion function for matching both communication protocols when the communication protocol in the 3G core network 220 is different from the communication protocol in the dedicated packet data network 230 or the Internet 70. The gateway server 232 has a gateway function and a firewall function between the dedicated packet data network 230 in the mobile communication network 20 and the Internet 70.

  The LTE core network (EPC) 240 includes an HSS (Home Subscriber Server) 241, an MME (Mobility Management and Entity) 242, an SGW (Serving Gateway) 243, and a PGW (Packet Data Network / Gateway) 244. And a policy charging control function (PCRF) 245 that is a policy charging control device. The HSS 241 is a server that manages subscriber information and controls services. The MME 242 is a logical node that accommodates the base station (eNodeB) 212 and provides mobility control and the like. The SGW 243 is a visited packet gateway (located packet switch) that relays user data between the MME 242 and the PGW 244 and transfers user data to the 3G core network 220 side. The PGW 244 is a gateway that is installed at a connection point with the IMS network 250 and the Internet 70 and performs IP address assignment, packet transfer to the SGW 243, and the like. The PCRF 245 is a logical node that performs control for user data transfer QoS (communication service quality) and billing.

  The IMS network 250 is a packet data network capable of performing voice session control, and includes a P-CSCF (proxy-call / session / control function) 251, an S-CSCF (serving-call / session-control function) 252, , I-CSCF (inquiry / call / session / control function) 253, AS (application server) 254, and XDM (XML document management) server 256. The P-CSCF 251 is a SIP relay server installed at a connection point with the core network (EPC) 240, and has a function of starting QoS control in cooperation with the core network (EPC) 240 as well as transferring SIP signals. Have. The S-CSCF 252 is a SIP server that performs terminal session control and user authentication. The I-CSCF 253 is the first gateway SIP server to be connected from another external IMS network 80 at the time of interconnection / roaming, and has a function of identifying the S-CSCF 252 and a function of relaying signals. .

  The AS 254 is a server for providing a service such as IMS, and provides multimedia applications such as voice and video to each communication terminal device 10 based on subscriber identification information by user login registration. Also, the AS 254 is a means for receiving an IMS service registration cancellation request or registration request from the communication terminal device 10, a means for executing processing for canceling a user's usage registration based on the registration cancellation request, and a user based on the registration request. And a function for transmitting a registration cancellation completion response or a registration completion response including information indicating that the processing has been completed to the communication terminal device 10.

  The XDM server 256 is a server that stores and manages setting information used in various services provided by IMS as an XCAP document (XML document) for each communication terminal device or for each user. For example, the XDM server 256 transmits the setting information used for the VoLTE service provided by IMS and its additional services (for example, VoLTE outgoing / incoming call, interrupt incoming call, incoming call transfer) for each communication terminal apparatus or for each user. It is stored and managed as a document (XML document).

  In the communication system, a plurality of pieces of identification information for using a communication service using the communication terminal device 10 is registered and managed in a predetermined server or database. For example, IMSI (subscriber identifier), MSISDN (telephone number), IMEI (international mobile equipment) which are identification information for using communication services such as telephone calls, messages, mails, and Internet access in the mobile communication network 20 (Identifier: terminal identification information) and the like are registered and managed in an HLR (Home Location Register) 221 which is a subscriber information database. In addition, IMPU, IMPI, etc., which are identification information for using a communication service such as VoLTE in an IMS (IP Multimedia Subsystem) network, which is an IP network constructed on the mobile communication network 20, are included in the IMS. It is registered and managed in the HSS 241 which is a subscriber information management server. These HLR 221 and HSS 241 are configured to be able to communicate with the communication terminal apparatus 10 via the mobile communication network 20 by a predetermined communication protocol.

  Here, the IMPU is a uniquely identifiable identifier for routing the SIP message signal to the destination communication terminal device (IMS terminal) in the IMS network, and can be generated based on, for example, MSISDN (non-patent document). (Refer to Chapter 13 of Document 2). Further, the IMPI is a uniquely identifiable identifier used for identification of an IMS subscription contract and authentication at the time of access to the IMS, and can be generated based on, for example, IMSI (Non-Patent Document 2). See Chapter 13).

  The communication terminal device 10 can communicate with the HLR 221 via the base station (NodeB) 211 of the mobile communication network 20 and can communicate with the HSS 241 via the base station (eNodeB) 212. The communication terminal apparatus 10 includes communication services such as telephone, message, mail, and Internet access in the mobile communication network 20 such as 3G, 4G, and LTE (Long Term Evolution) (hereinafter referred to as “mobile communication service”). And an application program which is software for using a communication service such as VoLTE in the IMS network (hereinafter referred to as “IMS communication service”). Further, the communication terminal device 10 includes a UICC (Universal IC Card) 15 which is a general-purpose integrated IC card in which a plurality of pieces of identification information such as IMSI, MSISDN, IMEI, IMPU, and IMPI are stored. The UICC 15 also stores various data used in the communication service and an applet that is an individual program for performing predetermined operations and processing in the card. Note that the communication terminal device 10 of the present embodiment is configured so that the UICC can be attached and detached by the user's work, but the UICC may be incorporated inside so that the user cannot easily remove it. .

  The application program (hereinafter, abbreviated as “application” as appropriate) and applets can be downloaded from a server on the communication network and registered in the communication terminal device 10, and the user can select and execute them. can do. The application program and the applet are executed on an application execution environment such as JAVA (registered trademark) execution environment built in the communication terminal device 10.

  FIG. 2 is a block diagram illustrating an example of a hardware configuration of the communication terminal device 10 according to the present embodiment. The communication terminal device 10 includes a main control unit 110, a wireless communication unit 111, a baseband processing unit 112, a sound input / output unit 113, a display unit 114, and an operation unit 115 as an operation unit. In addition, the communication terminal apparatus 10 is equipped with a UICC 15 that can be attached to and detached from the apparatus main body. The UICC 15 incorporates a function as a USIM used in a mobile communication service.

  The main control unit 110 includes an MPU (micro processing unit), a RAM, a ROM, and the like, and controls each unit such as the baseband processing unit 112 by executing a program such as a predetermined basic OS or middleware. Or build a native platform environment or application execution environment on the software configuration.

The main control unit 110 can function as the following units (1) and (2) by cooperating with other units such as the other wireless communication unit 111.
(1) Additional service setting means for setting an additional service including a plurality of voice communication functions via the mobile communication network 20.
(2) Storage means for storing setting information of the additional service.

  The wireless communication unit 111 functions as a network communication unit that communicates via the mobile communication network 20, and includes, for example, a synthesizer, a frequency converter, a high frequency amplifier, and the like, and includes a base station (NodeB) 211 of the mobile communication network 20 and High-frequency signal processing for wireless communication with the base station (eNodeB) 212 is executed.

  The baseband processing unit 112 performs digital processing for performing voice communication and data transmission / reception communication with communication terminal devices such as other mobile phones and various servers. The baseband processing unit 112 and the wireless communication unit 111 are connected via a D / A converter or an A / D converter.

  The sound input / output unit 113 includes a microphone, a speaker, a sound signal processing unit, and the like. The analog audio signal output from the microphone is converted into a digital signal by the sound signal processing unit and sent to the main control unit 110, the baseband processing unit 112, and the like. The speaker receives an analog signal converted from a digital signal by the sound signal processing unit, and outputs a voice during a call, or outputs a ringtone for a mail, a ringing tone for a telephone, music, or the like. The speaker may be configured by separately providing a receiver speaker (receiver) for listening to voice during a call and an external output speaker for outputting ringtones, music, etc. You may comprise with one speaker so that a speaker and an external output speaker may be combined.

  The display unit 114 is configured by an LCD (liquid crystal display) or the like, and displays various images based on commands from the main control unit 110. The operation unit 115 includes a touch panel incorporated in the display unit 114, various operation keys and buttons, a power switch as a power ON / OFF unit, and the like. This operation unit 115 is used when the user turns on / off the main body power supply of the communication terminal device 10, instructs a call start / end, menu selection, screen switching, etc., or inputs information. It is done.

  In addition, the communication terminal device 10 includes a GPS (global positioning system) unit 117 as a position information acquisition unit, a camera unit 118 as an imaging unit, a sensor unit 119, a power supply unit 120 as a power supply unit, a watch (not shown). The department etc. are also provided.

  The GPS unit 117 includes a GPS receiving module, a GPS antenna, and the like, receives radio waves from a plurality of GPS satellites arranged around the earth, and the latitude and longitude at which the communication terminal device 10 is located based on the reception result And altitude data. The camera unit 118 includes a lens, an imaging device, and the like, and is used when shooting a person, a landscape, and the like. As the imaging device, a CCD (Charge Coupled Device) camera or a CMOS camera can be used. The sensor unit 119 includes an acceleration sensor and / or a geomagnetic sensor. The acceleration sensor may be a uniaxial acceleration sensor or a multi-axis acceleration sensor such as a biaxial or triaxial acceleration sensor. Further, the geomagnetic sensor may be a uniaxial geomagnetic sensor, or may be a multiaxial geomagnetic sensor such as a biaxial or a triaxial. Based on the output of the sensor unit 119, data indicating the position, orientation, posture, and movement of the communication terminal device 10 can be calculated. Further, based on the output of the sensor unit 119, the communication terminal device 10 determines whether or not the communication terminal device 10 is based on history information that is information on temporal changes in acceleration data and geomagnetic data when the user's communication terminal device 10 moves from a reference position at a predetermined altitude. Data indicating the altitude, angle, and the like that are located can be calculated.

  The power supply unit 120 includes a rechargeable battery, a power supply circuit that supplies power of a predetermined voltage from the battery to each unit, a charging circuit that charges the battery, and the like. The power supply unit 120 also supplies power to the main part of the communication terminal device 10, that is, the sound input / output unit 113, the display unit 114, a part of the operation unit 115, the GPS unit 117, the camera unit 118, and the sensor unit 119. The above-described power switch that can be operated by the user can be turned ON / OFF. In order to operate some functions when the power switch is turned off, the power supply unit 120 continues to supply power to the wireless communication unit 111, the baseband processing unit 112, and the UICC 15 even when the power switch is turned off. It may be configured to do.

  The clock unit is configured by a clock circuit or the like, counts accurate date and time, and generates time information for various update processes, for example.

  FIG. 3 is a block diagram illustrating an example of a main configuration of the UICC 15 attached to the communication terminal device 10 of the present embodiment. The UICC 15 is composed of, for example, an IC module, and includes a control unit 150 including a CPU, a storage unit 151 serving as a storage unit including a ROM and a RAM, an I / O interface unit 152 for communicating with the communication terminal device main body, and the like. It has.

  The storage unit 151 includes a system area 151a in which basic programs, applets, data, and the like used mainly for control by the control unit 150 are stored, and a USIM area 151b as a first storage unit.

  The USIM area 151b stores various types of information and data for realizing the USIM function of the mobile communication service, such as a plurality of identification information such as IMSI, MSISDN, and IMEI described above, and a telephone / address book.

  In addition, in the storage unit 151, when the use registration of the IMS communication service is completed, a plurality of pieces of identification information such as IMPU and IMPI set and paid out by the HSS 241 described above and the SIP ( Session initiation protocol) It has an area for temporarily storing information, data, etc. for realizing the ISIM function of the IMS communication service, such as the address of the P-CSCF 251 which is a relay server. As this area, the USIM area 151b may also be used.

  The system area 151a of the storage unit 151 also stores an applet that is a relatively small program used for processing in the UICC 15. For example, in the system area 151a, a temporary IMPU that is temporarily used for rewriting and reading setting information in the XDM server 256 is generated based on the IMSI or MSISDN that is the subscriber identification information stored in the USIM area 151b. An applet that performs processing to be stored in the ISIM area 151c is stored.

  The UICC 15 may have an ISIM area separately from the USIM area 151b. In the ISIM area, when the use registration of the IMS communication service is completed, a plurality of identification information such as the above-mentioned IMPU and IMPI, and the address of the P-CSCF 251 to which the communication terminal device 10 should be connected, etc. Information and data for realizing the functions are stored. Further, the USIM and the ISIM may be configured by separate IC cards so that they can be individually attached to and detached from the main body of the communication terminal device 10.

  In the communication terminal device 10 having the above-described configuration, it is possible to use a VoLTE call service provided by IMS and an additional service by VoLTE such as incoming call transfer and interrupt incoming call. Control of these VoLTE and its additional services is realized by using setting information stored as an XCAP document (XML document) in the XDM server 256. The setting information stored as an XCAP document in the XDM server 256 can be rewritten or read out using the XCAP message by accessing the XDM server 256 from the communication terminal device 10. In addition, rewriting and reading of the setting information can be performed for each communication terminal device or for each user.

  In the communication terminal device 10 according to the present embodiment, a user can use a menu that allows selection of an additional service including a plurality of functions (hereinafter referred to as “additional service menu”) as shown in Tables 1 and 2. In the additional service menu, a plurality of functions can be provided in combination with one additional service menu in consideration of usability.

Table 1 shows an example of an additional service menu including a plurality of restriction functions related to outgoing call restriction and incoming call restriction in voice communication.

  In Table 1, the outgoing service additional service menu includes all outgoing restrictions (BAOC: Barring All Outgoing Call), international outgoing restrictions (BOIC) and international outgoing restrictions (other than Japan) (BOIC-exHC: There are three functions: Barring Outgoing International Call exception Home Country). In addition, the incoming call restriction additional service menu has two functions, namely, all incoming call restriction (BAIC: Barring All Coming Call) and international incoming call restriction (BIC-Roam: Barring Incoming Call when Roaming).

  Note that the transmission restriction stop is set by turning off all functions of all transmission restriction (BAOC), international transmission restriction (BOIC), and international transmission restriction (other than Japan) (BOIC-exHC) (Deactivate). The incoming call restriction stop is set by turning off all functions of the incoming call restriction (BAIC) and the international incoming call restriction (BIC-Room).

  In the additional service menu related to the restriction function, all outgoing restrictions and all international outgoing restrictions settings are preferentially handled as functions executed when the menu is selected. Therefore, when changing settings, all functions must be turned OFF (Deactivate) once. Only the function to be activated is set to ON (Activate). For example, when setting all international transmission restrictions, all functions of all outgoing restrictions (BAOC), international outgoing restrictions (BOIC) and international outgoing restrictions (other than Japan) (BOIC-exHC) must be turned OFF (Deactivate). , Turn on all international regulations (BOIC) ON (Activate).

Table 2 shows an example of an additional service menu including a plurality of transfer functions related to transfer of voice communication.

  In Table 2, the additional service menu related to the transfer function has two functions of transfer phone and answering machine. A forwarded telephone is an additional service that is forwarded to an arbitrary telephone number determined by the user, and an answering machine is an additional service that is forwarded to a predetermined telephone number of a communication carrier to record a message on the calling side. Furthermore, the additional service menus of the forwarding telephone and the answering machine each have two functions of no call and call.

  There is a CFU (Communication Forwarding Unconditional) as a function without calling a forwarding telephone and an answering machine. In addition, there are three functions of a call with a transfer telephone and an answering machine: CFB (Communication Forwarding Busy), CFNRy (Communication Forwarding No Reply), and CFNRc (Communication Forwarding Not Reachable).

  Here, the CFU is a function that is transferred to an arbitrary telephone number determined by the user or a predetermined answering machine number of a communication carrier without calling. The CFB is a function that, when a call is made, is transferred to an arbitrary telephone number determined by the user or a predetermined answering machine number of a communication carrier by a terminal operation such as pressing a button of the communication terminal device 10. is there. The CFNRy is a function that is transferred to an arbitrary telephone number determined by the user or a predetermined answering machine number of a communication carrier when a call is made and the time is up without answering the call. Further, the CFNRc is a function that is transferred to an arbitrary telephone number determined by the user or a predetermined answering telephone number of a communication carrier when the communication terminal apparatus 10 is out of service area when a call is made.

  Note that the arbitrary telephone numbers determined by the user set as the transfer destination telephone numbers in the CFB, CFNRy, and CFNRc may be the same unified telephone number.

  The total suspension of the transfer telephone and answering machine is set by turning off all functions of CFU, CFB, CFNRy, and CFNRc.

  In the above supplementary service menu related to transfer, no call (CFU) setting is preferentially handled as the setting of the function executed when the menu is selected. , CFNRy, CFNRc settings are changed.

  As described using Table 1 and Table 2 above, a plurality of functions are executed in the setting change of the function of the additional service menu. For example, if the setting change of one of the functions fails, the user in the communication terminal apparatus 10 A state mismatch occurs between the operation and the actual setting on the network side.

  Therefore, in the present embodiment, when the setting change of the function of the additional service menu is started, the current setting information of the plurality of functions is saved, and if the setting change of at least one of the plurality of functions fails, the setting change operation is performed. By performing recovery processing to return to this state, a state mismatch is avoided.

  FIG. 4 is a sequence showing an example of a recovery processing procedure performed between the communication terminal device 10 and the network side when setting change has failed in at least some of the plurality of functions executed when the additional service menu is selected. FIG. FIG. 4 shows an example in the case where an error occurs at the time of ON for setting a transfer telephone with a call in a state where no transfer is set.

  In FIG. 4, first, when the user operates the communication terminal device 10 and selects “no call” or “with call” in the “forwarding phone” or “answering machine” menu, the communication terminal device 10 relates to the transfer phone. After storing the current setting information of a plurality of functions, the CFU is activated, and “Interrogation CFU” for confirming that there is no call (CFU) is transmitted from the communication terminal device 10 to the LTE / EPC 240 (S1). Subsequently, “Activate CFB” for turning on the function of transferring to an arbitrary telephone number determined in advance by the user is transmitted from the communication terminal apparatus 10 to the LTE / EPC 240 (S2). A success response to this is transmitted from the LTE / EPC 240 to the communication terminal device 10 (S3).

  Next, “Activate CFNRy” is transmitted from the communication terminal device 10 to the LTE / EPC 240 to be transferred to an arbitrary telephone number determined by the user when the communication terminal device 10 times up without answering the call (S4). ). Thereafter, when the LTE / EPC 240 fails to change the setting of “Activate CFNRy” due to a communication failure or the like, a failure response indicating that the setting change has failed is transmitted to the communication terminal apparatus 10 (S5). The communication terminal device 10 that has received the failure response executes a recovery process for returning to the state before the setting change operation. Specifically, “Deactivate CFB” is transmitted to the LTE / EPC 240 in order to return the CFB whose setting has been changed in S2 to the state before the setting change operation (S6). Then, a success response to this is transmitted from the LTE / EPC 240 to the communication terminal device 10, and it is confirmed that the CFB is turned off (S7).

  As described above, when an error occurs in the middle of setting a plurality of functions in order to change the setting to a transfer telephone with a call, recovery processing is performed to return to the state before the setting change operation, and the communication terminal device 10 and the LTE / EPC 240 can avoid a state mismatch.

FIG. 5 is a flowchart showing the control in the communication terminal device 10 when changing the setting of the additional service menu including a plurality of functions.
In FIG. 5, first, it is determined whether or not the user has operated the communication terminal device 10 to select the multi-function execution menu for additional services (S10). If the multiple function execution menu is not selected (No in S10), the process ends. On the other hand, when the multi-function execution menu is selected (Yes in S10), the communication terminal apparatus 10 temporarily saves the current setting information of the multi-functions of the additional service in case an error occurs due to the setting change (S11). Then, it is determined whether an error has occurred during partial function setting (S12). If an error occurs during the setting of some functions (Yes in S12), it rolls back to the setting temporarily stored in S11 and returns to the state before the change operation (S13). On the other hand, if no error occurs during partial function setting, the process ends (No in S12).

  In addition, when recovery processing is executed to return to the state before the setting change operation due to an error in the setting change, the user is notified that the setting change has failed, or the user is prompted to change the setting again. May be.

  As described above, according to the present embodiment, when the user performs a setting change operation to change the setting of the restriction function of the supplementary service menu or the plurality of functions of the transfer function on the communication terminal device 10, at least a part of the plurality of functions. When a setting error occurs in this function, it is possible to prevent a state mismatch between the settings on the communication terminal device side and the network side.

DESCRIPTION OF SYMBOLS 10 Communication terminal device 20 Mobile communication network 60 External circuit switching telephone network 70 Internet 80 External IMS network 210 Radio access network 211 3G base station (NodeB)
212 LTE base station (eNodeB)
220 3G Core Network 221 HLR (Location Registration Device)
224 MSC (switch)
225 GMSC (Kanmon Exchange)
230 Dedicated packet data network 240 LTE core network (EPC)
241 HSS (Home Subscriber Server)
242 MME (Mobility Management Entity)
243 SGW (Serving Gateway)
244 PGW (packet data network / gateway)
245 PCRF (policy charging control device)
250 IMS (IP Multimedia Subsystem) Network 251 P-CSCF (Proxy-Call / Session / Control Function)
252 S-CSCF (Serving-Call / Session / Control Function)
253 I-CSCF (Inquiry / Call / Session / Control Function)
254 AS (Application Server)
256 XDM (XML document management) server

GSMA PRD IR.92: "IMS Profile for Voice and SMS", Mar. 2011. 3GPP TS 23.003 V12.2.0 (2014-03), "Technical Specification Group Core Network and Terminals; Numbering, addressing and identification (Release 12)".

Claims (2)

A communication terminal device capable of voice communication via a mobile communication network having a packet data network,
An additional service setting means for setting an additional service including a plurality of functions of voice communication via the mobile communication network;
Storage means for storing setting information of the additional service,
The additional service setting means includes
When there is an operation to change the setting of the multiple functions of the additional service, the setting information before the change of the multiple functions of the additional service is stored in the storage means,
When setting change of at least one function among the plurality of functions of the additional service fails, processing for returning the setting of the plurality of functions of the additional service to the setting before the setting change stored in the storage unit is performed. A communication terminal device. The communication terminal device according to claim 1,
The additional service setting means transmits setting change information for changing the setting of a plurality of functions of the additional service to the mobile communication network, and a response that the setting change has failed for at least one function of the plurality of functions of the additional service. When the communication terminal device is received, the communication terminal apparatus performs processing for returning the setting of the plurality of functions of the additional service to the setting before the setting change stored in the storage unit.

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