WO2014034058A1 - Système de réseau de communication audio, appareil de commande de la communication, appareil de communication mobile, procédé de commande de la communication et support d'enregistrement de programme - Google Patents

Système de réseau de communication audio, appareil de commande de la communication, appareil de communication mobile, procédé de commande de la communication et support d'enregistrement de programme Download PDF

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Publication number
WO2014034058A1
WO2014034058A1 PCT/JP2013/004980 JP2013004980W WO2014034058A1 WO 2014034058 A1 WO2014034058 A1 WO 2014034058A1 JP 2013004980 W JP2013004980 W JP 2013004980W WO 2014034058 A1 WO2014034058 A1 WO 2014034058A1
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Prior art keywords
information
communication network
communication
switching
circuit
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PCT/JP2013/004980
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English (en)
Japanese (ja)
Inventor
小林　宰
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日本電気株式会社
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Publication of WO2014034058A1 publication Critical patent/WO2014034058A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks

Definitions

  • the present invention relates to a handover technique for switching a voice communication system from a packet switching system to a circuit switching system.
  • SRVCC Single Radio Voice Call Continuity
  • MS Mobile Station
  • NW Network Switch
  • the base station has an area in charge. For this reason, when the base station in charge moves to a different area, the mobile station executes a handover for switching the base station as a connection partner.
  • a voice communication system used by a mobile station is changed from a LTE (Long Termination Evolution) system that employs a packet switching scheme to a UMTS (Universal Mobile Telecommunications System) or GSM (Global System) that employs a circuit switching scheme. for Mobile Communications) (registered trademark) system.
  • LTE Long Termination Evolution
  • UMTS Universal Mobile Telecommunications System
  • GSM Global System
  • SRVCC is used as a handover technique used in this case.
  • the mobile station and the network When performing handover by SRVCC, the mobile station and the network establish voice communication by the circuit switching method without performing explicit signaling related to voice communication between them.
  • the mobile station (MS) and the network (NW) determine the type of communication (service) that can be used (executed) by signaling. Notify the information (BearerabilityCapability) to be shown.
  • This process is also called negotiation (hereinafter also referred to as bearer negotiation).
  • bearer negotiation the process is also called negotiation (hereinafter also referred to as bearer negotiation).
  • the network (NW) allows the communication type (service content) to be changed for the mobile station (MS). That is, by performing bearer negotiation, the mobile station (MS) and the network (NW) can recognize each other of communication types that can be supported. Thereby, for example, the mobile station (MS) and the network (NW) can switch (Modify) from voice-only call communication to other communication (for example, videophone communication) involving voice.
  • the main object of the present invention is to provide a technology that enables the type of voice communication to be changed during a call after a handover is performed for switching from voice communication based on packet switching to voice communication based on circuit switching. There is.
  • a voice communication network system of the present invention includes: A mobile communication device capable of voice communication using packet switching and circuit switching; and A communication control device for performing communication control in a circuit switching type information communication network,
  • the communication control device includes: When generating a notification related to a handover process for switching the voice communication method of the mobile communication device from the packet switching method to the circuit switching method, it can be used in an information communication network of the circuit switching method controlled by the own device.
  • Notification generating means for adding capability information indicating the type of voice communication to the notification;
  • the mobile communication device Information for executing negotiation for exchanging information on communication capability with the packet-switching information communication network when the capability information is received from the circuit-switching information communication network through the packet-switching information communication network Exchange means.
  • the communication control apparatus of the present invention Types of voice communication that can be used in a circuit-switched information communication network controlled by the local device when generating notifications related to handover processing for switching the voice communication method of a mobile communication device from packet-switched to circuit-switched Notification generating means for adding capability information indicating the above to the notification.
  • the mobile communication device of the present invention When a notification related to handover processing for switching the voice communication method from the packet switching method to the circuit switching method is received from the circuit switching method information communication network through the packet switching method information communication network, When capability information indicating the type of voice communication that can be used in a circuit switching type information communication network is included, a negotiation for exchanging information on communication capability with the packet switching type information communication network is executed. Information exchange means.
  • the communication control method of the present invention includes: When a notification related to handover processing for switching the voice communication method from the packet switching method to the circuit switching method is received from the circuit switching method information communication network through the packet switching method information communication network, The computer determines whether or not the capability information indicating the type of voice communication that can be used in the circuit-switched information communication network is included, If it is included, the computer executes a negotiation for exchanging information regarding communication capability with the packet-switching information communication network.
  • the program storage medium of the present invention includes: When a notification related to handover processing for switching the voice communication method from the packet switching method to the circuit switching method is received from the circuit switching method information communication network through the packet switching method information communication network, A process for determining whether or not capability information indicating a type of voice communication that can be used in a circuit switching type information communication network is included; If it is included, a computer program for causing the computer to execute a process of executing negotiation for exchanging information on communication capability with the packet-switching information communication network is stored.
  • the main object of the present invention is also achieved by a communication control method corresponding to the voice communication network, communication control apparatus, and mobile communication apparatus of the present invention having the above-described configuration.
  • the main object of the present invention is also achieved by a computer program for realizing the voice communication network, communication control device, mobile communication device and communication control method of the present invention by a computer, and a storage medium for storing the computer program.
  • the present invention it is possible to change the type of voice communication during a call after a handover is performed that switches from voice communication based on packet switching to voice communication based on circuit switching.
  • 1 is a block diagram showing a simplified configuration of a voice communication network system according to a first embodiment of the present invention. It is a block diagram which simplifies and represents the structural example of the mobile communication apparatus which comprises the audio
  • 2nd Embodiment it is a sequence diagram showing the processing flow in the case of handing over a voice communication system from a packet switching system to a circuit switching system. It is a sequence diagram showing the general processing flow in the case of handing over a voice communication system from a packet switching system to a circuit switching system using SRVCC. It is a sequence diagram showing other embodiment (1) which concerns on this invention. It is a sequence diagram showing other embodiment (2) which concerns on this invention. It is a sequence diagram showing other embodiment (3) which concerns on this invention.
  • FIG. 1 is a block diagram showing a simplified configuration of the voice communication network system according to the first embodiment of the present invention.
  • the voice communication network system 1 according to the first embodiment includes a mobile communication device 2 and a communication control device 3.
  • the communication control device 3 has a function of controlling communication in the circuit switching type information communication network 7.
  • the communication control device 3 includes a notification generation unit (notification generation unit) 5.
  • the notification generation unit 5 has a function of generating a notification related to a handover process for switching the voice communication system of the mobile communication device 2 from the packet switching system to the circuit switching system.
  • the notification generation unit 5 adds capability information to the notification when generating the notification.
  • the capability information is information indicating the type of voice communication that can be used in the circuit switching type information communication network 7 controlled by the communication control device 3.
  • the mobile communication device 2 can perform packet-switched voice communication and circuit-switched voice communication.
  • the mobile communication device 2 includes an information exchange unit (information exchange unit) 10.
  • the information exchange unit 10 performs a negotiation with the packet-switched information communication network 8 when the capability information is received from the circuit-switched information communication network 7 through the packet-switched information communication network 8. It has.
  • Negotiation is a process of exchanging information about communication capability.
  • the mobile communication device 2 when performing a handover for switching the voice communication method from the packet switching method to the circuit switching method, can perform the capability from the information communication network 7 of the circuit switching method. Can receive information. Then, by receiving the capability information, the mobile communication device 2 performs negotiation with the information communication network. As a result, the mobile communication device 2 and the circuit switching type information communication network 7 are in a state of acquiring capability information indicating the type of voice communication that can be used (executed) after handover switching. For this reason, the mobile communication device 2 and the circuit-switched information communication network 7 can change the type of voice communication (voice service) during a call based on the circuit-switched system after handover switching.
  • the information exchange unit 10 of the mobile communication device 2 constituting the voice communication network system 1 is realized by a control device 11 as shown in FIG. That is, as shown in FIG. 2, the mobile communication device 2 includes a control device 11 and a storage device 12.
  • the control device 11 is a computer, and has, for example, a CPU (Central Processing Unit).
  • the storage device 12 has a storage medium for storing a computer program (program) 13.
  • the program 13 represents a processing procedure for causing the control device (computer) 11 to execute the following processing. That is, the processing procedure is that when a notification related to a handover process for switching the voice communication system from the packet switching system to the circuit switching system is received from the circuit switching system information communication network 7 through the packet switching system information communication network 8. It is a processing procedure.
  • the processing procedure includes a processing procedure for determining whether or not capability information is included in the received notification, and a packet switching method when it is determined that the notification includes capability information. This is a processing procedure for executing negotiation with the information communication network 8.
  • the control device 11 reads the program 13 from the storage device 12 and executes the program 13 to realize the function of the information exchange unit 10.
  • FIG. 3 is a block diagram showing a simplified configuration of the voice communication network system according to the second embodiment of the present invention.
  • the voice communication network system 20 of the second embodiment has a mobile communication device (UE (User Equipment)) 21.
  • the voice communication network system 20 has an MSC (Mobile Switching Center) server (MGW (Media Gateway Gateway)) 23, an MSC (Mobile Switching Center) 24, and a UTRAN (Universal Terrestrial Radio Access Network) 25 as nodes. is doing.
  • the voice communication network system 20 includes a PDN-GW (Packet Data Network-Gateway) 28, an IMS (Internet protocol Multimedia Subsystem) server 29, and an MME (Mobility Management Entity) 30 as nodes.
  • the voice communication network system 20 has SGSN (Serving GPRS (General Packet Radio Service) Support Node) 31, HSS (Home Subscriber Server) 32, and E-UTRAN (Evolved-UTRAN) 33 as nodes. is doing.
  • MSC server (MGW) 23, MSC 24, UTRAN 25 and SGSN 31 constitute a UMTS (Universal Mobile Telecommunications System) system.
  • the UMTS system functions as a circuit switching type information communication network 22.
  • the PDN-GW 28, the MME 30, and the E-UTRAN 33 constitute an LTE (Long Term Evolution) system.
  • the LTE system is a packet-switching information communication network 27.
  • the MSC 24 functions as a communication control device that performs overall communication control in the circuit switching type information communication network 22.
  • the voice communication network system 20 of the second embodiment may have GERAN (GSM (registered trademark) Enhanced Radio Access Network) instead of the UTRAN 25.
  • GSM registered trademark
  • Each of the nodes 23 to 25 and 28 to 33 constituting the voice communication network system 20 is realized by a computer device. That is, each of the nodes 23 to 25 and 28 to 33 (computer device) is given a computer program (program) representing a processing procedure for controlling the operation of the node in a state stored in a storage medium. Each computer device reads a computer program from the storage medium and executes the computer program. Thereby, each computer device functions as predetermined nodes 23 to 25 and 28 to 33, respectively.
  • Each of the nodes 23 to 25 and 28 to 33 has various functions based on the standards established by the standardization organization “3GPP (3rd Generation Partnership Project)”. Here, description of these functions is omitted.
  • the voice communication network system 20 of the second embodiment is characterized by a handover process (hereinafter also referred to as “P ⁇ C handover process”) for switching the voice communication system of the mobile communication device 21 from a packet switching system to a circuit switching system.
  • P ⁇ C handover process for switching the voice communication system of the mobile communication device 21 from a packet switching system to a circuit switching system.
  • the P ⁇ C handover process according to the second embodiment has the following process added to the handover process based on SRVCC (Single Radio Radio Voice Call Continuity).
  • the MSC 24 which is a communication control device has a notification generation unit (notification generation unit) 35 as a functional unit in addition to a function based on the 3GPP standard.
  • the notification generation unit 35 has a function of adding capability information to a notification (Prepare Handover Response message) related to the P ⁇ C handover process, similarly to the notification generation unit 5 in the first embodiment.
  • the capability information (BC (Bearer Capability)) is information indicating the type of voice communication that can be used in the circuit switching type information communication network 22 in which the own device (MSC 24) is included.
  • Types of voice communication include voice-only call communication and videophone communication including voice and video. Furthermore, there are a plurality of types of call communication and videophone communication, each of which has a different method.
  • the MSC 24 is provided with a storage device (storage medium).
  • the storage device stores a computer program representing a processing procedure in the notification generation unit 35.
  • the computer device 38 of the MSC 24 reads out the computer program from the storage device and executes the computer program, thereby realizing the function of the notification generation unit 35.
  • the mobile communication device 21 constituting the voice communication network system 20 of the second embodiment is capable of voice communication by a packet switching method (voice communication by VoIP (VoiceoOver Internet Protocol)) and voice communication by a circuit switching method.
  • Device mobile station
  • the mobile communication device 21 includes a computer device (for example, CPU (Central Processing Unit)) 40 and a storage device (storage medium) 41.
  • the storage device 41 stores a computer program (program) that controls the overall operation of the mobile communication device 21.
  • the computer device 40 implements various functions of the mobile communication device 21 by reading a computer program from the storage device 41 and executing the computer program.
  • the mobile communication device 21 has an information exchange unit (information exchange unit) 36 and a capability notification unit (capability notification unit) 37 as functional units realized by the computer device 40 (computer program). is doing. There are various functions (configurations) of the mobile communication device 21 other than the information exchange unit 36 and the capability notification unit 37.
  • the mobile communication device 21 may have an appropriate function based on, for example, specifications and the like, and the description in this embodiment is omitted.
  • the information exchange unit 36 When the information exchange unit 36 receives capability information (BC) from the circuit exchange type information communication network 22 through the packet exchange type information communication network 27, the information exchange unit 36 uses the capability information to communicate with the packet exchange type information communication network 27. It has a function to execute negotiation.
  • BC capability information
  • the capability notification unit 37 notifies the circuit communication type information communication network 22 of information (hereinafter also referred to as “specification information”) indicating the type of voice communication that can be performed by the own device (mobile communication device) 21. It has a function to determine whether or not it is necessary. Further, the capability notification unit 37 has a function of notifying the specification information to the circuit switching type information communication network 22 when it is determined that the necessity is required.
  • specification information information indicating the type of voice communication that can be performed by the own device (mobile communication device) 21. It has a function to determine whether or not it is necessary. Further, the capability notification unit 37 has a function of notifying the specification information to the circuit switching type information communication network 22 when it is determined that the necessity is required.
  • the mobile communication device 21 performs negotiation when the voice communication method is handed over from the packet switching method to the circuit switching method.
  • the mobile communication device 21 and the circuit switching type information communication network 22 can acquire information on the type of voice communication that can be used (executed) in common.
  • the mobile communication device 21 and the information communication network 22 of the circuit switching system can be modified to change the type of the voice communication after the voice communication system is switched from the packet switching system to the circuit switching system by handover. It becomes.
  • the mobile communication device (UE) 21 that has been performing voice communication by the packet switching method (VoIP) can communicate with the information communication network 27 of the packet switching method
  • the information communication network of the circuit switching method is used.
  • the mobile phone has moved to an area where communication with the terminal 22 is effective.
  • the mobile communication device (UE) 21, the circuit exchange type information communication network 22 and the packet exchange type information communication network 27 perform the P ⁇ C handover process.
  • the mobile communication device (UE) 21 transmits Measurement Report to the packet-switched information communication network 27 (E-UTRAN 33) (S1).
  • the E-UTRAN 33 determines whether or not to start a handover process (P ⁇ C handover process) by SRVCC.
  • the E-UTRAN 33 decides to start the P ⁇ C handover process, the E-UTRAN 33 transmits a Handover Request (handover request) to the MME 30 (S2).
  • the MME 33 separates the voice bearer from all other packet switching (PS (Packet (Switch)) bearers regarding the mobile communication device 21.
  • PS Packet (Switch)
  • the MME 30 notifies the MSC server 23 in the information communication network 22 of the circuit switching system that the handover from the packet switching system to the circuit switching system (CS (Circuit Switch)) is performed regarding the voice bearer in the mobile communication device 21. (S3). That is, the MME 30 transmits PS (Packet Switch) to CS (Circuit Switch) Request message to the MSC server 23.
  • CS Circuit Switch
  • the MSC server 23 notifies the MSC 24 of a handover request (PreparepaHandover Request message) (S4). Then, the MSC 24 sends a Relocation25Request ⁇ ⁇ / ⁇ Handover Request to the UTRAN 25 to request the UTRAN 25 (circuit-switched information communication network 22) to allocate radio resources (S5). The UTRAN 25 returns an answer (response) corresponding to the request to the MSC 24 (S6).
  • the notification generator 35 of the MSC 24 In response to this reply, the notification generator 35 of the MSC 24 generates a notification (Prepare Handover Response message (hereinafter also referred to as “response message”)). At this time, the notification generation unit 35 adds capability information (BC (Bearer Capability)) to the generated notification (response message).
  • the capability information (BC) is information indicating the type of voice communication (type of voice service) that can be used (executed) in the circuit switching type information communication network 22 including the MSC 24.
  • one or two pieces of capability information are added to the response message with reference to processing when voice communication is started by calling and receiving by the circuit switching method. For example, the call message BC1 and the videophone call BC2 are added to the response message as capability information.
  • the MSC 24 transmits capability information (BC1, BC2) to the MSC server 23 by transmitting a response message to the MSC server 23 (S7).
  • the MGW associated with the MSC server 23 and the MSC 24 establish a connection by the circuit switching method for the mobile communication device (UE) 21 to be handed over (S8). That is, the MGW and the MSC 24 execute Establish circuit processing.
  • the notification generation unit 35 in the MSC 24 adds capability information (BC1, BC2) to the notification generated in the process of Establish circuit instead of generating a response message including the capability information (BC1, BC2).
  • the capability information (BC1, BC2) may be transmitted to the MSC server 23.
  • the MSC server 23 transmits an SRVCC ⁇ PS to CS ResponseSRmessage (notification) to the MME 30 after the connection with the MSC 24 is established (S9). At this time, the MSC server 23 transmits the capability information (BC1, BC2) to the MME 30 by adding the capability information (BC1, BC2) received from the MSC 24 to the notification (message).
  • the capability information BC1, BC2
  • the MME 30 When the MME 30 receives the SRVCC PS CS Response message from the MSC server 23, the MME 30 synchronizes the prepared relocation between the circuit exchange type information communication network 22 and the packet exchange type information communication network 27. Thereafter, the MME 30 transmits a Handover Command message to which the capability information (BC1, BC2) received from the MSC server 23 is added to the E-UTRAN 33 (S10).
  • the capability information BC1, BC2
  • the E-UTRAN 33 transmits the HandoverHandE-UTRAN Command message (hereinafter also referred to as command notification) to the mobile communication device (UE) 21 upon receiving the Handover Command message (S11). At this time, the E-UTRAN 33 adds the capability information (BC1, BC2) received from the MME 30 to the command notification, thereby transmitting the capability information (BC1, BC2) to the mobile communication device 21.
  • command notification the HandoverHandE-UTRAN Command message
  • the mobile communication device 21 When the mobile communication device 21 receives the capability information (BC1, BC2) together with the command notification from the E-UTRAN 33, the mobile communication device 21 executes bearer negotiation (Bearer Negotiation) with the E-UTRAN 33 (packet-switched information communication network 27). (S12). As a result, the mobile communication device 21 and the circuit switching type information communication network 22 are in a state of acquiring the types of voice communication available to each other.
  • the capability notification unit 37 of the mobile communication device 21 performs the bearer negotiation and then the type of voice communication that can be used in the circuit-switched information communication network 22 to be used (connected) after handover switching, and the own device 21 executes Contrast with possible voice communication types. Then, the capability notification unit 37 is executed by the own device 21 as required (for example, when there is a difference in the types of available voice communication between the own device 21 and the circuit switching type information communication network 22).
  • the specification information indicating the type of possible voice communication is transmitted to the UTRAN 25 (S13). Specifically, after executing bearer negotiation, the mobile communication device 21 adjusts the communication frequency to the frequency of the cell (area) handled by the UTRAN 25 in the circuit switching type information communication network 22 after handover switching. Then, the mobile communication device 21 adds the specification information of the own device 21 to the Handover-> UTRAN-Complete-message (handover completion notification) transmitted to the UTRAN 25.
  • the mobile communication device 21 and the circuit communication information communication network 22 are: Modify (switching) processing is executed (S15).
  • Modify (switching) processing is executed (S15).
  • modification (switching) is possible. .
  • the mobile communication device 21 can change to the videophone communication based on the circuit switching system with a different voice communication type while continuing the communication during the circuit switching system communication (S16).
  • the capability information (from the circuit-switched information communication network 22 (MSC 24) to the mobile communication device 21 via the packet-switched information communication network 27) BC1, BC2) are transmitted.
  • bearer negotiation is executed as one process of the P ⁇ C handover process.
  • the information communication network 22 of the circuit switching system after the handover switching and the mobile communication device 21 acquire information on the type of voice communication that can be executed by the other party. It becomes a state.
  • the mobile communication device 21 and the information communication network 22 of the circuit switching system can change the type of the voice communication (Modify) while continuing the communication during the voice communication after switching to the circuit switching system by the handover. It becomes.
  • the mobile communication device 21 and the circuit-switched information communication network 22 perform the voice communication after the handover.
  • the voice communication type cannot be changed by the circuit switching method.
  • FIG. 5 shows a flow of general P ⁇ C handover processing by SRVCC.
  • the processing contents of the processing S10 to S15 are the same as the processing contents of the processing S1 to S6 shown in FIG. 4 described above, but the capability information (BC1) is used for notification from the MSC 24 to the MSC server 23. , BC2) are not included.
  • the capability information is not included (not added) in each message transmitted sequentially. That is, the capability information is not transmitted from the circuit-switched information communication network 22 (MSC server 23) to the mobile communication device 21 via the packet-switched information communication network 27 (MME 30, E-UTRAN 33).
  • the connection is established between the mobile communication device 21 and the circuit-switched information communication network 22 without performing bearer negotiation. Thereafter, the mobile communication device 21 performs voice communication with the communication partner (destination network) through the circuit switching type information communication network 22 (UTRAN 25) (S22).
  • the mobile communication device 21 and the circuit-switched information communication network 22 are connected during the voice communication.
  • the type of voice communication by the exchange method cannot be changed.
  • the voice communication network system 20 of the second embodiment executes bearer negotiation in the P ⁇ C handover process as described above, so that modification (switching) is possible during voice communication by the circuit switching method. It is.
  • the present invention is not limited to the first and second embodiments, and various embodiments can be adopted.
  • the P ⁇ C handover process described in the second embodiment is a process in the case of performing a handover from a packet switching system based on the LTE system to a circuit switching system based on the UMTS system.
  • the handover process involving the present invention is not limited to the handover process from the LTE system to the UMTS system.
  • the handover process involved in the present invention may be a handover process from a packet switching system based on the UMTS system to a circuit switching system based on the UMTS system.
  • FIG. 6 is a sequence diagram showing a processing flow in the case of handing over from the packet switching method by the UMTS system to the circuit switching method by the UMTS system based on SRVCC in the other embodiment (1) according to the present invention.
  • a measurement report is transmitted from the mobile communication device (UE) 43 to the packet-switched information communication network (UTRAN 44) (S30).
  • UTRAN44 transmits Relocation
  • message to SGSN45 (S31).
  • the SGSN 45 receives the Relocation / Request / message and transmits the PS / to / CS / Request / message to the MSC server 46 (S32).
  • the MSC server 46 sends a Prepare Handover Request message to the MSC 47 (S33), and the MSC 47 sends a Relocation request / Handover Request to the UTRAN 48 (S34).
  • the UTRAN 48 returns an answer (response) corresponding to the request to the MSC 47 (S35).
  • the notification generator provided in the MSC 47 adds capability information to the notification when generating the notification (Prepare Handover Response message). Then, the notification generation unit transmits the notification to the MSC server 46 (S36).
  • capability information is information indicating the type of voice communication that can be used in a circuit-switched information communication network after handover switching.
  • the MSC server 46 and the MSC 47 execute Establish circuit processing (S37).
  • the capability information is added to the notification created by the Establish circuit processing, so that the MSC 47 to the MSC server 46 May be sent to.
  • the MSC server 46 transmits a PS-to-CS Response message including capability information to the SGSN 45 (S38).
  • the SGSN 45 transmits a Relocation Command message including the capability information to the UTRAN 44 (S39).
  • the UTRAN 44 transmits a Handover from UTRAN Command message including the capability information to the mobile communication device (UE) 43 (S40).
  • the mobile communication device (UE) 43 executes bearer negotiation with the information communication network (S41).
  • the mobile communication device (UE) 43 matches the frequency of communication with the frequency of the cell (area) that the UTRAN 48 is in charge of in the circuit switching type information communication network after handover switching, and transmits a Handover to UTRAN complete message to the UTRAN 48. (S42).
  • the connection between the mobile communication device (UE) 43 and the circuit-switched information communication network is established, and communication with the communication partner via the circuit-switched information communication network is established.
  • Voice communication is executed (S43).
  • the mobile communication device (UE) 43 and the circuit-switched information communication network can change the type of voice communication (Modify) ( S44). Thereby, during voice communication by the circuit switching method after handover, for example, it is possible to switch from voice-only call communication to videophone communication including voice and video (S45).
  • the P ⁇ C handover process involved in the present invention may be a handover process for switching the voice system from the packet switching system using the LTE system to the circuit switching system using the GSM (registered trademark) system.
  • FIG. 7 is a sequence diagram showing a processing flow in the case of handing over from a packet switching method using an LTE system to a circuit switching method using a GSM (registered trademark) system based on SRVCC in another embodiment (2) according to the present invention. It is.
  • the MSC 54 in the circuit switching type information communication network generates a notification including the same capability information, and transmits the notification to the MSC server 53 ( S56 or S57).
  • the capability information is transmitted to the mobile communication device (UE) 50 via the MSC server 53, the MME 52, and the E-UTRAN 51 (S58 to S60).
  • bearer negotiation is executed between the mobile communication device (UE) 50 and the information communication network (S61), and then the handover complete message from the mobile communication device (UE) 50 toward the BSS (Base station Subsystem) 55.
  • the mobile communication device (UE) 50 and the circuit-switched information communication network can perform the voice communication by the circuit-switched system after the handover, It is possible to change the type of voice communication (Modify) (S64, S65).
  • the BSS 55 is a node having a base station BTS (Base Transceiver Station) and a BSC (Base Station Controller) that manages radio resources in GSM (registered trademark).
  • BTS Base Transceiver Station
  • BSC Base Station Controller
  • the handover process involved in the present invention may be a handover process for switching the voice communication system from the packet switching system using the UMTS system to the circuit switching system using the GSM (registered trademark) system.
  • FIG. 8 is a sequence diagram showing a processing flow in the case of handing over from a packet switching system using a UMTS system to a circuit switching system using a GSM (registered trademark) system based on SRVCC in another embodiment (3) according to the present invention. It is.
  • a notification including the same capability information is generated in the MSC 64 in the circuit switching type information communication network, and the notification is transmitted to the MSC server 63 ( S76 or S77).
  • the capability information is transmitted to the mobile communication device (UE) 60 via the MSC server 63, the SGSN 62, and the UTRAN 61 (S78 to S80).
  • bearer negotiation is executed between the mobile communication device (UE) 60 and the information communication network (S81), and then, the Handover Complete message from the mobile communication device (UE) 60 toward the BSS (Base65Station Subsystem) 65. Is transmitted (S82). This establishes a connection between the mobile communication device (UE) 60 and the circuit-switched information communication network.
  • the mobile communication device (UE) 60 and the circuit-switched information communication network can perform the voice communication by the circuit-switched system after the handover.
  • the type of voice communication can be changed (S84, S85). Note that the processes S70 to S75 in the P ⁇ C handover process are the same as the processes S30 to S35 in FIG. Here, the description is omitted.
  • the present invention is used for an apparatus related to a wireless communication system including voice communication.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention vise à permettre le changement de type de communication audio au moyen d'un système de commutation de circuits après la réalisation d'un transfert où le système de communication audio subit une commutation pour passer d'un système de commutation de paquets audit système de commutation de circuits. Un système de réseau de communication audio (1) comprend un appareil de communication mobile (2) et un appareil de commande de la communication (3). Ledit appareil de commande de la communication (3) comporte une unité de génération de notification (5). Lors de la génération d'une notification en lien avec un processus de transfert où le système de communication audio dudit appareil de communication mobile (2) subit une commutation pour passer d'un système de commutation de paquets à un système de commutation de circuits, ladite unité de génération de notification (5) ajoute à la notification des informations relatives à la capacité. Les informations relatives à la capacité sont des informations qui indiquent le type de communication audio disponible au sein du réseau de communication d'informations (7) du système de commutation de circuits. L'appareil de communication mobile (2) comprend une unité d'échange d'informations (10). Lorsqu'elle a reçu les informations relatives à la capacité qui proviennent du réseau de communication d'informations (7) du système de commutation de circuits et qui passent par le réseau de communication d'informations (8) du système de commutation de paquets, ladite unité d'échange d'informations (10) mène une négociation avec le réseau de communication d'informations (8) du système de commutation de paquets.
PCT/JP2013/004980 2012-08-29 2013-08-23 Système de réseau de communication audio, appareil de commande de la communication, appareil de communication mobile, procédé de commande de la communication et support d'enregistrement de programme WO2014034058A1 (fr)

Applications Claiming Priority (2)

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JP2012188836 2012-08-29
JP2012-188836 2012-08-29

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WO2014034058A1 true WO2014034058A1 (fr) 2014-03-06

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011056046A2 (fr) * 2009-11-09 2011-05-12 Samsung Electronics Co., Ltd. Procédé et système de support de continuité d'appel radio vidéo unique pendant un transfert
JP2012054620A (ja) * 2010-08-06 2012-03-15 Ntt Docomo Inc 移動通信方法及び移動通信システム
JP2012134877A (ja) * 2010-12-22 2012-07-12 Ntt Docomo Inc 移動通信方法、移動管理ノード、交換機及び移動局
WO2012108423A1 (fr) * 2011-02-07 2012-08-16 株式会社エヌ・ティ・ティ・ドコモ Procédé de communications entre mobiles et nœud de gestion mobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011056046A2 (fr) * 2009-11-09 2011-05-12 Samsung Electronics Co., Ltd. Procédé et système de support de continuité d'appel radio vidéo unique pendant un transfert
JP2012054620A (ja) * 2010-08-06 2012-03-15 Ntt Docomo Inc 移動通信方法及び移動通信システム
JP2012134877A (ja) * 2010-12-22 2012-07-12 Ntt Docomo Inc 移動通信方法、移動管理ノード、交換機及び移動局
WO2012108423A1 (fr) * 2011-02-07 2012-08-16 株式会社エヌ・ティ・ティ・ドコモ Procédé de communications entre mobiles et nœud de gestion mobile

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