Abstract: A SIP control apparatus is provided. The SIP control apparatus is connected to a management apparatus controlling call processing policy in an IP network, and controls a voice call made by a user apparatus. The SIP control apparatus includes a determination unit configured to, in the case where a call connection request is received from the user apparatus, determine whether authentication of the user apparatus has been completed by querying the management apparatus; and a call processing unit configured to, in the case where it is determined that the authentication of the user apparatus has been completed, perform call connection processing without authenticating the user apparatus.

Abstract: A Home Subscriber Server (HSS) determines whether roaming of voice communication via an IP Multimedia Subsystem (IMS) is supported in the Visited Public Land Mobile Network (VPLMN) or not, and transmits to a mobility management entity (MME) a signal that includes a ‘voice supported’ or ‘voice not supported’ indicator that indicates whether the roaming is supported or not. The MME receives the indicator from the HSS, and transmits to a User Equipment (UE) an ‘Attach Accept’ as a response to an ‘Attach Request’ for the VPLMN. The MME then transmits to the UE, based on the indicator received from the HSS, the ‘Attach Accept’ that includes an indicator that indicates whether the roaming is supported or not.

Abstract: The disclosure provides a mobile communication system, a communication control device, a mobility management entity, and a mobile communication method which can avoid a failure in making an emergency call via an IMS when a mobile station connects to a VPLMN. An HSS 100 judges whether or not an emergency call origination via an IMS 500 is supported in the VPLMN, and transmits a signal including an indicator, EM supported or EM not supported, which indicates whether or not the emergency call origination is supported, to an MME 300. The MME 300 receives the indicator from the HSS 100 and transmits, to the UE 20, Attach Accept responding to Attach Request to the VPLMN from a UE 20. Based on the indicator received from the HSS 100, the MME 300 transmits, to the UE 20, Attach Accept including the indicator which indicates whether or not the emergency call is supported.

Abstract: A mobile station and a mobile communication method are provided, which are, if being able to output a local ringing tone and a NW-provided ringing tone, capable of continuing a ringing tone outputted before a transition from LTE to 3G by aSRVCC even after the transition is made. A UE (100A) executes continuation processing (aSRVCC) of a 3G voice communication service if the mobile station makes a transition of the connection destination from LTE to 3G during an alert period when the other party in the voice communication service is being alerted. Further, the UE (100A) outputs a NW-provided ringing tone without outputting a local ringing tone based on data stored in the mobile station after making a transition to a second radio access system if aSRVCC is executed during a period when the NW-provided ringing tone is being outputted.

Abstract: A mobile station and a mobile communication method are provided, which are capable of continuing output of an announcement sound even if a transition is made from LTE to 3G by SRVCC when the announcement sound is being received from a network side in response to a call request to a call-terminating terminal. A UE 100A executes continuation processing (SRVCC) of a 3G voice communication service if the mobile station makes a transition of a connection destination from LTE to 3G. Further, the UE 100A receives the announcement sound via LTE or 3G, and outputs the announcement sound after requesting alerting of the other party and before starting the alerting of the other party. The UE 100A outputs the announcement sound even after making a transition to 3G if the continuation processing of the voice communication service is executed during a period when the announcement sound is being outputted.

Abstract: A mobile station and a mobile communication method are provided, which are, if being able to output a local ringing tone and a NW-provided ringing tone, capable of continuing a ringing tone outputted before a transition from LTE to 3G by aSRVCC even after the transition is made. A UE (100A) executes continuation processing (aSRVCC) of a 3G voice communication service if the mobile station makes a transition of the connection destination from LTE to 3G during an alert period when the other party in the voice communication service is being alerted. Further, the UE (100A) outputs a NW-provided ringing tone without outputting a local ringing tone based on data stored in the mobile station after making a transition to a second radio access system if aSRVCC is executed during a period when the NW-provided ringing tone is being outputted.

Abstract: A mobile station and a mobile communication method are provided, which are capable of continuing output of an announcement sound even if a transition is made from LTE to 3G by SRVCC when the announcement sound is being received from a network side in response to a call request to a call-terminating terminal. A UE 100A executes continuation processing (SRVCC) of a 3G voice communication service if the mobile station makes a transition of a connection destination from LTE to 3G. Further, the UE 100A receives the announcement sound via LTE or 3G, and outputs the announcement sound after requesting alerting of the other party and before starting the alerting of the other party. The UE 100A outputs the announcement sound even after making a transition to 3G if the continuation processing of the voice communication service is executed during a period when the announcement sound is being outputted.

Abstract: A mobile communication method according to the present invention includes a step in which the gateway apparatus P-GW transmits “Proxy Binding Acknowledgement containing “O Flag setting information” indicating whether or not a DNSv6 address is allocated to the mobile station UE to the gateway apparatus S-GW in response to the reception of the “Proxy Binding Update”, and a step in which the gateway apparatus S-GW instructs the mobile station UE that there is no need to acquire a DNSv6 address using a DHCP request signal with “O Flag” in RA when the received “O Flag setting information” indicates that a DNSv6 address is allocated to the mobile station UE.

Abstract: When a browser is started up by a user, a packet call establishment request unit of a cellular phone requests the start of processing for establishing a packet call, and a communication control unit executes a packet all establishment processing. A mobile communication network sends a packet call establishment response message to the cellular phone, then sends packet data. A packet date storage unit of the cellular phone stores the packet data in a memory when packet data is received before the packet call establishment response message. If the packet call establishment response message is received thereafter, the packet data storage unit reads the packet data from the memory, and deletes the packet data from the memory. The packet processing execution unit displays a screen corresponding to the packet data on the display. Thereby, instances when packet data is discarded is decreased.

Abstract: A mobile station (UE) according to the present invention includes: an emergency call originating process unit configured to originate an emergency call via a cell under the control of a UMTS-scheme network having a circuit switching network, when an emergency call originating trigger is detected while camping on a cell under the control of an LTE-scheme network that is a packet switching dedicated network, and when it is determined that camping on the cell under the control of the UMTS-scheme network is possible.

Abstract: A transmission server includes an emergency information generator configured to generate emergency information indicating at least occurrence of emergency, an incoming operation identifier generator configured to generate an incoming operation identifier indicating at least an incoming operation for the broadcast message, and a communication unit configured to transmit the broadcast message including the emergency information and the incoming operation identifier. A mobile terminal includes a communication unit configured to receive the broadcast message, and a notification unit configured to execute the incoming operation for the broadcast message in accordance with the incoming operation indicated by the incoming operation identifier generator. The broadcast message in the radio network includes at least a message field and a specific type field. The emergency information is included in the message field, and the incoming operation identifier is included in the specific type field.

Abstract: It is an object of the present invention to improve the convenience for users by enabling messages during call out from the user of the communication terminal on the outgoing side to the user of a communication terminal on the incoming side, which are transmitted from the communication terminal on the outgoing side, to be checked by the user of the communication terminal on the outgoing side when calling out. The outgoing terminal 10a includes a display device 11, a call connection establishment unit 12 that transmits call out signals for calling out to the incoming terminal 10b, a transmitted information setting and adding unit 13 that adds display information that is displayed in the incoming terminal 10b to the call out signal, and a display control unit 14 that displays on the display device 11 the display information added to the call out signal when the call out signal is transmitted.

Abstract: When a browser is started up by a user, a packet call establishment request unit of a cellular phone requests the start of processing for establishing a packet call, and a communication control unit executes a packet all establishment processing. A mobile communication network sends a packet call establishment response message to the cellular phone, then sends packet data. A packet date storage unit of the cellular phone stores the packet data in a memory when packet data is received before the packet call establishment response message. If the packet call establishment response message is received thereafter, the packet data storage unit reads the packet data from the memory, and deletes the packet data from the memory. The packet processing execution unit displays a screen corresponding to the packet data on the display. Thereby, instances when packet data is discarded is decreased.

Abstract: It is an object of the present invention to improve the convenience for users by enabling messages during call out from the user of the communication terminal on the outgoing side to the user of a communication terminal on the incoming side, which are transmitted from the communication terminal on the outgoing side, to be checked by the user of the communication terminal on the outgoing side when calling out. The outgoing terminal 10a includes a display device 11, a call connection establishment unit 12 that transmits call out signals for calling out to the incoming terminal 10b, a transmitted information setting and adding unit 13 that adds display information that is displayed in the incoming terminal 10b to the call out signal, and a display control unit 14 that displays on the display device 11 the display information added to the call out signal when the call out signal is transmitted.