Abstract: A communication device includes a network side communication unit that receives emergency information from an information broadcasting node; a UE side communication unit that communicates a communication signal with user equipment through a radio base station; and a determination unit that determines whether to allow state transition, when the UE side communication unit receives a request signal requesting the state transition of an RRC protocol state from the user equipment, subsequent to broadcasting a Primary Notification signal providing notice of broadcasting of the emergency information. When the state transition is from a state in which receiving of the emergency information is enabled to a state in which receiving of the emergency information is disabled, the determination unit determines to disallow the state transition, and broadcasts a Secondary Notification signal including the emergency information.

Abstract: A mobile device (300) is wirelessly connectable to an LTE system configured to notify the mobile device of priority call information indicating a priority level of processing for an terminating call, and a 3G system configured to inform the mobile device of access class barring information specifying barring of an terminating call depending on an access class of the terminating call. If the terminating call is a priority call whose priority level in the priority call information indicates a higher processing priority than other calls and the barring by the access class barring information is set, the mobile device (300) executes connection to 3G system (20) and processes the terminating call, regardless of the access class barring information.

Abstract: A mobile communication method according to the present invention includes a step of a radio network controller of a first communication scheme transmitting an instruction signal to a mobile station UE in a case where a radio access capability of the mobile station UE is contained in the received connection setup request signal, the instruction signal instructing the mobile station UE to make an attempt to set up a connection in a cell of a second communication scheme, and a step of the mobile station UE setting up the connection in the cell of the second communication scheme in response to the received instruction signal, wherein in the mobile station UE transmits a connection setup request signal not containing the radio access capability of the mobile station UE, in a case where the mobile station UE detects the predetermined trigger but the attempt to setup the connection in the cell of the second communication scheme has been made a predetermined number of times or more within a predetermined period of ti

Abstract: A communication device includes a network side communication unit that receives emergency information from an information broadcasting node; and a UE side communication unit that communicates a communication signal with user equipment (UE) through a radio base station. The UE side communication unit broadcasts a Secondary Notification signal including the emergency information, subsequent to broadcasting a Primary Notification signal providing notice of broadcasting of the emergency information, and individually transmitting a command signal for transition of an RRC protocol state or switching to another cell to the UE. The transition of the RRC protocol state is from a state where reception of the emergency information is disabled to a state where reception of the emergency information is enabled, and the other cell is such that the UE can receive the Secondary Notification signal, irrespective of the RRC protocol state of the UE.

Abstract: A mobile station UE includes a manager configured to manage a macro cell and a home cell in association with each other, the mobile station being authorized to access the home cell, and a camping-on processor configured to determine, when receiving a broadcast information from the macro cell, whether to start performing camp-on in the home cell or not according to a comparison result between a radio quality of the home cell which is managed in association with the macro cell and a radio quality in a camping-on cell.

Abstract: To improve continuity in a communication service while preventing wasteful power consumption in the mobile station, in the mobile communication method of the present invention comprises a step A of the mobile station communicating with a macro cell measuring and reporting reception quality in a neighboring cell of the macro cell, the neighboring cell being notified by a network device, and the network device detecting a home cell that does not allow access from the mobile station, and step B of the network device notifying the mobile station of the neighboring cell of the macro cell excluding the detected cell that does not allow access from the mobile station.

Abstract: A paging signal transmission method which transmits the paging signal to a position registration area of a mobile station in response to incoming to the mobile station. When a wireless base station managing a cell belonging to the position registration area of the mobile station does not permit access to the mobile station, the method does not transmits the paging signal to the cell.

Abstract: When receiving an extension connection request from a first mobile terminal, a first route selection device selects a first extension connection route from among a plurality of extension connection routes and transmits the type of the first extension connection route and calling-side address information used on the first extension connection route to a second route selection device. The second route selection device selects a second extension connection route from among the plurality of extension connection routes and transmits the type of the second extension connection route and called-side address information used on the second extension connection route to the first route selection device. If the second extension connection route coincides with the first extension connection route, an extension connection is established between the first mobile terminal and the second mobile terminal via the first extension connection route.

Abstract: A mobile communication method including: operating a radio base station in a closed state which limits a mobile station allowed to make an access by establishing an access right or in a semi-open state which does not limit an access by a mobile station; and switching the state of the radio base station between the closed state and the semi-open state when a predetermined condition is satisfied.

Abstract: A UE 300 is connectable to a first radio communication system and a second radio communication system which differs from the first radio communication system and uses multiple frequency bands. The UE 300 receives RRC CONNECTION REJECT which gives an instruction to switch from the first radio communication system to the second radio communication system and an indication on multiple switching target frequencies included in the frequency bands used by the second radio communication system, and, if the multiple switching target frequencies include an unavailable frequency at which the UE 300 is incapable of transmission/reception, searches for only a cell of a switching target frequency among the multiple switching target frequencies exclusive of the unavailable frequency.

Abstract: An RNC 200 includes a cell information acquisition unit 201 configured to acquire cell information of a first cell and a second cell, a threshold determination unit 203 configured to determine, based on the acquired cell information, a cell reselection threshold which causes the mobile station to reselect the second cell in place of the first cell and to camp on the second cell, and a camp on cell instruction unit 205 configured to broadcast, to the mobile station, system information in which the determined cell reselection threshold or a camp on frequency determined based on the cell reselection threshold is set.

Abstract: A communication device includes a receiving unit configured to receive an instruction signal, which instructs the keeping of records regarding specific broadcast information, from a transmission source of the specific broadcast information, a storing unit configured to retain the records regarding the specific broadcast information in the case where the receiving unit receives the specific broadcast information broadcast from the transmission source, and a transmission unit configured to transmit to the transmission source a notification signal indicating that the records regarding the specific broadcast information are retained, wherein in the case where the receiving unit receives a request signal sent from the transmission source in response to the notification signal, the transmission unit transmits to the transmission source a reporting signal including at least an identifier identifying the specific broadcast information.

Abstract: A handover method according to the present invention includes a step A of transmitting, by MME, “Reloc/HO Req” including “PS/CS HO Indication” to RNC/BSS via MSC, a step B of transmitting, by the MME, “Reloc/HO Req” including the “PS/CS HO Indication” to the RNC/BSS via SGSN, and a step C of transmitting, by the RNC/BSS, “PS to CS Resp” and “Forward Reloc Resp” to the MME after both the “Reloc/HO Req (for a CS bearer)” and the “Reloc/HO Req (for a PS bearer)” are received.

Abstract: To achieve a transition of a mobile station to any one of neighboring cells while suppressing the increase of processing load related to a neighboring cell information table even when a number of base stations are present in the neighborhood of the mobile station. A RNC 210 includes a NRT storage unit 211 configured to store information on the neighboring cells of a mobile station 301 in a NRT based on the transition of the mobile station 301 from a LTE system 10 to a 3G system 20, and a mobile station control unit 213 configured to return the mobile station 301 from the 3G system 20 to the LTE system 10 based on the information on the neighboring cells stored in the NRT. The NRT storage unit 211 stores a timing to erase the information on the neighboring cells of the mobile station 301 from the NRT.

Abstract: The UE 300 includes a message reception unit 303 configured to receive a command that RAB 500a, RAB 500b established between the UE 300 and the first radio communication system be relocated at the second radio communication system or a command to replace a configuration of the RAB 500a, 500b when the UE 300 executes a handover from the first radio communication system to the second radio communication system, and a radio access bearer establishment unit 305 configured to release an undesignated radio access bearer not designated in the relocation command or the replacement command received by the message reception unit 303, if the undesignated radio access bearer is established.

Abstract: A mobile communication system in which a home cell limits access from a first mobile station, and when the first mobile station communicating via a macro cell using the same frequency as the home cell enters a predetermined area near the home cell, the first mobile station is caused to perform handover to a different-frequency macro cell selected from among macro cells covering the predetermined area and using frequencies different from that used in the home cell.

Abstract: To provide a communication control system and a mobile station control method, in which as soon as a communication in a radio communication system to which a mobile station performed fallback is terminated, the mobile station is quickly returned to a connection with a base station in a radio communication system before the fallback. A RNC 210 includes an information element acquisition unit configured to acquire an information element used to allow the return to a base station before the fallback from an LTE system 10, and a mobile station control unit configured to execute the control to allow the mobile station 300 to return to the HeNB 110. The mobile station control unit executes the control based on the communication state of the mobile station 300 in the 3G system 20.

Abstract: A mobile communication method according to the present invention includes the steps of: transmitting an “Extended Service Request” from a mobile station UE in Idle mode to a mobility management node MME via a radio base station eNodeB; transmitting an “Initial UE Context Setup Request” from the mobile station UE to the radio base station eNodeB, the “Initial UE Context Setup Request containing priority call information; and preferentially allocating resources to the E-RAB for the mobile station UE by the radio base station eNodeB based on the priority call information contained in the received “Initial UE Context Setup Request.

Abstract: To provide a communication control system and a communication control method, in which call connection delay can be reduced even in a case where a resource capable of continuing an established communication bearer in a radio communication system in a transition destination cannot be captured when a mobile station transitions to another radio communication system. An eNB 110 includes a handover control unit 115 configured to determine whether a handover of a PS bearer to a 3G system 20 is performed based on the priority of the PS bearer to the CS bearer when a connection destination of a mobile station 300 being in connection with an LTE system 10 using the PS bearer is switched to the 3G system 20.

Abstract: The disclosed mobile communication method is a mobile communication method in a mobile communication system, wherein at least a part of a macro-cell (#A), with which first broadcast information is transmitted at a first frequency, and a femto cell (#a), in which second broadcast information is transmitted at a second frequency, overlap geographically. The method has step in which a wireless base station (#a) for a femto cell that manages the femto cell (#a) detects the first broadcast information, step in which the wireless base station (#a) for a femto cell transmits guiding broadcast information at a first frequency in response to detection of the first broadcast information, and step (C) in which a mobile station (UE #1) that is communicating in the macro-cell (#A) performs handover to the femto cell (#a) when the guiding broadcast information is detected.