Abstract: A base station apparatus includes a unit configured to determine a discontinuous reception pattern for a user apparatus that is classified according to a channel state of a radio link; and a unit configured to report the discontinuous reception pattern to the user apparatus. The discontinuous reception pattern specifies at least a cycle of discontinuous reception.

Abstract: A method for reporting multi-address information comprises a step wherein each of mobile stations (UE) obtains the positional information relating to the mobile stations (UE) and manages information relating to the obtained positional information, a step for reporting multi-address information provided with an electronic signature to each of the mobile stations (UE), a step wherein each of the mobile stations (UE) verifies the multi-address information by use of the electronic signature provided to the received multi-address information, a step wherein each of the mobile stations (UE), when the verifying is successful, compares positional information contained in the multi-address information with the positional information being managed, and a step wherein each of the mobile stations (UE) performs processing in response to the multi-address information on the basis of the result of comparing.

Abstract: A base station includes a congestion state determination unit that determines whether the base station is in a congestion state; a barring target setting unit that sequentially sets targets of barring among a plurality of the targets of the barring when a determination is made that it is the congestion state; a barring time interval setting unit that sets a time interval of the barring based on the congestion state when the determination is made that it is the congestion state; and a transmitter that transmits information representing the targets of the barring and information representing the time interval of the barring to the user equipment.

Abstract: A mobile communication method according to the present invention includes: transmitting, from a mobile station (100) to an access node (200) in a first radio access technology, a connection request signal including a desired call type for communication and a radio access capability of the mobile station (100); determining, at the access node (200) in the first radio access technology, whether or not to perform handover to a second radio access technology on the basis of the desired call type for communication and the radio access capability of the mobile station included in the connection request signal; and transmitting, from the mobile station (100) to an access node in the second radio access technology, a connection request signal, when it is determined that the handover to the second radio access technology is to be performed.

Abstract: In a mobile communication method by which a mobile station (UE) transmits a control signal to a radio base station (eNB) in an uplink by using an uplink dedicated resource, different methods for determining whether or not a synchronization state is established in the uplink, are used depending on whether or not the uplink dedicated resource is set up.

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: An access gateway device is disclosed that is used in a mobile communication system and that is capable of storing an identifier of a tracking area in which a mobile station in communication is located. The access gateway device includes a table unit storing a table having a corresponding relationships between a tracking area and a base station managing a cell included in the tracking area; a tracking area identifier comparison unit referring to the table at a predetermined timing, detecting the identifier of the tracking area in which the mobile station is located, and comparing the detected identifier of the tracking area with the stored identifier; and a tracking area identifier notification unit notifying the mobile station of the detected identifier of the tracking area when the detected identifier of the tracking area is different from the stored identifier based on a result of the comparison.

Abstract: A mobile communication method according to the present invention includes the steps: transmitting, from an exchange (MME) to a first radio base station (eNB), a location information reporting instruction which provides an instruction to report location information on a mobile station (UE); reporting, the first radio base station (eNB) to the exchange (MME), the location information on the mobile station (UE), in accordance with the location information reporting instruction; transmitting, the location information reporting instruction to a second radio base station (eNB), in a handover procedure of the mobile station (UE) from the first radio base station (eNB) to the second radio base station (eNB); and reporting, from the second radio base station (eNB) to the exchange (MME), the location information on the mobile station (UE), in accordance with the location information reporting instruction.

Abstract: A user apparatus in a mobile communication system includes: a unit configured to receive a downlink control signal using a frequency of a residing cell; and a unit configured to perform cell search using a frequency different from the frequency of the residing cell during an interval between reception timings of the downlink control signal in response to an occurrence of a predetermined event for different frequency measurement in the user apparatus or a base station apparatus. When the reception timing interval of the downlink control signal is not longer than the threshold reported from the base station apparatus, and when the predetermined event for different frequency measurement occurs in the user apparatus or the base station apparatus, different frequency measurement is performed in a cycle, different from the reception timing interval, reported from the base station apparatus.

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: A mobile station performing a voice communication by using a radio resource, including a determination unit configured to determine whether an inputted packet is in a talk-spurt state or in a silent state; a message generating unit configured to generate a resource release request, when the determination unit determines that the inputted packet is in the silent state; and a transmitting unit configured to transmit the resource release request to a radio base station.

Abstract: A mobile communication method according to the present invention includes the steps of: when a gateway apparatus (S-GW) is switched from a first state where downlink data is transmitted to a first radio access apparatus to a second state where the downlink data is transmitted to a second radio access apparatus, transferring, from the first radio access apparatus to the second radio access apparatus, the downlink data which is received from the gateway apparatus and to which specific information is added; and transmitting, from the second radio access apparatus to a mobile station (UE), transfer downlink data which is transferred from the first radio access apparatus and to which the specific information is added, before new downlink data transmitted from the gateway apparatus (S-GW).

Abstract: In a mobile communication system according to the present invention, a radio base station (eNB) is configured to transmit broadcast information including a parameter to which a frequency bandwidth used in the mobile communication system is set; a mobile station (UE#1) is configured to determine, when a predetermined value is set to the parameter included in the received broadcast information, that a first frequency bandwidth is the frequency bandwidth used in the mobile communication system; and a mobile station (UE#2) is configured to determine, when the predetermined value is set to the parameter included in the received broadcast information, that a second frequency bandwidth different from the first frequency bandwidth is the frequency bandwidth used in the mobile communication system.

Abstract: A mobile communication method according to the present invention includes a step A of acquiring, by a mobile station UE in a standby state, radio quality in a cell designated by “MDT Configuration” in a period defined by a “Logged MDT measurement period”, and generating and storing “LogMDTreport”, a step B of, when a standby cell is changed, acquiring, by the mobile station UE, radio quality in the changed standby cell, and generating and storing “LogMDTCellReselect”, and a step C of transmitting, by the mobile station UE, the “LogMDTreport” and the “LogMDTCellReselect” to a radio base station eNB after the mobile station UE is changed to an active state.

Abstract: A radio base station according to the present invention comprising: a mobile communication system, a relay node and a first radio base station are connected via a radio bearer, the first radio base station and a second radio base station are connected, a mobile station is configured to perform a handover process between a state in which a radio bearer is set with the relay node so as to communicate via the relay node and the first radio base station, and a state in which a radio bearer is set with the second radio base station so as to communicate via the second radio base station, and the handover process is configured such that a radio bearer is set between the relay node and the second radio base station, and the control signals involved in the handover process are sent and received via the radio bearer that has been set between the relay node and the second radio base station.

Abstract: The present invention allows eNB information to be easily acquired from an eNB (20), which has been newly installed or whose setting contents have been changed. A mobile communication method of the present invention is a mobile communication method for an E-SMLC (40) provided with a storage section that stores eNB information indicating setting contents of the eNB information to perform positioning processing for a user terminal located in a cell formed by the eNB (20) based on the eNB information stored in the storage section, the method including a step of the E-SMLC (40) acquiring eNB information sent from an eNB (20), which has been newly installed or whose setting contents have been changed, and a step of the E-SMLC (40) updating the radio base station information stored in the storage section so as to reflect the acquired eNB information.

Abstract: To eliminate the problems when a handover by a mobile station UE over a radio base station eNodeB is performed during a positioning process of the mobile station UE. A mobile management node MME according to the present invention is configured to transmit a transfer signal “S1-AP Downlink NAS Transport” including an LPP signal received from a positioning calculation node E-SMLC and the identification information of the E-SMLC to a radio base station eNodeB, and when a transmission failure reason included in a transmission failure notification signal “S1-AP NON DELIVERY INDICATION” received from the radio base station eNodeB indicates a positioning failure, the mobile management node MME transmits the transmission failure reason and the LPP signal included in the transmission failure notification signal “S1-AP NON DELIVERY INDICATION” to the positioning calculation node E-SMLC identified by the identification information of the E-SMLC included in the transmission failure notification signal.

Abstract: A synchronization control method in a communication system including a mobile station and a base station includes generating a synchronization request at the base station when data addressed to the mobile station arrives, receiving the synchronization request from the base station at the mobile station, transmitting feedback information at the mobile station as a response to the synchronization request, receiving the feedback information at the base station, generating timing advance information at the base station based on a reception timing of the feedback information, transmitting the timing advance information from the base station to the mobile station, and adjusting a transmission timing of uplink data at the mobile station, based on the timing advance information.

Abstract: A paging signal transmitting method includes a step of allowing each of mobile stations (UE) to receive security data from a network node (1) via a channel specified by a paging signal, a step of allowing each mobile station (UE) to calculate a third set of security information by using an open first set of security information and a second set of security information managed by each mobile station, a step of allowing each mobile station (UE) to compare the third set of security information with a fourth set of security information included in the received security data to verify the validity of the paging signal, and a step of allowing each mobile station (UE) to output a signal corresponding to the paging signal when the validity of the paging signal is verified.

Abstract: A mobile communication method according to the present invention includes: the steps of: acquiring, at a mobile station UE connected in a cell #1 controlled by an E-UTRAN-system radio base station eNB, information on a cell #2 controlled by a UTRAN, radio base station NodeB in response to an instruction from the radio base station eNB; reporting, from the mobile station UE to the radio base station eNB, the acquired information on the cell #2; and notifying, from the radio base station eNB to a UTRAN-system radio network controller RNC which provides service to the cell #2, information on the cell #1.