Abstract: A communication control method is a method for performing offload to transfer a traffic load of a cellular base station to an access point. The communication control method comprises a step of maintaining without releasing the first connection, by a user terminal that have established a first connection with the cellular base station, even when the offload is started after establishing a second connection with the access point; and a determining step of determining, by the user terminal, whether the offload is continued or canceled after the offload is started.

Abstract: A communication control method applied to a mobile communication system, the mobile communication system including a home base station that forms a specific cell, and a mobility management device that performs verification of a user terminal for access permission to the specific cell in a handover procedure of the user terminal to the specific cell, comprises a step A of updating, by the user terminal, a list of a specific cell accessible by the user terminal; and a step B of omitting the verification of the user terminal by the mobility management device in the handover procedure when an elapsed time period after the update of the list is within a predetermined time period.

Abstract: A base station according to a first aspect is configured to transmit a radio signal to a user terminal in an own cell by using a plurality of transmission antennas. The base station comprises: a controller configured to notify the user terminal of a multi-antenna transmission mode to be applied to a transmission of the radio signal; and a transmitter configured to transmit the radio signal by using the plurality of transmission antennas by the multi-antenna transmission mode notified to the user terminal. The controller reduces a number of transmission antennas to be used for the transmission of the radio signal so as to reduce power consumption of the base station. The controller maintains the multi-antenna transmission mode notified to the user terminal without changing the multi-antenna transmission mode, even when reducing the number of transmission antennas to be used for the transmission of the radio signal.

Abstract: A base station according to a first aspect controls a cell. The base station comprises: a transmitter configured to transmit a radio signal; a controller configured to perform discontinuous transmission in which the transmitter is discontinuously activated; and a receiver configured to receive a request for communication from a user terminal in the cell. The controller temporarily changes an activation pattern of the transmitter in response to the reception of the request for communication when performing the discontinuous transmission, and notifies the user terminal of pattern information indicating a changed activation pattern.

Abstract: A base station for managing a cell includes a controller configured to perform an on/off operation to turn a downlink transmission of the cell on and off. The controller performs a process of transmitting a periodic radio signal including a cell-specific reference signal.

Abstract: A management server for a working machine, including: a reception unit that receives a sensor output from a working machine; a regular report creation unit that creates, for each predetermined period of time, a regular report indicating an operation state of the working machine within the predetermined period of time based on the sensor output; an emergency report creation unit that creates at least one emergency report upon detecting abnormality data representing abnormality of the working machine based on the sensor output; an important report creation unit that creates an important report upon detecting predictive data indicating a sign of the abnormality based on the sensor output; and a delivery unit that delivers the regular report, the at least one emergency report, and the important report, respectively, to a regular report delivery target, an emergency report delivery target, and an important report delivery target.

Abstract: A home base station (HeNB) that supports LIPA (Local Internet Protocol Access) defined in the 3GPP (3rd Generation Partnership Project) standards: transmits (step S103) information indicating that a user terminal has an LIPA connection in a handover request, to a target base station, by including the information in the handover request, when a handover procedure from the home base station to the target base station is started for the user terminal having the LIPA connection; and continues (steps S106, S107) the handover procedure without releasing the LIPA connection when the target base station permits the handover request.

Abstract: A mobile communication system supports cellular communication in which a data path passes through a core network and D2D communication that is direct device-to-device communication in which the data path does not pass through the core network. The system comprises a communication apparatus that assigns a radio resource to a D2D terminal that performs the D2D communication, wherein the communication apparatus performs assignment determination as to whether a dedicated radio resource not shared with the cellular communication is assigned to the D2D terminal or a shared radio resource shared with the cellular communication is assigned to the D2D terminal.

Abstract: A communication control method is a method for performing an offload from a cellular RAN to a wireless LAN. The communication control method includes the steps of: transmitting a list which contains identifiers of wireless LAN access points included in the wireless LAN, by a cellular base station included in the cellular RAN; receiving the list, by a user terminal which has a cellular communication unit and a wireless LAN communication unit; and performing an operation related to the offload after detecting that the user terminal approaches a wireless LAN access point on the basis of the list, by the user terminal which exists in a cell of the cellular base station.

Abstract: After a radio base station eNB10-2 receives a Handover Request message that is transmitted by a radio base station eNB10-1, for a radio terminal UE30-1 connected to the radio base station eNB10-1 to perform handover to the radio base station eNB10-2, the radio base station eNB10-2 transmits a response (Handover Request Ack message or Handover Request Nack message) to the Handover Request message to the radio base station eNB10-1. The Handover Request message includes information indicating a fulfillment level of throughput obtained when the radio terminal UE30-1 executes an application, relative to throughput required for the radio terminal UE30-1 to execute the application. The radio base station eNB10-2 controls the response to the Handover Request message, in accordance with the information indicating the fulfillment level included in the Handover Request message.

Abstract: A mobile communication method, which configures a DRX cycle having an On duration in which a downlink signal transmitted from a serving base station is to be monitored and an Off duration other than the On duration in an RRC connected state where an RRC connection is established between a radio terminal and a radio base station, the mobile communication method comprising: a step A of transmitting, from the radio base station to the radio terminal, a paging signal for notifying the radio terminal of an incoming call to the radio terminal at a predetermined timing in the Off duration when the DRX cycle is configured; and a step B of monitoring, at the radio terminal, the paging signal at a predetermined timing in the Off duration when the DRX cycle is configured.

Abstract: The mobile communication system performs communication by using a plurality of subframes between a radio terminal and a radio base station. The radio terminal comprises: a reception unit that receives offset information indicating an interval between a first subframe and a second subframe that is later than the first subframe on a time axis out of the plurality of subframes; and a control unit that applies assignment information included in the first subframe to the second subframe, not to the first subframe.

Abstract: A base station according to a first feature uses a plurality of carriers for radio communications. The base station includes: a receiver that receives neighbor base station information on user terminals connected to a neighbor base station, wherein the neighbor base station information is transmitted from the neighbor base station; and a controller that changes a carrier configuration of at least one carrier among the plurality of carriers based on the neighbor base station information.

Abstract: An industrial vehicle management system includes: a receiving unit that acquires operational information specifying a position and an operational state of each of a plurality of industrial vehicles; a symbol combining unit that, based on the operational information received by the receiving unit, superimposes and combines upon a map symbols showing the position of each of the industrial vehicles; a display control unit that displays upon a display device a map image that has been superimposed and combined by the symbol combining unit; and a symbol processing unit that changes display formats of the symbols according to the operational state.

Abstract: According to an embodiment, a shroud support apparatus is arranged along the outer periphery of a shroud in a reactor pressure vessel. The shroud support apparatus has: support rods arranged to stand in vertical direction in an annular section formed between an inner surface of the reactor pressure vessel and an outer surface of the shroud, bound to a baffle plate at lower binding sections, and extending upward; upper restraints arranged so as to be bound to upper binding sections of the support rods in order to restrain top end of the shroud; and a load reducing member attached to each support rod so as to reduce the load applied to each support rod when an earthquake takes place.

Abstract: A work machine management device includes: a receiving unit that receives, from a work machine, sensor data indicating states of various sections of the work machine, and alarm data indicating that the work machine has determined that an abnormality has occurred in the work machine; and an operating level classifying unit that, based on the sensor data received by the receiving unit, classifies an operating state of the work machine as being any one of a plurality of predetermined operating levels.

Abstract: A communication control method applied to a mobile communication system, the mobile communication system including a home base station that forms a specific cell, and a mobility management device that performs verification of a user terminal for access permission to the specific cell in a handover procedure of the user terminal to the specific cell, comprises a step A of updating, by the user terminal, a list of a specific cell accessible by the user terminal; and a step B of omitting the verification of the user terminal by the mobility management device in the handover procedure when an elapsed time period after the update of the list is within a predetermined time period.

Abstract: The present invention includes a camera which takes an image of a camera or an inspection target; a device which estimates the movement of the inspection target; a device which generates a high resolution image having a higher resolution than the pixel resolution of a video image taken by the camera from the video image taken by the camera; a device which evaluates the quality of the high resolution image generated by the generation device; and a device which presents an inspector who visually inspects the inspection target with the high resolution image together with the quality evaluation result of the high resolution image. The present invention can improve the reliability of inspection by use of the high resolution image as well as can reduce the inspection time, and further can guarantee the reliability of the inspection using a high resolution image.

Abstract: A communication control method applied to a mobile communication system, the mobile communication system including a home base station that forms a specific cell, a base station that determines whether to perform handover of a user terminal to the specific cell and a mobility management device that performs verification of the user terminal for access permission to the specific cell, the communication control method comprises a request step of requesting the mobility management device to perform the verification of the user terminal before the base station determines to perform the handover to the specific cell.

Abstract: A communication control method applied to a mobile communication system, the mobile communication system including a home base station that forms a specific cell and a mobility management device that performs verification of a user terminal for access permission to the specific cell in a handover procedure of the user terminal to the specific cell, comprises a step A of transmitting, by the mobility management device, verification failure information indicating failure of the verification to the home base station when the verification is failed after the user terminal establishes a connection to the specific cell in the handover procedure and a step B of starting, by the home base station, a re-handover procedure of the user terminal to another cell from the specific cell while maintaining the connection in response to reception of the verification failure information from the mobility management device.