Abstract: In a communication control method according to one embodiment, a first radio terminal executes, control to establish a predetermined connection through a second radio terminal that is a relay terminal. The predetermined connection is used for transmitting control information related to the first radio terminal between the first radio terminal and a base station. The first radio terminal starts control to establish the predetermined connection, in response to receiving authorization information indicating that establishing the predetermined connection is possible.

Abstract: In a first user equipment, apparatus and method, a first user equipment performs sidelink communication with a second user equipment, receives a first message from the second user equipment, where the first message is periodically transmitted from the second user equipment based on a first timer, starts or restarts a second timer upon receiving the first message, where a value of the second timer is determined based on a value of the first timer, and transmits a second message to a network apparatus upon expiration of the second timer, where the second message indicates that the second user equipment is disconnected from the first user equipment.

Abstract: In a communication method, a user equipment receives system information broadcast from a current serving cell of the user equipment and indicating frequencies different from a frequency of the current serving cell, the user equipment receives a paging signal from the current serving cell that is different from the system information and includes a request message requesting the user equipment to perform frequency redistribution in which the user equipment selects a target frequency, and performs the frequency redistribution in response to receiving the paging signal including the request message. Performing the frequency redistribution comprises the user equipment measuring quality of the frequencies included in the system information received from the current serving cell in response to receiving the paging signal including the request message, and selecting the target frequency based on a result of the measuring. The user equipment reselects a serving cell on the selected target frequency.

Abstract: A communication control method according to one embodiment is used in a mobile communication system. The communication control method comprises a step A of predicting, by a UE, a radio condition within a second period after connection between the UE and a eNB is established, in a first period for which the connection is not established, and a step B of performing, by the UE, a random access procedure for establishing the connection. The step B includes a step of performing notification of information on the predicted radio condition from the UE to the eNB in the random access procedure. The information is used, by the eNB, for controlling communication with the UE.

Abstract: A metal reinforcement fitting for reinforcing a through hole penetrating through a wooden building component from one surface and the other surface thereof includes: a first plate member made of a metal plate, a cylindrical member made of a metal cylinder, and a second plate member made of a metal plate. The first plate member has a through hole adapted to receive a rod-like fastener therethrough, and is adapted to be disposed on the one surface of the wooden building component. The cylindrical member is adapted to receive the rod-like fastener therethrough and to be inserted and fitted in the through hole of the wooden building component so as to extend over an entire length thereof. The second plate member has a through hole adapted to receive the rod-like fastener therethrough, and is adapted to be disposed on the other surface of the wooden building component.

Abstract: A user equipment receives an MBMS service provided using SC-PTM transmission. The user equipment performs a cell reselection operation of selecting a cell to be used as a serving cell of the user equipment while the user equipment is in an RRC idle mode. In the cell reselection operation, the user equipment selects, as the serving cell, a cell having a highest ranking determined based on a radio quality and an offset from among a plurality of cells. In the cell reselection operation, when the user equipment is in an enhanced coverage, the user equipment uses an infinite offset as the offset to be applied to a cell where the MBMS service is provided by the SC-PTM transmission, in response to a predetermined condition for the SC-PTM transmission being satisfied, when the user equipment goes out of the enhanced coverage, stop using the infinite offset.

Abstract: A metal joint for joining, to a frame built by appropriately combining a horizontal structural member and a vertical structural member, a rectangular panel fitted into the frame includes a base member made of a rectangular metal plate, and cylindrical members which are each made of a metal cylinder, and are fixed onto opposite surfaces of the base member. The base member is adapted to be disposed between the frame and the panel. The cylindrical members are adapted to be fitted into circular holes formed in the frame and the panel.

Abstract: A radio terminal according to an embodiment comprises: a controller configured to execute processing of establishing connection with a network for relaying using a Device to Device (D2D) proximity service; a transmitter configured to transmit a discovery message for the relaying, after the connection is established; and a receiver configured to receive a request message from another radio terminal that has received the discovery message, wherein the request message includes an identifier of the another radio terminal. The controller executes control of transmitting the identifier of the another radio terminal, to a network apparatus included in an Evolved Packet Core (EPC), as an identifier of a remote node to which data is relayed by the relaying. The controller executes control of further transmitting the identifier of the another radio terminal to the network apparatus, based on non-reception of a predetermined message from the another radio terminal.

Abstract: A user terminal executes processes of receiving control information from a base station, the control information indicating that transmission of a gap request is allowed; transmitting a reception gap request to the base station, the reception gap request requesting reception gaps which are timings in which the user terminal halts a downlink reception to monitor device-to-device discovery signals directly transmitted from other user terminals; and receiving a gap configuration from the base station, the gap configuration indicating the reception gaps configured by the base station to the user terminal. The reception gap request includes a frequency identifier indicating a frequency for monitoring the device-to-device discovery signals; and correlated gap pattern. The gap pattern includes bit map information indicating subframes corresponding to the reception gaps; period information indicating a repeating period of the bit map information; and offset information indicating a start timing of the period.

Abstract: A base station according to an embodiment comprises: a controller configured to receive an identifier of a wireless LAN access point added in a wireless LAN termination apparatus from the wireless LAN termination apparatus.

Abstract: A radio terminal according to one embodiment transmits data of one bearer to two radio communication apparatuses. The radio terminal comprises a controller configured to transmit a buffer status report to only one of the two radio communication apparatuses, if a data amount accumulated in a predetermined buffer falls below a threshold value and only the one radio communication apparatus is designated as a transmission target of the buffer status report. The controller is configured to change the transmission target of the buffer status report from the one radio communication apparatus to the other radio communication apparatus, if the data amount falls below the threshold value and a failure in a radio link with the one radio communication apparatus is detected.

Abstract: A base station according to a present embodiment is a base station configured to manage a cell, and comprises: a controller configured to transmit, if a relay terminal configured to relay data by direct communication between a remote terminal and a network is not present in a vicinity of a radio terminal located within the cell, control information to the radio terminal. The control information is information for starting transmission of a discovery signal for discovering another radio terminal that can be the relay UE.

Abstract: A radio terminal according to an embodiment comprises: a controller configured to control traffic steering between an Evolved-Universal Terrestrial Radio Access Network (E-UTRAN) and a Wireless Local Area Network (WLAN). The controller is configured to control traffic steering from the E-UTRAN to the WLAN or from the WLAN to the E-UTRAN according to at least one of a first scheme and a second scheme. The radio terminal further comprises a receiver configured to receive, from the E-UTRAN, first assistance information to be used to determine whether the radio terminal executes the traffic steering in the first scheme. The first assistance information is broadcasted by the E-UTRAN. The receiver is configured to receive, from the E-UTRAN, WLAN configuration information including a list of identifiers of the WLAN and a timer value indicating a period over which the WLAN configuration information should be held.

Abstract: A communication method, a user equipment, and a base station operate in a manner in which the user equipment receives from the base station control information indicating a plurality of frequencies for performing sidelink communication and a resource pool associated with each of the plurality of frequencies, and the user equipment selects a first frequency among the plurality of frequencies.

Abstract: A mobile communication method is a mobile communication method for performing communication between a base station and a user terminal by using a narrow band having a predetermined bandwidth. The mobile communication method comprises: a step of performing, by the user terminal, first communication related to control information by using a first narrow band in an n-th subframe; and a step of performing, by the user terminal, second communication related to user data by using a second narrow band different from the first narrow band in an (n+1)-th subframe. A symbol time region at an end of the n-th subframe and/or a symbol time region at a head of the (n+1)-th subframe are non-used regions provided for the user terminal to switch from the first narrow band to the second narrow band.

Abstract: A base station includes a controller configured to perform a process of transmitting configuration information for a user terminal having a group communication function specified in 3rd Generation Partnership Project (3GPP). The configuration information includes specific subframe information indicating a specific subframe capable of constituting a physical downlink shared channel (PDSCH) for multicast.

Abstract: A base station according to one embodiment is configured to perform communication with a radio terminal and a wireless wide area network (WWAN) system. The base station comprises a controller configured to transmit first configuration information with which the radio terminal configures a measurement report in the radio terminal. The measurement report is a report of a measurement result about a signal transmitted by a wireless local area network (WLAN) system from an access point. The first configuration information includes a predetermined identifier associated with a group of access points to be measured by the radio terminal. The predetermined identifier is associated with an identifier of each of the access points in the group. The group is a group in which the radio terminal is capable of steering among access points without being dependent on a command from the base station.

Abstract: A communication method including transmitting, from a radio terminal connected to a cell to a base station managing the cell operated in a first frequency, a first message that a discovery signal is transmitted for public safety in a second frequency; receiving, by the base station, the first message; and transmitting, from the base station to the radio terminal, a second message including information on radio resources to be used in transmission of the discovery signal in the second frequency, based on the first message. The method further includes transmitting, from the base station to the radio terminal, first information and second information. The first information indicates a threshold value for determining whether or not the radio terminal transmits the first message. The radio terminal uses the second information to determine whether or not the radio terminal is allowed to transmit the first message.

Abstract: A communication device according to one embodiment comprise a transmitter configured to directly transmit a radio signal to another communication device. The transmitter is configured to transmit, when first location information indicating a geographical location of the communication device is acquired, the radio signal, based on a first radio resource associated with a location indicated by the first location information. The transmitter is configured to transmit, when the communication device cannot acquire the first location information, the radio signal, based on a second radio resource. The second radio resource is decided based on a method different from a method of deciding the first radio resource by using the first location information.

Abstract: A radio terminal according to one embodiment comprises a processor. The processor is configured to: forward a data unit from an RLC layer to a MAC layer prior to receiving an uplink grant from a base station; receive the uplink grant for determining a predetermined transport block size from the base station; generate a transport block by performing concatenation or segmentation on the data unit according to the predetermined transport block size in the MAC layer; and transmit the generated transport block to the base station via a PHY layer. The processor is configured to receive TBS information indicating a minimum guaranteed value of a transport block size from the base station. The predetermined transport block size is a value equal to or larger than the minimum guaranteed value.