摘要:
A mobile station is configured with a logged MBSFN measurement in which a reception status of an MBMS is measured and collected by a logged MDT. The mobile station transmits an availability indicator to a network at a predetermined timing except when the logged MBSFN measurement is still ongoing, the availability indicator indicating an availability of the logged MBSFN measurement.
摘要:
A mobile communication system includes a base station configured to transmit system information on at least one D2D available cell in which D2D communication is available; and a user terminal that exists in a cell of the base station, and configured to receive the system information from the base station. The system information includes frequency information that indicates a frequency to which the D2D available cell belongs.
摘要:
A radio base station (100) transmits a Capability Request message to a radio terminal (200), which is connected to the radio base station, to transmit terminal capability information that indicates positioning capability of the radio terminal, and receives a Capability Indication message transmitted from the radio terminal (200). The radio base station (100) determines, corresponding to the received Capability Indication message, whether positional information that indicates the geographical position of the radio terminal (200) can be acquired from the radio terminal (200).
摘要:
A user terminal according to the present invention is a user terminal in a mobile communication system supporting D2D communication being direct terminal-to-terminal communication. The user terminal includes: a storage configured to store a discovery signal list relating: to a plurality of conditions for controlling transmission and/or reception of a discovery signal used for discovery of another user terminal existing near the user terminal; and to a plurality of identifiers consisting of identifiers respectively associated with the plurality of conditions; a receiver configured to receive a specific identifier specified by a network apparatus storing the discovery signal list, wherein the specific identifier is specified from among the plurality of identifiers; and a controller configured to perform control to transmit and/or receive the discovery signal according to a specific condition associated with the specific identifier from among the plurality of conditions.
摘要:
A communication control method according to a first aspect includes: a step A of acquiring, by a user terminal that supports a cellular communication and a WLAN communication, access point location information on a geographical location of a WLAN access point; a step B of transmitting, from the user terminal to a cellular network, the access point location information; and a step C of acquiring, by a cellular base station included in the cellular network, the access point location information.
摘要:
A mobile communication method, which configures a DRX cycle having an On duration in which a downlink signal transmitted from a serving cell 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 measuring, at the radio terminal, reception quality of a reference signal transmitted from a cell even in the Off duration when the DRX cycle is configured.
摘要:
A communication control method in a mobile communication system, comprises: a step A of transmitting, from a first base station, a first synchronization signal at a first frequency band in the center of a particular carrier, the first synchronization signal being for use to establish synchronization; and a step B of transmitting, from the first base station, a second synchronization signal in a second frequency band different from the first frequency band within the particular carrier, the second synchronization signal being for use to establish synchronization.
摘要:
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 UE 10 and an eNB 110, the mobile communication method comprising: a step A of transmitting, from the UE 10 to the eNB 110, a timing adjustment request uplink signal through an uplink control channel, even when a radio resource of an uplink data channel has not been assigned in a case where the DRX cycle is configured.
摘要:
A radio terminal according to an embodiment includes a controller configured to control a random access procedure. The random access procedure includes first processing of transmitting a random access preamble to a base station, second processing of receiving a random access response from the base station, and third processing of performing uplink transmission to the base station based on the random access response. The controller is configured to notify, in the first processing or the third processing, the base station of an amount of uplink data in a transmission buffer of the radio terminal.