Kyocera Corporation

Takahiro Saiwai

Kugo Morita

Masato Fujishiro

Hiroyuki Adachi

Noriyoshi Fukuta

Chiharu Yamazaki

Naohisa Matsumoto

Atsuhisa Inakoshi

Henry S Chang

Yushi Nagasaka

Fangwei Tong

Nobuki Hiramatsu

Katsuhiro Mitsui

Sunao Hashimoto

Takanori Ikuta

Jun Kitakado

Katsuro Nakamata

Yasuhiko Fukuoka

Shinji Isoyama

Takahisa Yamamoto

Djuniadi Arifin Sagala

Takuya Kuribayashi

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.

Base station and radio terminal

A radio terminal according to one embodiment comprises a receiver configured to receive from a moving cell, identification information identifying the moving cell. The moving cell is managed by a movable communication device and moves along movement of the communication device. The receiver receives the identification information in a sidelink that is a direct radio link in a Proximity service.

Radio terminal, communication device, and base station

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.

Communication device and base station

A radio terminal according to an embodiment is configured to perform direct communication with another radio terminal. The radio terminal comprises a controller configured to receive first data addressed to said another radio terminal from a base station. When the controller receives the first data from the base station, the controller is configured to also receive information indicating a first radio resource used for transferring the first data to said another radio terminal by the direct communication.

Radio terminal and base station for controlling direct communication between radio terminals

An information processing apparatus includes a communication interface and a controller. The communication interface receives, from a sensor container, information indicating an orientation of the sensor container. The controller, based on the information indicating the orientation of the sensor container, calculates a calculated value indicating a remaining amount of contents of the sensor container. The controller determines an estimated value of the remaining amount on the basis of the calculated value. The communication interface transmits the estimated value indicating the remaining amount to an external device. When the calculated value indicating the remaining amount decreases by a first predetermined value or more within a predetermined time period, the controller does not perform the determination of the estimated value on the basis of the calculated value.

Information processing apparatus, information presentation apparatus, information presentation system, and recording medium

A radio terminal according to one embodiment comprises a controller configured to be capable of relaying traffic between another radio terminal and a network by a proximity service. The controller performs a control for transmitting first information and second information, in a sidelink. The first information is used for identifying a location of a radio resource in which the second information is arranged. The second information is used to identify a location of a radio resource for requesting the relay by the proximity

Radio terminal

A base station allocates radio resources used for device-to-device D2D communication based on location information indicating a geographical location of a user terminal located in a cell of a base station. The base station notifies the allocated radio resources to the user terminal by a unicast manner, and the user terminal uses the allocated radio resources to transmit a signal for the D2D communication.

Method, base station, and user terminal for using location information of user terminal

A communication control method according to the present invention comprises: notifying, by the base station, the at least one or more communication devices of reference signal configuration information designating a parameter of the uplink reference signal; transmitting, by the user terminal, the uplink reference signal to the base station; and receiving, on the basis of the reference signal configuration information, by the at least one or more communication devices, the uplink reference signal transmitted from the user terminal; and measuring, on the basis of the received uplink reference signal, by the at least one or more communication devices, a channel state between the at least one or more communication devices and the user terminal.

Communication control method, base station, and user terminal, for performing D2D communication

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.

A user terminal according to first to third embodiments is used in a mobile communication system defined to observe a use state of an unlicensed band channel within an observation period before transmitting an uplink signal within an uplink transmission period in the channel. The user terminal includes a controller configured to perform transmission restriction to restrict transmission of the uplink signal during a last fixed section or a first fixed section of the uplink transmission period when transmitting the uplink signal within the uplink transmission period in the channel.

User terminal, base station, and communication apparatus

A communication method according to an embodiment, comprising: transmitting, from a base station to a radio terminal, a list indicating association between an identification of a logical channel group and a priority; generating, by the radio terminal, a buffer status report for direct communication; and transmitting, from the radio terminal to the base station, the buffer status report. The buffer status report includes an index of an destination identifier, an identifier of the logical channel group, and a buffer amount associated with the identifier of the logical channel group. In the generating the buffer status report, the radio terminal generates the buffer status report based on the list.

When a UE-(a reception-side UE) that performs D2D communication by using UL radio resource switches communication modes between cellular communication and the D2D communication, if DL subframe in which data reception of the cellular communication should be performed and the UL subframe in which data reception of the D2D communication should be performed at least partially overlap on a time axis, then the UE-performs data reception in one subframe, out of the overlapping two subframes.

Mobile communication system and user terminal

eNBcontrols wireless connections established by UE-with other communication apparatuses. The eNBperforms control such that number of the wireless connections established by the UE-is equal to or less than a connection allowance number indicating an upper limit number of the wireless connections allowed to the UE-

Network apparatus and user terminal

An MBMS control method comprises the steps of: transmitting, by a eNBincluded in the network, an MBMS counting request for counting UEthat either receive or have an interest in receiving the MBMS service, by using a predetermined signal that can be received by a user terminal in an RRC idle state; receiving, by an MBMS-compliant UEthat supports MBMS reception, the MBMS counting request transmitted by using the predetermined signal, in the RRC idle state; and performing, by the MBMS-compliant UE, a predetermined operation for transmitting an MBMS counting response, on the basis of the received MBMS counting request.

MBMS control method, user terminal, and base station

UE () supports WLAN communication and WWAN communication. The WWAN communication includes WWAN direct communication which is inter-terminal direct communication in conformity to a WWAN communication standard. The UE () applies the WLAN communication to a user plane while applying the WWAN direct communication to a control plane. The UE () transmits and receives a control signal through the WWAN direct communication.

Growing community of inventors

Kawasaki, Japan

Takahiro Saiwai