公开(公告)号：US20200305104A1

公开(公告)日：2020-09-24

申请号：US16899360

申请日：2020-06-11

Applicant: KYOCERA Corporation

Inventor： Hiroyuki URABAYASHI

IPC: H04W56/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W8/24

Abstract: A user equipment, an apparatus for controlling user equipment, and a method receive measurement configuration information from a first cell, the measurement configuration information indicating a subcarrier spacing applied to a second cell, and perform measurement on the second cell based on the measurement configuration information.

公开(公告)号：US20200008198A1

公开(公告)日：2020-01-02

申请号：US16481018

申请日：2018-01-24

Applicant: KYOCERA Corporation

Inventor： Hiroyuki URABAYASHI ,  Masato FUJISHIRO ,  Chiharu YAMAZAKI

IPC: H04W72/04 ,  H04W4/70

Abstract: A base station performs radio communication with a radio terminal using at least one narrow frequency band where the number of resource blocks is limited to a predetermined resource block number. The base station comprises a transmitter configured to transmit, to the radio terminal, configuration information for frequency hopping where the radio communication is performed while switching the narrow frequency band; and a controller configured to allocate, to the radio terminal, a first frequency band of the frequency hopping and a frequency band of a hopping destination. The first frequency band and the frequency band of the hopping destination respectively include the narrow frequency band and fraction resource blocks. The fraction resource blocks are resource blocks, the number of which is smaller than the predetermined resource block number. The controller is configured to make the number of the fraction resource blocks included in the frequency band of the hopping destination equal to the number of the fraction resource blocks included in the first frequency band.

公开(公告)号：US20190075525A1

公开(公告)日：2019-03-07

申请号：US16184368

申请日：2018-11-08

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki URABAYASHI ,  Fangwei TONG ,  Atsuhisa INAKOSHI ,  Chiharu YAMAZAKI

IPC: H04W52/24 ,  H04W72/04

CPC classification number: H04W52/243 ,  H04W72/0473 ,  H04W88/02 ,  H04W88/08 ,  H04W92/20

Abstract: A radio terminal according to one embodiment comprises a controller configured to receive first control information for receiving, by the radio terminal, a special downlink control channel. The special downlink control channel carries control information to the radio terminal from a first cell with no connection for transmitting and receiving user data being established. The controller directly receives second control information for reducing an uplink interference in the first cell, on the special downlink control channel, from the first cell.

公开(公告)号：US20190059035A1

公开(公告)日：2019-02-21

申请号：US16168905

申请日：2018-10-24

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki URABAYASHI ,  Kugo MORITA ,  Fangwei TONG ,  Atsuhisa INAKOSHI ,  Hiroyuki ADACHI

IPC: H04W36/30 ,  H04W76/28 ,  H04B7/26 ,  B61L15/00 ,  H04W40/22 ,  H04W88/04

Abstract: A relay node according to one embodiment comprises a controller configured to establish a connection with a radio terminal and to establish a connection with a base station; a receiver configured to receive information of the radio terminal from the base station; and a transmitter configured to transmit the information to the radio terminal. The receiver receives delivery acknowledgement information from the radio terminal before the information is transmitted. The delivery acknowledgement information indicates that the radio terminal has received the information. The transmitter stops transmitting the information to the radio terminal in response to reception of the delivery acknowledgement information.

公开(公告)号：US20180270845A1

公开(公告)日：2018-09-20

申请号：US15988169

申请日：2018-05-24

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki URABAYASHI ,  Kugo MORITA

IPC: H04W72/12 ,  H04W74/06

CPC classification number: H04W72/121 ,  H04L1/18 ,  H04L1/1822 ,  H04L1/1854 ,  H04W28/04 ,  H04W56/0005 ,  H04W56/0045 ,  H04W72/1273 ,  H04W72/1289 ,  H04W74/006 ,  H04W74/06 ,  H04W74/0808 ,  H04W84/12

Abstract: A communication device according to embodiment comprises a transmitter configured to transmit first information to a plurality of other communication devices, via a communication scheme in which communication is performed without synchronization between devices; and a receiver configured to receive second information as a response to reception of the first information from the plurality of other communication devices via the communication scheme. The transmitter is configured to transmit, to each communication device of the plurality of other communication devices, transmission timing information for each communication device of the plurality of other communication devices to designate a transmission timing of the second information.

公开(公告)号：US20180054753A1

公开(公告)日：2018-02-22

申请号：US15786122

申请日：2017-10-17

Applicant: KYOCERA CORPORATION

Inventor： Masato FUJISHIRO ,  Chiharu YAMAZAKI ,  Hiroyuki URABAYASHI ,  Kugo MORITA ,  Noriyoshi FUKUTA

IPC: H04W28/02 ,  H04W16/14 ,  H04W16/06

CPC classification number: H04W28/0215 ,  H04W16/04 ,  H04W16/06 ,  H04W16/14 ,  H04W74/0833 ,  H04W84/10

Abstract: A radio communication system comprises: a first area entity operated in a first operation scheme in which use of a specific frequency band is permitted; and a second area entity operated in a second operation scheme in which use of the specific frequency band is permitted. A user terminal existing in an area of the first area entity notifies the first area entity of a frequency band change request for requesting a change of a frequency band used by the first area entity when a frequency of the specific frequency band used by the first area entity is congested due to use by the second area entity. The first area entity changes a frequency band used by the first area entity in response to the frequency band change request.

公开(公告)号：US20180014347A1

公开(公告)日：2018-01-11

申请号：US15693675

申请日：2017-09-01

Applicant: KYOCERA CORPORATION

Inventor： Yushi NAGASAKA ,  Masato FUJISHIRO ,  Kugo MORITA ,  Hiroyuki ADACHI ,  Fangwei TONG ,  Shingo KATAGIRI ,  Chiharu YAMAZAKI ,  Hiroyuki URABAYASHI ,  Naohisa MATSUMOTO ,  Katsuhiro MITSUI

IPC: H04W76/04 ,  H04W8/22 ,  H04W88/08

Abstract: A communication method according to an embodiment comprises: notifying, by a base station, a radio terminal of a discontinuous reception (DRX) cycle; notifying, by a Mobility Management Entity (MME), the radio terminal of an extended DRX cycle longer than the DRX cycle; determining, by the radio terminal, whether or not the base station supports an extend DRX; using, by the radio terminal, the extended DRX cycle to execute an extended DRX operation in an idle mode, in response to determining that the base station supports the extend DRX; and using, by the radio terminal, the DRX cycle to execute a DRX operation without using the extended DRX cycle, in response to determining that the base station does not support the extend DRX.

公开(公告)号：US20170325115A1

公开(公告)日：2017-11-09

申请号：US15660533

申请日：2017-07-26

Applicant: KYOCERA CORPORATION

Inventor： Naohisa MATSUMOTO ,  Kugo MORITA ,  Hiroyuki ADACHI ,  Hiroyuki URABAYASHI ,  Chiharu YAMAZAKI

IPC: H04W24/08 ,  H04W24/10 ,  H04W16/14

CPC classification number: H04W24/08 ,  H04W16/14 ,  H04W24/10

Abstract: A user terminal according to a first feature is used in a mobile communication system. The use terminal includes: a receiver configured to receive a measurement instruction to instruct measurement in an unlicensed band, from a base station; a controller configured to, in response to reception of the measurement instruction, search for a radio signal transmitted in a frequency channel included in the unlicensed band, and measure reception power of the radio signal detected by the search, even when a cell identifier of a measurement target cell is not designated in the measurement instruction; and a transmitter configured to transmit a measurement report including an identifier of a transmission source of the detected radio signal and a measurement result of the reception power, to the base station.

公开(公告)号：US20170289937A1

公开(公告)日：2017-10-05

申请号：US15511305

申请日：2015-09-16

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki URABAYASHI ,  Chiharu YAMAZAKI ,  Naohisa MATSUMOTO ,  Noriyoshi FUKUTA ,  Kugo MORITA ,  Masato FUJISHIRO

IPC: H04W56/00 ,  H04W16/14 ,  H04W74/08 ,  H04W48/16

CPC classification number: H04W56/001 ,  H04W16/14 ,  H04W48/16 ,  H04W56/00 ,  H04W56/0015 ,  H04W56/0025 ,  H04W72/04 ,  H04W74/0833 ,  H04W88/02 ,  H04W88/08

Abstract: A base station manages a first cell and a second cell and communicates with a user terminal by carrier aggregation which is applied to the first cell and the second cell, the first cell being allocated a licensed band requiring a license and a second cell being allocated an unlicensed band not requiring a license. The base station includes: a transmitter configured to transmit a synchronization signal used for synchronization between the second cell and the user terminal, by at least one carrier selected from the unlicensed band based on a result of carrier sensing in the second cell; and a controller configured to instruct the user terminal to perform a detection operation of the synchronization signal for all or part of the carrier through the first cell.

公开(公告)号：US20240422589A1

公开(公告)日：2024-12-19

申请号：US18823315

申请日：2024-09-03

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO ,  Hiroyuki URABAYASHI ,  Mitsutaka HATA

IPC: H04W24/02 ,  H04L5/00 ,  H04W60/04 ,  H04W76/19

Abstract: In an aspect, a communication control method is a communication control method in a wireless communication system. The communication control method includes a step of transmitting, by a first communication node included in a network, a predetermined message to a second communication node. The communication control method includes a step of transmitting, by the second communication node, tag information read from a wireless tag to the first communication node in response to receiving the predetermined message.