公开(公告)号：US20140293866A1

公开(公告)日：2014-10-02

申请号：US14355940

申请日：2012-11-07

Applicant: KYOCERA CORPORATION

Inventor： Henry Chang ,  Noriyoshi Fukuta

IPC: H04W4/06 ,  H04W72/00

CPC classification number: H04W4/06 ,  H04L12/18 ,  H04L12/189 ,  H04W48/20 ,  H04W52/0216 ,  H04W52/0229 ,  H04W72/005 ,  H04W76/40 ,  H04W84/045 ,  H04W88/02 ,  H04W92/045 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/164

Abstract: A mobile terminal is used in a mobile communication system including a general cell supporting a broadcast distribution of MBMS data and a specific cell not supporting a broadcast distribution of MBMS data. The mobile terminal has a controller that executes an autonomous search that searches for a specific cell to which the mobile terminal is allowed to connect. In an idle state, the controller halts the autonomous search when the user terminal receives the MBMS data from the general cell.

Abstract translation: 移动终端用于包括支持MBMS数据的广播分发的通用小区和不支持MBMS数据的广播分发的特定小区的移动通信系统。 移动终端具有执行搜索允许移动终端连接到的特定小区的自主搜索的控制器。 在空闲状态下，当用户终端从一般小区接收到MBMS数据时，控制器停止自主搜索。

公开(公告)号：US11470494B2

公开(公告)日：2022-10-11

申请号：US16991981

申请日：2020-08-12

Applicant: KYOCERA Corporation

Inventor： Noriyoshi Fukuta ,  Henry Chang

IPC: H04W24/10 ,  H04W16/18 ,  H04W24/08 ,  H04W88/06

Abstract: A user equipment according to one aspect is a user equipment of a cellular communication system, the user equipment comprising a communicator configured to perform a radio communication by WLAN and/or Bluetooth, a cellular receiver configured to receive a configuration message which is transmitted from a network of the cellular communication system and sets an MDT measurement in which the cellular communication system is set as a measurement target, a controller configured to perform a radio measurement on the cellular communication system based on the configuration message, and a cellular transmitter configured to transmit, to the network, MDT measurement information including a measurement result for the cellular communication system. The controller is configured to include the measurement result for the WLAN and/or the Bluetooth in the MDT measurement information when the measurement result for the WLAN and/or the Bluetooth is available.

公开(公告)号：US11178721B2

公开(公告)日：2021-11-16

申请号：US16813480

申请日：2020-03-09

Applicant: KYOCERA Corporation

Inventor： Noriyoshi Fukuta ,  Kugo Morita ,  Masato Fujishiro

IPC: H04W76/27 ,  H04W52/38 ,  H04W92/18 ,  H04W76/14 ,  H04W48/12 ,  H04W8/00 ,  H04W48/10 ,  H04W72/04 ,  H04W52/04 ,  H04W76/10 ,  H04W52/36 ,  H04W88/06 ,  H04W88/10

Abstract: A user equipment, method, and chipset receive system information block (SIB) broadcasted from a base station, and while the user equipment is in a radio resource control (RRC) idle mode in which no RRC connection is established between the use equipment and the base station, the SIB is used to control the D2D communication. Data is transmitted to other user equipment by the D2D communication based on the SIB while the user equipment is in the RRC idle mode. The SIB includes resource information indicating usable radio resources for the D2D communication and power information used for controlling transmission power in the D2D communication. The transmitting comprises determinations of radio resources used to transmit the data based on the resource information and transmission power used in transmitting the data based on the power information, and transmitting the data using the determined radio resources and the determined transmission power.

公开(公告)号：US10985807B2

公开(公告)日：2021-04-20

申请号：US15751655

申请日：2016-08-05

Applicant: KYOCERA CORPORATION

Inventor： Fangwei Tong ,  Chiharu Yamazaki ,  Noriyoshi Fukuta ,  Akinori Iwabuchi ,  Hironobu Kobayashi

IPC: H04B7/0417 ,  H04L5/00

Abstract: A base station according to an embodiment supports full-dimension MIMO (FD-MIMO). The base station includes: an antenna array having antenna elements arranged two-dimensionally in a horizontal direction and a vertical direction; and a controller configured to perform a process of transmitting a dedicated reference signal that is a reference signal used for measurement of channel characteristics and is individually generated for a radio terminal. The controller is configured to select a specific target radio terminal from among target radio terminals to be connected to the base station, and perform a process of transmitting the dedicated reference signal only to the specific target radio terminal.

公开(公告)号：US10805985B2

公开(公告)日：2020-10-13

申请号：US16184758

申请日：2018-11-08

Applicant: KYOCERA CORPORATION

Inventor： Noriyoshi Fukuta

IPC: H04W88/06 ,  H04W76/20 ,  H04W36/00 ,  H04W88/04 ,  H04W76/15 ,  H04W76/23 ,  H04W36/08 ,  H04W36/38 ,  H04W8/26 ,  H04W8/00 ,  H04W40/22

Abstract: A radio terminal according to one embodiment comprises: a controller configured to establish a direct first connection between the radio terminal and a base station; and a receiver configured to receive a first message from the base station. The first message is a message for restricting the radio terminal from transmitting uplink information to the base station via the first connection. The receiver receives the first message transmitted from the base station when a second connection for relay is established between a relay terminal connected to the base station and the radio terminal.

公开(公告)号：US10750380B2

公开(公告)日：2020-08-18

申请号：US16144879

申请日：2018-09-27

Applicant: KYOCERA CORPORATION

Inventor： Masato Fujishiro ,  Henry Chang ,  Noriyoshi Fukuta

IPC: H04W24/00 ,  H04W24/02 ,  H04W76/27 ,  H04W52/02 ,  H04W76/20 ,  H04W64/00

Abstract: A radio terminal according to an embodiment is used in a mobile communication system. The radio terminal includes a controller configured to transmit, to a base station, information notifying or requesting that the radio terminal transitions to an RRC idle state if the radio terminal is in a specific state. The specific state is a state in which signaling is reduced as compared with the RRC connected state and context information of the radio terminal is maintained in the network.

公开(公告)号：US10743229B2

公开(公告)日：2020-08-11

申请号：US16279362

申请日：2019-02-19

Applicant: KYOCERA Corporation

Inventor： Henry Chang ,  Yushi Nagasaka ,  Kugo Morita ,  Fangwei Tong ,  Masato Fujishiro ,  Chiharu Yamazaki ,  Hiroyuki Adachi ,  Noriyoshi Fukuta

IPC: H04W36/22 ,  H04W48/18 ,  H04W48/06

Abstract: A base station and method thereof includes transmitting from the base station to a user equipment, parameters for an offload from the cellular RAN to a wireless local area network (LAN). The parameters are used by the user equipment to perform an access network selection between the cellular RAN and the wireless LAN, and include a first threshold for comparison with a cellular signal strength of the cellular RAN, a second threshold for comparison with a wireless LAN signal strength of the wireless LAN, and a third threshold for comparison with a load of the wireless LAN. When performing access network selection, the parameters may cause the user equipment to perform the offload, in response to the cellular signal strength being lower than the first threshold, the wireless LAN signal strength being higher than the second threshold, and the load of the wireless LAN being lower than the third threshold.

公开(公告)号：US10667161B2

公开(公告)日：2020-05-26

申请号：US15989620

申请日：2018-05-25

Applicant: KYOCERA CORPORATION

Inventor： Henry Chang ,  Noriyoshi Fukuta

IPC: H04W24/10 ,  H04W16/18 ,  H04W64/00 ,  H04W24/04

Abstract: A communication control method used in a mobile communication system supporting immediate MDT (Minimization of Drive Test) includes a user terminal in a radio resource control (RRC) connected state in a cell of the base station receiving an instruction from a base station, acquiring, in the RRC connected state, location information indicating a location of the user terminal based on the instruction from the base station, and measuring an uplink packet delay of uplink communication with the base station. The radio access bearers of the user terminal are associated with Quality of Service (QoS) characteristics to perform QoS control. The user terminal in the RRC connected state compares the measured uplink packet delay with a packet delay threshold value and determines whether to transmit a report to the base station based on result of the comparison. The report indicates the measured uplink packet delay.

公开(公告)号：US10348425B2

公开(公告)日：2019-07-09

申请号：US16041185

申请日：2018-07-20

Applicant: KYOCERA CORPORATION

Inventor： Noriyoshi Fukuta ,  Henry Chang

IPC: H04W24/10 ,  H04B17/318 ,  H04W16/14 ,  H04W16/18 ,  H04L1/00 ,  H04W72/08 ,  H04B17/26 ,  H04W76/27 ,  H04W24/08

Abstract: A radio terminal according to one embodiment supports MDT. The radio terminal comprises: a receiver configured to receive configuration information from a network, the configuration information setting an RSSI measurement in an unlicensed frequency band and an acquisition of location information of the radio terminal; a controller configured to perform the RSSI measurement and the acquisition of the location information, based on the configuration information; and a transmitter configured to transmit an RSSI measurement result together with the location information, to the network.

公开(公告)号：US10326548B2

公开(公告)日：2019-06-18

申请号：US15811857

申请日：2017-11-14

Applicant: KYOCERA CORPORATION

Inventor： Masato Fujishiro ,  Chiharu Yamazaki ,  Hiroyuki Urabayashi ,  Noriyoshi Fukuta ,  Naohisa Matsumoto

IPC: H04L1/00 ,  H04W16/14 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12

Abstract: A base station according to an embodiment is a base station configured to perform transmission to a user terminal by use of an unlicensed band. The base station comprises: a controller configured to start the transmission from a boundary of a subframe, but also to start the data transmission from a second-half slot out of a first-half slot and the second-half slot which configure a subframe. The controller is configured to transmit downlink control information in the second-half slot to start the transmission from the second-half slot. The controller is configured to change a modulation scheme to be applied to the transmission, depending on a start timing of the transmission, while fixing a transport block size applied to the subframe. The downlink control information is a PDCCH or an EPDCCH.