公开(公告)号：US20190223156A1

公开(公告)日：2019-07-18

申请号：US16364222

申请日：2019-03-26

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO ,  Hiroyuki URABAYASHI ,  Chiharu YAMAZAKI ,  Henry CHANG

IPC: H04W72/00 ,  H04W4/06 ,  H04W76/15

CPC classification number: H04W72/005 ,  H04W4/06 ,  H04W72/04 ,  H04W76/15

Abstract: A first radio terminal transmits and receives a radio signal by using a limited frequency band limited to a bandwidth of a predetermined number of resource blocks. A second radio terminal transmits and receives a radio signal by using a frequency band wider than the limited frequency band. A base station transmits configuration information of SC-MTCH by SC-MCCH. The base station sets a first period to the first radio terminal and sets a second period shorter than the first period to the second radio terminal as an SC-MCCH change period in which the configuration information of the SC-MTCH can be changed. The base station receives an MBMS interest indication from the first radio terminal, the first radio terminal being in a connected mode, and determines whether or not to shift the first radio terminal to an idle mode based on the MBMS interest indication.

公开(公告)号：US20190191279A1

公开(公告)日：2019-06-20

申请号：US16328594

申请日：2017-08-23

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO ,  Henry CHANG ,  Hiroyuki URABAYASHI

IPC: H04W4/06 ,  H04W72/00 ,  H04W72/04 ,  H04W8/26

CPC classification number: H04W4/06 ,  H04W8/26 ,  H04W72/005 ,  H04W72/0446 ,  H04W72/12

Abstract: A radio terminal includes a receiver configured to receive a counting request, the counting request requesting transmission of a counting response from a plurality of radio terminals that are receiving a specific MBMS service or interested in the reception of the specific MBMS service, and a common resource setting from a network, the common resource setting indicating a common resource pool to be commonly used by the plurality of radio terminals for the transmission of the counting response; a controller configured to determine whether or not the radio terminal is receiving the specific MBMS service or interested in the reception thereof in response to receiving the counting request; and a transmitter configured to transmit the counting response to the network by using a radio resource included in the common resource pool in response to the determination that the radio terminal is receiving the specific MBMS service or interested in the reception thereof.

公开(公告)号：US20190182715A1

公开(公告)日：2019-06-13

申请号：US16268705

申请日：2019-02-06

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki URABAYASHI ,  Chiharu YAMAZAKI

IPC: H04W28/20 ,  H04L5/00 ,  H04W76/27 ,  H04W72/04

Abstract: A mobile communication method according to an embodiment includes a step in which a base station configured to perform communication by using a narrow band which is a second bandwidth narrower than a first bandwidth compatible with a first user terminal in one unit time transmits information for allocating a second user terminal an extended band having a third bandwidth wider than the second bandwidth and narrower than the first bandwidth in the one unit time.

公开(公告)号：US20190110216A1

公开(公告)日：2019-04-11

申请号：US16093864

申请日：2017-04-24

Applicant: KYOCERA CORPORATION

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

IPC: H04W24/08 ,  H04L5/00

Abstract: A base station (200) according to an embodiment performs radio communication with a radio terminal (100). The base station transmits a reference signal to the radio terminal with a specific polarized wave, receives, from the radio terminal, polarized wave adjustment information generated by using the reference signal, adjusts a polarized wave based on the specific polarized wave by using the polarized wave adjustment information, and transmits an information signal to the radio terminal with the adjusted polarized wave.

公开(公告)号：US20190081820A1

公开(公告)日：2019-03-14

申请号：US16189598

申请日：2018-11-13

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki URABAYASHI

IPC: H04L25/02 ,  H04L5/00 ,  H04W74/08 ,  H04W72/04

Abstract: A communication method according to one embodiment comprises: transmitting, by a base station that manages a Licensed-Assisted Access (LAA) cell, downlink control information (DCI) to a user equipment, the DCI including subframe information and a transmission instruction of a sounding reference signal in the LAA cell, the subframe information indicates a specific subframe in which the user equipment should transmit the sounding reference signal; and transmitting, by the user equipment, the sounding reference signal to the base station in the specific subframe, based on the DCI.

公开(公告)号：US20180376439A1

公开(公告)日：2018-12-27

申请号：US16052399

申请日：2018-08-01

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki URABAYASHI

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

Abstract: A base station according to one embodiment includes: a transmitter configured to transmit a synchronization signal in a cell using a predetermined subcarrier spacing, the cell being managed by the base station; and a controller configured to arrange, based on the predetermined subcarrier spacing, the synchronization signal in a plurality of discrete subcarriers not continuous in a frequency direction.

公开(公告)号：US20180076936A1

公开(公告)日：2018-03-15

申请号：US15558212

申请日：2016-03-17

Applicant: KYOCERA CORPORATION

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

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/001 ,  H04L5/0044 ,  H04W16/14 ,  H04W72/0453

Abstract: A communication apparatus comprises: a first processing unit configured to perform processing of a first layer; and a second processing unit configured to perform processing of a second layer which is provided to be upper than the first layer. The second processing unit is configured to perform communication by using a first component carrier included in a licensed band and perform communication by using a second component carrier included in an unlicensed band. The first processing unit is configured to perform communication by using the first component carrier and performs communication by using an element carrier selected from among a plurality of element carriers associated with the second component carrier.

公开(公告)号：US20170339704A1

公开(公告)日：2017-11-23

申请号：US15660742

申请日：2017-07-26

Applicant: KYOCERA CORPORATION

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

IPC: H04W72/08 ,  H04W72/04 ,  H04W88/08 ,  H04W56/00 ,  H04W16/14

CPC classification number: H04W72/082 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04W16/14 ,  H04W56/001 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1273 ,  H04W88/08

Abstract: A base station according to a first aspect is used in a mobile communication system. The base station comprises: a transmitter configured to transmit, in an unlicensed band, a control signal and data by using a downlink subframe; and a controller configured to control transmission by the transmitter. The downlink subframe includes a PDCCH interval in which the control signal is arranged and a PDSCH interval in which the data is arranged. In the PDCCH interval, if there is an available region where the control signal is not arranged, the controller arranges a dummy signal in the available region.

公开(公告)号：US20240430894A1

公开(公告)日：2024-12-26

申请号：US18822950

申请日：2024-09-03

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO ,  Hiroyuki URABAYASHI

IPC: H04W72/20 ,  H04W36/08 ,  H04W72/04 ,  H04W74/0808

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 base station, a first radio resource used for communication between a user equipment and a wireless tag to the user equipment. The communication control method includes a step of performing, by the user equipment, the communication with the wireless tag by using the first radio resource. The first radio resource is a radio resource different from a second radio resource used for the communication between the base station and the user equipment.

公开(公告)号：US20190223183A1

公开(公告)日：2019-07-18

申请号：US16364252

申请日：2019-03-26

Applicant: KYOCERA Corporation

Inventor： Hiroyuki URABAYASHI ,  Chiharu YAMAZAKI ,  Hiroyuki ADACHI ,  Amit KALHAN

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04W72/042 ,  H04W72/048 ,  H04W92/10

Abstract: A mobile communication method for performing predetermined communication between a base station and a user terminal by using a narrow band including 6 resource blocks comprises: transmitting, from the base station to the user terminal, narrow band allocation information allocating a predetermined number of the narrow bands to the user terminal as allocation information of the narrow band used for the predetermined communication; performing by the user terminal, the predetermined communication by using the predetermined number of narrow bands based on the narrow band allocation information; transmitting, from the base station to the user terminal, an RRC message including information specifying a bandwidth supportable by the user terminal; and changing, by the base station, a number of bits of the narrow band allocation information according to the bandwidth supportable by the user terminal. The predetermined number of narrow bands are provided within a bandwidth supportable by the user terminal.