公开(公告)号：US20150079937A1

公开(公告)日：2015-03-19

申请号：US14384693

申请日：2013-03-15

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki Adachi

IPC: H04W36/34 ,  H04W24/10 ,  H04W12/08

CPC classification number: H04W36/34 ,  H04W12/06 ,  H04W12/08 ,  H04W24/10 ,  H04W36/0061 ,  H04W36/04 ,  H04W48/02 ,  H04W84/045

Abstract: A communication control method applied to a mobile communication system, the mobile communication system including a home base station that forms a specific cell, and a mobility management device that performs verification of a user terminal for access permission to the specific cell in a handover procedure of the user terminal to the specific cell, comprises a step A of updating, by the user terminal, a list of a specific cell accessible by the user terminal; and a step B of omitting the verification of the user terminal by the mobility management device in the handover procedure when an elapsed time period after the update of the list is within a predetermined time period.

Abstract translation: 一种应用于移动通信系统的通信控制方法，所述移动通信系统包括形成特定小区的家庭基站，以及移动性管理装置，其在切换程序中执行对所述特定小区的访问许可的用户终端的验证 用户终端到特定小区包括用户终端更新用户终端可访问的特定小区的列表的步骤A; 以及在列表更新之后的经过时间段在预定时间段内时，在移交程序中由移动管理装置省略用户终端的验证的步骤B.

公开(公告)号：US11503595B2

公开(公告)日：2022-11-15

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 ,  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.

公开(公告)号：US11337107B2

公开(公告)日：2022-05-17

申请号：US16514416

申请日：2019-07-17

Applicant: KYOCERA Corporation

Inventor： Takahiro Saiwai ,  Hiroyuki Adachi ,  Noriyoshi Fukuta ,  Masato Fujishiro

IPC: H04W28/02 ,  H04W72/04 ,  H04W92/18 ,  H04W72/12 ,  H04W88/04 ,  H04W76/14

Abstract: 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.

公开(公告)号：US11228927B2

公开(公告)日：2022-01-18

申请号：US16736431

申请日：2020-01-07

Applicant: KYOCERA Corporation

Inventor： Naohisa Matsumoto ,  Kugo Morita ,  Hiroyuki Adachi ,  Hiroyuki Urabayashi ,  Chiharu Yamazaki

IPC: H04W24/08 ,  H04W16/14 ,  H04W36/00 ,  H04W24/10

Abstract: A user terminal, method used in a user terminal, and an apparatus for a user terminal include receiving from a base station measurement configuration information configuring measurement of a frequency channel in an unlicensed band, measuring signal strength of radio signals transmitted in the frequency channel, determining occupancy situation of the frequency channel based on the measured signal strength and a threshold, and transmitting to the base station a measurement report including information indicating the occupancy situation of the frequency channel.

公开(公告)号：US11012906B2

公开(公告)日：2021-05-18

申请号：US16526900

申请日：2019-07-30

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Hiroyuki Urabayashi ,  Hiroyuki Adachi ,  Henry Chang

IPC: H04W36/08 ,  H04W76/27 ,  H04W4/06 ,  H04W16/26 ,  H04W36/30 ,  H04W48/20

Abstract: A user equipment receives an MBMS service provided using SC-PTM transmission. The user equipment performs a cell reselection operation of selecting a cell to be used as a serving cell of the user equipment while the user equipment is in an RRC idle mode. In the cell reselection operation, the user equipment selects, as the serving cell, a cell having a highest ranking determined based on a radio quality and an offset from among a plurality of cells. In the cell reselection operation, when the user equipment is in an enhanced coverage, the user equipment uses an infinite offset as the offset to be applied to a cell where the MBMS service is provided by the SC-PTM transmission, in response to a predetermined condition for the SC-PTM transmission being satisfied, when the user equipment goes out of the enhanced coverage, stop using the infinite offset.

公开(公告)号：US10999850B2

公开(公告)日：2021-05-04

申请号：US16319860

申请日：2017-07-25

Applicant: KYOCERA Corporation

Inventor： Hiroyuki Adachi ,  Takahiro Saiwai ,  Masato Fujishiro ,  Kugo Morita

IPC: H04W72/04

Abstract: 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.

公开(公告)号：US10834785B2

公开(公告)日：2020-11-10

申请号：US15751687

申请日：2016-08-08

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki Adachi ,  Masato Fujishiro ,  Takahiro Saiwai

IPC: H04W92/18 ,  H04W72/12 ,  H04W76/14 ,  H04W8/00 ,  H04W72/04 ,  H04W88/04 ,  H04W28/02

Abstract: 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.

公开(公告)号：US10772014B2

公开(公告)日：2020-09-08

申请号：US16189555

申请日：2018-11-13

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki Adachi

IPC: H04W36/00 ,  H04W72/04 ,  H04W72/02 ,  H04W56/00 ,  H04W36/08 ,  H04W36/38 ,  H04W4/46 ,  H04W92/18

Abstract: A base station according to one embodiment comprises: a controller configured to manage a first cell; and a transmitter configured to transmit to a radio terminal a message for a handover from the first cell to a second cell. The message includes information of a resource pool used for a proximity-based service in the second cell, and synchronization setting information for transmitting or receiving a synchronization signal in the proximity-based service in the second cell.

公开(公告)号：US10588111B2

公开(公告)日：2020-03-10

申请号：US15890979

申请日：2018-02-07

Applicant: KYOCERA CORPORATION

Inventor： Masato Fujishiro ,  Hiroyuki Adachi ,  Henry Chang

IPC: H04W76/28 ,  H04W68/02 ,  H04W68/00 ,  H04W52/02

Abstract: A base station according to a first aspect includes a controller configured to perform a process of receiving, from a mobility management apparatus, a paging message used for paging of a radio terminal. The paging message includes a first field for idle mode non-extended DRX and a second field for idle mode extended DRX. If information indicating a DRX cycle of the idle mode extended DRX is included in the second field, the controller is configured to determine that the idle mode extended DRX is configured to the radio terminal.

公开(公告)号：US10555367B2

公开(公告)日：2020-02-04

申请号：US15553473

申请日：2016-02-26

Applicant: KYOCERA CORPORATION

Inventor： Masato Fujishiro ,  Hiroyuki Adachi

IPC: H04W24/02 ,  H04W72/04 ,  H04W76/28 ,  H04L5/00 ,  H04W52/02

Abstract: A base station comprises a transmitter configured to transmit, to a user terminal, information indicating at least any one of a first DRX cycle, a second DRX cycle, and a third DRX cycle. The DRX cycle indicates a cycle during which a user terminal discontinuously monitors a downlink control channel transmitted from a base station. The second DRX cycle has a cycle longer than the first DRX cycle. The third DRX cycle has a cycle longer than the second DRX cycle.