公开(公告)号：US20180139614A1

公开(公告)日：2018-05-17

申请号：US15577459

申请日：2016-05-27

Applicant: SHARP KABUSHIKI KAISHA

Inventor： TAMOTSU SATOH ,  KATSUTOSHI ISHIKURA ,  HIDEAKI SHINMEI ,  ATSUSHI YAMAZAKI

IPC: H04W16/08 ,  H04J11/00 ,  H04W16/32 ,  H04W16/10

CPC classification number: H04W16/08 ,  H04J11/005 ,  H04W16/10 ,  H04W16/32

Abstract: A communication system includes a first base station device and a second base station device, each of which forms one or more cells, a terminal device to be connected to the cells, and a centralized control device. The centralized control device includes: an interference control unit configured to, in a case that interference between a cell formed by the first base station device and a cell formed by the second base station device is detected, suppress the interference by causing at least any one of the first base station device and the second base station device to change the formation of the cells and form a cell to which the terminal device is connectable based on a connection state prior to suppressing the interference in an area in which the interference has occurred.

公开(公告)号：US20190289662A1

公开(公告)日：2019-09-19

申请号：US16285754

申请日：2019-02-26

Applicant: SHARP KABUSHIKI KAISHA

Inventor： KATSUTOSHI ISHIKURA ,  YUHSUKE TAKAGI ,  ATSUSHI YAMAZAKI ,  HIDEYUKI NAKANISHI

IPC: H04W76/28 ,  H04W72/04

Abstract: A base station device includes: a communication unit configured to wirelessly communicate with a terminal device; a storage unit; and a control unit. The control unit is configured to refer to discontinuous reception information, stored in the storage unit, which indicates a plurality of discontinuous reception settings, transmit transmission data to the terminal device in at least a portion of a first reception period of time corresponding to at least one of the discontinuous reception settings, and transmit the transmission data to the terminal device in at least a portion of a second reception period of time corresponding to at least another one of the discontinuous reception settings in a case that it is determined that response information with respect to the transmitted transmission data is not received.

公开(公告)号：US20220286962A1

公开(公告)日：2022-09-08

申请号：US17637993

申请日：2021-03-11

Applicant: SHARP KABUSHIKI KAISHA

Inventor： KATSUTOSHI ISHIKURA ,  Tadashi AOKI ,  ATSUSHI YAMAZAKI ,  HIDEYUKI NAKANISHI

IPC: H04W52/02 ,  H04W64/00

Abstract: To reduce power consumption of a terminal. A terminal including: a first communicator that performs wireless communication by a first communication method; a second communicator that performs wireless communication by a second communication method; a standby determiner that determines a communication method to be used for standby; and a power source controller that controls a power source of the second communicator on the basis of the communication method determined by the standby determiner.

公开(公告)号：US20210105630A1

公开(公告)日：2021-04-08

申请号：US16322451

申请日：2017-08-04

Applicant: SHARP KABUSHIKI KAISHA

Inventor： KATSUTOSHI ISHIKURA ,  SHUICHI TAKEHANA ,  ATSUSHI YAMAZAKI ,  YUHSUKE TAKAGI ,  HIDEYUKI NAKANISHI

IPC: H04W16/14 ,  H04W16/32 ,  H04W72/12 ,  H04L5/00

Abstract: A communication system is for improving utilization efficiency of radio resources. The communication system includes a base station device and a plurality of terminal devices that communicate with the base station device. The base station device includes a first control unit that assigns radio resources including at least one or more resource blocks to at least one of the plurality of terminal devices. The at least one of the plurality of terminal devices comprises a second control unit that transmits transmission data by using at least some of the radio resources assigned to the at least one of the plurality of terminal devices.

公开(公告)号：US20200252845A1

公开(公告)日：2020-08-06

申请号：US16782375

申请日：2020-02-05

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YUHSUKE TAKAGI ,  KATSUTOSHI ISHIKURA ,  ATSUSHI YAMAZAKI ,  HIDEYUKI NAKANISHI ,  RYOKI HINATA

IPC: H04W36/06 ,  H04W36/22 ,  H04W36/38 ,  H04W28/08

Abstract: A base-station apparatus includes: a communicator that performs wireless communication; and a controller. During communication with at least a first terminal apparatus, when a communication volume used for communication that is newly stated with a second terminal apparatus becomes smaller than or equal to an un-used communication volume, the controller transmits, to a target terminal apparatus that is one of the first and second terminal apparatuses, a communication instruction for communication with a second base-station apparatus having a coverage range in which the target terminal apparatus is located, and when a communication volume used for communication with the target terminal apparatus exceeds the un-used communication volume, the controller transmits a callback instruction for callback from the second base-station apparatus to the base-station apparatus to the target terminal apparatus or the second base-station apparatus.

公开(公告)号：US20240323802A1

公开(公告)日：2024-09-26

申请号：US18578061

申请日：2022-02-17

Applicant: SHARP KABUSHIKI KAISHA

Inventor： KATSUTOSHI ISHIKURA ,  ATSUSHI YAMAZAKI ,  MAKOTO YAMAMOTO ,  RYOKI HINATA ,  HIDEAKI SHINMEI ,  Atsuko KUNISADA

IPC: H04W40/22 ,  H04W28/02 ,  H04W76/10

CPC classification number: H04W40/22 ,  H04W28/0268 ,  H04W76/10

Abstract: A communication apparatus includes a first communication unit configured to perform first communication using a first communication method, a second communication unit configured to perform second communication using a second communication method, and a controller. The controller performs the second communication via the second communication unit with a terminal apparatus supporting both of the first communication method and the second communication method and not performing communication using the first communication method, to acquire connection configuration information in the first communication method. The controller performs the first communication with a device other than the terminal apparatus via the first communication unit, using a configuration according to the connection configuration information.

公开(公告)号：US20240292488A1

公开(公告)日：2024-08-29

申请号：US18572998

申请日：2022-02-22

Applicant: SHARP KABUSHIKI KAISHA

Inventor： KATSUTOSHI ISHIKURA ,  Tadashi AOKI ,  ATSUSHI YAMAZAKI ,  HIDEYUKI NAKANISHI ,  SHINICHI SAWADA

IPC: H04W76/28 ,  H04L5/00 ,  H04W72/512

CPC classification number: H04W76/28 ,  H04L5/001 ,  H04W72/512

Abstract: There is provided a communication apparatus and a terminal apparatus that can improve low latency operation performance. The communication apparatus includes a control unit that configures a configuration value related to a DRX operation in a terminal apparatus depending on a state of the terminal apparatus that can perform wireless communication by both a first communication scheme and a second communication scheme; and a transmission unit that transmits the configuration value configured by the control unit to a base station apparatus or the terminal apparatus. In a case that the terminal apparatus is in a first state, the control unit configures the configuration value to a first value for the first communication scheme and the second communication scheme in such a manner that the first communication scheme and the second communication scheme come into an active state at temporally different timings, with regard to the DRX operation.

公开(公告)号：US20220295406A1

公开(公告)日：2022-09-15

申请号：US17638768

申请日：2021-03-02

Applicant: SHARP KABUSHIKI KAISHA

Inventor： KATSUTOSHI ISHIKURA ,  ATSUSHI YAMAZAKI ,  YUHSUKE TAKAGI ,  HIDEYUKI NAKANISHI ,  RYOKI HINATA

IPC: H04W52/02 ,  H04W76/30

Abstract: To reduce power consumption of a terminal. A base station including a generator that generates control information on controlling a power source of a communicator in a terminal that executes a wireless communication in a first communication method and a second communication method, the communicator being for executing the wireless communication in the second communication method, and a transmitter that transmits the control information to the terminal that controls the power source of the communicator based on the control information.

公开(公告)号：US20190014522A1

公开(公告)日：2019-01-10

申请号：US15748768

申请日：2016-07-13

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIROYUKI SAGA ,  TAMOTSU SATOH ,  HIDEAKI SHINMEI ,  KATSUTOSHI ISHIKURA ,  ATSUSHI YAMAZAKI ,  HIROKAZU KOBAYASHI

IPC: H04W36/20 ,  H04W36/06 ,  H04W36/00 ,  H04W72/04 ,  H04W16/14

Abstract: A communication unit is configured to perform communication using a first frequency band or a second frequency band different from the first frequency band. A wireless environment measuring unit is configured to detect interference of radio waves used for the communication. A communication control unit is configured to control the communication. The communication control unit is configured to transmit, to a base station device which performs communication using the second frequency band, interference information about a frequency band in which the wireless environment measuring unit has detected interference or wireless environment information including a request for change of a frequency band used for the communication, the transmission being performed in a case that interference is detected in the first frequency band.

公开(公告)号：US20180227767A1

公开(公告)日：2018-08-09

申请号：US15749467

申请日：2016-07-13

Applicant: SHARP KABUSHIKI KAISHA

Inventor： ATSUSHI YAMAZAKI ,  KATSUTOSHI ISHIKURA ,  HIDEAKI SHINMEI ,  TAMOTSU SATOH ,  HIROYUKI SAGA

IPC: H04W16/14 ,  H04W24/08 ,  H04W72/04

Abstract: A terminal device includes: a communication unit configured to communicatively connect with a first network using a first frequency band or a second frequency band; a detection unit configured to detect communication of a second network that is performed using the second frequency band; an interference avoidance unit configured to perform a process of avoiding radio interference by the second network; and a control unit configured to perform control such that the interference avoidance unit performs the process of avoiding radio interference by the second network band in a case that an identifier identifying communication of the second network detected by the detection unit includes a specific identifier.