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公开(公告)号：US20210329648A1
公开(公告)日：2021-10-21
申请号：US17273239
申请日：2018-09-11
Applicant: NTT DOCOMO, INC.
Inventor： Ryosuke Osawa , Shaozhen Guo , Huan Wang , Xiaolin Hou
Abstract: A user equipment includes a receiving unit that receives information indicating a resource to be used for inter-terminal direct communication; and a transmitting unit that executes a transmission in the inter-terminal direct communication based on the information indicating the resource, wherein the information indicating the resource is a semi-static UE (User Equipment) dedicated configuration or a dynamic configuration that includes information in which the resource to be used for the inter-terminal direct communication is overwritten on an uplink resource or a flexible resource that is to be time division multiplexed in a semi-static UE common configuration.
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公开(公告)号：US20210266995A1
公开(公告)日：2021-08-26
申请号：US17261409
申请日：2018-07-24
Applicant: NTT DOCOMO, INC.
Inventor： Ryosuke Osawa , Yuichi Kakishima , Satoshi Nagata
Abstract: The user equipment comprises a reception unit configured to receive allocation information of reference signals from a base station apparatus or a first user equipment, the reference signals being used in a device-to-device direct communication; a control unit for determining a device-to-device direct communication signal based on the allocation information of reference signals used in the device-to-device direct communication; and a transmitter configured to transmit the determined device-to-device direct communication signal to a second user equipment, wherein the allocation information of reference signals used in the device-to-device direct communication includes a transmission density of the reference signals used in the device-to-device direct communication.
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公开(公告)号：US20210243586A1
公开(公告)日：2021-08-05
申请号：US17265702
申请日：2018-09-13
Applicant: NTT DOCOMO, INC.
Inventor： Ryosuke Osawa , Huan Wang , Xufei Zheng , Xiaolin Hou
Abstract: A user equipment includes a receiving unit that executes sensing for a part of candidate resources to be used for transmission of inter-terminal direct communication, a control unit that determines a resource to be used for transmission based on a result of the sensing, and a transmitting unit that transmits a message to another units of user equipment using the determined resource.
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公开(公告)号：US20210167827A1
公开(公告)日：2021-06-03
申请号：US17150306
申请日：2021-01-15
Applicant: NTT DOCOMO, INC.
Inventor： Ryosuke Osawa , Hiroki Harada , Yuichi Kakishima
Abstract: A terminal is disclosed including a transmitter that transmits a signal to which precoding is applied and a processor that: if given information is notified to the terminal, determines the precoding based on feedback information; and if the terminal is not notified of the given information, determines the precoding based on a reference signal. In other aspects, a radio communication method for a terminal, a base station, and a system are also disclosed.
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公开(公告)号：US20210160876A1
公开(公告)日：2021-05-27
申请号：US17255475
申请日：2018-07-03
Applicant: NTT DOCOMO, INC.
Inventor： Ryosuke Osawa , Kazuaki Takeda , Satoshi Nagata
IPC: H04W72/04
Abstract: A communication device includes a receiving unit that receives at least one of configuration information of a same center frequency used for downlink reception and sidelink reception in one slot or configuration information of a same center frequency used for uplink transmission and sidelink transmission in the one slot; and a control unit that configures, based on the received configuration information, at least one of the same center frequency for the downlink reception and the sidelink reception in the one slot or the same center frequency for the uplink transmission and the sidelink transmission in the one slot.
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Patent Agency Ranking
公开(公告)号：US20210153134A1
公开(公告)日：2021-05-20
申请号：US16630189
申请日：2017-07-12
Applicant: NTT DOCOMO, INC.
Inventor： Ryosuke Osawa , Yuichi Kakishima
Abstract: A user terminal according to one aspect of the present invention is characterized by having a receiving section that receives a power control ID, a control section that controls transmit power according to a transmit power parameter set specified by the power control ID, and a transmitting section that transmits a signal corresponding to an object set specified by the power control ID, using the transmit power. According to one aspect of the invention, it is possible to suppress a reduction in communication throughput, even in the case of using beam specific transmit power control.
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公开(公告)号：US20190356371A1
公开(公告)日：2019-11-21
申请号：US16484164
申请日：2018-02-08
Applicant: NTT DOCOMO, INC.
Inventor： Ryosuke Osawa , Hiroki Harada , Kazuaki Takeda
Abstract: To suppress continuation of deterioration of communication quality due to beam failure, also in the case of using beam forming in both transmission and reception, a user terminal according to one aspect of the present invention is characterized by having a control section that controls a transmission beam, and a transmission section that transmits a signal using the transmission beam, where when the control section updates the transmission beam, the transmission section transmits information about transmission beam update, using an updated transmission beam.
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公开(公告)号：US20190245599A1
公开(公告)日：2019-08-08
申请号：US16335777
申请日：2017-09-13
Applicant: NTT DOCOMO, INC.
Inventor： Tomoya Ohara , Hiroki Harada , Ryosuke Osawa
CPC classification number: H04B7/0617 , H04B7/0456 , H04B7/06 , H04B7/0626 , H04B7/0842 , H04W16/28 , H04W28/18
Abstract: Provided is a communication device. The communication device communicating with another communication device, includes: a reception unit configured to receive a signal transmitted from the another communication device; a transmission unit configured to transmit a signal to the another communication device; and a control unit configured to determine a weighting vector to be used in the reception unit and a precoding vector to be used in the transmission unit, in which, in a case where a specific reference signal indicating that the weighting vector used for receiving the signal in the another communication device has been changed is received by the reception unit, the control unit determines the precoding vector to be used for signal transmission by performing channel estimation by using the received specific reference signal, and in which the transmission unit transmits data precoded with the precoding vector determined by the control unit.
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公开(公告)号：US20190182784A1
公开(公告)日：2019-06-13
申请号：US16322608
申请日：2017-08-03
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Ryosuke Osawa , Tomoya Ohara , Kazuaki Takeda , Satoshi Nagata , Yuichi Kakishima
Abstract: The present invention is designed so that beamforming can be executed properly even when user terminals are in idle mode. A user terminal communicates with a radio base station that uses beamforming, and has a receiving section that receives a synchronization signal and/or a broadcast channel and a paging channel, which are transmitted using a single beam pattern or a plurality of beam patterns; and a control section that exerts control so that at least part of the paging channel is received based on a resource where the synchronization signal and/or the broadcast channel are allocated.
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公开(公告)号：US12063603B2
公开(公告)日：2024-08-13
申请号：US17257885
申请日：2018-07-09
Applicant: NTT DOCOMO, INC.
Inventor： Ryosuke Osawa , Yuichi Kakishima , Huan Wang
CPC classification number: H04W56/001 , H04L5/0048 , H04W24/10 , H04W72/12
Abstract: A user equipment communicates with a first user equipment or a base station apparatus, the user equipment including a receiving unit configured to receive a synchronization signal or a reference signal used in sidelink transmitted from the first user equipment; a control unit configured to measure a channel state of sidelink, based on the synchronization signal or the reference signal; and a transmitting unit configured to transmit, to the base station apparatus or the first user equipment, information indicating the channel state of sidelink.
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