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公开(公告)号：US12184351B2
公开(公告)日：2024-12-31
申请号：US17459428
申请日：2021-08-27
Applicant: NTT DOCOMO, INC.
Inventor： Kazuaki Takeda , Satoshi Nagata , Chongning Na , Xin Wang , Huiling Jiang , Yuichi Kakishima
IPC: H04B17/345 , H04W24/08 , H04W72/23 , H04W84/04 , H04W88/02
Abstract: A terminal is disclosed that includes a receiver that receives, via higher layer signaling, configuration information indicating a first resource for interference measurement, a second resource of non-zero power (NZP) channel state information reference signal (CSI-RS) for interference measurement, and a third resource of NZP CSI-RS for channel measurement. The terminal also includes a processor that performs interference measurement by using the first resource or the second resource, and performs channel measurement by using the third resource. The configuration information indicates a plurality of combinations of a third resource candidate and at least one of a first resource candidate and a second resource candidate. The processor uses, for measurement, a combination indicated by downlink control information among the plurality of combinations. In other aspects, a radio communication method, a base station, and a system are also disclosed.
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公开(公告)号：US20240421890A1
公开(公告)日：2024-12-19
申请号：US18706275
申请日：2021-11-24
Applicant: NTT DOCOMO, INC.
Inventor： Xiang Li , Xiaolin Hou , Xin Wang , Lan Chen , Satoshi Suyama , Tatsuki Okuyama
Abstract: Provided in the embodiments of the present disclosure are a receiving device and a transmitting device. The receiving device according to the embodiments of the present disclosure includes: a control unit, configured to determine information on intensity of a light-of-sight (LOS) channel component in a communication channel; and a sending unit, configured to send the determined information to a transmitting device. The transmitting device according to the embodiments of the present disclosure includes: a transceiving unit, which includes a first antenna array; and a control unit, configured to obtain information about the intensity of a light-of-sight (LOS) channel component in a communication channel, and to determine a configuration mode of the first antenna array according to the information.
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公开(公告)号：US12063130B2
公开(公告)日：2024-08-13
申请号：US18319232
申请日：2023-05-17
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Satoshi Nagata , Shaozhen Guo , Jing Wang , Xin Wang , Xiaolin Hou
CPC classification number: H04L25/03834 , H04L25/03159 , H04L25/03343 , H04L27/26025
Abstract: A terminal includes a transmitting and receiving unit and a control unit. The transmitting and receiving unit transmits and receives a slot including a plurality of symbols. The control unit determines number of symbols included in a sub-frame on the basis of a time length of the symbol. The control unit determines the number of symbols included in the sub-frame according to a degree of modulation at which the time length of the symbol varies.
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公开(公告)号：US20240063969A1
公开(公告)日：2024-02-22
申请号：US18258913
申请日：2021-02-01
Applicant: NTT DOCOMO, INC.
Inventor： Xin Wang , Xiaolin Hou , Anxin Li , Lan Chen , Hiroki Harada
IPC: H04L5/00 , H04B7/0456
CPC classification number: H04L5/0051 , H04B7/0456
Abstract: The present disclosure provides a base station, a terminal and channel reconstruction methods performed by a base station and a terminal. The base station includes: a transmitting unit configured to transmit channel state information reference signals of multiple ports to a terminal, wherein the channel state information reference signals of multiple ports have a first density in frequency domain in one time interval; a receiving unit configured to receive precoding matrix indication information of a first granularity from the terminal; a processing unit configured to determine a channel of a second granularity according to the precoding matrix indication information of the first granularity, and perform downlink precoding on the channel, wherein the second granularity is finer than the first granularity.
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公开(公告)号：US20240056142A1
公开(公告)日：2024-02-15
申请号：US18258641
申请日：2021-02-01
Applicant: NTT DOCOMO, INC.
Inventor： Xin Wang , Xiaolin Hou , Anxin Li , Lan Chen , Hiroki Harada
IPC: H04B7/0456
CPC classification number: H04B7/0478
Abstract: The present disclosure provides a base station and a terminal. The base station includes: a receiving unit configured to receive precoding matrix indicator information of a first granularity from a terminal; and a processing unit configured to perform channel reconstruction according to the precoding matrix indicator information to obtain a first channel, use a super-resolution network to perform interpolation and denoising processing on a channel having the first granularity to obtain a second channel, and perform downlink precoding on the second channel, wherein the first channel has the first granularity, the second channel has a second granularity, and the second granularity is finer than the first granularity.
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Patent Agency Ranking
公开(公告)号：US11553514B2
公开(公告)日：2023-01-10
申请号：US16982218
申请日：2018-03-22
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Huiling Li , Lihui Wang , Chongning Na , Xin Wang , Xiaolin Hou
Abstract: To appropriately control UL transmission such as a CSI reporting when performing communication by applying a different configuration from those of legacy LTE systems, a user terminal according to one aspect of the present disclosure includes: a transmission section that transmits one or more UL signals by using an uplink shared channel based on an instruction from a base station; and a control section that controls the transmission assuming that transmission durations of a plurality of UL signals do not overlap in a same symbol, or, when at least part of the transmission durations of the plurality of UL signals overlap in the same symbol, performs control to select and transmit the part of the UL signals.
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公开(公告)号：US11357009B2
公开(公告)日：2022-06-07
申请号：US16637783
申请日：2018-08-09
Applicant: NTT DOCOMO, INC.
Inventor： Min Liu , Chongning Na , Xin Wang , Yuichi Kakishima
Abstract: A beam selection method, a base station, and a user equipment are presented. The beam selection method performed by the base station includes: receiving transmission beam group information on the base station and information on receiving capability of a receiving set of a user equipment corresponding to each transmission beam group fed back by the user equipment, where the information on receiving capability of the receiving set is the number of reception beams that the user equipment can simultaneously form in the receiving set; and selecting transmission beams corresponding to the receiving set and used for transmitting information to the user equipment based at least in part on the transmission beam group information and the information on receiving capability of each receiving set.
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公开(公告)号：US11228463B2
公开(公告)日：2022-01-18
申请号：US16622699
申请日：2018-06-15
Applicant: NTT DOCOMO, INC.
Abstract: An embodiment of the present invention provides a sounding reference signal (SRS) transmission method, a base station, and a user equipment, the SRS transmission method including: generating SRS configuration information for at least two UEs, such that an SRS of a first type of UE of the at least two UEs is non-orthogonal with an SRS of a second type of UE of the at least two UEs; transmitting the SRS configuration information of the at least two UEs.
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公开(公告)号：US20210391932A1
公开(公告)日：2021-12-16
申请号：US17459428
申请日：2021-08-27
Applicant: NTT DOCOMO, INC.
Inventor： Kazuaki Takeda , Satoshi Nagata , Chongning Na , Xin Wang , Huiling Jiang , Yuichi Kakishima
IPC: H04B17/345 , H04W24/08 , H04W72/04
Abstract: A terminal is disclosed that includes a receiver that receives, via higher layer signaling, configuration information indicating a first resource for interference measurement, a second resource of non-zero power (NZP) channel state information reference signal (CSI-RS) for interference measurement, and a third resource of NZP CSI-RS for channel measurement. The terminal also includes a processor that performs interference measurement by using the first resource or the second resource, and performs channel measurement by using the third resource. The configuration information indicates a plurality of combinations of a third resource candidate and at least one of a first resource candidate and a second resource candidate. The processor uses, for measurement, a combination indicated by downlink control information among the plurality of combinations. In other aspects, a radio communication method, a base station, and a system are also disclosed.
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公开(公告)号：US10952067B2
公开(公告)日：2021-03-16
申请号：US16776252
申请日：2020-01-29
Applicant: NTT DOCOMO, INC.
Inventor： Jing Wang , Anxin Li , Lan Chen , Xin Wang , Xiaolin Hou
Abstract: The present disclosure provides a terminal and a base station in a wireless communication system. The terminal includes: a processing unit for obtaining terminal network capability information about at least one of a computing capability, a storage capability, and a support capability for neural network of the terminal; and a transmitting unit for transmitting the terminal network capability information to a base station.
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