-
公开(公告)号:US20250047548A1
公开(公告)日:2025-02-06
申请号:US18720335
申请日:2022-01-07
Applicant: NTT DOCOMO, INC.
Inventor: Xiaorui Yan , Neng Ye , Xiangming Li , Wenjia Liu , Xiaolin Hou , Lan Chen , Jing Wang , Yoshihisa Kishiyama , Takahiro Asai
IPC: H04L27/36
Abstract: The present disclosure provides a transmitting device, a receiving device and a receiving method. The receiving device includes: a receiving unit configured to receive information about a modulation parameter indicating a spiral factor; a control unit configured to determine pseudo-N-order first type of modulation according to the modulation parameter, wherein 2{circumflex over ( )}N first symbols of the pseudo-N-order first type of modulation correspond to a part of 2{circumflex over ( )}M second symbols of M-order second type of modulation, and M and N are positive integers.
-
公开(公告)号:US20240421947A1
公开(公告)日:2024-12-19
申请号:US18700589
申请日:2021-10-29
Applicant: NTT DOCOMO, INC.
Inventor: Wenjia Liu , Xiaolin Hou , Lan Chen
Abstract: The disclosure provides methods and devices thereof for wireless communication at a network side device and a user equipment (UE). The method includes: receiving information about a first UE; when the first UE is determined to be a first type of UE based on the information, multi-layer coding data for the first UE to obtain a first data stream and a second data stream about the first UE, performing a non-orthogonal multiple-access processing of the first and the second data streams of the first UE with data for a second UE and data for a third UE respectively, to obtain a first preprocessed data and a second preprocessed data, and pre-coding the first preprocessed data and second preprocessed data respectively, wherein the second UE and the third UE are a second type of UE. The method provided in the disclosure removes inter-beam and intra-beam interference and improves system efficiency.
-
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.
-
公开(公告)号:US12150140B2
公开(公告)日:2024-11-19
申请号:US17439266
申请日:2019-03-15
Applicant: NTT DOCOMO, INC.
Inventor: Kazuki Takeda , Hiroki Harada , Satoshi Nagata , Lihui Wang , Xiaolin Hou
IPC: H04W4/00 , H04L1/1812 , H04W72/23
Abstract: A user terminal according to an aspect of the present disclosure comprises: a reception unit which receives downlink control information including a field for each transport block (TB) or a field for a specific transport block (TB); and a control unit which controls the transmission or reception of a plurality of different transport blocks (TB) using a plurality of shared channels that are scheduled according to the downlink control information over a plurality of time units. Accordingly, it is possible to appropriately control the transmission or reception of a plurality of pieces of data that are multi-data scheduled.
-
公开(公告)号:US12143980B2
公开(公告)日:2024-11-12
申请号:US17635172
申请日:2019-08-15
Applicant: NTT DOCOMO, INC.
Inventor: Yuki Matsumura , Satoshi Nagata , Shaozhen Guo , Jing Wang , Xiaolin Hou
IPC: H04W72/1263 , H04W16/28 , H04W72/044 , H04W72/23 , H04W80/02
Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a Physical Downlink Control Channel (PDCCH) configuration with a maximum number of control resource sets (CORESETs) exceeding 3, and a control section that assumes that a transmission configuration indication state (TCI state) for a PDCCH with respect to the CORESETs is designated on the basis of a Medium Access Control Control Element (MAC CE). According to one aspect of the present disclosure, it is possible to perform DL communication preferably even when multiple panels/TRPs are used.
-
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.
-
公开(公告)号:US12041619B2
公开(公告)日:2024-07-16
申请号:US16961136
申请日:2018-01-11
Applicant: NTT DOCOMO, INC.
Inventor: Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
IPC: H04W72/23 , H04L5/00 , H04W72/0446
CPC classification number: H04W72/23 , H04L5/0055 , H04W72/0446
Abstract: To properly control UL transmissions of A/N in response to a plurality of DL transmissions with different requirements and the like, one aspect of a user terminal in the present disclosure has a transmitting section that transmits a first delivery acknowledgement signal (A/N) in response to a first PDSCH and a second A/N in response to a second PDSCH transmitted later than the first PDSCH, and a control section that controls to transmit at least one of the first A/N and the second A/N, using one of an uplink control channel configured for the first A/N and another uplink control channel configured for the second A/N, in a case where transmission timing of the first A/N overlaps transmission timing of the second A/N.
-
公开(公告)号:US20240121037A1
公开(公告)日:2024-04-11
申请号:US18544228
申请日:2023-12-18
Applicant: NTT DOCOMO, INC.
Inventor: Daisuke Kurita , Hiroki Harada , Jing Wang , Xiaolin Hou
IPC: H04L5/00
CPC classification number: H04L5/0003
Abstract: A radio communication node is disclosed including an upper node connecting unit that is used for connecting with an upper node; a lower node connecting unit that is used for connecting with a lower node; and a control unit that notifies the upper node or a network whether or not the upper node connecting unit and the lower node connecting unit are compatible with at least one of a space division multiplexing and a frequency division multiplexing. In another aspect, a radio communication method is also disclosed.
-
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.
-
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.
-
-
-
-
-
-
-
-
-