公开(公告)号：US20250158772A1

公开(公告)日：2025-05-15

申请号：US18836625

申请日：2022-02-10

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Satoshi Nagata ,  Jing Wang ,  Lan Chen

IPC: H04L5/00 ,  H04L1/00

Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a configuration of a demodulation reference signal (DMRS), and a control section that controls transmission and reception of the DMRS, based on one or more associations between a plurality of code division multiplexing (CDM) groups and a plurality of DMRS ports and the configuration. The number of the plurality of DMRS ports for DMRS configuration type 1 is larger than 8, and the number of the plurality of DMRS ports for DMRS configuration type 2 is larger than 12. The plurality of DMRS ports include a first plurality of DMRS ports and a second plurality of DMRS ports. According to one aspect of the present disclosure, an appropriate number of DMRS ports can be used.

公开(公告)号：US20250063604A1

公开(公告)日：2025-02-20

申请号：US18721045

申请日：2021-12-24

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Naoya Shibaike ,  Satoshi Nagata ,  Jing Wang ,  Qiping Pi ,  Lan Chen

IPC: H04W74/0833 ,  H04W16/28

Abstract: A terminal according to one aspect of the present disclosure includes a transmitting section that transmits a plurality of repetitions of a physical random access channel by using a plurality of different beams, and a control section that determines a reference beam corresponding to one of the plurality of different beams and that determines, on the basis of reception of a response to the physical random access channel, a subsequent uplink beam, the reception using the reference beam. According to one aspect of the present disclosure, it is possible to improve coverage in a random access procedure.

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：US20250024292A1

公开(公告)日：2025-01-16

申请号：US18708509

申请日：2022-11-10

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Satoshi Nagata ,  Jing Wang ,  Lan Chen

IPC: H04W24/10 ,  H04W72/20

Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a channel state information (CSI) report configuration corresponding to a group-based CSI report and including two channel measurement resource (CMR) sets, and a control section that controls transmission of the CSI report, based on the CSI report configuration. According to one aspect of the present disclosure, the group-based CSI report can be appropriately performed.

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

IPC: H04L5/00 ,  H04W72/02

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

IPC: H04B7/08 ,  H04B7/06

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：US20240406967A1

公开(公告)日：2024-12-05

申请号：US18696168

申请日：2021-09-30

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Naoya Shibaike ,  Satoshi Nagata ,  Weiqi Sun ,  Jing Wang ,  Qiping Pi ,  Lan Chen

IPC: H04W72/231 ,  H04B7/06 ,  H04W72/1273 ,  H04W76/20

Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a downlink control channel for transmitting one piece of downlink control information for scheduling a plurality of downlink shared channels, and a control section that, when at least one codepoint of a transmission configuration indication (TCI) notification field configured in the downlink control information indicates a plurality of TCI states, judges at least one of a quasi-co-location (QCL) and a TCI state corresponding to the plurality of respective downlink shared channels, based on whether offset between the downlink control channel and at least one of the plurality of downlink shared channels is less than a certain threshold value.

公开(公告)号：US20240388406A1

公开(公告)日：2024-11-21

申请号：US18688080

申请日：2021-09-08

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Satoshi Nagata ,  Jing Wang ,  Lan Chen

IPC: H04L5/00

Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a configuration indicating one or two beam failure detection reference signal (BFD-RS) sets for a cell, and a control section that assesses radio link quality by using at least one of two transmission configuration indication (TCI) states associated with one control resource set or two physical downlink control channels (PDCCHs), and the one or two BFD-RS sets. According to one aspect of the present disclosure, it is possible to appropriately perform beam failure detection.

公开(公告)号：US20240340863A1

公开(公告)日：2024-10-10

申请号：US18293623

申请日：2021-08-04

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Takahashi ,  Shinya Kumagai ,  Satoshi Nagata ,  Qiping Pi ,  Jing Wang ,  Lan Chen

IPC: H04W72/0446 ,  H04W72/11

CPC classification number: H04W72/0446 ,  H04W72/11

Abstract: This terminal comprises: a transmission unit that uses a cell different from cells in which signals based on dynamic scheduling have been received, to transmit response signals responsive to the signals; and a control unit that multiplexes overlapping slots of the response signals transmitted in the different cell.

公开(公告)号：US20240314773A1

公开(公告)日：2024-09-19

申请号：US18575655

申请日：2021-07-02

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Satoshi Nagata ,  Jing Wang ,  Lan Chen

IPC: H04W72/1268 ,  H04L5/00 ,  H04W80/02

CPC classification number: H04W72/1268 ,  H04L5/0051 ,  H04W80/02

Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives configurations of a first sounding reference signal (SRS) resource set and a second SRS resource set for transmission of a physical uplink shared channel (PUSCH), and that receives a medium access control (MAC) control element (CE) indicating one or more SRS resources in at least one of the first SRS resource set and the second SRS resource set and indicating one or more pathloss reference signals; and a control section that controls the transmission of the physical uplink shared channel (PUSCH) on the basis of one or two SRS resources of the one or more SRS resources and the one or more pathloss reference signals. According to an aspect of the present disclosure, a PL-RS and a transmission parameter can be appropriately associated with each other.