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：US20250133598A1

公开(公告)日：2025-04-24

申请号：US18682289

申请日：2022-08-16

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Satoshi Nagata ,  Jing Wang ,  Weiqi Sun

IPC: H04W74/0833 ,  H04W52/04

Abstract: To properly perform communication even in a case where communication is performed using a plurality of transmission points. A terminal according to an aspect of the present disclosure includes: a receiving section that receives a downlink control channel indicating transmission of a random access channel to at least one of a serving cell and a non-serving cell; and a control section that controls transmission of the random access channel on the basis of at least one of a random access channel configuration corresponding to a given cell and power information regarding a synchronization signal block corresponding to the given cell when the random access channel is transmitted on the basis of the downlink control channel.

公开(公告)号：US20250089068A1

公开(公告)日：2025-03-13

申请号：US18726654

申请日：2022-01-07

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Satoshi Nagata ,  Jing Wang ,  Weiqi Sun

IPC: H04W72/232 ,  H04L5/00

Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives control information for mapping one or more TCI states to a codepoint of one transmission configuration indication (TCI) field and that receives one or more pieces of downlink control information (DCI) for indicating a first TCI state applicable to a plurality of types of first signals and a second TCI state applicable to a plurality of types of second signals, and a control section that applies the first TCI state to the first signals and that applies the second TCI state to the second signals, based on the control information and the codepoint of the TCI field included in the DCI. The first signal and the second signal are at least one of two physical downlink control channels (PDCCHs) linked to each other, a single frequency network (SFN) PDCCH, an SFN physical downlink shared channel (PDSCH), physical uplink shared channel (PUSCH) repetition transmission, and physical uplink control channel (PUCCH) repetition transmission. According to one aspect of the present disclosure, it is possible to appropriately perform TCI state indication.

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：US12193034B2

公开(公告)日：2025-01-07

申请号：US17793305

申请日：2020-01-24

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Daisuke Kurita ,  Satoshi Nagata ,  Jing Wang

IPC: H04W16/14 ,  H04W72/30

Abstract: A terminal includes a reception unit that receives a synchronization signal block in an unlicensed band of a high frequency band higher than or equal to a frequency band of a frequency range 2 (FR2), the FR2 being in a range including a frequency range 1 (FR1) that is a low frequency band and the FR2 that is a high frequency band in a new radio (NR) system; and a control unit that identifies an index of a candidate position for transmitting the synchronization signal block based on a sequence of a demodulation reference signal of a broadcast channel included in the synchronization signal block and a payload of the broadcast channel.

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：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.