公开(公告)号：US20240040585A1

公开(公告)日：2024-02-01

申请号：US18266212

申请日：2020-12-11

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Hiroki Harada ,  Satoshi Nagata

IPC: H04W72/232

CPC classification number: H04W72/232

Abstract: A terminal has a first receiver that receives a first control signal and a second receiver that receives a second control signal or data. The first receiver receives a first control signal that includes at least either information, instruction or control relating to the second control signal or data received by the second receiver.

公开(公告)号：US11832278B2

公开(公告)日：2023-11-28

申请号：US17455834

申请日：2021-11-19

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Kazuki Takeda ,  Daisuke Murayama ,  Satoshi Nagata

IPC: H04W72/00 ,  H04W72/30 ,  H04L5/00 ,  H04W56/00 ,  H04W72/0453 ,  H04B7/0413

CPC classification number: H04W72/30 ,  H04L5/0094 ,  H04W56/001 ,  H04W72/0453 ,  H04B7/0413

Abstract: A terminal is disclosed including a receiver that receives a synchronization signal block comprising a broadcast channel comprising given information, provided by higher layer signaling, regarding a control resource set for a control channel; and a processor that determines an offset in a frequency direction with respect to a synchronization signal block including the broadcast channel and the control resource set, wherein the offset is based on the given information. In other aspects, a radio communication method, a base station, and a system are also disclosed.

公开(公告)号：US20230354048A1

公开(公告)日：2023-11-02

申请号：US17759153

申请日：2020-02-13

Applicant: NTT DOCOMO, INC.

Inventor： Yuichi Kakishima ,  Hiroki Harada

IPC: H04W16/14

CPC classification number: H04W16/14

Abstract: A terminal includes a reception unit configured to receive a reference signal of a first RAT (Radio Access Technology) and a data signal of a second RAT; and a control unit configured to decode the data signal based on precoder information applied to the reference signal and to the data signal.

公开(公告)号：US20230345555A1

公开(公告)日：2023-10-26

申请号：US18007204

申请日：2020-07-30

Applicant: NTT DOCOMO, INC.

Inventor： Daisuke Kurita ,  Hiroki Harada ,  Weiqi Sun ,  Jing Wang ,  Xiaolin Hou

IPC: H04W76/10 ,  H04W72/0453 ,  H04W72/0446

CPC classification number: H04W76/10 ,  H04W72/0453 ,  H04W72/0446 ,  H04W88/08

Abstract: A radio communication node receives resource information indicating a type of resources allocated to a radio link with a lower node from a network and establishes the radio link based on the resource information. The type of resources includes a specific type that can designate availability of a frequency resource in a frequency direction. When the frequency resource is the specific type, the radio communication node can receive the resource information indicating the availability of the frequency resource.

公开(公告)号：US11743094B2

公开(公告)日：2023-08-29

申请号：US16621589

申请日：2017-06-16

Applicant: NTT DOCOMO, INC.

Inventor： Daiki Takeda ,  Hiroki Harada ,  Satoshi Nagata

IPC: H04L27/26 ,  H04W28/06 ,  H04W56/00 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08 ,  H04W88/08 ,  H04B7/08 ,  H04B14/00

CPC classification number: H04L27/2666 ,  H04B7/0811 ,  H04L27/26025 ,  H04W28/06 ,  H04W56/001 ,  H04W72/0446 ,  H04W74/006 ,  H04W74/08 ,  H04W88/08 ,  H04B14/002

Abstract: A base station apparatus communicates with a plurality of user apparatuses and includes a transmitting unit that transmits a plurality of radio signals to the plurality of user apparatuses, and a control unit that arranges a periodic block including a synchronization signal and system information in one or more radio signals of the plurality of radio signals based on a subcarrier spacing of the radio signal.

公开(公告)号：US11716763B2

公开(公告)日：2023-08-01

申请号：US16624024

申请日：2017-06-27

Applicant: NTT DOCOMO, INC.

Inventor： Tomoya Ohara ,  Hiroki Harada

IPC: H04W4/00 ,  H04W74/08 ,  H04W72/0446

CPC classification number: H04W74/0833 ,  H04W72/0446

Abstract: A terminal is disclosed including a receiver that receives configuration information for random access. The terminal also includes a processor that determines a starting symbol position of a random access resource in one or more slots based on the configuration information. The terminal further includes a transmitter that transmits a preamble in a resource starting from the starting symbol position in the one or more slots. In other aspects, a preamble transmission method is also disclosed.

公开(公告)号：US11678352B2

公开(公告)日：2023-06-13

申请号：US17048221

申请日：2019-04-15

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Hideaki Takahashi

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/53 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263 ,  H04W72/23

CPC classification number: H04W72/53 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263 ,  H04W72/23

Abstract: A decrease of a communication throughput is suppressed even when a plurality of radio access technologies (RATS) coexist. A user terminal according to an aspect of the present disclosure includes: a receiving section that receives information on a UL/DL configuration in a second carrier; and a control section that determines start timing of the UL/DL configuration in the second carrier based on an offset between a frame boundary in a first carrier and a frame boundary in the second carrier.

公开(公告)号：US11664918B2

公开(公告)日：2023-05-30

申请号：US16764206

申请日：2017-11-16

Applicant: NTT DOCOMO, INC.

Inventor： Daiki Takeda ,  Kazuki Takeda ,  Hiroki Harada ,  Yousuke Sano

IPC: H04J11/00 ,  H04W72/04 ,  H04W72/23

CPC classification number: H04J11/0069 ,  H04W72/23

Abstract: A terminal is disclosed including a receiver that receives a synchronization signal/physical broadcast channel (SS/PBCH) block including a synchronization signal (SS) and a physical broadcast channel (PBCH); and a processor that determines a control resource set based on configuration information in a configuration information set of a plurality of configuration information sets, the configuration information set being associated with information based on the SS/PBCH block, the configuration information being associated with a value of a field in the PBCH, and the configuration information including a plurality of parameters regarding the control resource set. In other aspects, a radio communication method and a base station are also disclosed.

公开(公告)号：US20230148261A1

公开(公告)日：2023-05-11

申请号：US17911931

申请日：2020-03-19

Applicant: NTT DOCOMO, INC.

Inventor： Daisuke Kurita ,  Hiroki Harada ,  Satoshi Nagata

IPC: H04W72/29 ,  H04W72/0453 ,  H04L27/26

CPC classification number: H04W72/29 ,  H04W72/0453 ,  H04L27/26025

Abstract: A terminal assumes that a control channel is allocated to a low frequency band and a shared channel is allocated to a high frequency band which is higher than the low frequency band.

公开(公告)号：US20230109830A1

公开(公告)日：2023-04-13

申请号：US17913660

申请日：2020-03-23

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Shohei Yoshioka ,  Shinya Kumagai ,  Yuki Matsumura ,  Yuki Takahashi ,  Satoshi Nagata

IPC: H04W72/232 ,  H04L5/00

Abstract: A UE receives downlink control information from a network and schedules a plurality of component carriers using the downlink control information. The UE applies information of a bandwidth part indicated by the downlink control information to the plurality of component carriers.