公开(公告)号：US20200374909A1

公开(公告)日：2020-11-26

申请号：US16637138

申请日：2017-08-09

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Shaozhen Guo ,  Lihui Wang ,  Xiaolin Hou

IPC: H04W72/12 ,  H04W72/04

Abstract: To adequately control, even in a case that an Unknown resource is included within a time/frequency resource in which data channel is scheduled, transmission and/or reception of the data channel. A user terminal according to the present invention includes a receiving section that receives first downlink control information (DCI) indicating a Unknown resource in which transmission and/or reception the user terminal should not assume, and a control section that controls, in a case that at least a part of a time and/frequency resource in which data channel is scheduled according to second downlink control information (DCI) collides with the Unknown resource, reception and/or transmission of the data channel in the time and/or frequency resource.

公开(公告)号：US20200344100A1

公开(公告)日：2020-10-29

申请号：US16960737

申请日：2018-01-11

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Kazuki Takeda ,  Satoshi Nagata

IPC: H04L27/26 ,  H04W72/04 ,  H01J13/18

Abstract: A terminal is disclosed that includes a processor that determines a cyclic shift based on a cyclic shift index associated with an orthogonal cover code index configured by a higher layer and a transmitter that transmits on an uplink control channel, uplink control information to which an orthogonal cover code associated with the orthogonal cover code index is applied. The transmitter further transmits, within a resource block assigned for the uplink control channel, a demodulation reference signal using a reference signal sequence having the cyclic shift. In other aspects, a radio control method for a terminal and a base station are also disclosed.

公开(公告)号：US10805911B2

公开(公告)日：2020-10-13

申请号：US16346777

申请日：2017-11-01

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Kazuki Takeda ,  Satoshi Nagata

IPC: H04W72/04 ,  H04L1/18 ,  H04L27/26

Abstract: The present invention is designed so that control information for a receiving apparatus can be reported properly in the UL/DL of future radio communication systems. A transmitting apparatus, according to the present invention, has a control section that controls generation of a reference signal using an amount of phase rotation and/or a base sequence that are associated with control information for a receiving apparatus, and a transmission section that transmits the reference signal.

公开(公告)号：US20200322842A1

公开(公告)日：2020-10-08

申请号：US16906113

申请日：2020-06-19

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Xiaolin Hou ,  Huiling Jiang ,  Xin Wang

IPC: H04W28/06 ,  H04W72/04 ,  H04L1/16 ,  H04L5/00 ,  H04L5/14

Abstract: A terminal is disclosed that includes a receiver that performs, using a first time interval or a second time interval, a receiving process for downlink control information indicating a transmission direction per given time interval and a processor that determines the transmission direction based on the downlink control information. In other aspects, a radio communication method is also disclosed.

公开(公告)号：US20200305187A1

公开(公告)日：2020-09-24

申请号：US16088780

申请日：2017-03-30

Applicant: NTT DOCOMO, INC.

Inventor： Kazuaki Takeda ,  Yousuke Sano ,  Kazuki Takeda ,  Satoshi Nagata ,  Qin Mu ,  Liu Liu

IPC: H04W74/00 ,  H04W74/08 ,  H04W72/12

Abstract: A user equipment is disclosed including a processor that selects a parameter set from a parameter set group generated by grouping radio parameters used for transmission of an uplink signal or reception of a downlink signal, and selects a radio parameter to be applied to the uplink signal or the downlink signal from the selected parameter set, and a transceiver that performs the transmission of the uplink signal or the reception of the downlink signal using the selected radio parameter.

公开(公告)号：US20200305123A1

公开(公告)日：2020-09-24

申请号：US16088423

申请日：2017-03-27

Applicant: NTT DOCOMO, INC.

Inventor： Kazuaki Takeda ,  Yousuke Sano ,  Kazuki Takeda ,  Satoshi Nagata

IPC: H04W72/00 ,  H04W56/00 ,  H04B1/7143 ,  H04W88/06 ,  H04W8/24 ,  H04W72/04 ,  H04L1/00

Abstract: The present invention is designed to make it possible to acquire broadcast information in a suitable manner. According to one aspect of the present invention, a user terminal has a receiving section that receives a synchronization signal and a broadcast signal, and a control section that specifies a frequency hopping pattern that is applied to the broadcast signal based on the synchronization signal.

公开(公告)号：US20200296768A1

公开(公告)日：2020-09-17

申请号：US16890516

申请日：2020-06-02

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Hiroki Harada

IPC: H04W74/08 ,  H04W16/14 ,  H04L5/00 ,  H04L27/00 ,  H04L25/02 ,  H04W72/04 ,  H04W72/14

Abstract: A terminal is disclosed that includes a transmitter that transmits a physical uplink shared channel (PUSCH) and a measurement reference signal (sounding reference signal (SRS)) and a processor that performs sensing and controls to contiguously transmit the PUSCH and the SRS after the sensing. In other aspects, a radio communication method and a base station are disclosed.

公开(公告)号：US20200296714A1

公开(公告)日：2020-09-17

申请号：US16754928

申请日：2018-10-09

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Kazuki Takeda ,  Satoshi Nagata

IPC: H04W72/04 ,  H04L1/00

Abstract: To properly transmit multiple uplink control information. A user terminal includes: a control section that controls first coding of coding at least one of multiple uplink control information, and concatenating multiple information obtained from the first coding, and second coding of coding the concatenated information; and a transmitting section that transmits information obtained from the second coding using an uplink control channel.

公开(公告)号：US20200295913A1

公开(公告)日：2020-09-17

申请号：US16763117

申请日：2017-11-16

Applicant: NTT DOCOMO, INC.

Inventor： Kazuaki Takeda ,  Kazuki Takeda ,  Satoshi Nagata

IPC: H04L5/14 ,  H04W72/04 ,  H04L5/00

Abstract: A user terminal is disclosed including a transmitting/receiving section that performs transmission and reception by Time Division Duplex (TDD) by using a DL/UL frequency band pair that has a UL frequency band and a DL frequency band configured in a frequency direction in a carrier; and a control section that performs control to switch between a first DL/UL frequency band pair and a second DL/UL frequency band pair, and performs the transmission and the reception. In another aspect, a radio communication method of a user terminal is also disclosed.

公开(公告)号：US20200288438A1

公开(公告)日：2020-09-10

申请号：US16644854

申请日：2017-09-07

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Lihui Wang ,  Xiaolin Hou

IPC: H04W72/04

Abstract: A user terminal according to one aspect includes: a transmission section that transmits UL data without a UL transmission indication from a radio base station; and a control section that repeatedly transmits the UL data based on a number of times of repeated transmission, and the control section controls whether or not to count the number of times of repeated transmission based on a radio resource type allocated to the repeated transmission. According to this one aspect, it is possible to appropriately perform UL grant-free repeated transmission, and improve performance and reliability of radio communication.