公开(公告)号：US10966250B2

公开(公告)日：2021-03-30

申请号：US16324487

申请日：2017-08-09

Applicant: NTT DOCOMO INC.

Inventor： Yu Jiang ,  Liu Liu ,  Jing Wang ,  Huiling Jiang ,  Satoshi Nagata

IPC: H04W74/08 ,  H04W52/02 ,  H04W72/12 ,  H04W72/04 ,  H04W72/10 ,  H04W74/00

Abstract: Provided are a method used for indicating and determining a parameter value of Listen-Before-Talk (LBT) parameters, a base station and a user equipment, the method including: determining a parameter value of LBT parameters, the LBT parameters including an LBT type, an LBT priority, and a start position of a physical uplink shared channel PUSCH; determining an index for carrying out joint indication of the LBT parameters on the basis of a subset of a full set which is formed by combining possible parameter values of each LBT parameter; generating downlink control information including the index; and sending the downlink control information to a user equipment.

公开(公告)号：US10952237B2

公开(公告)日：2021-03-16

申请号：US16495382

申请日：2018-03-07

Applicant: NTT DOCOMO, INC.

Inventor： Liu Liu ,  Qin Mu ,  Jing Wang ,  Lihui Wang ,  Huiling Jiang ,  Xiaohong Zhang ,  Yong Li

IPC: H04W4/00 ,  H04W72/12 ,  H04L1/00

Abstract: The present disclosure provides a downlink control information transmission method, including generating more than one downlink control information (DCI) according to scheduling information of a user equipment (UE); determining a detection order of the more than one DCI and positions of the more than one DCI in a searching space; adding a position indication field to a respective DCI according to the detection order of the more than one DCI and the positions of the more than one DCI in the searching space; wherein, the position indication field is used to indicate a position of a next DCI of the respective DCI in the detection order; in which, a position indication field in a last DCI in the detection order is used to indicate a position of a first DCI in the detection order; and transmitting the more than one DCI in the searching space according to the positions of the more than one DCI in the searching space. The present disclosure also provides a UE-side method, a corresponding base station and a UE.

公开(公告)号：US10931407B2

公开(公告)日：2021-02-23

申请号：US16089551

申请日：2017-03-30

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Satoshi Nagata ,  Yu Jiang ,  Liu Liu ,  Huiling Jiang

IPC: H04L1/18 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04L1/16 ,  H04W72/14

Abstract: In scheduling transmission of UL data in a plurality of subframes using single DCI, asynchronous re-transmission control of this UL data is appropriately performed. A user terminal according to an aspect of the present invention includes a receiving section that receives downlink control information (DCI) and a control section that controls transmission of an uplink shared channel in each of a plurality of subframes based on the DCI. The control section determines an HARQ process number (HPN) to use in each of the plurality of subframes based on a HPN field included in the DCI.

公开(公告)号：US10893507B2

公开(公告)日：2021-01-12

申请号：US16326350

申请日：2017-08-17

Applicant: NTT DOCOMO, INC.

Inventor： Qin Mu ,  Liu Liu ,  Xiaohang Chen ,  Anxin Li ,  Huiling Jiang ,  Satoshi Nagata

IPC: H04W4/00 ,  H04W72/02 ,  H04L1/18 ,  H04L1/00 ,  H04W72/04 ,  H04W88/02

Abstract: A method for notifying a repetition pattern of uplink data, a method for determining a repetition pattern of uplink data, and a corresponding user equipment (UE) and base station are provided, wherein the base station is notified of a repetition pattern selected by the UE, so that the base station can correctly determine a transmitting timing of feedback information, thereby preventing a problem in which a transmitting timing of expected feedback information of the UE is inconsistent with the transmitting timing of the feedback information determined by the base station.

公开(公告)号：US10779316B2

公开(公告)日：2020-09-15

申请号：US16089152

申请日：2017-03-30

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Satoshi Nagata ,  Lihui Wang ,  Liu Liu ,  Huiling Jiang

IPC: H04W56/00 ,  H04W72/12 ,  H04W16/14 ,  H04W74/08 ,  H04L5/00 ,  H04W72/04 ,  H04L1/16 ,  H04L25/02 ,  H04W88/06

Abstract: The present invention is designed to realize appropriate reporting of information about the allocation of UL signals. A user terminal has a receiving section that receives downlink control information including uplink resource allocation information, a control section that determines, based on the uplink resource allocation information, a resource block (RB) allocation pattern that is repeated every given-number of resource blocks, and a transmitting section that transmits a UL signal by using a plurality of resource blocks that are determined based on the RB allocation pattern.

公开(公告)号：US20200267687A1

公开(公告)日：2020-08-20

申请号：US16647421

申请日：2017-09-22

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Satoshi Nagata ,  Jing Wang ,  Liu Liu

IPC: H04W68/00 ,  H04W72/04

Abstract: There is provision of a user device communicable with a base station in a wide area carrier including multiple partial carriers. The user device includes a receiving unit configured to receive system information and paging from the base station, and a monitoring unit configured to identify a partial carrier among the multiple partial carriers on which paging is to be monitored, based on paging configuration information included in the system information, and to monitor paging on the identified partial carrier.

公开(公告)号：US20200170041A1

公开(公告)日：2020-05-28

申请号：US16776019

申请日：2020-01-29

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Hiroki Harada ,  Satoshi Nagata ,  Lihui Wang ,  Liu Liu ,  Huiling Jiang

IPC: H04W74/08 ,  H04W72/12 ,  H04W16/32

Abstract: A user terminal is disclosed that includes a receiver that performs sensing before signal transmission and a transmitter that transmits a Physical Uplink Shared Channel (PUSCH). In addition, the transmitter transmits predetermined information that relates to the transmission of the PUSCH. In other aspects a radio communication method for a user terminal is disclosed.

公开(公告)号：US10609756B2

公开(公告)日：2020-03-31

申请号：US15546326

申请日：2016-01-29

Applicant: NTT DOCOMO, INC.

Inventor： Kazuaki Takeda ,  Liu Liu ,  Huiling Jiang ,  Qin Mu

IPC: H04L5/00 ,  H04W76/27 ,  H04W72/02 ,  H04W4/06 ,  H04W28/02 ,  H04W68/00 ,  H04W72/10 ,  H04W72/12 ,  H04W74/00

Abstract: The present invention is designed so that a plurality of channels can be received adequately even when the bandwidth to use is limited to a narrowband which is a part of a system bandwidth. A user terminal, in which the bandwidth to use is limited to the narrowband which is a part of the system bandwidth, has a receiving section that receives a broadcast transport block and a unicast transport block, and a control section that switches the transport block to receive depending on the RRC mode of the user terminal, and, when the receiving section receives both the broadcast transport block and the unicast transport block and the user terminal is in the RRC-connected mode, the control section exerts control so that the unicast transport block is received, based on priorities that are determined in advance.

公开(公告)号：US10524238B2

公开(公告)日：2019-12-31

申请号：US15573310

申请日：2016-05-13

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Tooru Uchino ,  Satoshi Nagata ,  Lihui Wang ,  Liu Liu ,  Huiling Jiang

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12

Abstract: According to the present invention, periodic CSI reporting that is suitable for use when the number of component carriers that can be configured per user terminal is expanded more than in existing systems can be implemented. According to the present invention, a user terminal has a transmission section that transmits channel state information periodically, and a control section that controls the transmission of the channel state information, and the control section controls the transmission of a plurality of channel state information using a PUCCH format which can use a plurality of resource blocks and/or which has a smaller spreading factor than the spreading factor of PUCCH format 3.

公开(公告)号：US10470066B2

公开(公告)日：2019-11-05

申请号：US15024865

申请日：2014-09-04

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Liu Liu ,  Qin Mu ,  Lan Chen ,  Lihui Wang ,  Yong Li ,  Mugen Peng ,  Wenbo Wang

IPC: H04W24/10 ,  H04L5/00 ,  H04W72/04 ,  H04W84/04

Abstract: The present invention is designed so that, in a radio communication system in which a plurality of component carriers (CCs) are used in each small cell within a macro cell, the load of measurements, the amount of information to report and so on in user terminals are reduced. The macro base station of the present invention transmits, to a user terminal, measurement indication information that includes a measurement indication for the received power of a measurement signal of a specific CC in each small cell, and receives, from the user terminal, a measurement report that includes the received power of the measurement signal of the specific CC. Also, the macro base station calculates the received quality of the measurement signals of the plurality of CCs based on the received power of the measurement signal of the specific CC.