公开(公告)号：US12069665B2

公开(公告)日：2024-08-20

申请号：US16331636

申请日：2017-09-07

申请人： NTT DOCOMO, INC.

发明人： Hiroki Harada ,  Satoshi Nagata ,  Jing Wang ,  Liu Liu ,  Huiling Jiang

IPC分类号： H04W72/21 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/1268 ,  H04W72/23

CPC分类号： H04W72/21 ,  H04L5/0055 ,  H04W72/0446 ,  H04W72/1268 ,  H04W72/23

摘要： The present invention is designed so that uplink control information such as delivery acknowledgment signals can be transmitted properly, even when UL/DL configurations are changed, in a communication system that is configured to use listening. According to one aspect of the present invention, a user terminal has a receiving section that receives downlink control information and downlink data, a transmission section that transmits a delivery acknowledgment signal in response to the downlink data, and a control section that controls transmission of the delivery acknowledgment signal based on a result of UL listening which is executed before transmission of the delivery acknowledgment signal, and based on information that is contained in the downlink control information and/or timing that is configured in advance on a per DL burst basis.

公开(公告)号：US11778614B2

公开(公告)日：2023-10-03

申请号：US17229214

申请日：2021-04-13

申请人： NTT DOCOMO, INC.

发明人： Kazuki Takeda ,  Satoshi Nagata ,  Shaozhen Guo ,  Lihui Wang ,  Liu Liu ,  Xiaolin Hou ,  Huiling Jiang

IPC分类号： H04W72/00 ,  H04W72/20 ,  H04W72/12 ,  H04W28/04 ,  H04W72/04 ,  H04W72/23

CPC分类号： H04W72/20 ,  H04W28/04 ,  H04W72/04 ,  H04W72/12 ,  H04W72/23 ,  Y02D30/70

摘要： A terminal is disclosed that includes a receiver that receives first downlink control information (DCI) for scheduling initial transmission and second DCI for scheduling retransmission and a processor that controls transmission of a first uplink (UL) shared channel that is scheduled by the first DCI and transmission of a second UL shared channel that is scheduled by the second DCI. The processor controls the transmission of the first UL shared channel and the transmission of the second UL shared channel based on a reference value that is configured for timing for transmitting a UL shared channel based on information provided through higher layer signaling. The processor also controls transmission of the second UL shared channel in response to information included in each of the first DCI and the second DCI that indicates whether the UL shared channel includes initially transmitted data.

公开(公告)号：US11696306B2

公开(公告)日：2023-07-04

申请号：US17366767

申请日：2021-07-02

申请人： NTT DOCOMO, INC.

发明人： Kazuki Takeda ,  Satoshi Nagata ,  Qin Mu ,  Liu Liu ,  Huiling Jiang

IPC分类号： H04W72/23 ,  H04W72/0446

CPC分类号： H04W72/23 ,  H04W72/0446

摘要： An apparatus is disclosed that includes a receiver that receives downlink control information that is used for scheduling of a downlink shared channel, via a downlink control channel in a control resource set. The apparatus also includes a processor that determines a starting location in a time domain of the downlink shared channel based on the downlink control information. The apparatus further includes an output device that performs output based on downlink data signal in the downlink shared channel. When the downlink shared channel overlaps with the control resource set, a resource to which the downlink control information is mapped is not available for the downlink shared channel and wherein a field value in the downlink control information indicates an index for designating one of a plurality of starting locations that are provided in advance. In another aspect, a system is also disclosed.

公开(公告)号：US20230199688A1

公开(公告)日：2023-06-22

申请号：US17926843

申请日：2020-05-22

申请人： NTT DOCOMO, INC.

发明人： Jing Wang ,  Xiaolin Hou ,  Lan Chen ,  Liu Liu ,  Yong Li ,  Tianjia Wang

IPC分类号： H04W56/00

CPC分类号： H04W56/0045 ,  H04W56/006

摘要： The present disclosure provides a terminal and a method performed by the terminal. The terminal is in a communication system, including: a receiving unit that receives timing advance information indicating a first timing advance amount; and a processing unit that acquires a location of the terminal, determines a timing offset based on the location, and determines a terminal-specific timing advance amount based on the first timing advance amount and the timing offset.

公开(公告)号：US11516787B2

公开(公告)日：2022-11-29

申请号：US16634324

申请日：2017-07-28

申请人： NTT DOCOMO, INC.

发明人： Kazuki Takeda ,  Satoshi Nagata ,  Qin Mu ,  Liu Liu

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04W8/24 ,  H04W48/12

摘要： To appropriately communicate a control channel even when communication is performed by applying a configuration of the control channel different from those of legacy LTE systems, a user terminal according to the present invention includes: a reception section that receives a downlink control channel transmitted by each of a plurality of control resource sets; and a control section that controls monitoring of a downlink control channel candidate, and the control section controls allocation of a number of downlink control channel candidates to each of the control resource sets assuming that the number of downlink control channel candidates configured to a combination of the control resource sets in a given time unit does not exceed terminal capability.

公开(公告)号：US11469926B2

公开(公告)日：2022-10-11

申请号：US16981842

申请日：2018-05-11

申请人： NTT DOCOMO, INC.

发明人： Dongbo Feng ,  Xiangming Li ,  Neng Ye ,  Wenjia Liu ,  Xiaolin Hou ,  Runxin Wang ,  Liu Liu

IPC分类号： H04L25/02 ,  H04L5/00 ,  H04W24/10

摘要： Provided are a method for transmitting signals and corresponding terminals, and base stations, where the method for transmitting signals is performed by a terminal in a communication system. The method includes determining, whether to transmit an additional reference signal to a base station in the communication system according to information on channel conditions of the terminal; transmitting a main reference signal to the base station, where the main reference signal is used for channel estimation between the terminal and the base station; and when determining to transmit an additional reference signal to the base station, transmitting an additional reference signal to the base station according to configuration information of the additional reference signal.

公开(公告)号：US11457493B2

公开(公告)日：2022-09-27

申请号：US16760327

申请日：2017-11-02

申请人： NTT DOCOMO, INC.

发明人： Hiroki Harada ,  Satoshi Nagata ,  Jing Wang ,  Liu Liu

IPC分类号： H04W76/19 ,  H04B7/0491 ,  H04W76/38

摘要： In order to control communication operations properly in a secondary cell even when a beam failure and/or a BR failure occur in the secondary cell, a user terminal, according to one aspect of the present disclosure, has a control section that controls adjustment of a deactivation timer for a certain secondary cell and/or indication of a beam failure and/or a beam recovery (BR) failure in the certain secondary cell, based on the beam failure and/or a result of BR in the certain secondary cell, and a transmission section that transmits information about the beam failure and/or the BR failure in the certain secondary cell by using another cell.

公开(公告)号：US11330424B2

公开(公告)日：2022-05-10

申请号：US16930662

申请日：2020-07-16

申请人： NTT DOCOMO, INC.

发明人： Hiroki Harada ,  Satoshi Nagata ,  Liu Liu ,  Lihui Wang ,  Huiling Jiang

IPC分类号： H04W8/22 ,  H04W16/14 ,  H04W72/04 ,  H04W72/14 ,  H04W74/08 ,  H04W74/00

摘要： A terminal is disclosed including a processor that controls a period to hold an uplink control information (UCI) based on information provided by a downlink control information (DCI) and a transmitter that transmits multiple UCIs, including the UCI held in the period, together. In other aspects, a radio communication method for a terminal and a base station are also disclosed.

公开(公告)号：US11284401B2

公开(公告)日：2022-03-22

申请号：US16483303

申请日：2018-02-02

申请人： NTT DOCOMO, INC.

发明人： Kazuki Takeda ,  Satoshi Nagata ,  Qin Mu ,  Xu Zhang ,  Liu Liu ,  Huiling Jiang

IPC分类号： H04W72/04 ,  H04B7/0456 ,  H04L5/00 ,  H04L5/10 ,  H04W72/12

摘要： The present invention is designed to reduce the deterioration of communication quality and so on even when communication is performed by applying different configurations than in existing LTE systems. A receiving section that receives a downlink control channel, and a control section that controls receipt of the down link control channel, are provided, the downlink control channel is transmitted using downlink control channel elements including a plurality of resource element groups (REGs), and the control section controls receiving processes per REG group comprised of a plurality of REGs.

公开(公告)号：US20210409988A1

公开(公告)日：2021-12-30

申请号：US16613917

申请日：2017-05-16

申请人： NTT DOCOMO, INC.

发明人： Hiroki Harada ,  Satoshi Nagata ,  Jing Wang ,  Liu Liu ,  Weiqi Sun ,  Yong Li

IPC分类号： H04W24/10 ,  H04L5/00

摘要： RRM measurement is conducted appropriately. According to one aspect of the present invention, a user terminal has a receiving section that receives information about a measurement gap pattern for use in measurement of a plurality of synchronization signal blocks, and a measurement section that measures the synchronization signal blocks in a measurement gap.