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公开(公告)号：US11553514B2
公开(公告)日：2023-01-10
申请号：US16982218
申请日：2018-03-22
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Huiling Li , Lihui Wang , Chongning Na , Xin Wang , Xiaolin Hou
摘要： To appropriately control UL transmission such as a CSI reporting when performing communication by applying a different configuration from those of legacy LTE systems, a user terminal according to one aspect of the present disclosure includes: a transmission section that transmits one or more UL signals by using an uplink shared channel based on an instruction from a base station; and a control section that controls the transmission assuming that transmission durations of a plurality of UL signals do not overlap in a same symbol, or, when at least part of the transmission durations of the plurality of UL signals overlap in the same symbol, performs control to select and transmit the part of the UL signals.
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公开(公告)号：US11229020B2
公开(公告)日：2022-01-18
申请号：US16762039
申请日：2017-11-10
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Huiling Li , Xiaolin Hou , Chongning Na
摘要： To appropriately control CSI reporting in a case where a configuration different from the configurations in the existing LTE systems is employed for communication, a user terminal includes a receiving section that receives information indicating whether to activate or deactivate channel state information reporting, in at least one of first downlink control information indicating UL transmission specifically to the user terminal, second downlink control information indicating the UL transmission to a plurality of user terminals, and MAC control information, and a control section that controls reporting of channel state information, based on the information indicating whether to activate or deactivate the channel state information reporting.
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公开(公告)号：US20210297137A1
公开(公告)日：2021-09-23
申请号：US16317994
申请日：2017-08-10
申请人： NTT DOCOMO, INC.
发明人： Satoshi Nagata , Huiling Li , Chongning Na , Huiling Jiang , Yuichi Kakishima
摘要： The present invention provides a user terminal that reports channel state information to base station apparatus in order to reduce the overhead of signaling required in beam measurements and to lower the complexity of beam measurements and calculation, and, in this user terminal, a receiving section that receives basis beam reference signals, each included in one or a plurality of basis beams transmitted from the base station, a determining section that determines a leading beam and a secondary beam to combine with the leading beam, based on the basis beam reference signals received, and a transmission section that transmits combination information about combination of the leading beam and the secondary beam to the base station apparatus, are provided.
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公开(公告)号：US20210029733A1
公开(公告)日：2021-01-28
申请号：US16982218
申请日：2018-03-22
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Huiling Li , Lihui Wang , Chongning Na , Xin Wang , Xiaolin Hou
IPC分类号： H04W72/12
摘要： To appropriately control UL transmission such as a CSI reporting when performing communication by applying a different configuration from those of legacy LTE systems, a user terminal according to one aspect of the present disclosure includes: a transmission section that transmits one or more UL signals by using an uplink shared channel based on an instruction from a base station; and a control section that controls the transmission assuming that transmission durations of a plurality of UL signals do not overlap in a same symbol, or, when at least part of the transmission durations of the plurality of UL signals overlap in the same symbol, performs control to select and transmit the part of the UL signals.
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公开(公告)号：US20200007213A1
公开(公告)日：2020-01-02
申请号：US16482934
申请日：2018-02-01
申请人： NTT DOCOMO, INC.
发明人： Yuichi Kakishima , Chongning Na , Huiling Li , Huiling Jiang , Satoshi Nagata
摘要： A method of Channel State Information (CSI) reporting in a wireless communication system includes performing, with a user equipment (UE), advanced CSI reporting based on a high resolution CSI feedback scheme. The advanced CSI reporting includes a beam index that identifies each of beams and amplitude of the beam corresponding to the beam index. The performing performs the advanced CSI reporting using a Physical Uplink Control Channel (PUCCH) format 3/4/5. The beam index and the amplitude are located in the PUCCH format 3/4/5. The performing performs first advanced CSI reporting and performs second advanced CSI reporting after performing the first advanced CSI reporting. The first advanced CSI reporting includes one of the beam index and the amplitude. The second advanced CSI reporting includes the beam index or the amplitude that is not included in the first advanced CSI reporting.
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公开(公告)号：US11350441B2
公开(公告)日：2022-05-31
申请号：US17255255
申请日：2018-06-28
申请人： NTT DOCOMO, INC.
发明人： Yuki Matsumura , Satoshi Nagata , Jing Wang , Huiling Li , Xiaolin Hou
摘要： In order to appropriately configure a Hybrid Automatic Repeat Request (HARQ) process even when communication is performed using a plurality of transmission points, one aspect of a user terminal of the present disclosure includes: a receiving section that receives one or more pieces of downlink control information used for scheduling of downlink shared channels, which are transmitted from a plurality of transmission points, by monitoring a downlink control channel; and a control section that detects a HARQ process number, which is indicated by a HARQ process number field included in the downlink control information and which is managed by one or more independent HARQ entities for each cell.
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公开(公告)号：US20210227513A1
公开(公告)日：2021-07-22
申请号：US17048488
申请日：2018-03-14
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Shohei Yoshioka , Satoshi Nagata , Lihui Wang , Huiling Li , Xiaolin Hou
IPC分类号： H04W72/04
摘要： A user terminal includes: a receiving section that receives downlink control information for instructing activation or deactivation of a semi-persistent channel state information reporting; and a control section that determines whether or not the downlink control information instructs the deactivation based on a value of at least one field including a frequency domain resource allocation field of the downlink control information.
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公开(公告)号：US20210127416A1
公开(公告)日：2021-04-29
申请号：US17255255
申请日：2018-06-28
申请人： NTT DOCOMO, INC.
发明人： Yuki Matsumura , Satoshi Nagata , Jing Wang , Huiling Li , Xiaolin Hou
摘要： In order to appropriately configure a Hybrid Automatic Repeat Request (HARQ) process even when communication is performed using a plurality of transmission points, one aspect of a user terminal of the present disclosure includes: a receiving section that receives one or more pieces of downlink control information used for scheduling of downlink shared channels, which are transmitted from a plurality of transmission points, by monitoring a downlink control channel; and a control section that detects a HARQ process number, which is indicated by a HARQ process number field included in the downlink control information and which is managed by one or more independent HARQ entities for each cell.
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公开(公告)号：US20200295905A1
公开(公告)日：2020-09-17
申请号：US16650929
申请日：2017-09-29
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Yuichi Kakishima , Huiling Li , Chongning Na , Lihui Wang , Xin Wang
IPC分类号： H04L5/00
摘要： To appropriately control UL transmission such as a CSI reporting when communication is performed by applying a different configuration from those of legacy LTE systems, one aspect of a user terminal according to the present invention includes: a transmitting section that transmits first Channel State Information (CSI) and second CSI of different information types to be reported, by using an uplink control channel and/or an uplink shared channel based on timings respectively configured by a base station; and a control section that, when transmission timings of the first CSI and the second CSI overlap, performs control to transmit both or one of the first CSI and the second CSI.
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公开(公告)号：US10651915B2
公开(公告)日：2020-05-12
申请号：US16482866
申请日：2018-02-02
申请人： NTT DOCOMO, INC.
发明人： Kazuaki Takeda , Satoshi Nagata , Chongning Na , Huiling Li , Huiling Jiang , Yuichi Kakishima
摘要： The present invention is designed to suitably mitigate the decrease in communication throughput even when type-II feedback is used. According to one aspect of the present invention, a user terminal has a control section that determines a beam pattern that shows a fixed set of beams, and determines at least one beam that is not included in the beam pattern; and a transmission section that transmits feedback information related to the beam pattern and the at least one beam that is determined.
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