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公开(公告)号：US20210282089A1
公开(公告)日：2021-09-09
申请号：US17257781
申请日：2018-07-06
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Ryosuke Osawa , Satoshi Nagata , Lihui Wang , Xiaolin Hou
Abstract: In order to appropriately apply a certain DCI format and a TPC command included in the certain DCI format in future radio communication systems, an aspect of a user terminal according to the present disclosure includes a receiving section that receives downlink control information (DCI) including a transmit power control (TPC) command applied to uplink transmission on one or more component carriers, and a control section that monitors the DCI in a certain component carrier to which a monitoring operation on the DCI is indicated.
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公开(公告)号：US20210235436A1
公开(公告)日：2021-07-29
申请号：US17229214
申请日：2021-04-13
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Shaozhen Guo , Lihui Wang , Liu Liu , Xiaolin Hou , Huiling Jiang
Abstract: 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.
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公开(公告)号：US11071068B2
公开(公告)日：2021-07-20
申请号：US16333078
申请日：2017-09-13
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang
Abstract: The present invention is designed so that proper power headroom reports (PHRs) can be transmitted as feedback even when shortened processing time and/or shortened transmission time intervals (TTIs) are used. According to one aspect of the present invention, a user terminal has a transmission section that transmits an uplink signal in a shortened transmission time interval (sTTI) in a given carrier, and a control section that controls generation and transmission of a power headroom report (PHR) based on a power headroom (PH) of one or more sTTIs.
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公开(公告)号：US20210219271A1
公开(公告)日：2021-07-15
申请号：US17058916
申请日：2018-06-01
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
Abstract: A user terminal includes a receiving section configured to receive first downlink control information for activation of a first channel following periodicity configured by a higher layer and receive second downlink control information for scheduling retransmission of the first channel, and a control section configured to apply a given parameter among first configuration information indicating a configuration for the first channel, second configuration information indicating a configuration for a second channel with periodicity not configured by a higher layer, and the second downlink control information, to the retransmission.
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公开(公告)号：US11057931B2
公开(公告)日：2021-07-06
申请号：US16087831
申请日：2017-03-29
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang
Abstract: The present invention is designed to perform random access procedures adequately in a carrier in which LBT (Listen Before Talk) is configured. A user terminal, according to one aspect of the present invention, has a control section that controls random access procedures for a carrier where listening is performed before uplink transmission, a receiving section that receives downlink control information including information about a period that is formed with a plurality of transmission time intervals (TTIs) in which a random access preamble can be transmitted, and a transmission section that transmits the random access preamble in the period, in the carrier, in response to receipt of the downlink control information.
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Patent Agency Ranking
公开(公告)号：US20210194622A1
公开(公告)日：2021-06-24
申请号：US17263750
申请日：2018-07-30
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Shohei Yoshioka , Satoshi Nagata , Lihui Wang , Xiaolin Hou
IPC: H04L1/00
Abstract: To appropriately control communication even when at least one of an MCS table, a CQI table and an RNTI different from those of legacy LTE systems is introduced, a user terminal according to one aspect of the present disclosure includes: a transmission section that transmits Channel State Information (CSI) by using at least one of a first Channel Quality Indicator (CQI) table and a second CQI table in which a code rate lower than a minimum code rate specified in the first CQI table has been specified; and a control section that, when a CQI table is configured separately per cell, controls the transmission of the CSI by assuming that different CQI tables are not configured to a plurality of cells included in a given group or prioritizing one of first CSI based on the first CQI table and second CSI based on the second CQI table.
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公开(公告)号：US20210185650A1
公开(公告)日：2021-06-17
申请号：US17189805
申请日：2021-03-02
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Kazuaki Takeda , Satoshi Nagata , Qin Mu , Lihui Wang
Abstract: A terminal is disclosed including a receiver that monitors downlink control channel candidates in a predetermined frequency bandwidth out of a plurality of frequency bandwidths; and a processor that performs a control to change the predetermined frequency bandwidth in accordance with a predetermined timer. In another aspect, a radio communication method is also disclosed.
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公开(公告)号：US20210119756A1
公开(公告)日：2021-04-22
申请号：US16496255
申请日：2017-03-23
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou , Huiling Jiang
Abstract: To control UL transmission properly even when uplink data and demodulation reference signals are transmitted using short TTIs, a user terminal according to one aspect of the present invention has a transmission section that transmits a UL signal and a reference signal for use for demodulating the UL signal, and a control section that controls the allocation of the UL signal and the reference signal, and, when UL signals are allocated to a plurality of contiguous predetermined time intervals (sTTIs), respectively, the control section allocates the UL signal and the reference signal for use for demodulating the UL signal to the same sTTI, at least in an sTTI apart from the top sTTI.
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公开(公告)号：US20210068100A1
公开(公告)日：2021-03-04
申请号：US16962438
申请日：2018-01-19
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
Abstract: When a plurality of transmission methods of an uplink shared channel are supported, transmission of the uplink shared channel is appropriately configured. A user terminal includes: reception section that receives configuration information of a first uplink shared channel, a second uplink shared channel and a third uplink shared channel via a higher layer signaling, the first uplink shared channel being scheduled by the higher layer signaling, the second uplink shared channel being scheduled by the higher layer signaling and triggered by downlink control information, and the third uplink shared channel being scheduled by the downlink control information; and a control section that performs control on transmission of at least one uplink shared channel of the first uplink shared channel, the second uplink shared channel and the third uplink shared channel based on the configuration information, the control being different from that of transmission of other uplink shared channels.
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公开(公告)号：US20210058903A1
公开(公告)日：2021-02-25
申请号：US16969473
申请日：2018-02-13
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
IPC: H04W72/04
Abstract: To appropriately perform data transmission using a certain symbol, one aspect of a user terminal of the present disclosure includes: a transmitting section that transmits an uplink shared channel by using a certain number of symbols; and a control section that performs control such that transmission of the uplink shared channel using one symbol is performed when an allocation type allowing a change of a start position of the uplink shared channel is employed in a case that a plurality of allocation types for a time direction of the uplink shared channel are supported.
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