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公开(公告)号：US20210184819A1
公开(公告)日：2021-06-17
申请号：US17270295
申请日：2018-08-27
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
摘要： A user terminal includes: a transmitting section that transmits a plurality of uplink shared channels associated with a plurality of transmission and reception points; and a control section that multiplexes a plurality of pieces of channel state information associated with the plurality of transmission and reception points in the plurality of uplink shared channels. When repetitions of uplink shared channel are transmitted to a plurality of TRPs, CSI is appropriately reported.
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公开(公告)号：US20210168836A1
公开(公告)日：2021-06-03
申请号：US16610416
申请日：2017-05-02
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Lihui Wang
摘要： In order to control retransmission properly in a communication system that allows applying preemption to scheduling and/or controlling retransmission in smaller units than TBs, a user terminal, according to one aspect of the present invention, has a receiving section that receives a transport block (TB) comprising one or more code block groups (CBGs), a transmission section that transmits a delivery acknowledgment signal in response to the TB and/or the CBGs, and a control section that controls a receiving process and/or a transmission process for the delivery acknowledgment signal based on whether or not communication control based on the CBGs is reported and whether or not communication control based on preemption indication for the TB and/or the CBGs is reported.
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公开(公告)号：US20210168012A1
公开(公告)日：2021-06-03
申请号：US17047959
申请日：2018-04-16
申请人： NTT DOCOMO, INC.
发明人： Yuki Matsumura , Kazuki Takeda , Satoshi Nagata
摘要： In order to appropriately transmit uplink control information and a DMRS using at least an uplink shared channel, one aspect of the user terminal of the present disclosure includes a transmitting section that transmits uplink control information and a demodulation reference signal (DMRS) using an uplink shared channel set to one or more symbols, and a control section that controls transmission of the DMRS using a specific DMRS configuration.
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公开(公告)号：US11018920B2
公开(公告)日：2021-05-25
申请号：US16473965
申请日：2017-12-01
申请人： NTT DOCOMO, INC.
发明人： Keisuke Saito , Kazuaki Takeda , Kazuki Takeda , Satoshi Nagata
摘要： In user terminal 20, reception section 202 and signal separation section 204 receive a data signal and a demodulation reference signal mapped to a downlink resource, and demodulation and decoding section 208 uses the demodulation reference signal to demodulate the data signal. A correction reference signal is mapped to the downlink resource according to a parameter related to user terminal 20 signaled to user terminal 20. Reception section 202 and signal separation section 204 specify a mapping pattern of the correction reference signal based on the parameter, and demodulation and decoding section 208 uses the correction reference signal to demodulate the data signal.
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公开(公告)号：US20210153279A1
公开(公告)日：2021-05-20
申请号：US16622152
申请日：2017-06-13
申请人： NTT DOCOMO, INC.
发明人： Kazuaki Takeda , Kazuki Takeda , Tooru Uchino , Satoshi Nagata
摘要： The present invention is designed so that, in a non-stand-alone radio communication system, multiple UL signals of varying RATs are transmitted properly. According to the present invention, a user terminal has a transmission section that transmits both a first uplink (UL) signal of a first radio access technology (RAT) and a second UL signal of a second RAT, or a single UL signal in which the first UL signal and the second UL signal are multiplexed, by using a UL carrier of the first RAT, and a control section that controls frequency division multiplexing and/or time division multiplexing of the first UL signal and the second UL signal in the UL carrier, or multiplexing of the first UL signal and the second UL signal in the single UL signal.
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公开(公告)号：US20210153204A1
公开(公告)日：2021-05-20
申请号：US17045084
申请日：2018-04-04
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Shaozhen Guo , Xiaolin Hou
摘要： A terminal is disclosed including a receiver that receives downlink control information for releasing a semi-persistent scheduling (SPS) of a downlink shared channel; and a processor, wherein if reception of no more than one unicast downlink shared channel per slot is supported by the terminal, a semi-static Hybrid automatic Repeat request Acknowledgement (HARQ-ACK) codebook is configured, and the SPS is configured, then the processor generates one HARQ-ACK bit for reception of the downlink control information. In other aspects, a radio communication method and a radio base station are also disclosed.
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公开(公告)号：US11013035B2
公开(公告)日：2021-05-18
申请号：US16098997
申请日：2017-05-01
申请人： NTT DOCOMO, INC.
发明人： Kazuaki Takeda , Kazuki Takeda , Satoshi Nagata , Hiroki Harada
摘要： The present invention is designed so that retransmission control and/or division transmission are executed properly when contention-based UL transmission is used. A transmission section that transmits UL data, and a control section that controls retransmission and/or division transmission of the UL data are provided, and the control section exerts control to perform new UL data transmission before the retransmission and/or initial transmission in the division transmission without UL grant from a radio base station, and the control section controls the retransmission and/or second and subsequent transmissions in the division transmission based on a response signal from the radio base station.
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公开(公告)号：US20210144714A1
公开(公告)日：2021-05-13
申请号：US16622678
申请日：2017-06-15
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Qin Mu , Liu Liu
摘要： According to the present invention, when communication is carried out using different formats from those of existing LTE systems, control channels can be communicated properly. A user terminal, according to one aspect of the present invention, includes a receiving section that receives a DL control channel, and a control section that controls monitoring of DL control channel candidates, and the control section determines the aggregation level to monitor and/or the number of DL control channel candidates based on the DCI format and/or the DCI payload size.
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公开(公告)号：US20210136794A1
公开(公告)日：2021-05-06
申请号：US16473767
申请日：2017-12-26
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang
IPC分类号： H04W72/12
摘要： The present invention is designed so that, even when communication is made using a plurality of transmission time intervals (TTIs), scheduling requests are transmitted adequately. According to one aspect of the present invention, a user terminal has a transmitting/receiving section that transmits and/or receives using a plurality of transmission time intervals (TTIs) of different durations, and a control section that determines a resource to use to transmit a scheduling request (SR) based on at least one of a first TTI and a second TTI having a shorter TTI duration than the first TTI.
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公开(公告)号：US20210126742A1
公开(公告)日：2021-04-29
申请号：US17047612
申请日：2019-04-15
申请人： NTT DOCOMO, INC.
发明人： Shohei Yoshioka , Yuki Matsumura , Kazuki Takeda , Satoshi Nagata
摘要： A user terminal includes: a transmitting section that transmits an uplink signal before connection establishment; and a control section that controls a repeated transmission of the uplink signal based on configuration information reported implicitly. According to an aspect of the present disclosure, repeated transmission before connection establishment is appropriately controlled.
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