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51.发明授权公开(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
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.
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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.
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公开(公告)号：US20200059904A1
公开(公告)日：2020-02-20
申请号：US16346380
申请日：2017-10-31
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Kazuaki Takeda , Satoshi Nagata , Qin Mu , Lihui Wang
Abstract: To properly perform communication also in the case of using numerology different from that of the existing LTE system, a user terminal, which changes a frequency bandwidth used in transmission and/or reception of a signal to control communication, has a receiving section that receives first downlink control information transmitted in a first frequency bandwidth, and second downlink control information and/or downlink data transmitted in a second frequency bandwidth having a bandwidth of the first frequency bandwidth or more, and a control section that controls reception of the downlink control information and/or the downlink data transmitted in the second frequency bandwidth, based on the first downlink control information.
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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
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.
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公开(公告)号：US20190044664A1
公开(公告)日：2019-02-07
申请号：US16075529
申请日：2017-02-03
Applicant: NTT DOCOMO, INC.
Inventor： Kazuaki Takeda , Satoshi Nagata , Qin Mu , Liu Liu , Huiling Jiang
Abstract: To appropriately perform communication even when resource allocation is controlled by a frequency unit (for example, a subcarrier unit) that is smaller than a resource allocation unit of an existing LTE system, the present invention provides a user terminal having: a reception unit that receives downlink control information on a downlink control channel included in a given duration in a given bandwidth; and a control unit that controls uplink data transmission based on the downlink control information. The control unit controls start timing of the uplink data transmission with reference to a last subframe in which the downlink control channel is transmitted in the given duration
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Patent Agency Ranking
公开(公告)号：US20190007174A1
公开(公告)日：2019-01-03
申请号：US16075541
申请日：2017-02-03
Applicant: NTT DOCOMO, INC.
Inventor： Kazuaki Takeda , Kazuki Takeda , Satoshi Nagata , Qin Mu
Abstract: Disclosed is to properly perform retransmission control of a downlink signal (e.g., a downlink shared channel) in a future radio communication system. The present invention provides a user terminal comprising a reception section that receives downlink control information and a control section that determines, based on the downlink control information, a single subcarrier that is used for transmission of retransmission control information of a downlink shared channel.
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公开(公告)号：US10136451B2
公开(公告)日：2018-11-20
申请号：US15496968
申请日：2017-04-25
Applicant: NTT DOCOMO, INC.
Inventor： Satoshi Nagata , Qin Mu , Liu Liu , Yu Jiang , Lan Chen
Abstract: In one aspect, the adaptive modulation and coding method includes, in a user terminal, receiving a modulation and coding scheme (MCS) index, acquiring a modulation order corresponding to the received MCS index as a modulation order of a downlink shared channel, from a first table in which MCS indexes are associated with modulation orders including 8 and transport block size (TBS) indexes, and a second table is provided in which MCS indexes are associated with modulation orders of less than 8 and TBS indexes, and the first table is provided by puncturing a combination of a modulation order and a TBS index in the second table so that the first table and the second table are equal in a number of bits for an MCS index. In other aspects, a user terminal and a radio base station are provided.
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公开(公告)号：US20180294927A1
公开(公告)日：2018-10-11
申请号：US15767685
申请日：2016-11-04
Applicant: NTT DOCOMO, INC.
Inventor： Kazuaki Takeda , Satoshi Nagata , Qin Mu , Liu Liu , Huiling Jiang
Abstract: The present invention is designed so that HARQ-ACKs can be transmitted adequately in future radio communication systems. According to one aspect of the present invention, a user terminal has a receiving section that receives a DL signal, and a control section that controls transmission of a delivery acknowledgement signal in response to the DL signal. The receiving section receives information on whether or not transmission of the delivery acknowledgement signal is possible in higher layer signaling and/or in downlink control information, and the control section controls whether or not the delivery acknowledgement signal can be transmitted based on the information on whether or not transmission of the delivery acknowledgement signal is possible.
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公开(公告)号：US20180263061A1
公开(公告)日：2018-09-13
申请号：US15761874
申请日：2016-09-23
Applicant: NTT DOCOMO, INC.
Inventor： Hideyuki Moroga , Kazuaki Takeda , Huiling Jiang , Liu Liu , Qin Mu
CPC classification number: H04W74/0833 , H04L1/1812 , H04L1/189 , H04W72/04 , H04W72/0453 , H04W72/14 , H04W74/08
Abstract: A user terminal is disclosed, where a band to use is limited to a partial narrow band in a system band. The user terminal includes a transmitter that transmits and/or a receiver that receives a signal, and a controller that controls repetitious reception and/or repetitious transmission of a control channel in a random access procedure based on a coverage enhancement level for a random access channel. A radio base station that communicates with a user terminal is also disclosed, where a band to use is limited to a partial narrow band in a system band. The radio base station includes a transmitter that transmits and/or a receiver that receives a signal, and a controller that controls to transmit information to make the user terminal control repetitious reception and/or repetitious transmission of a control channel in a random access procedure based on a coverage enhancement level for a random access channel.
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60.发明申请公开(公告)号：US20180242321A1
公开(公告)日：2018-08-23
申请号：US15752191
申请日：2016-08-10
Applicant: NTT DOCOMO, INC.
Inventor： Kazuaki Takeda , Satoshi Nagata , Qin Mu
IPC: H04W72/04
CPC classification number: H04W72/048 , H04L1/08 , H04L1/1812 , H04L1/1854 , H04L1/1858 , H04L1/189 , H04L5/0007 , H04L5/0051 , H04L5/0055 , H04W4/06 , H04W4/70
Abstract: The present invention is designed so that even users terminals that are limited to using partial narrow bands in a system band as bands for their use can communicate adequately. According to one aspect of the present invention, a user terminal, in which the band to use is limited to a partial narrow band in a system band, has a receiving section that receives a downlink shared channel that is scheduled in a downlink narrow band, a control section that determines a radio resource for an uplink control channel based on the downlink shared channel, and a transmission section that transmits the uplink control channel in the radio resource, and the control section determines the radio resource for the uplink control channel so that a different radio resource is determined for each downlink narrow band.
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