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公开(公告)号：US10779247B2
公开(公告)日：2020-09-15
申请号：US16198385
申请日：2018-11-21
发明人： Kimihiko Imamura , Wataru Ouchi , Yosuke Akimoto , Toshizo Nogami , Daiichiro Nakashima , Kazuyuki Shimezawa , Shoichi Suzuki , Yasuyuki Kato , Katsunari Uemura
IPC分类号： H04W52/42 , H04W52/14 , H04W52/24 , H04L5/00 , H04W24/10 , H04J11/00 , H04W24/02 , H04W88/08
摘要： There are provided a base station, a terminal, and a communication system in a wireless communication system in which a base station and a terminal communicate with each other, in which the base station and the terminal can efficiently perform communication. The communication system includes a higher layer processing unit 605 configured to configure, at the base station, for each terminal, a first reference signal configuration for configuring a measurement target for channel state reporting, configured to configure, at the base station, for each terminal, a second reference signal configuration specifying a resource element to be excluded from the target of data demodulation in a case where the terminal demodulates data, and configured to configure, at the base station, for each terminal, a third reference signal configuration for configuring a measurement target for which a reference signal received power is to be measured by the terminal.
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公开(公告)号：US10660094B2
公开(公告)日：2020-05-19
申请号：US15507007
申请日：2015-08-28
发明人： Katsuya Kato , Kazuyuki Shimezawa , Ryota Yamada
摘要： A terminal device uses a broad band to improve a throughput. A terminal device communicates with a base station apparatus, and includes a higher layer processing unit that receives an instruction from the base station apparatus to perform communication according to a first frame structure used in a prescribed carrier frequency band or to perform communication according to a second frame structure used in a carrier frequency band higher than the prescribed carrier frequency band, and a reception unit that receives a signal of the first frame structure in a case where it is instructed to perform the communication according to the first frame structure, and receives a signal of the second frame structure in a case where it is instructed to perform the communication according to the second frame structure.
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公开(公告)号：US10582481B2
公开(公告)日：2020-03-03
申请号：US15573760
申请日：2016-05-13
摘要： A terminal device (UE) includes a reception unit configured to monitor multiple enhanced physical downlink control channels (EPDCCHs) on a Secondary cell. In a case that the Secondary cell is a licensed assisted access Secondary cell and a higher layer parameter of the Secondary cell indicates that a starting position of downlink transmission is either a Subframe boundary or a slot boundary, the terminal device is configured to monitor both a first set of UE-specific search space candidates in a first EPDCCH and a second set of UE-specific search space candidates in a second EPDCCH, in a subframe. A starting symbol for the first EPDCCH is specified by an index in a first slot in the subframe. A starting symbol for the second EPDCCH is specified by the index in a second slot in the subframe.
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公开(公告)号：US10524243B2
公开(公告)日：2019-12-31
申请号：US15546866
申请日：2016-01-19
摘要： A cell using an unallocated frequency band or a shared frequency band is efficiently controlled. A terminal device includes a reception unit configured to monitor a physical downlink control channel (PDCCH) in a secondary cell having a frame structure type 3. In the secondary cell having the frame structure type 3, upon a first possible starting position of a downlink transmission and a second possible starting position of the downlink transmission being indicated by a higher layer, the terminal device monitors both a first set of candidates for the PDCCH and a second set of candidates for the PDCCH in a predetermined subframe. The first set of candidates is assumed to start on the basis of the first possible starting position, and the second set of candidates is assumed to start on the basis of the second possible starting position.
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公开(公告)号：US10440671B2
公开(公告)日：2019-10-08
申请号：US15553573
申请日：2016-03-10
摘要： Communication is efficiently performed even when the communication is performed in a high carrier frequency. A terminal apparatus includes: a reception unit configured to receive assistance information from a primary cell and a plurality of synchronization signals from a secondary cell and to perform synchronization on the basis of the assistance information and the plurality of synchronization signals; and a transmission unit configured to transmit measurement information regarding at least one of the plurality of synchronization signals. The assistance information includes respective pieces of information regarding the plurality of synchronization signals. The assistance information includes an ID of each of the plurality of synchronization signals, and the terminal apparatus transmits the ID as the measurement information regarding the synchronization signal.
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公开(公告)号：US10340992B2
公开(公告)日：2019-07-02
申请号：US15740363
申请日：2016-07-01
IPC分类号： H04W8/22 , H04B7/0456 , H04W8/24 , H04W16/28 , H04W28/04 , H04W72/04 , H04L1/18 , H04L5/00 , H04W72/12
摘要： A terminal device decodes a code block of a transport block, and in a case that a first transmission mode is configured, a rate matching for the code block is processed based on a first total number of soft channel bits; in a case that a second transmission mode is configured and first information is configured, a rate matching for the code block is processed based on the first total number of soft channel bits; and in a case that the second transmission mode is configured and the first information is not configured, a rate matching for the code block is processed based on a second total number of soft channel bits. Here, the first information indicates the maximum number of layers associated with PDSCH transmission.
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公开(公告)号：US10187136B2
公开(公告)日：2019-01-22
申请号：US15304882
申请日：2015-04-21
发明人： Kazuyuki Shimezawa , Wataru Ouchi , Naoki Kusashima , Takashi Hayashi , Alvaro Ruiz Delgado , Toshizo Nogami , Kimihiko Imamura
摘要： There are provided terminal devices (1A to 1C) capable of efficiently performing communication in a communication system in which a base station device (3) and the terminal devices (1A to 1C) communicate with each other. The terminal devices (1A to 1C) that communicate with the base station device (3) include a reception unit that receives notification of a cell state of the base station device (3), a channel state information generation unit that generates channel state information based on channel measurement acquired based on a channel state information reference signal and interference measurement acquired based on a channel state information interference measurement resource, and a transmission unit that transmits the channel state information. The channel state information generation unit performs the channel measurement or the interference measurement based on a subframe in consideration of the cell state.
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公开(公告)号：US20180278390A1
公开(公告)日：2018-09-27
申请号：US15524446
申请日：2015-11-02
CPC分类号： H04L5/0048 , H04B7/0626 , H04L1/1812 , H04L1/1861 , H04L5/0055 , H04W24/10 , H04W72/04 , H04W72/0406
摘要： There are provided a base station apparatus, a terminal apparatus, and a commutation method, which are capable of improving throughput. A higher layer processing unit that configures a CSI process that is a configuration relating to reporting of a channel state information (CSI), for the terminal apparatus for which a prescribed transmission mode is configured, and a reception unit that receives the CSI based on the CSI process are included. The plurality of CSI reference signal configurations are configured for the CSI process, and information that is based on at least one CSI reference signal configuration, among the plurality of CSI reference signal configurations, is received as the CSI.
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公开(公告)号：US10085247B2
公开(公告)日：2018-09-25
申请号：US14772575
申请日：2014-03-07
CPC分类号： H04W72/042 , H04J11/00 , H04J11/005 , H04J11/0079 , H04L1/00 , H04L1/1861 , H04L5/001 , H04L5/0048 , H04L5/0051
摘要： Provided is a terminal that performs communication with a base station, in which, in a case where a physical downlink control channel is monitored in a first enhanced physical downlink control channel-physical resource block set, a demodulation reference signal is used that is based on a scrambling sequence which is initialized by a prescribed parameter, and in which, in a case where the physical downlink control channel is monitored in a second enhanced physical downlink control channel-physical resource block set, a demodulation reference signal is used that is based on a scrambling sequence which is initialized by a parameter that is set individually for each terminal.
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公开(公告)号：US10057028B2
公开(公告)日：2018-08-21
申请号：US14921313
申请日：2015-10-23
发明人： Kazuyuki Shimezawa , Toshizo Nogami
CPC分类号： H04L5/005 , H04B7/046 , H04B7/0626 , H04B7/063 , H04B7/0639 , H04W8/24 , H04W24/08 , H04W88/02 , H04W88/08
摘要： A communication system that includes a terminal apparatus and a base station apparatus. The terminal apparatus transfers terminal capability information to the base station apparatus, whereby the terminal capability information indicating whether the terminal apparatus supports a PDSCH transmission mode with 4 or more CSI reference signal ports. The terminal apparatus reports a channel state information computed from a channel measurement, whereby the channel measurement in the PDSCH transmission mode with 4 or more CSI reference signal ports is based on only CSI-RS.
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