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公开(公告)号：EP4009722A1
公开(公告)日：2022-06-08
申请号：EP19940567.1
申请日：2019-08-02
申请人： NTT DOCOMO, INC.
摘要： A terminal according to one aspect of the present disclosure includes: a receiving section that receives a channel state information (CSI)-reference signal (RS) of at least one of a plurality of CSI-RSs each transmitted by using a plurality of antenna ports, the number of which is more than 32; and a control section that performs measurement by using the CSI-RS. According to one aspect of the present disclosure, the CSI-RS transmitted by using a larger number of CSI-RS ports can be appropriately measured.
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公开(公告)号：EP3944690A1
公开(公告)日：2022-01-26
申请号：EP19920557.6
申请日：2019-03-20
申请人： NTT DOCOMO, INC.
发明人： FUJIMURA, Naoki , KAKISHIMA, Yuichi , MOROGA, Hideyuki , JIANG, Yu , CHEN, Siyi , WANG, Jing , WANG, Xin
摘要： A user device includes a control unit that estimates a moving speed and a moving direction of the user device, and that estimates, based on the moving speed and the moving direction, a configuration of a reference signal to be used for a measurement; a transmitting unit that transmits, to a base station device, the estimated configuration of the reference signal; a receiving unit that receives a configuration of a reference signal determined by the base station device based on the estimated configuration of the reference signal; and a communication unit that executes the measurement based on the determined configuration of the reference signal.
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公开(公告)号：EP3823340A1
公开(公告)日：2021-05-19
申请号：EP18925890.8
申请日：2018-07-09
申请人： NTT DOCOMO, INC.
发明人： OSAWA, Ryosuke , KAKISHIMA, Yuichi , WANG, Huan
摘要： A user equipment communicates with a first user equipment or a base station apparatus, the user equipment including a receiving unit configured to receive a synchronization signal or a reference signal used in sidelink transmitted from the first user equipment; a control unit configured to measure a channel state of sidelink, based on the synchronization signal or the reference signal; and a transmitting unit configured to transmit, to the base station apparatus or the first user equipment, information indicating the channel state of sidelink.
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公开(公告)号：EP3745814A1
公开(公告)日：2020-12-02
申请号：EP19744242.9
申请日：2019-01-17
申请人： NTT DOCOMO, INC.
发明人： YOSHIOKA, Shohei , NAGATA, Satoshi , LIU, Min , WANG, Jing , NA, Chongning , KAKISHIMA, Yuichi
摘要： The present invention is designed to control recovery from beam failures properly. According to one aspect of the present invention, a user terminal has a control section that increments a beam failure instance counter based on a beam failure instance indication received from a physical layer, in a higher layer, a transmission section that transmits a random access preamble based on a transmission instructionfrom the higher layer when the beam failure instance counter reaches or exceeds a given threshold, and a receiving section that monitors for a physical downlink control channel (PDCCH), based on a given search space configuration, for a response to the random access preamble, in a given response window period.
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公开(公告)号：EP3741066A1
公开(公告)日：2020-11-25
申请号：EP19703567.8
申请日：2019-01-18
申请人： NTT DoCoMo, Inc.
发明人： KAKISHIMA, Yuichi , NAGATA, Satoshi , UCHINO, Toru , LIU, Min , NA, Chongning
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公开(公告)号：EP3731429A1
公开(公告)日：2020-10-28
申请号：EP17935375.0
申请日：2017-12-21
申请人： NTT DOCOMO, INC.
IPC分类号： H04B7/06
摘要： A user apparatus communicates with a base station apparatus via radio signals to which beamforming is applied, the user apparatus including a receiving unit configured to receive a beam transmitted from the base station apparatus; a control unit configured to execute measurement of reception power and interference power of the beam transmitted from the base station apparatus; and a transmitting unit configured to transmit information based on a result of the measurement to the base station apparatus.
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公开(公告)号：EP3691365A1
公开(公告)日：2020-08-05
申请号：EP17926664.8
申请日：2017-09-29
申请人： NTT DOCOMO, INC.
IPC分类号： H04W72/04
摘要： A radio transmission device may include transmitter (105) that transmits a radio link signal, and controller (101). The radio link signal includes a phase tracking reference signal used for correction of a phase fluctuation in a propagation channel. Controller (101) controls, based on a reference position in a time domain of the radio link signal, a position at which the phase tracking reference signal is to be mapped in the time domain of the radio link signal.
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公开(公告)号：EP3687214A1
公开(公告)日：2020-07-29
申请号：EP18858034.4
申请日：2018-09-18
申请人： NTT DOCOMO, INC.
发明人： NAGATA, Satoshi , KAKISHIMA, Yuichi , NA, Chongning , WANG, Xin
摘要： The measurement of interference is configured in a flexible manner. A user terminal has a receiving section that receives configuration information, which indicates allocation of an interference measurement resource in a unit resource and a control section that controls measurement of a DL signal based on the configuration information.
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