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31. 发明授权

US11490455B2 User equipment and base station 有权
公开(公告)号：US11490455B2
公开(公告)日：2022-11-01
申请号：US16344501
申请日：2017-10-31
申请人： NTT DOCOMO, INC.
发明人： Yousuke Sano , Kazuki Takeda , Kazuaki Takeda , Daiki Takeda , Daisuke Murayama , Satoshi Nagata
IPC分类号： H04W88/06 , H04W48/12 , H04W74/08 , H04L5/14 , H04L5/00 , H04W72/04 , H04W28/06
摘要： Disclosed is a scheme of transmitting various types of radio signals for which interference between adjacent cells is considered in a radio communication system (for example, dynamic TDD) in which uplink communication and downlink communication can be dynamically switched. A feature of the present invention relates to user equipment including a transceiver that performs transmission and reception of a radio signal with a base station in accordance with a communication scheme in which uplink communication and downlink communication are dynamically switched and a signal processor that processes the radio signal, wherein the transceiver transmits a connection request signal generated by the signal processor in fixed uplink radio resources of the communication scheme.

32. 发明授权

US11489579B2 Terminal, radio communication method, and system for beam failure recovery 有权
公开(公告)号：US11489579B2
公开(公告)日：2022-11-01
申请号：US16970776
申请日：2018-02-19
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
IPC分类号： H04W72/04 , H04B7/06 , H04W76/19 , H04W24/08 , H04W80/02
摘要： A terminal is disclosed including a transmitter that transmits a beam failure recovery request signal; and a processor that maintains, in a beam failure recovery procedure including the transmission of the beam failure recovery request signal, monitoring of downlink control information for a random access. In other aspects, a radio communication method and a base station are also disclosed.

33. 发明授权

US11483806B2 User terminal and radio communication method 有权
公开(公告)号：US11483806B2
公开(公告)日：2022-10-25
申请号：US16482750
申请日：2018-02-02
申请人： NTT DOCOMO, INC.
发明人： Yuki Matsumura , Kazuki Takeda , Satoshi Nagata
IPC分类号： H04W4/00 , H04W72/04 , H04L5/00 , H04L27/26
摘要： The present invention is designed so that, even when a sequence-based uplink control channel is used, uplink control information is reported properly. A user terminal according to one aspect of the present invention has a control section that determines signals to transmit in a frequency resource for transmitting uplink control information, and a transmission section that transmits the signals in the frequency resource, and, when the signals include a signal sequence to use an orthogonal resource that is associated with the uplink control information, the control section assumes that a bandwidth of the frequency resource is equal to or greater than a predetermined bandwidth.

34. 发明授权

US11444676B2 User terminal and radio communication method 有权
公开(公告)号：US11444676B2
公开(公告)日：2022-09-13
申请号：US16958452
申请日：2017-12-27
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Chongning Na , Xiaolin Hou
IPC分类号： H04B7/06 , H04W76/19 , H04W36/30 , H04W16/28 , H04W28/02 , H04W52/36 , H04W72/12 , H04W74/08
摘要： To perform a beam failure recovery procedure by using an appropriate radio resource, a user terminal includes a transmitting section that transmits a beam failure recovery request, and a control section that controls transmission of the beam failure recovery request by using at least one of an uplink shared channel, an uplink control channel, a sounding reference signal, and a random access channel indicated by a downlink control channel.

35. 发明授权

US11425787B2 Receiving apparatus and transmitting apparatus 有权
公开(公告)号：US11425787B2
公开(公告)日：2022-08-23
申请号：US16634433
申请日：2017-07-28
申请人： NTT DOCOMO, INC.
发明人： Keisuke Saito , Kazuaki Takeda , Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
IPC分类号： H04W72/12 , H04L5/00 , H04W88/06 , H04L27/26 , H04W80/08 , H04W88/08
摘要： A receiving apparatus is disclosed including a receiver that receives a downlink shared channel using a first allocation that supports a first allocation interval and a first allocation start symbol, and a second allocation that supports a second allocation interval and a second allocation start symbol, the first allocation interval and the first allocation start symbol being different from the second allocation interval and the second allocation start symbol, respectively; and a processor that applies a reference signal configuration type, notified by a higher layer, to a first reference signal used in a downlink shared channel that applies the first allocation, and to a second reference signal used in a downlink shared channel that applies the second allocation. In other aspects, a transmitting apparatus is also disclosed.

36. 发明授权

US11412410B2 User terminal and radio communication method 有权
公开(公告)号：US11412410B2
公开(公告)日：2022-08-09
申请号：US16307528
申请日：2017-06-08
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Satoshi Nagata
IPC分类号： H04W28/06 , H04W72/04 , H04W88/06 , H04L5/16 , H04L5/00 , H04B7/06 , H04W72/12 , H04W72/14
摘要： The present invention is designed to maximize the amount of radio resources that can be used in DL, UL or SL in a subframe containing a given DL signal or UL resource. A user terminal has a receiving section that receives downlink control information, and a control section that controls communication by switching between UL communication and DL communication within a subframe based on the downlink control information, and, in a subframe including a signal or a resource in a given communication direction, the control section switches communication in a direction different from the communication direction of the signal or the resource.

37. 发明申请

US20220216972A1 USER TERMINAL AND RADIO COMMUNICATION METHOD 有权
公开(公告)号：US20220216972A1
公开(公告)日：2022-07-07
申请号：US17605931
申请日：2019-04-25
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Shohei Yoshioka , Satoshi Nagata , Lihui Wang , Xiaolin Hou
IPC分类号： H04L5/00 , H04W24/08
摘要： A user terminal includes: a receiving section that receives configuration information of a search space set; and a control section that controls monitoring of downlink control information (DCI) of a first format other than formats 0_0 and 0_1 used for scheduling of an uplink shared channel and a second format other than formats 1_0 and 1_1 used for scheduling of a downlink shared channel in the search space set configured based on the configuration information. According to an aspect of the present disclosure, monitoring of downlink control information can be appropriately controlled.

38. 发明授权

US11381372B2 User equipment and transmission control method 有权
公开(公告)号：US11381372B2
公开(公告)日：2022-07-05
申请号：US15112722
申请日：2015-01-15
申请人： NTT DOCOMO, INC.
发明人： Tooru Uchino , Kazuki Takeda , Hideaki Takahashi , Kazuaki Takeda
IPC分类号： H04L5/00 , H04W52/34 , H04W72/04 , H04W72/12 , H04L5/14
摘要： User equipment for transmitting an uplink control channel in multiple cells simultaneously in a radio communication system where transmission of the uplink control channel in a secondary cell is supported is disclosed. One aspect of the present invention relates to the user equipment, comprising: a transmission and reception unit configured to transmit and receive a radio channel to/from a base station via multiple cells configured for carrier aggregation; a simultaneous transmission availability determination unit configured to determine, in response to occurrence of an event where an uplink control channel is to be transmitted in the multiple cells simultaneously, whether the uplink control channel can be transmitted in the multiple cells simultaneously; and a transmission control unit configured to instruct the transmission and reception unit to transmit the uplink control channel in the multiple cells simultaneously if the uplink control channel can be transmitted in the multiple cells simultaneously and control transmission of the uplink control channel in accordance with transmission priorities corresponding to cell types if the uplink control channel cannot be transmitted in the multiple cells simultaneously.

39. 发明授权

US11375460B2 User equipment 有权
公开(公告)号：US11375460B2
公开(公告)日：2022-06-28
申请号：US16967864
申请日：2018-02-15
申请人： NTT DOCOMO, INC.
发明人： Tooru Uchino , Ryosuke Osawa , Kazuki Takeda , Kazuaki Takeda , Hideaki Takahashi
IPC分类号： H04W52/36 , H04W52/14 , H04W52/24
摘要： A user equipment in a radio communication system including the user equipment and a base station, including: an uplink transmission power information calculation unit configured to calculate uplink transmission power information of a serving cell using a parameter that may be changed dynamically; and a signal transmission unit configured to include, in control information in which the uplink transmission power information is set, identification information for identifying a parameter used for calculation of the uplink transmission power information, and to transmit the control information in which the identification information is included to the base station.

40. 发明授权

US11374693B2 Terminal and radio communication method for transmitting and receiving uplink control information (UCI) 有权
公开(公告)号：US11374693B2
公开(公告)日：2022-06-28
申请号：US15573742
申请日：2016-05-13
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Tooru Uchino , Satoshi Nagata
IPC分类号： H04L1/18 , H04W72/04 , H04L5/00 , H03M13/15
摘要： A terminal is disclosed that includes a processor that determines a cyclic shift to be applied to a demodulation reference signal, based on a plurality of candidates configured by higher layer signaling and based on a field, for indicating a physical uplink control channel (PUCCH) resource for an uplink control information (UCI), included in a downlink control information. The terminal further includes a transmitter that transmits the UCI using a PUCCH format, in which the determined cyclic shift is applied to the demodulation reference signal and to which an orthogonal code having a sequence length less than 5 is applied, where the processor controls a frequency-domain orthogonal cover code (freq-domain OCC) to be applied for the PUCCH format, and where a number of bits of the UCI is more than 2. In other aspects, a base station and another terminal are also disclosed.

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