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公开(公告)号:US12074707B2
公开(公告)日:2024-08-27
申请号:US17918534
申请日:2021-02-18
Inventor: Shotaro Maki , Akihiko Nishio , Ayako Horiuchi
IPC: H04L1/08 , H04L5/00 , H04W52/02 , H04W72/0446
CPC classification number: H04L1/08 , H04L5/0055 , H04W52/02 , H04W72/0446
Abstract: This mobile station is provided with a control circuit that, on the basis of information relating to a plurality of second time resources including a first time resource set to a first type of mobile station, decides a resource used for repeat transmission to a second type of mobile station, and a reception circuit that receives signals by a resource.
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公开(公告)号:US11191030B2
公开(公告)日:2021-11-30
申请号:US16643760
申请日:2018-08-22
Inventor: Takashi Iwai , Tomohumi Takata , Shotaro Maki
Abstract: In a terminal, a transmission power control unit controls the transmission power of an uplink channel (the PUSCH) by using transmission power control information (a TPC command) indicating one from among a plurality of candidate values. A wireless transmission unit transmits the uplink channel with the above transmission power. Instruction information for resetting a control value (closed loop correction value) to be used in a closed loop control of the transmission power is associated with at least one value among the above plurality of candidate values.
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公开(公告)号:US12177149B2
公开(公告)日:2024-12-24
申请号:US18487911
申请日:2023-10-16
Inventor: Shotaro Maki , Hidetoshi Suzuki , Ayako Horiuchi
IPC: H04L5/00
Abstract: In a transmitter, an assignment circuit maps a phase tracking reference signal (PT-RS) onto a subcarrier, and a transmitting circuit transmits a signal containing the phase tracking reference signal. The phase tracking reference signal is mapped onto a different subcarrier for each cell, group, or mobile station.
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公开(公告)号:US11824805B2
公开(公告)日:2023-11-21
申请号:US17576531
申请日:2022-01-14
Inventor: Shotaro Maki , Hidetoshi Suzuki , Ayako Horiuchi
IPC: H04L5/00
CPC classification number: H04L5/0048 , H04L5/0094
Abstract: In a transmitter, an assignment circuit maps a phase tracking reference signal (PT-RS) onto a subcarrier, and a transmitting circuit transmits a signal containing the phase tracking reference signal. The phase tracking reference signal is mapped onto a different subcarrier for each cell, group, or mobile station.
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公开(公告)号:US11570768B2
公开(公告)日:2023-01-31
申请号:US17306501
申请日:2021-05-03
Inventor: Lilei Wang , Hidetoshi Suzuki , Tomohumi Takata , Shotaro Maki
Abstract: Provided are a user equipment, base station and wireless communication methods related to uplink control information mapping in physical uplink resources in NR (New Radio access technology). A user equipment comprises: circuitry operative to map, in physical resource blocks (PRBs) for Physical Uplink Shared Channel (PUSCH), Uplink Control Information (UCI) to one or more available resource elements according to their distances with resource elements where reference signals are mapped in one or more of time domain, frequency domain and spatial domain; and a transmitter operative to transmit the UCI and the reference signals in PUSCH on the PRBs to a base station.
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公开(公告)号:US11558829B2
公开(公告)日:2023-01-17
申请号:US16965769
申请日:2019-01-09
Inventor: Shotaro Maki , Takashi Iwai , Hidetoshi Suzuki
Abstract: The present invention provides a transmitter which can suitably perform a transmission power control in a PT-RS port. In this transmitter (100), a control unit (101) determines a transmission power for transmitting a reference signal (PT-RS) for phase tracking and a data signal within a range in which the maximum transmission power for each antenna port is not exceeded. In addition, a transmission unit (105) transmits the reference signal for phase tracking and the data signal at the transmission power determined by the control unit (101).
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公开(公告)号:US11283557B2
公开(公告)日:2022-03-22
申请号:US16603924
申请日:2017-04-28
Inventor: Shotaro Maki , Hidetoshi Suzuki , Lilei Wang
Abstract: An EVM measurement value is appropriately determined while CPE/ICI correction is taken into account. In a measurement apparatus (300), an EVM measurer (305) measures a modulation quality of a signal transmitted from a transmission apparatus. An EVM determiner (306) determines whether or not the measurement value of the modulation quality is equal to or less than a first requirement value, in a case where correction relating to a phase noise of the transmission apparatus is necessary in a reception apparatus. The first requirement value herein is higher than a second requirement value used in the determination of the measurement value in a case where the correction relating to the phase noise of the transmission apparatus is unnecessary in the reception apparatus.
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公开(公告)号:US12219502B2
公开(公告)日:2025-02-04
申请号:US18493467
申请日:2023-10-24
Inventor: Shotaro Maki , Takashi Iwai , Hidetoshi Suzuki
Abstract: The present invention provides a transmitter which can suitably perform a transmission power control in a PT-RS port. In this transmitter (100), a control unit (101) determines a transmission power for transmitting a reference signal (PT-RS) for phase tracking and a data signal within a range in which the maximum transmission power for each antenna port is not exceeded. In addition, a transmission unit (105) transmits the reference signal for phase tracking and the data signal at the transmission power determined by the control unit (101).
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公开(公告)号:US11838877B2
公开(公告)日:2023-12-05
申请号:US18061274
申请日:2022-12-02
Inventor: Shotaro Maki , Takashi Iwai , Hidetoshi Suzuki
CPC classification number: H04W52/367 , H04L1/0003 , H04L5/0051 , H04L27/2675 , H04W52/365
Abstract: The present invention provides a transmitter which can suitably perform a transmission power control in a PT-RS port. In this transmitter (100), a control unit (101) determines a transmission power for transmitting a reference signal (PT-RS) for phase tracking and a data signal within a range in which the maximum transmission power for each antenna port is not exceeded. In addition, a transmission unit (105) transmits the reference signal for phase tracking and the data signal at the transmission power determined by the control unit (101).
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公开(公告)号:US11616619B2
公开(公告)日:2023-03-28
申请号:US17255917
申请日:2019-08-26
Inventor: Shotaro Maki , Takashi Iwai , Ayako Horiuchi , Ankit Bhamri , Yoshihiko Ogawa
Abstract: Provided is a base station with which it is possible to appropriately arrange a reference signal. In a base station (100), a control unit (101) determines a second threshold value on the basis of a first threshold value used in determining the arrangement of a reference signal. A transmission unit (105) transmits the reference signal arranged on the basis of the second threshold value.
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