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公开(公告)号：US20200229001A1
公开(公告)日：2020-07-16
申请号：US16643766
申请日：2018-08-22
Inventor： TOMOHUMI TAKATA , TAKASHI IWAI , SHOTARO MAKI , YIHUI LI
Abstract: In a terminal, a transmission power calculation unit calculates a transmission power of an uplink signal by using transmission power control information indicating one value from among a plurality of candidate values respectively associated with correction values that correct a control value to use in a closed loop control of the transmission power. A wireless transmission unit transmits the uplink signal with the above transmission power. A first correction value and a second correction value having a larger step size than the first correction value are associated with each of the plurality of candidate values.
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公开(公告)号：US20210315003A1
公开(公告)日：2021-10-07
申请号：US17353375
申请日：2021-06-21
Inventor： TAKASHI IWAI , YOSHIO URABE , TOMOHUMI TAKATA
Abstract: In an AP, a Trigger frame generator generates a trigger signal instructing an uplink signal transmission, the trigger signal including a terminal information field that includes a terminal ID subfield and a resource unit allocation information subfield, and a radio transmitter/receiver transmits the trigger signal. In a case where the trigger signal includes a first terminal information field specifying one or more contiguous resource units for random access, the Trigger frame generator sets an unused ID that is not to be used as a terminal ID in the first terminal information field.
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公开(公告)号：US20200329459A1
公开(公告)日：2020-10-15
申请号：US16306378
申请日：2017-05-19
Inventor： TAKASHI IWAI , AYAKO HORIUCHI , TETSUYA YAMAMOTO , TOMOHUMI TAKATA
Abstract: In a base station, a transmission unit transmits a downlink control signal and downlink data assigned by the downlink control signal in a time unit including a downlink time resource for the downlink control signal, a downlink time resource for the downlink data, and an uplink time resource for a response signal for the downlink data. A reception unit receives the response signal in the time unit. A transmission bandwidth of the response signal is equal to or lower than a transmission bandwidth of the downlink data corresponding to the response signal.
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公开(公告)号：US20200280925A1
公开(公告)日：2020-09-03
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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5.发明申请公开(公告)号：US20220141066A1
公开(公告)日：2022-05-05
申请号：US17578281
申请日：2022-01-18
Inventor： TAKASHI IWAI , TOMOHUMI TAKATA , HIDETOSHI SUZUKI , TETSUYA YAMAMOTO , QUAN KUANG
Abstract: When a plurality of the subcarrier spacing values are applied, a reference signal is generated by using a sequence having a sequence length corresponding to a first ratio of a first subcarrier spacing set for transmission data to the maximum settable subcarrier spacing. The sequence of the reference signal is mapped to a frequency resource at mapping intervals in accordance with a second ratio which is the reciprocal of the first ratio, and the transmission data and the reference signal are transmitted.
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Patent Agency Ranking
公开(公告)号：US20210266883A1
公开(公告)日：2021-08-26
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：US20200178222A1
公开(公告)日：2020-06-04
申请号：US16631493
申请日：2017-08-10
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：US20200044805A1
公开(公告)日：2020-02-06
申请号：US16606395
申请日：2018-04-17
Inventor： TAKASHI IWAI , HIDETOSHI SUZUKI , TOMOHUMI TAKATA , TETSUYA YAMAMOTO
Abstract: In a terminal, a selecting unit selects one generation method from a plurality of generation methods for reference signals (sounding reference signals (SRSs)). A radio transmitting unit transmits reference signals (SRSs) generated in accordance with the selected generation method.
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9.发明申请公开(公告)号：US20240396778A1
公开(公告)日：2024-11-28
申请号：US18796123
申请日：2024-08-06
Inventor： TAKASHI IWAI , TOMOHUMI TAKATA , HIDETOSHI SUZUKI , TETSUYA YAMAMOTO , QUAN KUANG
Abstract: When a plurality of the subcarrier spacing values are applied, a reference signal is generated by using a sequence having a sequence length corresponding to a first ratio of a first subcarrier spacing set for transmission data to the maximum settable subcarrier spacing. The sequence of the reference signal is mapped to a frequency resource at mapping intervals in accordance with a second ratio which is the reciprocal of the first ratio, and the transmission data and the reference signal are transmitted.
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公开(公告)号：US20240373437A1
公开(公告)日：2024-11-07
申请号：US18773370
申请日：2024-07-15
Inventor： LILEI WANG , HIDETOSHI SUZUKI , TOMOHUMI TAKATA , SHOTARO MAKI
IPC: H04W72/23 , H04L1/1812 , H04L5/00
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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