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公开(公告)号：US20220295474A1
公开(公告)日：2022-09-15
申请号：US17633535
申请日：2020-07-28
Inventor： Tomoya NUNOME , Hidetoshi SUZUKI , Takashi IWAI , Tetsuya YAMAMOTO
Abstract: The present invention contributes to the provision of a terminal and a transmission method which can improve the efficiency of the repetitive transmission of an uplink signal. The terminal is provided with: a transmission circuit which performs repetitive transmissions of an uplink signal in a plurality of time periods; and a control circuit which controls a time period in which a transmission opportunity of uplink control information is set among the plurality of time periods.
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公开(公告)号：US20220132500A1
公开(公告)日：2022-04-28
申请号：US17571365
申请日：2022-01-07
Inventor： Takashi IWAI , Daichi IMAMURA , Tomofumi TAKATA , Yoshihiko OGAWA
Abstract: It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length and a standard sequence number in a step, setting a threshold value in accordance with an RB number in a step, setting a sequence length corresponding to RB number in a step, judging whether ¦r/N−rb/Nb¦=Xth(m) is satisfied in a step, including a plurality of Zadoff-Chu sequences with a sequence number and a sequence length in a sequence group in a step if the judgment is positive, and allocating the sequence group to the same cell in a step.
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公开(公告)号：US20210336738A1
公开(公告)日：2021-10-28
申请号：US17284385
申请日：2019-10-03
Inventor： Takayuki NAKANO , Yoshio URABE , Takashi IWAI , Tomofumi TAKATA
Abstract: An AP (100) with which a Midamble can be set appropriately. For a plurality of user-multiplexed terminals a Midamble configuration determination unit (109) in the AP (100) determines, for each of the plurality of terminals, a configuration of a reference signal inserted into a data field. A wireless transmission/reception unit (104) carries out a communication process on a user-multiplexed signal on the basis of the configuration of the reference signal.
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公开(公告)号：US20210274551A1
公开(公告)日：2021-09-02
申请号：US17255914
申请日：2019-04-05
Inventor： Tomofumi TAKATA , Hidetoshi SUZUKI , Takashi IWAI , Tetsuya YAMAMOTO
Abstract: Provided is a terminal capable of transmitting an uplink signal appropriately in an unlicensed band. In a terminal (100), a resource allocating unit (107) allocates uplink signals to each of a plurality of bands into which a prescribed frequency band has been divided. Each of the plurality of bands is a unit for determining whether a resource is being used by another device. A radio transmitting unit (109) transmits the uplink signals.
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公开(公告)号：US20210227591A1
公开(公告)日：2021-07-22
申请号：US17256109
申请日：2019-10-02
Inventor： Takashi IWAI , Hidetoshi SUZUKI , Tomofumi TAKATA
Abstract: The present invention provides a terminal capable of suitably performing random access processing. In a terminal (100), a RACH resource determination unit (104) determines the format of a random access signal on the basis of a parameter related to the transmission of the random access signal, which includes a preamble part and a data part. A wireless transmission unit (109) transmits the random access signal on the basis of the format.
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Patent Agency Ranking
公开(公告)号：US20210226835A1
公开(公告)日：2021-07-22
申请号：US17221398
申请日：2021-04-02
Inventor： Tetsuya YAMAMOTO , Hidetoshi SUZUKI , Lilei WANG , Takashi IWAI
Abstract: A terminal (transmission apparatus) is disclosed, which is capable of appropriately configuring processing of a Post-IFFT section in accordance with a communication environment in signal waveform generation. In the terminal, an IFFT section performs IFFT processing on a transmission signal; a control section determines a signal waveform configuration for the transmission signal after the IFFT processing in accordance with a communication environment of the terminal; and the Post-IFFT section performs Post-IFFT processing on the transmission signal after the IFFT processing based on the determined signal waveform configuration.
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公开(公告)号：US20210203541A1
公开(公告)日：2021-07-01
申请号：US17203441
申请日：2021-03-16
Inventor： Ayako HORIUCHI , Hidetoshi SUZUKI , Lilei WANG , Takashi IWAI
Abstract: A terminal includes circuitry and a transmitter. The circuitry, in operation, determines a first transmission power for a first uplink signal and a second transmission power for a second uplink signal by prioritizing allocation of a transmission power to the second transmission power for the second uplink signal, responsive to, in a first transmission time interval (TTI) where the first uplink signal is transmitted, the second uplink signal being transmitted in a second TTI that is shorter than the first TTI. The transmitter, in operation, transmits the first uplink signal with the determined first transmission power and transmits the second uplink signal with the determined second transmission power.
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公开(公告)号：US20210045071A1
公开(公告)日：2021-02-11
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：US20190173712A1
公开(公告)日：2019-06-06
申请号：US16324303
申请日：2016-08-11
Inventor： Tetsuya YAMAMOTO , Hidetoshi SUZUKI , Lilei WANG , Takashi IWAI
Abstract: A terminal (transmission apparatus) is disclosed, which is capable of appropriately configuring processing of a Post-IFFT section in accordance with a communication environment in signal waveform generation. In the terminal, an IFFT section performs IFFT processing on a transmission signal; a control section determines a signal waveform configuration for the transmission signal after the IFFT processing in accordance with a communication environment of the terminal, and the Post-IFFT section performs Post-IFFT processing on the transmission signal after the IFFT processing based on the determined signal waveform configuration.
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公开(公告)号：US20190053233A1
公开(公告)日：2019-02-14
申请号：US16163117
申请日：2018-10-17
Inventor： Takashi IWAI , Daichi IMAMURA , Tomofumi TAKATA , Yoshihiko OGAWA
Abstract: It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method includes the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST101), setting a threshold value (Xth(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether ¦r/N−rb/Nb¦=Xth(m) is satisfied in a step (ST106), including a plurality of Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST107) if the judgment is positive, and allocating the sequence group (rb) to the same cell in a step (ST112).
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