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公开(公告)号:US12225589B2
公开(公告)日:2025-02-11
申请号:US17261835
申请日:2019-10-02
Inventor: Takashi Iwai , Tomofumi Takata , Hidetoshi Suzuki , Tetsuya Yamamoto
IPC: H04W74/0833
Abstract: The present invention provides a terminal that can carry out a random-access process appropriately. A terminal (100) is provided with: a wireless transmission unit (108) that transmits a data signal; and a control unit (101) that determines a second resource for use in transmitting the data signal on the basis of a first resource for use in transmitting a preamble signal.
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公开(公告)号:US12192914B2
公开(公告)日:2025-01-07
申请号:US17746676
申请日:2022-05-17
Inventor: Tetsuya Yamamoto , Hidetoshi Suzuki
IPC: H04W52/24 , H04L5/00 , H04W52/14 , H04W72/0446 , H04W72/0453 , H04W72/21
Abstract: In a terminal, in a slot having allocated thereto both an uplink control channel (PUCCH) and an uplink channel (PUSCH) that includes uplink data, in a case where the difference between the power spectrum density (PSD) of the PUCCH and the PSD of the PUSCH is greater than a threshold value (permitted difference), a control unit drops symbols of the PUSCH in a transmission interval for the PUSCH overlapping with a transmission interval for the PUCCH. A transmission unit transmits at least the PUCCH in the slot.
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公开(公告)号:US12177832B2
公开(公告)日:2024-12-24
申请号:US17625072
申请日:2020-03-11
Inventor: Tetsuya Yamamoto , Ankit Bhamri , Hidetoshi Suzuki , Rikin Shah , Hongchao Li
IPC: H04W72/1268 , H04L1/1812 , H04L5/00 , H04W72/23 , H04W72/566
Abstract: This terminal is provided with: a control circuit that, on the basis of information relating to the priority degrees of a plurality of uplink signals, determines at least one uplink signal to be transmitted in some transmission resource in a time domain among the plurality of uplink signals; and a transmission circuit that transmits the determined uplink signal in the transmission resource.
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公开(公告)号:US12114311B2
公开(公告)日:2024-10-08
申请号:US18503931
申请日:2023-11-07
Inventor: Tetsuya Yamamoto , Hidetoshi Suzuki , Yoshihiko Ogawa
CPC classification number: H04W72/20 , H04L5/0055
Abstract: A terminal with which it is possible to appropriately transmit uplink control information. In a terminal (200), a reception unit (202) receives first control information relating to an uplink data channel, and a second control information relating to an uplink control channel for transmitting uplink control information. The first control information includes first indication information indicating the presence or absence of an uplink data transmission and second indication information indicating the presence or absence a channel state information transmission. A transmission unit (220) transmits uplink control information using the resource of the uplink data channel when the first indication information indicates that there is no uplink data transmission and the second indication information indicates that there is no channel state information transmission.
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公开(公告)号:US12101825B2
公开(公告)日:2024-09-24
申请号:US17619493
申请日:2020-06-19
Inventor: Ming-Hung Tao , Hidetoshi Suzuki , Rikin Shah , Hongchao Li , Tetsuya Yamamoto
IPC: H04W74/0833 , H04W74/00 , H04W74/02 , H04W76/20
CPC classification number: H04W74/0841 , H04W74/008 , H04W74/02 , H04W76/20
Abstract: The present disclosure relates to a user equipment (UE) that comprises a receiver, which receives a plurality of random access type threshold values. A processing circuitry of the UE determines a random value and then selects a type of a random access procedure to be performed by the UE. The selecting comprises at least selecting one out of the plurality of random access type threshold values, comparing the determined random value against the selected random access type threshold value, and selecting a type of the random access procedure based on the result of the comparison. The UE then performs the random access procedure of the selected type.
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公开(公告)号:US12041670B2
公开(公告)日:2024-07-16
申请号:US17429262
申请日:2019-12-04
Inventor: Tetsuya Yamamoto , Hidetoshi Suzuki , Rikin Shah , Akihiko Nishio , Ming-Hung Tao
IPC: H04W74/0833 , H04W74/00 , H04W74/08 , H04W80/02
CPC classification number: H04W74/0841 , H04W74/006 , H04W74/0866 , H04W80/02
Abstract: A terminal, with which it is possible to improve the efficiency of a random access process. In a terminal (200), a control unit (209) dynamically determines a parameter pertaining to the transmission of a data part out of a random access signal that includes a preamble part and the data part. A transmission unit (217) notifies the determined parameter to a base station (100) using the random access signal.
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公开(公告)号:US12015512B2
公开(公告)日:2024-06-18
申请号:US18302584
申请日:2023-04-18
Inventor: Tetsuya Yamamoto , Ayako Horiuchi
IPC: H04L27/26 , H04L1/00 , H04L1/08 , H04L1/1829 , H04L5/00 , H04L25/02 , H04W72/04 , H04W72/0446 , H04W72/20 , H04W72/21 , H04W72/23
CPC classification number: H04L27/26132 , H04L1/0003 , H04L1/0013 , H04L1/08 , H04L1/1861 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/0094 , H04L25/0224 , H04L25/0228 , H04L27/26 , H04L27/2607 , H04L27/2613 , H04L27/2626 , H04W72/04 , H04W72/0446 , H04W72/20 , H04W72/21 , H04W72/23 , H04L5/005 , H04L27/2636
Abstract: A repetition unit (212) performs a repetition for mapping a data signal and a demodulation reference signal (DMRS) repeatedly at a symbol level over a plurality of subframes. A signal allocation unit (213) maps, in the a plurality of subframes, the repeated DMRS to symbols other than symbols corresponding to an SRS resource candidate, which is a candidate for a resource to which a sounding reference signal (SRS) to be used to measure an uplink received signal quality is to be mapped. A transmission unit (216) transmits an uplink signal (PUSCH) including the DMRS and the data signal over the a plurality of subframes.
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公开(公告)号:US11997708B2
公开(公告)日:2024-05-28
申请号:US17871757
申请日:2022-07-22
Inventor: Tetsuya Yamamoto , Hidetoshi Suzuki , Lilei Wang
IPC: H04W74/00 , H04L5/00 , H04W72/0453 , H04W74/0833
CPC classification number: H04W74/006 , H04L5/0055 , H04W72/0453 , H04W74/0833
Abstract: In a base station (100), a controller (101) determines one set from among a plurality of sets, each of which including one or more candidates for a resource for an uplink (UL) control channel during initial access, and determines one candidate from among the one or more candidates for the resource, which is included in the determined set. A transmitter (114) indicates the determined set to a terminal (200) by higher layer signaling, and indicates the determined candidate by dynamic signaling. A receiver (116) receives a UL control signal, using the resource corresponding to the determined candidate in the determined set. In the base station, the association between a value to be indicated by the higher layer signaling and the plurality of sets is configured for each of one or more parameters relating to the initial access.
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公开(公告)号:US11937259B2
公开(公告)日:2024-03-19
申请号:US17421343
申请日:2019-09-24
Inventor: Ayako Horiuchi , Tetsuya Yamamoto , Tomoya Nunome , Ankit Bhamri
IPC: H04W72/23 , H04L1/08 , H04L5/00 , H04W28/04 , H04W72/0446
CPC classification number: H04W72/23 , H04L1/08 , H04L5/0053 , H04L5/0091 , H04W28/04 , H04W72/0446
Abstract: Provided is a base station capable of enhancing signal reception performance. In the base station (100), a control unit (101) generates data signals in unit of fixed length. A transmission unit (107) performs repetitive transmission of a transmission signal including at least one of the data signals in unit of fixed length in a resource that can be set to a plurality of data lengths.
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公开(公告)号:US11792852B2
公开(公告)日:2023-10-17
申请号:US17255914
申请日:2019-04-05
Inventor: Tomofumi Takata , Hidetoshi Suzuki , Takashi Iwai , Tetsuya Yamamoto
IPC: H04W74/08 , H04L27/26 , H04W72/0453 , H04W72/21
CPC classification number: H04W74/0816 , H04L27/2636 , H04W72/0453 , H04W72/21
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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