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公开(公告)号：US12004155B2
公开(公告)日：2024-06-04
申请号：US17421351
申请日：2019-09-12
Inventor： Shotaro Maki , Takashi Iwai , Tomofumi Takata
IPC: H04W72/1268 , H04L1/00 , H04W72/0453 , H04W72/20
CPC classification number: H04W72/1268 , H04L1/0051 , H04W72/0453 , H04W72/20
Abstract: Provided is a mobile station that can appropriately allocate resources in an unlicensed band. In the mobile station (200), on the basis of resource association between an uplink reference signal and another uplink signal different from the reference signal, a control unit (205) determines a frequency resource to be used for uplink transmission. A transmission unit (209) uses the frequency resource to transmit at least one of the reference signal and the other uplink signal.
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公开(公告)号：US11973603B2
公开(公告)日：2024-04-30
申请号：US17420957
申请日：2019-09-11
Inventor： Tomoya Nunome , Takashi Iwai , Hidetoshi Suzuki , Ayako Horiuchi , Yoshihiko Ogawa
IPC: H04L1/1829 , H04L5/00
CPC classification number: H04L1/1854 , H04L1/1861 , H04L5/0055 , H04L5/0064
Abstract: Provided is a base station that performs feedback with regard to data transmission. The base station includes a downlink feedback information (DFI) generation unit and a transmitter. On the basis of a resource allocation configuration that was configured by a terminal, the DFI generation unit determines a transmission method for feedback information that includes a response signal regarding uplink data. The transmitter transmits the feedback information on the basis of the transmission method.
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公开(公告)号：US11943788B2
公开(公告)日：2024-03-26
申请号：US18298804
申请日：2023-04-11
Inventor： Tetsuya Yamamoto , Ayako Horiuchi , Takashi Iwai
IPC: H04L5/00 , H04L1/18 , H04L1/1829 , H04L5/14 , H04L69/324 , H04W28/04 , H04W72/23 , H04W88/02 , H04W88/08
CPC classification number: H04W72/23 , H04L1/18 , H04L1/1854 , H04L1/1858 , H04L1/1861 , H04L5/0044 , H04L5/0053 , H04L5/0055 , H04L5/1469 , H04L69/324 , H04W28/04 , H04L5/0094 , H04W88/02 , H04W88/08
Abstract: A terminal includes a receiver, which, in operation, receives time unit information related to an amount of an uplink time resource per a time unit, and receives a number of repetitions over a plurality of the time units, wherein the time unit includes a downlink time resource for a downlink signal and the uplink time resource for a response signal. The amount of the uplink time resource is expressed as a fixed number of consecutive symbols that remains the same number over the plurality of the time units over which the response signal is repeatedly transmitted. The terminal includes a transmitter, which, in operation, repeatedly transmits the response signal over the plurality of the time units.
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公开(公告)号：US11863478B2
公开(公告)日：2024-01-02
申请号：US17230831
申请日：2021-04-14
Inventor： Tomohumi Takata , Takashi Iwai , Hidetoshi Suzuki , Ayako Horiuchi , Joachim Loehr , Tetsuya Yamamoto
CPC classification number: H04L5/0048 , H04L5/0053 , H04L5/143 , H04L27/0006 , H04L27/2607
Abstract: A base station (100, 300) is provided with a transmitter and a receiver. The transmitter (109) transmits a downlink signal in a downlink transmission region, in a time unit that includes the downlink transmission region, an uplink transmission region, and a gap period that is a switching point between the downlink transmission region and the uplink transmission region. The receiver (111) receives an uplink signal in the uplink transmission region, in the time unit. Furthermore, a delay tolerant signal for which a delay is tolerated more than for the downlink signal and the uplink signal is mapped to within the gap period.
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公开(公告)号：US11785606B2
公开(公告)日：2023-10-10
申请号：US18149521
申请日：2023-01-03
Inventor： Tetsuya Yamamoto , Hongchao Li , Hidetoshi Suzuki , Takashi Iwai
Abstract: Provided is a terminal that can appropriately transmit an uplink signal. In a terminal (200), a control unit (211) determines a processing mode with respect to uplink data and uplink control information according to a requirement for at least one of uplink data and uplink control information when transmission of an uplink data channel that includes the uplink data and transmission of an uplink control channel that includes the uplink control information temporally overlap. A transmission unit (218) transmits the at least one of the uplink data and the uplink control information on the basis of the determined processing mode.
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Patent Agency Ranking
公开(公告)号：US11696324B2
公开(公告)日：2023-07-04
申请号：US17353375
申请日：2021-06-21
Inventor： Takashi Iwai , Yoshio Urabe , Tomohumi Takata
CPC classification number: H04W74/006 , H04W74/02 , H04W84/12
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：US11695510B2
公开(公告)日：2023-07-04
申请号：US17031332
申请日：2020-09-24
Inventor： Takashi Iwai , Hidetoshi Suzuki , Ayako Horiuchi , Lilei Wang , Joachim Loehr
IPC: H04L5/00 , H04L1/00 , H04L1/1829 , H04L1/1867 , H04W72/21 , H04L1/1812 , H04L27/26 , H04L27/38
CPC classification number: H04L1/0083 , H04L1/1819 , H04L1/1861 , H04L1/1893 , H04L5/0055 , H04L27/2605 , H04L27/38 , H04W72/21 , H04L1/1854 , H04L1/1887 , H04L5/0007 , H04L5/0016
Abstract: A self-contained operation using a time-unit configuration taking into consideration HARQ processes is performed. In base station, transmission section transmits a downlink signal in a downlink transmission region in a time unit composed of the downlink transmission region, an uplink transmission region, and a gap interval that is a switching point from the downlink transmission region to the uplink transmission region; and reception section receives an uplink signal in the uplink transmission region in the time unit. Each time unit includes the downlink transmission region and the uplink transmission region for each of HARQ processes.
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公开(公告)号：US11637733B2
公开(公告)日：2023-04-25
申请号：US17221398
申请日：2021-04-02
Inventor： Tetsuya Yamamoto , Hidetoshi Suzuki , Lilei Wang , Takashi Iwai
IPC: H04L27/26 , H04L27/00 , H04W76/27 , H04L5/00 , H04W72/0453
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：US11601926B2
公开(公告)日：2023-03-07
申请号：US17264263
申请日：2019-04-12
Inventor： Tetsuya Yamamoto , Hongchao Li , Hidetoshi Suzuki , Takashi Iwai
Abstract: Provided is a terminal that can appropriately transmit an uplink signal. In a terminal (200), a control unit (211) determines a processing mode with respect to uplink data and uplink control information according to a requirement for at least one of uplink data and uplink control information when transmission of an uplink data channel that includes the uplink data and transmission of an uplink control channel that includes the uplink control information temporally overlap. A transmission unit (218) transmits the at least one of the uplink data and the uplink control information on the basis of the determined processing mode.
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公开(公告)号：US11570821B2
公开(公告)日：2023-01-31
申请号：US17254360
申请日：2018-06-29
Inventor： Tomofumi Takata , Takashi Iwai , Lilei Wang , Hidetoshi Suzuki , Tetsuya Yamamoto
Abstract: In a terminal (200), a radio transmitter (209) transmits a signal, and a controller (204) determines an allocation resource to which a signal is assigned in a predetermined frequency band. The predetermined frequency band herein is divided into a plurality of bands, and each of the plurality of bands includes a plurality of frequency resources which are base units of resource allocation for the signal. Furthermore, the allocation resource to which the signal is assigned is composed of at least one of the base units of each of the plurality of bands. Furthermore, a configuration method of the at least one of the base units forming the allocation resource is different for each of the plurality of bands.
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