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51.发明授权公开(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：US11985639B2
公开(公告)日：2024-05-14
申请号：US18172976
申请日：2023-02-22
Inventor： Alexander Golitschek Edler von Elbwart , Lilei Wang , Ayako Horiuchi
IPC: H04W72/0446 , H04L5/00 , H04W72/23 , H04W74/0833
CPC classification number: H04W72/0446 , H04L5/0044 , H04W72/23 , H04W74/0833
Abstract: The present disclosure relates to receiving and transmitting data in a frame with subframes of a wireless communication system, each subframe being either an uplink subframe accommodating uplink signal, a downlink subframe accommodating downlink signal or a special subframe including a downlink signal portion as well as an uplink signal portion. A control signal includes a special subframe configuration specifying the length of the uplink and/or downlink portion of the special subframe. The mapping and demapping of user data and/or control data including feedback information in a transmission time interval, TTI, onto or from one subframe is then performed, wherein the length of a second TTI for mapping onto the uplink portion of a special subframe is shorter than a first TTI for mapping onto an uplink subframe, or a first number of TTIs mapped onto the uplink subframe is larger than a second number of TTIs for mapping onto the uplink portion of a special subframe. The data are received or transmitted accordingly.
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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：US20240057146A1
公开(公告)日：2024-02-15
申请号：US18319325
申请日：2023-05-17
Inventor： Masayuki Hoshino , Ayako Horiuchi , Seigo Nakao
IPC: H04W72/542 , H04W48/16 , H04L5/00 , H04W24/10 , H04W72/0446
CPC classification number: H04W72/542 , H04W48/16 , H04L5/0048 , H04W24/10 , H04W72/0446 , H04W88/08
Abstract: A reception processor receives the cell detection reference signals, each of the cell detection reference signals being transmitted from corresponding one of a plurality of cells. An RRM report generator generates measurement information indicating a measurement result of reception quality measured using the cell detection reference signal. A transmission processor transmits the measurement information. The cell detection reference signals are mapped to any one of a plurality of candidate resources, which is a part of a plurality of resources set for other reference signals in a subframe to which the cell detection reference signals are mapped.
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公开(公告)号：US11864204B2
公开(公告)日：2024-01-02
申请号：US18057653
申请日：2022-11-21
Inventor： Lilei Wang , Kazuki Takeda , Ayako Horiuchi , Alexander Golitschek Edler Von Elbwart , Masayuki Hoshino , Yoshihiko Ogawa
CPC classification number: H04W72/23 , H04L5/0048 , H04L5/0094 , H04L25/0226 , H04W16/32 , H04L5/0023 , H04L5/0035
Abstract: The present disclosure aims at allowing a demodulation reference signal (DMRS) pattern suitable for a terminal to be selected from among a plurality of DMRS patterns including Legacy DMRS and Reduced DMRS. Disclosed is a terminal including: reception section 21 that receives uplink control information; control section 23 that determines a specific mapping pattern from among a plurality of mapping patterns for an uplink DMRS on the basis of the control information; and DMRS generating section 24 that generates a DMRS according to the specific mapping pattern.
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Patent Agency Ranking
公开(公告)号：US11792817B2
公开(公告)日：2023-10-17
申请号：US17513386
申请日：2021-10-28
Inventor： Ayako Horiuchi , Lilei Wang , Alexander Golitschek Edler von Elbwart , Masayuki Hoshino , Yasuaki Yuda
IPC: H04W72/23 , H04L1/00 , H04L5/00 , H04W72/20 , H04L1/1812 , H04W72/0446
CPC classification number: H04W72/23 , H04L1/00 , H04L1/0003 , H04L1/1812 , H04L5/0048 , H04L5/0055 , H04W72/0446 , H04W72/20
Abstract: A base station is disclosed that enables an efficient use of resources even when a TTI length is shortened. In this base station, a PDCCH section (103) generates one piece of downlink control information (DCI) containing control information for a plurality of first transmission time intervals (TTIs) each having a TTI length shorter than a second TTI, and a transmission section (107) transmits the DCI. Control information on retransmission processing for a data signal is configured for each of the plurality of first TTIs while control information other than the control information on the retransmission processing is configured in common among the plurality of first TTIs in the DCI.
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公开(公告)号：US11791964B2
公开(公告)日：2023-10-17
申请号：US17947992
申请日：2022-09-19
Inventor： Ayako Horiuchi , Akihiko Nishio
IPC: H04L5/00 , H04L1/1867 , H04L1/1812 , H04L1/1829 , H04W72/21 , H04W72/23 , H04L1/1822 , H04L1/12
CPC classification number: H04L5/0048 , H04L1/1812 , H04L1/1822 , H04L1/1854 , H04L1/1887 , H04L1/1896 , H04L5/0055 , H04W72/21 , H04W72/23 , H04L2001/125
Abstract: Provided is a wireless communication device. A PHICH reception unit determines whether a received signal in a PHICH region is an ACK signal or a NACK signal. When doing so, the PHICH reception unit does not receive a PHICH in a subframe in which a terminal monitors an E-PDCCH. A control signal reception unit outputs a retransmission prompting signal to a signal allocation unit when the signal outputted from the PHICH reception unit is a NACK signal and when a UL grant was not detected. Meanwhile, when a UL grant was detected, the control signal reception unit outputs the detected UL grant to the signal allocation unit. The signal allocation unit maps the transmission signal in accordance with the retransmission prompting signal and the UL grant and transmits the transmission signal from a wireless transmission unit.
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公开(公告)号：US11750355B2
公开(公告)日：2023-09-05
申请号：US17476338
申请日：2021-09-15
Inventor： Tetsuya Yamamoto , Alexander Golitschek Edler Von Elbwart , Lilei Wang , Ayako Horiuchi , Hidetoshi Suzuki
IPC: H04L5/00 , H04W72/20 , H04W72/0453
CPC classification number: H04L5/0092 , H04W72/20 , H04L5/001 , H04L5/0048 , H04W72/0453
Abstract: A communication apparatus includes circuitry that determines a number of resource blocks forming a resource block group, which is a unit used to allocate a resource to the communication apparatus, in a first band or in a second band that is an expanded band to which the first band is expanded, and a subcarrier spacing for the second band is same or different from a subcarrier spacing for the first band; and a transceiver that is coupled to the circuitry and that communicates with a base station using the resource. One of the number of resource blocks set for the first band and the number of resource blocks set for the second band is an integer multiple of the other, and the number of resource blocks set for the first band and the number of resource blocks set for the second band are values that are a power of two.
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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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公开(公告)号：US20220417069A1
公开(公告)日：2022-12-29
申请号：US17896863
申请日：2022-08-26
Abstract: Provided are wireless communication devices and methods. A wireless communication device can comprise: circuitry operative to map at least a first type of reference signals (RSs) onto orthogonal frequency division multiplexing (OFDM) symbol(s) other than the OFDM symbols onto which shortened transmission time intervals (TTIs) are mapped in a subframe, each of the shortened TTIs comprising 1-7 OFDM symbols; and a transmitter operative to transmit a physical channel in one of the shortened TTIs and transmit at least the first type of RSs.
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