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公开(公告)号：US12176990B2
公开(公告)日：2024-12-24
申请号：US18465131
申请日：2023-09-11
Inventor： Ayako Horiuchi , Lilei Wang , Alexander Golitschek Edler Von Elbwar , Hidetoshi Suzuki , Kazuki Takeda
IPC: H04B7/08 , H04B7/06 , H04L1/00 , H04L5/00 , H04L25/02 , H04L27/26 , H04W52/32 , H04W72/23 , H04B7/0452
Abstract: A communication apparatus includes a circuitry and a transmitter. In operation, the circuitry generates a Demodulation Reference Signal (DMRS) and generates downlink control information indicating a mapping pattern of the DMRS from a plurality of mapping patterns, and the transmitter transmits the DMRS and the downlink control information. The plurality of mapping patterns include a first mapping pattern and a second mapping pattern. Resource elements used for the DMRS of the second mapping pattern are same as a part of resource elements used for the DMRS of the first mapping pattern. A number of the resource elements used for the DMRS of the first mapping pattern is larger than a number of the resource elements used for the DMRS of the second mapping pattern.
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公开(公告)号：US10912075B2
公开(公告)日：2021-02-02
申请号：US16691251
申请日：2019-11-21
Inventor： Lilei Wang , Kazuki Takeda , Ayako Horiuchi , Alexander Golitschek Edler von Elbwart , Masayuki Hoshino , Yoshihiko Ogawa
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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公开(公告)号：US10826673B2
公开(公告)日：2020-11-03
申请号：US16904291
申请日：2020-06-17
Inventor： Ayako Horiuchi , Lilei Wang , Alexander Golitschek Edler Von Elbwart , Hidetoshi Suzuki , Kazuki Takeda
IPC: H04L5/00 , H04W52/32 , H04L1/00 , H04L27/26 , H04B7/0452
Abstract: A communication apparatus includes a receiver and circuitry. In operation, the receiver receives a Demodulation Reference Signal (DMRS) and receives downlink control information indicating a mapping pattern of the DMRS from a plurality of mapping patterns, and the circuitry determines the mapping pattern based on the downlink control information. The plurality of mapping patterns include a first mapping pattern and a second mapping pattern. Resource elements used for the DMRS of the second mapping pattern are same as a part of resource elements used for the DMRS of the first mapping pattern. A number of the resource elements used for the DMRS of the first mapping pattern is larger than a number of the resource elements used for the DMRS of the second mapping pattern.
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公开(公告)号：US10728010B2
公开(公告)日：2020-07-28
申请号：US16681635
申请日：2019-11-12
Inventor： Ayako Horiuchi , Lilei Wang , Alexander Golitschek Edler Von Elbwart , Hidetoshi Suzuki , Kazuki Takeda
IPC: H04L5/00 , H04W52/32 , H04L1/00 , H04L27/26 , H04B7/0452
Abstract: A communication apparatus includes control circuitry and a transmitter. In operation, the control circuitry selects a Demodulation Reference Signal (DMRS) mapping pattern from among a plurality of DMRS mapping patterns. The DMRS mapping patterns include a first DMRS mapping pattern with first DMRS resource elements to which first DMRSs in a first half of a subframe are mapped and second DMRS resource elements to which second DMRSs in a second half of the subframe are mapped. Also, in operation, the transmitter transmits downlink control information that includes a plurality of bits indicating the selected DMRS mapping pattern.
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公开(公告)号：US10531448B2
公开(公告)日：2020-01-07
申请号：US16109331
申请日：2018-08-22
Inventor： Lilei Wang , Kazuki Takeda , Ayako Horiuchi , Alexander Golitschek Edler von Elbwart , Masayuki Hoshino , Yoshihiko Ogawa
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
6.发明授权公开(公告)号：US10454720B2
公开(公告)日：2019-10-22
申请号：US15724105
申请日：2017-10-03
Inventor： Takashi Iwai , Daichi Imamura , Akihiko Nishio , Yoshihiko Ogawa , Kazuki Takeda
IPC: H04L25/02 , H04J13/22 , H04L5/00 , H04J11/00 , H04J13/00 , H04B7/024 , H04L25/03 , H04B7/0452 , H04W84/04
Abstract: A mobile terminal determine a reference signal sequence number based on a sequence length and a first selection reference value used for a first communication system that is different from a second communication system adapting a 3GPP release 10 or earlier. The first selection reference value is obtained from a sequence group number assigned to the terminal and different from a second selection reference value used for the second communication system. The mobile terminal generates a reference signal based on the determined reference signal sequence number and transmits the generated reference signal.
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公开(公告)号：US10171225B2
公开(公告)日：2019-01-01
申请号：US15611394
申请日：2017-06-01
Inventor： Ayako Horiuchi , Alexander Golitschek Edler von Elbwart , Hidetoshi Suzuki , Kazuki Takeda , Lilei Wang
IPC: H04L5/00 , H04W52/32 , H04L1/00 , H04L27/26 , H04B7/0452
Abstract: A communication apparatus includes control circuitry and a transmitter. In operation, the control circuitry selects a Demodulation Reference Signal (DMRS) mapping pattern from among a plurality of DMRS mapping patterns. The DMRS mapping patterns include a first DMRS mapping pattern with first DMRS resource elements to which first DMRSs in a first half of a subframe are mapped and second DMRS resource elements to which second DMRSs in a second half of the subframe are mapped. Also, in operation, the transmitter transmits downlink control information that includes a plurality of bits indicating the selected DMRS mapping pattern.
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公开(公告)号：US09844046B2
公开(公告)日：2017-12-12
申请号：US14777702
申请日：2013-04-01
Inventor： Lilei Wang , Kazuki Takeda , Ayako Horiuchi , Alexander Golitschek Edler Von Elbwart , Masayuki Hoshino , Yoshihiko Ogawa
CPC classification number: H04W72/042 , H04L5/0023 , H04L5/0035 , H04L5/0048 , H04L5/0094 , H04L25/0226 , H04W16/32
Abstract: The present invention 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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公开(公告)号：US20170272141A1
公开(公告)日：2017-09-21
申请号：US15611394
申请日：2017-06-01
Inventor： Ayako Horiuchi , Alexander Golitschek Edler von Elbwart , Hidetoshi Suzuki , Kazuki Takeda , Lilei Wang
CPC classification number: H04L5/0094 , H04B7/0452 , H04L1/0001 , H04L5/0007 , H04L5/0026 , H04L5/0033 , H04L5/0035 , H04L5/0051 , H04L5/0073 , H04L27/2646 , H04W52/325
Abstract: A communication apparatus includes control circuitry and a transmitter. In operation, the control circuitry selects a Demodulation Reference Signal (DMRS) mapping pattern from among a plurality of DMRS mapping patterns. The DMRS mapping patterns include a first DMRS mapping pattern with first DMRS resource elements to which first DMRSs in a first half of a subframe are mapped and second DMRS resource elements to which second DMRSs in a second half of the subframe are mapped. Also, in operation, the transmitter transmits downlink control information that includes a plurality of bits indicating the selected DMRS mapping pattern.
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公开(公告)号：US09622234B2
公开(公告)日：2017-04-11
申请号：US14421755
申请日：2013-07-04
Inventor： Kazuki Takeda , Hidetoshi Suzuki , Ayako Horiuchi
CPC classification number: H04W72/042 , H04L1/0026 , H04L1/1854 , H04L5/0007 , H04L5/0055
Abstract: Provided is a wireless communication terminal such that, in a system in which E-PDCCH control information is transmitted, flexible frequency scheduling for the E-PDCCH control information for a plurality of terminals can be performed by restricting ACK/NACK scheduling, while an upstream data resource is ensured. The wireless communication terminal is provided with: a reception unit that receives a control signal via an extended physical downstream control channel; a control unit that determines an ACK/NACK resource for transmitting an ACK/NACK signal on the basis of an association rule such that, in the extended physical downstream control channel transmitting each extended control channel element in a single frequency resource block, arbitrary successive numbers of ACK/NACK resources correspond to the extended control channel elements contained in different frequency resource blocks; and a transmission unit that transmits the ACK/NACK signal by using the determined ACK/NACK resource.
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