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公开(公告)号：US10945258B2
公开(公告)日：2021-03-09
申请号：US16471855
申请日：2017-01-06
Inventor： Ayako Horiuchi , Hidetoshi Suzuki , Lilei Wang
Abstract: A terminal is disclosed, which is capable of appropriately determining a resource to which a DCI is mapped. A DCI receiver (203) receives first and second downlink (DL) control signals, and a signal demultiplexer (202) demultiplexes a DL data signal from a received signal, using the first and the second DL control signals. The DCI receiver (203) identifies a resource for the second DL control signal based on information on the first DL control signal, or information on the DL data signal, indicated by the first DL control signal.
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122.发明授权公开(公告)号：US10924239B2
公开(公告)日：2021-02-16
申请号：US16462934
申请日：2017-10-05
Inventor： Takashi Iwai , Tomohumi Takata , Hidetoshi Suzuki , Ayako Horiuchi
Abstract: In the multiple short sequence based SRS, multiple items of sequence data having a short sequence length corresponding to a partial band are used for transmitting SRS in discontinuous bands. In the multiple short sequence based SRS, a terminal specifies a frequency domain to be used for transmitting a reference signal using predetermined sequence data, applies a phase shift index associated with the specified frequency domain to the reference signal, and transmits the reference signal to which the phase shift index is applied by using the specified frequency domain.
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公开(公告)号：US10924238B2
公开(公告)日：2021-02-16
申请号：US16428090
申请日：2019-05-31
Inventor： Ayako Horiuchi , Hidetoshi Suzuki
Abstract: A resource assignment determiner determines a resource for a PDSCH intended for an MTC terminal, and a transmitter transmits an MPDCCH that includes resource assignment bits indicating the resource thus determined and transmits the PDSCH using the resource thus determined. The MPDCCH is a PDCCH intended for the MTC terminal. The resource assignment bits are associated with a resource that is used when the MPDCCH and the PDSCH are transmitted in the same subframe and a resource that is used when the MPDCCH and the PDSCH are transmitted in different subframes.
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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：US10892869B2
公开(公告)日：2021-01-12
申请号：US16656223
申请日：2019-10-17
Inventor： Ayako Horiuchi , Akihiko Nishio
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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Patent Agency Ranking
公开(公告)号：US10834146B2
公开(公告)日：2020-11-10
申请号：US16125018
申请日：2018-09-07
Inventor： Takako Hori , Prateek Basu Mallick , Hidetoshi Suzuki , Ayako Horiuchi , Joachim Loehr
Abstract: A UE includes an EUTRA-CMR reception unit that receives a codec mode request (EUTRA-CMR) including a codec mode that is determined by an eNB in accordance with a radio condition of the UE, a mode switching notification unit that notifies an encoder of switching to the codec mode included in the received codec mode request; and a mode switching acknowledgement unit that transmits a response message to the eNB when confirming that the encoder switches the codec mode.
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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：US10757693B2
公开(公告)日：2020-08-25
申请号：US16096070
申请日：2016-05-12
Inventor： Lilei Wang , Ayako Horiuchi , Hidetoshi Suzuki
Abstract: Provided are base stations, user equipments and wireless communication methods related to DCI design for latency reduction. A base station comprises: circuitry operative to form either a first type of DCI or a second type of DCI depending on whether to schedule a normal TTI or a shortened TTI in a subframe; and a transmitter operative to transmit the first type of DCI or the second type of DCI in the subframe, wherein the first type of DCI and the second type of DCI are differentiable; and if the second type of DCI is transmitted and another shortened TTI is to be scheduled, the circuitry is further operative to form a third type of DCI and the transmitter is further operative to transmit the third type of DCI in a shortened TTI after said shortened TTI that is scheduled by the second type of DCI in the subframe.
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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：US20200162124A1
公开(公告)日：2020-05-21
申请号：US16748408
申请日：2020-01-21
Inventor： Tetsuya Yamamoto , Hidetoshi Suzuki , Ayako Horiuchi
Abstract: In the present invention, regarding a narrowband used in a subframe for transmitting uplink data, if a switch is made from a first narrowband used in a first subframe to a second narrowband that is different from the first narrowband, with respect to a second subframe continuing to the first subframe, a final one symbol of the first subframe and an initial one symbol of the second subframe are punctured and set as a retuning time to transmit the uplink data in the first narrowband and the second narrowband.
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