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公开(公告)号：US11540265B2
公开(公告)日：2022-12-27
申请号：US17131286
申请日：2020-12-22
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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公开(公告)号：US11343661B2
公开(公告)日：2022-05-24
申请号：US15810589
申请日：2017-11-13
Inventor： Ayako Horiuchi , Hidetoshi Suzuki
Abstract: In a base station, control circuitry determines, based on an offset for defining a frequency position of a narrowband allocated to an MPDCCH and a resource block group size of a system band, allocations of a first EPDCCH set and a second EPDCCH set that constitute the MPDCCH. The MPDCCH is a PDCCH for MTC. The second EPDCCH set has a different number of PRBs from the first EPDCCH set. A transmitter transmits a control signal according to the allocations of the first EPDCCH set and the second EPDCCH set. Further, the control circuitry controls a number of RBGs in which both the first EPDCCH set and the second EPDCCH set are allocated to be zero or one.
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公开(公告)号：US11337242B2
公开(公告)日：2022-05-17
申请号：US15773528
申请日：2016-09-12
Inventor： Ayako Horiuchi , Hidetoshi Suzuki
Abstract: A signal assignment unit (105) assigns a downlink control signal including resource assignment information of a PDSCH to a downlink resource. A specification unit (108) specifies a PUCCH resource using an offset value set to either a first PRB set or a second PRB set when the downlink control signal is disposed to spread over the first PRB set and the second PRB set. A signal separation unit (109) separates an ACK/NACK signal included in the specified PUCCH resource from a received signal from a terminal to which the downlink control signal has been transmitted.
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公开(公告)号：US11258558B2
公开(公告)日：2022-02-22
申请号：US16499949
申请日：2018-04-16
Inventor： Shotaro Maki , Hidetoshi Suzuki , Ayako Horiuchi
IPC: H04L5/00
Abstract: In a transmitter, an assignment circuit maps a phase tracking reference signal (PT-RS) onto a subcarrier, and a transmitting circuit transmits a signal containing the phase tracking reference signal. The phase tracking reference signal is mapped onto a different subcarrier for each cell, group, or mobile station.
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公开(公告)号：US11224067B2
公开(公告)日：2022-01-11
申请号：US16373064
申请日：2019-04-02
IPC: H04W72/14 , H04B17/336 , H04L1/00 , H04W72/04 , H04W72/12
Abstract: The present disclosure relates to a data transmitting device, data receiving device and the corresponding data transmitting method and data receiving method for transmitting/receiving data over a wireless channel in a communication system. In particular, a first resource grant is received for a data transmission in a subframe and a second resource grant for a data transmission of data in said subframe. Then, it is determined, according to which of the first resource grant and the second resource grant data are to be transmitted in the subframe; and the data is transmitted in the subframe according to the selected first grant or second grant.
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Patent Agency Ranking
公开(公告)号：US20220006540A1
公开(公告)日：2022-01-06
申请号：US17478003
申请日：2021-09-17
Inventor： Ayako Horiuchi , Masayuki Hoshino , Seigo Nakao
IPC: H04B17/318 , H04L5/00 , H04W48/12
Abstract: Received Signal Strength Indicator (RSSI) is measured accurately even in a case where a discovery signal is transmitted. A receiver receives a plurality of subframes, at least one of which includes a discovery signal, and a measurer measures Reference Signal Reception Power (RSRP) using a first resource in which the discovery signal is mapped, measures RSSI using a second resource different from the first resource for which the discovery signal is mapped, and calculates Reference Signal Reception Quality (RSRQ) using RSRP and RSSI.
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公开(公告)号：US11177928B2
公开(公告)日：2021-11-16
申请号：US17033163
申请日：2020-09-25
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 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 includes 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：US11005638B2
公开(公告)日：2021-05-11
申请号：US16322416
申请日：2016-09-29
Inventor： Lilei Wang , Hidetoshi Suzuki , Ayako Horiuchi
Abstract: There are provided an apparatus, a method and a system. The apparatus comprises: a transmitter operative to transmit wireless data or signals to a second node; and a circuitry operative to determine whether one or more reserved periods are reserved between two continuous data or signals transmitted by the transmitter based on a length of configured transmission time intervals (TTIs), wherein the circuitry is further operative to: determine the one or more reserved periods are reserved between two continuous data or signals in a case that the length of configured TTI is shorter than or equal to a threshold.
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公开(公告)号：US11005543B2
公开(公告)日：2021-05-11
申请号：US14383021
申请日：2013-03-08
Inventor： Tadashi Yoshida , Ayako Horiuchi , Takashi Iwai , Yoshihiko Ogawa , Akihiko Nishio
Abstract: This invention is a transmission device capable of enhancing the reception characteristics of a terminal when employing transmit diversity using two antenna ports in an ePDCCH. In a base station (100) that transmits a reference signal to a terminal (200) using two antenna ports, a setting unit (102), on the basis of the reception quality of the terminal, sets as the aforementioned two antenna ports either a first antenna port pair for which DMRS (reference signals) do not undergo mutual code multiplexing, or a second antenna port pair for which the DMRS do undergo code multiplexing. A transmitter (109) transmits the DMRS from the two antenna ports set in the setting unit (102).
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公开(公告)号：US10999830B2
公开(公告)日：2021-05-04
申请号：US16097794
申请日：2017-04-20
Inventor： Tetsuya Yamamoto , Ayako Horiuchi , Takashi Iwai
Abstract: In a base station, a controller, when communicating with a terminal using a time unit including a downlink time resource for a downlink control signal, a downlink time resource assigned for downlink data by the downlink control signal, and a uplink time resource for a response signal for the downlink data, sets the amount of the uplink time resource used by the terminal for transmission of the response signal to be larger as the time unit is longer.
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