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公开(公告)号:US20210400646A1
公开(公告)日:2021-12-23
申请号:US17421343
申请日:2019-09-24
Inventor: Ayako HORIUCHI , Tetsuya YAMAMOTO , Tomoya NUNOME , Ankit BHAMRI
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:US20210204259A1
公开(公告)日:2021-07-01
申请号:US17200335
申请日:2021-03-12
Inventor: Tetsuya YAMAMOTO , Ayako HORIUCHI , Takashi IWAI
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:US20210159952A1
公开(公告)日:2021-05-27
申请号:US17258560
申请日:2019-04-04
Inventor: Tomoya NUNOME , Hidetoshi SUZUKI , Takashi IWAI , Ayako HORIUCHI , Yoshihiko OGAWA
IPC: H04B7/0456 , H04W72/04
Abstract: Provided is a base station capable of appropriately applying precoding to a PDCCH. At the base station (100), a precoding control unit (105) sets a precoding granularity, which indicates a period in which the same precoding is used, to multiple control channels respectively disposed in different time resources. A transmission unit (108) transmits signals of the multiple control channels to a terminal (200) on the basis of the set precoding granularity.
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公开(公告)号:US20200322114A1
公开(公告)日:2020-10-08
申请号:US16904291
申请日:2020-06-17
Inventor: Ayako HORIUCHI , Lilei WANG , Alexander GOLITSCHEK EDLER VON ELBWART , Hidetoshi SUZUKI , Kazuki TAKEDA
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:US20200245264A1
公开(公告)日:2020-07-30
申请号:US16634070
申请日:2017-08-10
Inventor: Takashi IWAI , Lilei WANG , Hidetoshi SUZUKI , Tomofumi TAKATA , Ayako HORIUCHI
Abstract: In a terminal (100), a PH calculator (105) calculates one or more power headrooms, each of which being calculated for each beam, and a radio transmitter (108) transmits the one or more power headrooms for a number of beams, the number being determined in accordance with a type of power headroom, or a trigger condition serving as a trigger for power headroom reporting.
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