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公开(公告)号:US11659561B2
公开(公告)日:2023-05-23
申请号:US17235789
申请日:2021-04-20
Inventor: Lilei Wang , Hidetoshi Suzuki , Chi Gao , Masayuki Hoshino
IPC: H04W72/04 , H04W72/0446 , H04W72/0453
CPC classification number: H04W72/042 , H04W72/0446 , H04W72/0453
Abstract: Provided are wireless communication methods, an eNB and a UE. The wireless communication method performed by an eNB includes transmitting downlink control information (DCI) to a user equipment (UE), wherein the DCI is designed based on a coverage enhancement level for the UE.
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公开(公告)号:US11646924B2
公开(公告)日:2023-05-09
申请号:US17896863
申请日:2022-08-26
CPC classification number: H04L27/2602 , H04L5/005 , H04L5/0025 , H04L5/0051 , H04L27/26 , H04L27/2605 , H04L27/2613 , H04W72/12 , H04W72/23 , H04L5/0007 , H04L27/2603
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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公开(公告)号:US20220141829A1
公开(公告)日:2022-05-05
申请号:US17578038
申请日:2022-01-18
Inventor: Masayuki Hoshino , Ayako Horiuchi , Seigo Nakao
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:US11122593B2
公开(公告)日:2021-09-14
申请号:US16081761
申请日:2016-03-30
Abstract: A base station is disclosed, which is capable of appropriately configuring the timings of data assignment, data transmission and reception, and feedback for a case where the DL and UL sTTI lengths are different from each other. In this base station (100), a transmission section (106) transmits a downlink signal using a first short transmission time interval (sTTI) shortened in length than a TTI and used for downlink; and a reception section (107) receives an uplink signal using a second sTTI shortened in length than the TTI and used for uplink. When the first sTTI is shorter in length than the second sTTI, the reception section (107) receives the uplink signal in the second sTTI positioned after a predetermined interval from the transmission timing of the downlink signal, the predetermined interval being configured based on the length of the first sTTI.
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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:US10863552B2
公开(公告)日:2020-12-08
申请号:US16692208
申请日:2019-11-22
Inventor: Li Wang , Hidetoshi Suzuki , Joachim Loehr , Michael Einhaus , Lilei Wang , Masayuki Hoshino
Abstract: Provided are a user equipment (UE), an eNode B (eNB) and a wireless communication method for Licensed-Assisted Access (LAA). A UE for LAA according to one embodiment can comprise: a first circuit operative to perform a first listen-before-talk (LBT) in a system bandwidth; a second circuit operative to perform a second LBT in an allocated bandwidth; and a transmitter operative to transmit a signal in the allocated bandwidth if the first LBT is unsuccessful and the second LBT is successful.
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公开(公告)号:US10659268B2
公开(公告)日:2020-05-19
申请号:US16395889
申请日:2019-04-26
Inventor: Chi Gao , Li Wang , Lilei Wang , Hidetoshi Suzuki , Masayuki Hoshino
Abstract: Provided are wireless communication methods and devices. In one embodiment, a wireless communication method performed by a wireless communication device comprises: transmitting a data packet repeatedly in multiple subframes including at least one normal subframe and at least one special subframe to another wireless communication device, wherein the available resources in the special subframe are different from that in the normal subframe, the data packet includes multiple modulated symbols which are divided into multiple modulated-symbol sets, in each subframe, each OFDM symbol is mapped by one of the modulated-symbol sets, and in every subframe, the modulated symbols in the same modulated-symbol set are mapped onto REs in one OFDM symbol in a fixed order. In another embodiment, multiple repetitions of the data packet are transmitted in each subframe, and in each special subframe, different repetitions are mapped onto REs with cyclic shift.
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公开(公告)号:US10609580B2
公开(公告)日:2020-03-31
申请号:US15653148
申请日:2017-07-18
Inventor: Tetsuya Yamamoto , Hidetoshi Suzuki , Masayuki Hoshino
IPC: H04W24/06 , H04L1/08 , H04B7/10 , H04L27/26 , H04L5/00 , H04B7/08 , H04B7/155 , H04L1/18 , H04B17/309 , H04B17/00 , H04W72/08
Abstract: A repeater generates repetition signals by repeating uplink signals over a plurality of subframes; controller sets a timing for transmitting the repetition signals, based on information indicating a transmission candidate subframe for a sounding reference signal used for measuring an uplink reception quality; and a transmitter transmits the repetition signals at the set timing.
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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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公开(公告)号:US10292177B2
公开(公告)日:2019-05-14
申请号:US15432772
申请日:2017-02-14
Inventor: Li Wang , Alexander Golitschek Edler Von Elbwart , Michael Einhaus , Hidetoshi Suzuki , Lilei Wang , Masayuki Hoshino
Abstract: Provided are a resource scheduling method, a resource determining method, an eNB, and a user equipment. The resource scheduling method for wireless communication is performed by the eNB. The wireless communication involves at least a first carrier and a second carrier. The resource scheduling method includes: transmitting a DCI in the first carrier to a UE to schedule downlink resources for a PDSCH of the second carrier, wherein the eNB is able to start transmitting a burst in the second carrier at a flexible time independent of the subframe boundaries of the second carrier after the second carrier is occupied by the eNB, and the DCI for a flexible PDSCH of the burst different from the normal PDSCH of the second carrier contains information on the time period scheduled for the flexible PDSCH. The flexible PDSCH and its corresponding RS can reuse the DwPTS subframe structure for minimal specification impact.
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