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公开(公告)号：US20190081671A1
公开(公告)日：2019-03-14
申请号：US16129771
申请日：2018-09-12
Applicant: MediaTek Inc.
Inventor： Weidong Yang , Chao-Cheng Su , Tzu-Han Chou , Lung-Sheng Tsai , Bo-Si Chen
IPC: H04B7/0456
Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) receives a first signal from a network node of a wireless network, with the first signal selecting one or more codewords or a codebook from a plurality of different codebooks within a master codebook as allowed precoders at transmission ranks. The UE also receives a second signal from the network node, with the second signal selecting a precoder among the allowed precoders for uplink (UL) transmission. The UE then processes data using the selected precoder and performs an UL transmission of the processed data to the network node.
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公开(公告)号：US09705581B2
公开(公告)日：2017-07-11
申请号：US14725183
申请日：2015-05-29
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chao-Cheng Su , Ju-Ya Chen
CPC classification number: H04B7/0617 , H04J11/0079 , H04J2011/0096 , H04L5/0023 , H04L5/005 , H04L27/2607 , H04L27/2613 , H04L27/2628 , H04L27/2655
Abstract: A beamforming system synchronization architecture is proposed to allow a receiving device to synchronize to a transmitting device in time, frequency, and spatial domain in the most challenging situation with very high pathloss. A detector at the receiving device detects the presence of control beams, synchronizes to the transmission and estimates the channel response by receiving pilot signals. The detector has low complexity when exploiting the structure of the pilot signals. The detector consists of three stages that break down the synchronization procedure into less complicated steps. The detector accurately estimates the parameters required for identifying the transmit device and performing subsequent data communication.
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公开(公告)号：US10541736B2
公开(公告)日：2020-01-21
申请号：US16129771
申请日：2018-09-12
Applicant: MediaTek Inc.
Inventor： Weidong Yang , Chao-Cheng Su , Tzu-Han Chou , Lung-Sheng Tsai , Bo-Si Chen
IPC: H04B7/0456
Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) receives a first signal from a network node of a wireless network, with the first signal selecting one or more codewords or a codebook from a plurality of different codebooks within a master codebook as allowed precoders at transmission ranks. The UE also receives a second signal from the network node, with the second signal selecting a precoder among the allowed precoders for uplink (UL) transmission. The UE then processes data using the selected precoder and performs an UL transmission of the processed data to the network node.
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公开(公告)号：US20160087707A1
公开(公告)日：2016-03-24
申请号：US14725183
申请日：2015-05-29
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chao-Cheng Su , Ju-Ya Chen
CPC classification number: H04B7/0617 , H04J11/0079 , H04J2011/0096 , H04L5/0023 , H04L5/005 , H04L27/2607 , H04L27/2613 , H04L27/2628 , H04L27/2655
Abstract: A beamforming system synchronization architecture is proposed to allow a receiving device to synchronize to a transmitting device in time, frequency, and spatial domain in the most challenging situation with very high pathloss. A detector at the receiving device detects the presence of control beams, synchronizes to the transmission and estimates the channel response by receiving pilot signals. The detector has low complexity when exploiting the structure of the pilot signals. The detector consists of three stages that break down the synchronization procedure into less complicated steps. The detector accurately estimates the parameters required for identifying the transmit device and performing subsequent data communication.
Abstract translation: 提出了一种波束成形系统同步架构，以允许接收设备在具有非常高的路径损耗的最具挑战性的情况下在时间，频率和空间域中与发射设备同步。 在接收设备处的检测器检测控制波束的存在，与传输同步并且通过接收导频信号来估计信道响应。 当利用导频信号的结构时，检测器具有低复杂度。 检测器由三个阶段组成，将同步过程分解成不太复杂的步骤。 检测器精确估计识别发射设备和执行后续数据通信所需的参数。
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公开(公告)号：US20160087706A1
公开(公告)日：2016-03-24
申请号：US14725159
申请日：2015-05-29
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chao-Cheng Su , Ju-Ya Chen
CPC classification number: H04B7/0617 , H04J11/0079 , H04J2011/0096 , H04L5/0023 , H04L5/005 , H04L27/2607 , H04L27/2613 , H04L27/2628 , H04L27/2655
Abstract: A beamforming system synchronization architecture is proposed to allow a receiving device to synchronize to a transmitting device in time, frequency, and spatial domain in the most challenging situation with very high pathloss. A periodically configured time-frequency resource blocks in which the transmitting device uses the same beamforming weights for its control beam transmission to the receiving device. A pilot signal for each of the control beams is transmitted in each of the periodically configured time-frequency resource blocks. Pilot symbols are inserted into pilot structures and repeated for L times in each pilot structure. The L repetitions can be implemented by one or more Inverse Fast Fourier Transfers (IFFTs) with corresponding one or more cyclic prefix (CP) lengths.
Abstract translation: 提出了一种波束成形系统同步架构，以允许接收设备在具有非常高的路径损耗的最具挑战性的情况下在时间，频率和空间域中与发射设备同步。 周期性配置的时间 - 频率资源块，其中发射设备使用相同的波束形成权重用于其对接收设备的控制波束传输。 在每个周期性配置的时间 - 频率资源块中传送每个控制波束的导频信号。 导频符号插入导频结构，并在每个导频结构中重复L次。 L个重复可以由一个或多个具有相应的一个或多个循环前缀（CP）长度的快速傅里叶逆变换（IFFT）来实现。
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Patent Agency Ranking
公开(公告)号：US11218288B2
公开(公告)日：2022-01-04
申请号：US16738071
申请日：2020-01-09
Applicant: Mediatek Inc.
Inventor： Tzu-Han Chou , Weidong Yang , Chao-Cheng Su , Jiann-Ching Guey
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives an indication for transmitting a particular DMRS sequence in an uplink transmission. The particular DMRS sequence is time domain based. The UE generates the particular DMRS sequence. The UE modulates the particular DMRS sequence to obtain a set of symbols. The UE maps a plurality of symbols of the set of symbols to a plurality of subcarriers. The UE transmits the plurality of symbols on the plurality of subcarriers.
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7.发明申请公开(公告)号：US20180254885A1
公开(公告)日：2018-09-06
申请号：US15906373
申请日：2018-02-27
Applicant: MediaTek Inc.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo , Chao-Cheng Su
Abstract: Techniques, schemes and examples pertaining to sequence design for synchronization and device identification in mobile communication systems are described. A processor of an apparatus generates a set of root sequences and also generates a set of signature sequences from the set of root sequences. The processor then transmits a signal comprising one or more of the signature sequences to a receiving device via a wireless channel. Each signature sequence of the set of signature sequences identifies the apparatus.
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公开(公告)号：US20180097677A1
公开(公告)日：2018-04-05
申请号：US15616277
申请日：2017-06-07
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo , Chao-Cheng Su
CPC classification number: H04L27/18 , H04L5/005 , H04L25/0226 , H04L27/261 , H04L27/2615
Abstract: Aspects of the disclosure provide an apparatus that includes a baseband processing circuit and a transmitting circuit. The baseband processing circuit is configured to encode a reference signal based on a specific sequence to generate a digital stream. The specific sequence has non-zero values at selected positions, and the number of coincidences of non-zero value positions between the specific sequence and a shifted copy of the specific sequence is smaller than a threshold. The transmitting circuit is configured to transmit wireless signals in response to the digital stream.
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公开(公告)号：US10707939B2
公开(公告)日：2020-07-07
申请号：US16149339
申请日：2018-10-02
Applicant: MediaTek Inc.
Inventor： Weidong Yang , Tzu-Han Chou , Chao-Cheng Su , Lung-Sheng Tsai , Bo-Si Chen
IPC: H04B7/06 , H04W76/27 , H04L5/00 , H04W72/04 , H04B7/0456 , H04L25/03 , H04B7/0404
Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) stores information with respect to a plurality of permutations with respect to a mapping between a plurality of sounding reference signal (SRS) resources and a plurality of antenna ports at the UE. The UE receives signaling from a network node of a wireless network. The signaling contains an index identifying a permutation among the plurality of permutations. The UE performs an uplink transmission of data to the network node using one or more SRS resources of the plurality of SRS resources and one or more antenna ports of the plurality of antenna ports according to the identified permutation.
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10.发明授权公开(公告)号：US10530565B2
公开(公告)日：2020-01-07
申请号：US15906373
申请日：2018-02-27
Applicant: MediaTek Inc.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo , Chao-Cheng Su
Abstract: Techniques, schemes and examples pertaining to sequence design for synchronization and device identification in mobile communication systems are described. A processor of an apparatus generates a set of root sequences and also generates a set of signature sequences from the set of root sequences. The processor then transmits a signal comprising one or more of the signature sequences to a receiving device via a wireless channel. Each signature sequence of the set of signature sequences identifies the apparatus.
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