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公开(公告)号：US20190159215A1
公开(公告)日：2019-05-23
申请号：US16190148
申请日：2018-11-14
Applicant: MediaTek Inc.
Inventor： Chao-Cheng Su , Weidong Yang , Tzu-Han Chou , Lung-Sheng Tsai
Abstract: Various examples pertaining to multi-transmit/receive point (TRP) interference control in wireless communications are described. A processor of a user equipment (UE) receives, from a network node, a downlink measurement reference signal and configures an interference measurement resource (IMR) associated with a sounding reference signal (SRS) resource of the UE based on the DL measurement reference signal. The processor measures a channel response of a communication channel between the UE and the network node. The processor also measures an interference using the IMR. The processor then generates a precoder based on the measured channel response and the measured interference. The processor further performs an uplink transmission to the network node using the precoder.
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公开(公告)号：US20180097554A1
公开(公告)日：2018-04-05
申请号：US15820436
申请日：2017-11-22
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. The same synchronization signal can be used for all stages of synchronization including initial coarse synchronization, device and beam identification, and channel estimation for data demodulation.
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公开(公告)号：US09882620B2
公开(公告)日：2018-01-30
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.
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公开(公告)号：US20160087765A1
公开(公告)日：2016-03-24
申请号：US14725138
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. The same synchronization signal can be used for all stages of synchronization including initial coarse synchronization, device and beam identification, and channel estimation for data demodulation.
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。 相同的同步信号可以用于包括初始粗同步，设备和波束识别以及用于数据解调的信道估计的所有同步阶段。
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公开(公告)号：US20200228299A1
公开(公告)日：2020-07-16
申请号：US16738120
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 determines an adjustment to a base DMRS sequence for generating the particular DMRS sequence. The UE generates the particular DMRS sequence based on the adjustment and the base 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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Patent Agency Ranking
公开(公告)号：US10594374B2
公开(公告)日：2020-03-17
申请号：US16136215
申请日：2018-09-19
Applicant: MediaTek Inc.
Inventor： Weidong Yang , Tzu-Han Chou , Chao-Cheng Su , Lung-Sheng Tsai
IPC: H04B7/02 , H04B7/0456 , H04B7/0404 , H04B7/06 , H04L5/00 , H04L25/02
Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) generates a codebook comprising a plurality of precoders. The UE processes information using the codebook and transmits the processed information to a network node of a wireless network. In generating the codebook, the UE selects a candidate precoder from a single-stage codebook or a dual-stage codebook and performs a permutation on the candidate precoder.
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公开(公告)号：US20190394733A1
公开(公告)日：2019-12-26
申请号：US16445592
申请日：2019-06-19
Applicant: Mediatek Inc.
Inventor： Weidong Yang , Tzu-Han Chou , Chao-Cheng Su
IPC: H04W52/42 , H04W52/14 , H04B1/04 , H04B7/0404 , H04B7/0456
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 reports, to a base station, a transmit capability of the UE. The UE receives, from the base station, a first signaling indicating a subset of codewords in a codebook and a second signaling selecting one of the codewords in the subset for precoding an uplink channel for transmission through a plurality of antenna ports over one or more spatial layers.
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公开(公告)号：US10389558B2
公开(公告)日：2019-08-20
申请号：US15616277
申请日：2017-06-07
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo , Chao-Cheng Su
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：US20190103907A1
公开(公告)日：2019-04-04
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
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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公开(公告)号：US20190089432A1
公开(公告)日：2019-03-21
申请号：US16136215
申请日：2018-09-19
Applicant: MediaTek Inc.
Inventor： Weidong Yang , Tzu-Han Chou , Chao-Cheng Su , Lung-Sheng Tsai
IPC: H04B7/0456 , H04B7/0404 , H04B7/06 , H04L25/02 , H04L5/00
CPC classification number: H04B7/0456 , H04B7/0404 , H04B7/0473 , H04B7/0486 , H04B7/0639 , H04B7/0695 , H04L5/0048 , H04L5/0051 , H04L5/0091 , H04L25/0224 , H04L25/03343 , H04L25/03891
Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) generates a codebook comprising a plurality of precoders. The UE processes information using the codebook and transmits the processed information to a network node of a wireless network. In generating the codebook, the UE selects a candidate precoder from a single-stage codebook or a dual-stage codebook and performs a permutation on the candidate precoder.
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