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公开(公告)号：US09998304B1
公开(公告)日：2018-06-12
申请号：US15615172
申请日：2017-06-06
Applicant: TrellisWare Technologies, Inc.
Inventor： Andreas Polydoros , Cenk Kose
IPC: H04K1/10 , H04L27/28 , H04L25/03 , H04B17/336 , H04L27/26 , H04L7/00 , H04L12/26 , H04L27/36 , H04L27/20
CPC classification number: H04L25/03159 , H04B17/336 , H04J11/0036 , H04L7/0008 , H04L25/03203 , H04L27/20 , H04L27/261 , H04L27/2647 , H04L27/2678 , H04L27/366 , H04L43/12
Abstract: Methods and systems for estimating and mitigating OFDM interference to enable reliable communications with minimal a priori knowledge of the interfering OFDM signal are presented. Embodiments of the present invention hypothesize modulation symbols from a reference signal set, which may not be identical to the interference signal set, and compute a channel sequence to minimize an error between the observed samples and a product of the channel sequence and the hypothesized modulation symbols. The interfering OFDM signal may be estimated and mitigated with no reliance on knowledge of the interference signal set, although this may result in the inability to decode and demodulate the interfering OFDM signal when embodiments of the present invention are extended from single-input single-output systems to multiple-input single-output systems.
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2.发明授权Method and system for controlling the peak-to-average power ratio of orthogonal frequency-domain signals 有权用于控制正交频域信号的峰均功率比的方法和系统公开(公告)号：US08879650B2
公开(公告)日：2014-11-04
申请号：US13662769
申请日：2012-10-29
Applicant: TrellisWare Technologies, Inc. (020945)
Inventor： Keith M. Chugg , Cenk Kose
CPC classification number: H04L27/2618 , H04L1/0042 , H04L1/0047 , H04L1/0057
Abstract: Systems and methods are presented for controlling the peak-to-average-power of a baseband orthogonal-frequency-domain multiplexing (OFDM) signal by designating a subset of the available subcarriers as information-bearing data-subcarriers, and loading remaining subcarriers by symbols that are a function of the symbols loading the data-subcarriers. At the receiver, the data-dependent subcarriers are optionally combined with data-subcarriers to increase error protection.
Abstract translation: 提出了系统和方法，用于通过将可用子载波的子集指定为带有信息的数据副载波，并通过符号加载剩余子载波来控制基带正交频域复用（OFDM）信号的峰均功率 这是加载数据子载波的符号的函数。 在接收机处，数据相关子载波可选地与数据子载波组合以增加错误保护。
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公开(公告)号：US20170250729A1
公开(公告)日：2017-08-31
申请号：US15374285
申请日：2016-12-09
Applicant: TrellisWare Technologies, Inc.
Inventor： Cenk Kose , Keith M. Chugg
CPC classification number: H04B1/715 , H04B1/10 , H04B2001/7152 , H04B2201/71353 , H04L25/03853
Abstract: The estimation and mitigation of swept-tone interferers includes receiving a composite signal comprising a signal of interest and a swept-tone interferer over an observation bandwidth or a hop bandwidth in a frequency-hopping system. The estimation of the interfering signal may be based on modeling the interferer as a magnitude periodic signal comprising non-overlapping, contiguous epochs, where each epoch may comprise a common pulse shape and a distinct phase rotation. The modeling may be based over the observation bandwidth, the hop bandwidth, or after combining the signal over all the frequency hop bandwidths. The period of the magnitude-periodic signal may be initially determined, and the common pulse shape and each of the distinct phase rotations may then be estimated. These estimates may be used to reconstruct an estimate of the swept-tone interferer, which may be subtracted from the composite signal to generate an interference-mitigated signal of interest.
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公开(公告)号：US20130107984A1
公开(公告)日：2013-05-02
申请号：US13662769
申请日：2012-10-29
Applicant: TrellisWare Technologies, Inc. (020945)
Inventor： Keith M. Chugg , Cenk Kose , Thomas R. Halford
IPC: H04L27/28
CPC classification number: H04L27/2618 , H04L1/0042 , H04L1/0047 , H04L1/0057
Abstract: Systems and methods are presented for controlling the peak-to-average-power of a baseband orthogonal-frequency-domain multiplexing (OFDM) signal by designating a subset of the available subcarriers as information-bearing data-subcarriers, and loading remaining subcarriers by symbols that are a function of the symbols loading the data-subcarriers. At the receiver, the data-dependent subcarriers are optionally combined with data-subcarriers to increase error protection.
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5.发明授权公开(公告)号：US09543994B1
公开(公告)日：2017-01-10
申请号：US15053966
申请日：2016-02-25
Applicant: TrellisWare Technologies, Inc.
Inventor： Cenk Kose , Keith M. Chugg
IPC: H04B1/7097 , H04B1/10
CPC classification number: H04B1/10
Abstract: The estimation and mitigation of swept-tone interferers includes receiving a composite signal comprising a signal of interest and a swept-tone interferer over an observation bandwidth. The estimation of the interfering signal may be based on modeling the interferer over the observation bandwidth as a magnitude periodic signal comprising non-overlapping, contiguous epochs, where each epoch may comprise a common pulse shape and a distinct phase rotation. The period of the magnitude-periodic signal may be initially determined, and the common pulse shape and each of the distinct phase rotations may then be estimated. These estimates may be used to reconstruct an estimate of the swept-tone interferer, which may be subtracted from the composite signal to generate an interference-mitigated signal of interest.
Abstract translation: 扫频调制干扰源的估计和减轻包括在观测带宽上接收包括感兴趣信号和扫频调制干扰信号的复合信号。 干扰信号的估计可以基于将观测带宽上的干扰源建模为包括非重叠的连续历元的幅度周期信号，其中每个历元可以包括公共脉冲形状和明显的相位旋转。 可以初始确定幅度周期信号的周期，然后可以估计公共脉冲形状和每个不同的相位旋转。 可以使用这些估计来重建扫频调制干扰源的估计，其可以从复合信号中减去以产生感兴趣的干扰减轻信号。
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Patent Agency Ranking
6.发明申请METHODS AND SYSTEMS FOR INTERFERENCE ESTIMATION VIA QUANTIZATION IN SPREAD-SPECTRUM SYSTEMS 有权用于干扰估计的方法和系统通过扩频系统中的量化公开(公告)号：US20160226554A1
公开(公告)日：2016-08-04
申请号：US14610553
申请日：2015-01-30
Applicant: TrellisWare Technologies, Inc.
Inventor： Keith M. Chugg , Cenk Kose
CPC classification number: H04B1/7101 , H04B1/1036 , H04B2001/1063 , H04B2201/70706
Abstract: A method for interference estimation and mitigation includes receiving a high-resolution digital signal. The high-resolution digital signal comprises a signal of interest and an interfering signal. An estimate of the interfering signal is generated using a quantizer. The signal of interest is in a quantization noise of the quantizer. An interference-mitigated signal of interest is generated based on a difference of the estimate of the interfering signal and the high-resolution digital signal.
Abstract translation: 一种用于干扰估计和减轻的方法包括接收高分辨率数字信号。 高分辨率数字信号包括感兴趣的信号和干扰信号。 使用量化器产生干扰信号的估计。 感兴趣的信号处于量化器的量化噪声中。 基于干扰信号和高分辨率数字信号的估计的差异来产生感兴趣的干扰减轻信号。
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公开(公告)号：US09749006B1
公开(公告)日：2017-08-29
申请号：US15374285
申请日：2016-12-09
Applicant: TrellisWare Technologies, Inc.
Inventor： Cenk Kose , Keith M. Chugg
CPC classification number: H04B1/715 , H04B1/10 , H04B2001/7152 , H04B2201/71353 , H04L25/03853
Abstract: The estimation and mitigation of swept-tone interferers includes receiving a composite signal comprising a signal of interest and a swept-tone interferer over an observation bandwidth or a hop bandwidth in a frequency-hopping system. The estimation of the interfering signal may be based on modeling the interferer as a magnitude periodic signal comprising non-overlapping, contiguous epochs, where each epoch may comprise a common pulse shape and a distinct phase rotation. The modeling may be based over the observation bandwidth, the hop bandwidth, or after combining the signal over all the frequency hop bandwidths. The period of the magnitude-periodic signal may be initially determined, and the common pulse shape and each of the distinct phase rotations may then be estimated. These estimates may be used to reconstruct an estimate of the swept-tone interferer, which may be subtracted from the composite signal to generate an interference-mitigated signal of interest.
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8.发明授权Methods and systems for interference estimation via quantization in spread-spectrum systems 有权用于通过扩频系统中的量化进行干扰估计的方法和系统公开(公告)号：US09503154B2
公开(公告)日：2016-11-22
申请号：US14610553
申请日：2015-01-30
Applicant: TrellisWare Technologies, Inc.
Inventor： Keith M. Chugg , Cenk Kose
CPC classification number: H04B1/7101 , H04B1/1036 , H04B2001/1063 , H04B2201/70706
Abstract: A method for interference estimation and mitigation includes receiving a high-resolution digital signal. The high-resolution digital signal comprises a signal of interest and an interfering signal. An estimate of the interfering signal is generated using a quantizer. The signal of interest is in a quantization noise of the quantizer. An interference-mitigated signal of interest is generated based on a difference of the estimate of the interfering signal and the high-resolution digital signal.
Abstract translation: 一种用于干扰估计和减轻的方法包括接收高分辨率数字信号。 高分辨率数字信号包括感兴趣的信号和干扰信号。 使用量化器产生干扰信号的估计。 感兴趣的信号处于量化器的量化噪声中。 基于干扰信号和高分辨率数字信号的估计的差异来产生感兴趣的干扰减轻信号。
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9.发明授权Method and system for controlling the peak-to-average power ratio of orthogonal frequency-domain signals 有权用于控制正交频域信号的峰均功率比的方法和系统公开(公告)号：US09172573B2
公开(公告)日：2015-10-27
申请号：US14495658
申请日：2014-09-24
Applicant: TrellisWare Technologies, Inc.
Inventor： Keith M. Chugg , Cenk Kose , Thomas R. Halford
CPC classification number: H04L27/2618 , H04L1/0042 , H04L1/0047 , H04L1/0057
Abstract: Systems and methods are presented for controlling the peak-to-average-power of a baseband orthogonal-frequency-domain multiplexing (OFDM) signal by designating a subset of the available subcarriers as information-bearing data-subcarriers, and loading remaining subcarriers by symbols that are a function of the symbols loading the data-subcarriers. At the receiver, the data-dependent subcarriers are optionally combined with data-subcarriers to increase error protection.
Abstract translation: 提出了系统和方法，用于通过将可用子载波的子集指定为带有信息的数据副载波，并通过符号加载剩余子载波来控制基带正交频域复用（OFDM）信号的峰均功率 这是加载数据子载波的符号的函数。 在接收机处，数据相关子载波可选地与数据子载波组合以增加错误保护。
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10.发明申请METHOD AND SYSTEM FOR CONTROLLING THE PEAK-TO-AVERAGE POWER RATIO OF ORTHOGONAL FREQUENCY-DOMAIN SIGNALS 有权用于控制正交频域信号的峰值平均功率比的方法和系统公开(公告)号：US20150010116A1
公开(公告)日：2015-01-08
申请号：US14495658
申请日：2014-09-24
Applicant: TrellisWare Technologies, Inc.
Inventor： Keith M. Chugg , Cenk Kose , Thomas R. Halford
CPC classification number: H04L27/2618 , H04L1/0042 , H04L1/0047 , H04L1/0057
Abstract: Systems and methods are presented for controlling the peak-to-average-power of a baseband orthogonal-frequency-domain multiplexing (OFDM) signal by designating a subset of the available subcarriers as information-bearing data-subcarriers, and loading remaining subcarriers by symbols that are a function of the symbols loading the data-subcarriers. At the receiver, the data-dependent subcarriers are optionally combined with data-subcarriers to increase error protection.
Abstract translation: 提出了系统和方法，用于通过将可用子载波的子集指定为带有信息的数据副载波，并通过符号加载剩余子载波来控制基带正交频域复用（OFDM）信号的峰均功率 这是加载数据子载波的符号的函数。 在接收机处，数据相关子载波可选地与数据子载波组合以增加错误保护。
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