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公开(公告)号：US09231647B2
公开(公告)日：2016-01-05
申请号：US14219938
申请日：2014-03-19
Applicant: TrellisWare Technologies, Inc.
Inventor： Andreas Polydoros , Mark Johnson , Thomas R. Halford , Michael P Fitz , Scott W Enserink
CPC classification number: H04B1/62 , H04B1/1027 , H04L5/1461
Abstract: An apparatus for joint analog and digital interference cancellation includes a receiver configured to receive an analog reference interfering signal on a reference path, and a sum of an analog interference signal and an analog signal of interest on an antenna path. An analog interference canceller may be configured to produce an analog partially interference-cancelled signal using the analog reference interfering signal and the sum of the analog interference signal and the analog signal of interest. A first analog-to-digital converter may be configured to digitize the analog reference interfering signal to produce a digital reference interfering signal. A second analog-to-digital converter may be configured to digitize the analog partially interference-cancelled signal to produce a digital partially interference-cancelled signal. A digital interference canceller may be configured to produce an interference-cancelled signal using the digital reference interfering signal and the digital partially interference-cancelled signal.
Abstract translation: 用于联合模拟和数字干扰消除的装置包括被配置为在参考路径上接收模拟参考干扰信号的接收机，以及天线路径上的模拟干扰信号和感兴趣的模拟信号之和。 模拟干扰消除器可以被配置为使用模拟参考干扰信号和模拟干扰信号和感兴趣的模拟信号的和产生模拟部分干扰消除信号。 第一模数转换器可以被配置为数字化模拟参考干扰信号以产生数字参考干扰信号。 第二模数转换器可以被配置为数字化模拟部分干扰消除信号以产生数字部分干扰消除信号。 数字干扰消除器可以被配置为使用数字参考干扰信号和数字部分干扰消除信号来产生干扰消除信号。
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公开(公告)号：US20150270865A1
公开(公告)日：2015-09-24
申请号：US14219938
申请日：2014-03-19
Applicant: TrellisWare Technologies, Inc.
Inventor： Andreas Polydoros , Mark Johnson , Thomas R. Halford , Michael P. Fitz , Scott W. Enserink
CPC classification number: H04B1/62 , H04B1/1027 , H04L5/1461
Abstract: An apparatus for joint analog and digital interference cancellation includes a receiver configured to receive an analog reference interfering signal on a reference path, and a sum of an analog interference signal and an analog signal of interest on an antenna path. An analog interference canceller may be configured to produce an analog partially interference-cancelled signal using the analog reference interfering signal and the sum of the analog interference signal and the analog signal of interest. A first analog-to-digital converter may be configured to digitize the analog reference interfering signal to produce a digital reference interfering signal. A second analog-to-digital converter may be configured to digitize the analog partially interference-cancelled signal to produce a digital partially interference-cancelled signal. A digital interference canceller may be configured to produce an interference-cancelled signal using the digital reference interfering signal and the digital partially interference-cancelled signal.
Abstract translation: 用于联合模拟和数字干扰消除的装置包括被配置为在参考路径上接收模拟参考干扰信号的接收机，以及天线路径上的模拟干扰信号和感兴趣的模拟信号之和。 模拟干扰消除器可以被配置为使用模拟参考干扰信号和模拟干扰信号和感兴趣的模拟信号的和产生模拟部分干扰消除信号。 第一模数转换器可以被配置为数字化模拟参考干扰信号以产生数字参考干扰信号。 第二模数转换器可以被配置为数字化模拟部分干扰消除信号以产生数字部分干扰消除信号。 数字干扰消除器可以被配置为使用数字参考干扰信号和数字部分干扰消除信号来产生干扰消除信号。
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Patent Agency Ranking
公开(公告)号：US20240259235A1
公开(公告)日：2024-08-01
申请号：US18289600
申请日：2022-05-06
Applicant: TrellisWare Technologies, Inc.
Inventor： Cenk Köse , Young YOON , Peter James Sallaway , Bruce Coy , Scott W. Enserink , Andreas Polydoros
CPC classification number: H04L25/0202 , H04W56/0055
Abstract: Devices, systems and methods for collaborative wireless communication in a wireless network are described. One example method includes performing a bidirectional communication with a reference node in the source cluster, receiving, from a destination cluster comprising a second plurality of nodes, a probe generated using a phase associated with the destination cluster, estimating, based on a propagation delay of the probe, a delay parameter, generating, based on the phase associated with the destination cluster and the delay parameter, a channel estimate, and transmitting, to each of the second plurality of nodes, a common message generated using a phase value and a delay value, wherein the phase value and the delay value are derived based on the channel estimate, and wherein the destination cluster is remotely located from the source cluster.
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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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公开(公告)号：US20250070819A1
公开(公告)日：2025-02-27
申请号：US18813417
申请日：2024-08-23
Applicant: TrellisWare Technologies, Inc.
Inventor： Andreas Polydoros , Cenk Köse
Abstract: Methods and systems for low-complexity channel profiling in frequency-hopped (FH) direct-sequence spread spectrum (DSSS) wireless communication systems are described. An example system includes a receiver configured to receive, over a channel, a FH DSSS signal associated with multiple frequency hops, and a processor configured to perform, using a first subset of the multiple frequency hops, a timing acquisition operation using a full correlative processing operation. The receiver is then configured to perform, subsequent to the timing acquisition operation and using a second subset of the multiple frequency hops, a predominant delay estimation operation, where estimating predominant channel delays excludes using the full correlative processing operation, and finally compute, based on an output of the predominant delay estimation operation, a channel estimate comprising an estimate of each of a number of channel taps that represent the channel, and where each channel tap estimate comprises a gain, a phase, and a delay.
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公开(公告)号：US10931350B2
公开(公告)日：2021-02-23
申请号：US16513642
申请日：2019-07-16
Applicant: TrellisWare Technologies, Inc.
Inventor： Andreas Polydoros , Cenk Köse
IPC: H04B7/06 , H04B17/309 , H04W72/04 , H04L25/02
Abstract: Devices, systems and methods for collaborative wireless communication in a wireless network are described. One example method includes performing, by a first node of a plurality of nodes, a communication with at least a second node of the plurality of nodes, receiving, by the first node from a destination node of the plurality of nodes, a probe, computing, based on the probe, a phase of a strongest tap of a channel estimate between the first node and the destination node, computing a phase correction based on the phase of the strongest tap and a phase difference between a first phase of the first node and a second phase of a reference node, wherein the phase difference is based on the communication, and transmitting, to the destination node, a message with the phase correction.
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公开(公告)号：US20210021311A1
公开(公告)日：2021-01-21
申请号：US16513642
申请日：2019-07-16
Applicant: TrellisWare Technologies, Inc.
Inventor： Andreas Polydoros , Cenk Köse
IPC: H04B7/06 , H04B17/309 , H04L25/02 , H04W72/04
Abstract: Devices, systems and methods for collaborative wireless communication in a wireless network are described. One example method includes performing, by a first node of a plurality of nodes, a communication with at least a second node of the plurality of nodes, receiving, by the first node from a destination node of the plurality of nodes, a probe, computing, based on the probe, a phase of a strongest tap of a channel estimate between the first node and the destination node, computing a phase correction based on the phase of the strongest tap and a phase difference between a first phase of the first node and a second phase of a reference node, wherein the phase difference is based on the communication, and transmitting, to the destination node, a message with the phase correction.
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