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1. 发明申请

WO2021201817A1 AMPLIFICATION APPARATUS, DEVICE AND METHOD FOR A TAP OF A CABLE COMMUNICATION NETWORK 审中-公开
公开(公告)号：WO2021201817A1
公开(公告)日：2021-10-07
申请号：PCT/US2020/025633
申请日：2020-03-30
申请人： INTEL CORPORATION
发明人： HEWAVITHANA, Thushara , GOICHBERG, Nathan
IPC分类号： H04B3/04 , H04B3/32 , H04B3/46
摘要： Examples relate to an amplification apparatus, device or method, to a Tap for a cable com- munication network comprising an amplification apparatus or device, and to a cable commu- nication network comprising an amplification apparatus or device. The amplification appa- ratus comprises interface circuitry for exchanging a first version of a shared signal with a first component of the cable communication network. The shared signal is based on a frequency spectrum comprising at least a first frequency band and a second frequency band. The ampli- fication apparatus comprises interface circuitry for exchanging a second version of the shared signal with a second component of the cable communication network. The amplification ap- paratus comprises amplifier circuitry configured to selectively amplify the first frequency band of the frequency spectrum of the shared signal, such that the first frequency band is amplified in the second version of the shared signal.

2. 发明申请

WO2018015076A1 INTERFERENCE MITIGATION 审中-公开
标题翻译：干扰缓解
公开(公告)号：WO2018015076A1
公开(公告)日：2018-01-25
申请号：PCT/EP2017/064539
申请日：2017-06-14
申请人： INTEL CORPORATION , ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara
发明人： ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara
IPC分类号： H04B1/10 , H04L25/08
摘要： Symbols are received on a downstream channel. A value of a channel synchronization parameter is determined based on the received symbols. An interference event (560) on the downstream channel (151) is detected (562). In response to detecting the interference event (560): an output signal is determined based on at least one cached value of the channel synchronization parameter, the at least one cached value being determined based on symbols received prior to and offset from said detecting (562) of the interference event (560).
摘要翻译：
符号在下行通道上接收。基于接收到的符号来确定信道同步参数的值。检测下游信道（151）上的干扰事件（560）（562）。响应于检测到干扰事件（560）：基于信道同步参数的至少一个高速缓存值确定输出信号，所述至少一个高速缓存值是基于在所述检测（562）之前接收到并从所述检测（562）偏移的符号确定的）的干扰事件（560）。

3. 发明申请

WO2013074119A1 INTER CARRIER INTERFERENCE CANCELLATION FOR ORTHOGONAL FREQUENCY DOMAIN MULTIPLEXING RECEIVERS 审中-公开
标题翻译：正交频域多路复用接收机的双载波干扰消除
公开(公告)号：WO2013074119A1
公开(公告)日：2013-05-23
申请号：PCT/US2011/061405
申请日：2011-11-18
申请人： INTEL CORPORATION , HEWAVITHANA, Thushara , SHUKLA, Parveen K. , ARAMBEPOLA, Bernard
发明人： HEWAVITHANA, Thushara , SHUKLA, Parveen K. , ARAMBEPOLA, Bernard
IPC分类号： H04L27/26 , H04L27/01 , H04L1/00
CPC分类号： H04B1/10 , H04L1/005 , H04L25/022 , H04L25/03159 , H04L25/03821 , H04L27/2647
摘要： Apparatus and methods are described to perform inter carrier interference (ICI) reduction or cancellation in an orthogonal frequency domain multiplexing (OFDM) receiver. A first and a second stage of ICI cancellation may be performed before inputting an estimated transmitted data carrier for forward error correction. Forward error correction may include a signal re-correction and reconstruction of the estimated transmitted data carrier prior to a further stage of ICI cancellation.
摘要翻译：描述了在正交频域复用（OFDM）接收机中执行载波间干扰（ICI）减少或消除的装置和方法。可以在输入用于前向纠错的估计的发送数据载体之前执行ICI取消的第一和第二阶段。前向纠错可以包括在ICI取消的进一步阶段之前的估计的传输数据载体的信号重新校正和重构。

4. 发明申请

WO2012087445A1 CHANNEL ESTIMATION FOR DVB-T2 DEMODULATION USING AN ADAPTIVE PREDICTION TECHNIQUE 审中-公开
标题翻译：使用自适应预测技术的DVB-T2解调的信道估计
公开(公告)号：WO2012087445A1
公开(公告)日：2012-06-28
申请号：PCT/US2011/059925
申请日：2011-11-09
申请人： INTEL CORPORATION , SHUKLA, Parveen K. , ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara , GAMAGE, Shahan S.
发明人： SHUKLA, Parveen K. , ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara , GAMAGE, Shahan S.
IPC分类号： H04L27/26 , H04N17/00
CPC分类号： H04L25/022 , H04L25/0226 , H04L25/0232 , H04L25/025 , H04L27/2647
摘要： According to various embodiments, a method is disclosed that includes receiving an orthogonal frequency-division multiplexing (OFDM) modulated signal at a modulator; filtering the received modulated signal using a plurality of sets of filter coefficients with a linear predictor algorithm; and estimating a channel frequency response based on the filtering.
摘要翻译：根据各种实施例，公开了一种在调制器处接收正交频分复用（OFDM）调制信号的方法; 使用具有线性预测器算法的多组滤波器系数对所接收的调制信号进行滤波; 以及基于所述滤波来估计信道频率响应。

5. 发明申请

WO2023048714A1 RADAR APPARATUS, SYSTEM, AND METHOD 审中-公开
公开(公告)号：WO2023048714A1
公开(公告)日：2023-03-30
申请号：PCT/US2021/051721
申请日：2021-09-23
申请人： INTEL CORPORATION
发明人： SICRON, Merav , SHABTAY, Ophir , SHALITA, Oren , HEWAVITHANA, Thushara , BANIN, Leor , AMIZUR, Yuval
IPC分类号： G01S7/00 , G01S7/02 , G01S7/40 , G01S13/87 , G01S13/931 , B60W40/02
摘要： Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, a radar system may include a plurality of radar devices. For example, a radar device may include one or more Transmit (Tx) antennas to transmit radar Tx signals, one or more Receive (Rx) antennas to receive radar Rx signals, and a processor to generate radar information based on the radar Rx signals. In one example, the radar system may be implemented as part of a vehicle. In other aspects, the radar system may include any other additional or alternative elements and/or may be implemented as part of any other device or system.

6. 发明申请

WO2014099022A1 TECHNIQUES FOR MANAGING INTERFERENCE IN MULTIPLE CHANNEL COMMUNICATIONS SYSTEM 审中-公开
标题翻译：用于管理多通道通信系统干扰的技术
公开(公告)号：WO2014099022A1
公开(公告)日：2014-06-26
申请号：PCT/US2013/048382
申请日：2013-06-27
申请人： INTEL CORPORATION , ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara
发明人： ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara
IPC分类号： H04B1/10
CPC分类号： H04L27/0008 , H04L5/0007 , H04L5/0028 , H04L5/0062 , H04L27/0006 , H04L27/2626 , H04L27/362
摘要： An apparatus may include a processor circuit, and a dynamic filter adjustment component for execution on the processor. The dynamic filter adjustment component may identify in a wideband communications signal a set of one or more interferer frequencies for one or more respective interferer channels of a set of communications channels to be filtered, select a kernel filter comprising a low pass filter having a channel width corresponding to a channel of the one or more interferer channels, and generate a co-channel interference (CCI) filter to stop the one or more interferer channels by inverting the kernel filter. Other embodiments are described and claimed.
摘要翻译：一种装置可以包括处理器电路和用于在处理器上执行的动态滤波器调整组件。动态滤波器调整组件可以在宽带通信信号中识别要被滤波的一组通信信道中的一个或多个相应干扰信道的一个或多个干扰信号频率的集合，选择包含低通滤波器的核心滤波器，该低通滤波器具有信道宽度对应于一个或多个干扰信道的信道，并且产生同信道干扰（CCI）滤波器，以通过反转内核滤波器来停止一个或多个干扰信道。描述和要求保护其他实施例。

7. 发明申请

WO2014065894A1 METHODS AND SYSTEMS TO MITIGATE IMPULSE INTERFERENCE 审中-公开
标题翻译：减轻干扰的方法和系统
公开(公告)号：WO2014065894A1
公开(公告)日：2014-05-01
申请号：PCT/US2013/047348
申请日：2013-06-24
申请人： INTEL CORPORATION , HEWAVITHANA, Thushara , ARAMBEPOLA, Bernard , GAMAGE, Sahan S.
发明人： HEWAVITHANA, Thushara , ARAMBEPOLA, Bernard , GAMAGE, Sahan S.
IPC分类号： H04L27/34 , H04L12/26
CPC分类号： H04L27/38 , H04L25/067 , H04L27/2649
摘要： Methods and systems to mitigate impulse interference in an OFDM QAM signal. A per-symbol noise measure, or quality measure (QM) is computed for a symbol k as a MSE of distances between carriers in the symbol and points of corresponding QAM constellations. MSE(k) is averaged over multiple symbols to compute a background signal QM, AVG_MSE(k). If MSE(k) exceeds AVG_MSE(k) by a moderate amount, symbol k may be moderately affected by impulse interference, and per-carrier SNR estimates are downgraded for all data carriers in symbol k, prior to LLR computation. SNR downgrading may be linear or step-wise based on an extent to which MSE(k) exceeds AVG_MSE(k). If MSE(k) exceeds AVG_MSE(k) by a significant amount, symbol k may be significantly affected by impulse interference, and LLRs may be set to indicate that all data carriers are erased in symbol k.
摘要翻译：减少OFDM QAM信号脉冲干扰的方法和系统。针对符号k计算每符号噪声测量或质量测量（QM），作为符号中的载波与相应QAM星座的点之间的距离的MSE。 MSE（k）在多个符号之间进行平均以计算背景信号QM，AVG_MSE（k）。如果MSE（k）超过AVG_MSE（k）中等量，则符号k可能受脉冲干扰的适度影响，并且在LLR计算之前，符号k中的所有数据载波的每载波SNR估计被降级。基于MSE（k）超过AVG_MSE（k）的程度，SNR降级可以是线性的或逐步的。如果MSE（k）超过AVG_MSE（k）大量，则符号k可能受脉冲干扰的显着影响，并且可以将LLR设置为指示所有数据载体在符号k中被擦除。

8. 发明申请

WO2013137891A1 AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEX (OFDM) DEMODULATOR WITH IMPROVED CYCLIC AMBIGUITY RESOLUTION 审中-公开
标题翻译：具有改进的循环系数分辨率的正交频分多分辨率（OFDM）解调器
公开(公告)号：WO2013137891A1
公开(公告)日：2013-09-19
申请号：PCT/US2012/029297
申请日：2012-03-15
申请人： INTEL CORPORATION , ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara
发明人： ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara
IPC分类号： H04L27/26 , H04L27/01 , H04L27/34
CPC分类号： H04L27/22 , H04L25/03159 , H04L27/01 , H04L27/26 , H04L27/2665 , H04L27/2672 , H04L27/2675 , H04L27/2679 , H04L27/2695
摘要： A system according to one embodiment includes a demodulator configured to receive an OFDM modulated signal over a channel, the signal including a sequence of symbols, each of the symbols including one or more pilot carriers and one or more data carriers; a time filtering and interpolation circuit coupled to the demodulator, the time filtering and interpolation circuit configured to estimate the frequency response of the channel based on time filtering and interpolation of the pilot carriers; a phase slope correction circuit configured to apply each of a plurality of phase slope corrections to the frequency response and to the data carriers; a frequency filtering and interpolation circuit configured to calculate frequency response estimates of the channel at data carrier frequencies based on frequency filtering and interpolation of the phase slope corrected frequency response; an equalization circuit configured to equalize the phase slope corrected data carriers based on the calculated frequency response estimates; an error calculation circuit configure to calculate the mean square error between the equalized data carriers and a nearest QAM constellation point; and an iterative phase slope optimization circuit configured to select the phase slope correction associated with the minimum of the mean square errors, wherein the selected phase slope resolves the cyclic ambiguity.
摘要翻译：根据一个实施例的系统包括：解调器，被配置为通过信道接收OFDM调制信号，所述信号包括符号序列，每个符号包括一个或多个导频载波和一个或多个数据载波; 耦合到解调器的时间滤波和内插电路，所述时间滤波和内插电路被配置为基于导频载波的时间滤波和内插来估计信道的频率响应; 相位斜率校正电路，被配置为对频率响应和数据载波施加多个相位斜率校正中的每一个; 频率滤波和内插电路，被配置为基于频率滤波和相位斜率校正频率响应的内插来计算数据载波频率处的信道的频率响应估计; 均衡电路，被配置为基于所计算的频率响应估计来均衡相位斜率校正数据载波; 误差计算电路，用于计算均衡数据载波与最近的QAM星座点之间的均方误差; 以及迭代相位斜率优化电路，被配置为选择与所述均方误差的最小值相关联的相位斜率校正，其中所选择的相位斜率解决所述循环模糊度。

9. 发明申请

WO2013130042A1 DYNAMIC OPTIMIZATION OF CARRIER RECOVERY PERFORMANCE FOR COMMUNICATIONS SYSTEMS 审中-公开
标题翻译：通信系统载波恢复性能动态优化
公开(公告)号：WO2013130042A1
公开(公告)日：2013-09-06
申请号：PCT/US2012/026882
申请日：2012-02-28
申请人： HEWAVITHANA, Thushara , ARAMBEPOLA, Bernard , INTEL CORPORATION
发明人： HEWAVITHANA, Thushara , ARAMBEPOLA, Bernard
IPC分类号： H04L7/04 , H03L7/08
CPC分类号： H04L7/0331 , H03L7/08 , H03L7/0807 , H03L7/093 , H04L7/04 , H04L27/2271
摘要： Apparatuses, systems, and methods are directed to maintaining optimal carrier tracking performance in view of operating conditions that prevail. Such configurations employ a phase lock loop that configured to generate an estimated phase error value, a variance module configured to calculate a phase noise variance based on the estimated phase error value, and a loop control bandwidth module that calculates a loop bandwidth value based on a detected lower phase noise variance, generates modified loop filter values in accordance with the calculated loop bandwidth value, and updates the phase lock loop with the modified loop filter values. During subsequent iterations, the modified loop filter values are incrementally adjusted along a particular direction until the phase noise variance increases at which point the modified loop filter values are incrementally adjusted in an opposite direction to converge on an optimal loop bandwidth value.
摘要翻译：设备，系统和方法旨在根据现行的运行条件来维持最佳的载波跟踪性能。这样的配置采用配置成产生估计的相位误差值的相位锁定环路，配置成基于估计的相位误差值来计算相位噪声方差的方差模块，以及环路控制带宽模块，该环路控制带宽模块基于检测到较低的相位噪声方差，根据计算出的环路带宽值产生修正的环路滤波器值，并用修改的环路滤波器值更新锁相环。在随后的迭代中，修改的环路滤波器值沿着特定方向被递增地调整，直到相位噪声方差增加，在该点，修改的环路滤波器值在相反方向上递增地调整以收敛于最佳环路带宽值。

10. 发明申请

WO2010078213A2 PHASE ERROR DETECTION WITH CONDITIONAL PROBABILITIES 审中-公开
标题翻译：相位错误检测与条件可行性
公开(公告)号：WO2010078213A2
公开(公告)日：2010-07-08
申请号：PCT/US2009/069508
申请日：2009-12-23
申请人： INTEL CORPORATION , HEWAVITHANA, Thushara , ARAMBEPOLA, Bernard , SHUKLA, Parveen , GAMAGE, Sahan , BHUNJUN, Vinesh
发明人： HEWAVITHANA, Thushara , ARAMBEPOLA, Bernard , SHUKLA, Parveen , GAMAGE, Sahan , BHUNJUN, Vinesh
IPC分类号： H04B7/005 , H04L27/18
CPC分类号： H04L27/3827 , H04L27/2273 , H04L2027/003 , H04L2027/0036 , H04L2027/0038 , H04L2027/0057 , H04L2027/0067 , H04L2027/0069
摘要： Apparatuses, systems, and methods that employ conditional probabilities to calculate phase errors are disclosed. For a received signal, the embodiments may develop several phase error estimates relative to each point of a constellation, the number and location of points of the constellation depending on the modulation technique of the received signal. In addition to calculating the phase error estimates, the embodiments may also calculate weights, or probabilities, associated with each of the estimates. The embodiments may use the estimates and the weights to calculate a composite phase error estimate. The composite phase error estimate may be used to correct the received signal and eliminate or reduce the impact of the phase error.
摘要翻译：公开了使用条件概率来计算相位误差的装置，系统和方法。对于接收到的信号，实施例可以根据接收信号的调制技术，相对于星座的每个点，星座的点的数量和位置来形成几个相位误差估计。除了计算相位误差估计之外，实施例还可以计算与每个估计相关联的权重或概率。实施例可以使用估计和权重来计算复合相位误差估计。可以使用复合相位误差估计来校正接收到的信号并消除或减少相位误差的影响。

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