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公开(公告)号：US09929790B2
公开(公告)日：2018-03-27
申请号：US15590421
申请日：2017-05-09
Applicant: NXP B.V.
Inventor： Wim van Houtum , Yan Wu
CPC classification number: H04B7/086 , G01S3/06 , G01S3/26 , G01S3/36 , G01S3/46 , G01S3/48 , H04B7/12
Abstract: A receiver system comprising: an input terminal configured to receive input signalling comprising a plurality of antenna-signals, wherein the plurality of antenna-signals each comprise information that corresponds to a first-frequency-bin and a second-frequency-bin. AoA-blocks can determine a first-angle-of-arrival and a second-angle-of-arrival associated with the first- and second-frequency-bins. A first-weighting-determination-block configured to, based on the first-angle-of-arrival and the second-angle-of-arrival, either: set first-weighting-values as values for constructively combining the information that corresponds to the first-frequency-bins of the plurality of antenna-signals; or set first-weighting-values as values for destructively combining the information that corresponds to the first-frequency-bins of the plurality of antenna-signals.
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公开(公告)号：US20180034670A1
公开(公告)日：2018-02-01
申请号：US15641881
申请日：2017-07-05
Applicant: NXP B.V.
Inventor： Wim van Houtum
CPC classification number: H04L25/0204 , H04B17/309 , H04L1/0054 , H04L5/0057 , H04L25/022 , H04L25/0228 , H04L25/0232 , H04L25/0258 , H04L27/2607 , H04L27/2647 , H04L27/2649
Abstract: A receiver circuit comprising an averaging-processing-block that is configured to receive an OFDM signal. The OFDM signal comprises a plurality of sample-values, wherein the sample-values comprise: a middle-sample-value; a lower-sample-value-group; and a higher-sample-value-group. The averaging-processing-block can determine an averaged-sample-value for the middle-sample-value by performing an averaging operation on the sample-values of the lower-sample-value-group and the higher-sample-value-group, but not on the middle-sample-value.
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13.发明申请公开(公告)号：US20160142119A1
公开(公告)日：2016-05-19
申请号：US14546576
申请日：2014-11-18
Applicant: NXP B.V.
Inventor： Wim van Houtum
CPC classification number: H04B7/0617 , H04B1/1036
Abstract: Various exemplary embodiments relate to a method for improving reception of transmissions with first adjacent interference signals, the method including selecting one or more time samples from each of two or more antennas; generating a lower first adjacent interference (LFAI) signal, a desired signal, and an upper first adjacent interference (UFAI) signal for each of the time samples; calculating a lower weighting co-efficient based on the LFAI signal; calculating a middle weighting co-efficient based on the desired signal; calculating a upper weighting co-efficient based on the UFAI signal; combining the lower weighting co-efficient with a filtered LFAI signal into a weighted lower signal; combining the middle weighting co-efficient with a filtered desired signal into a weighted middle signal; combining the upper weighting co-efficient with a filtered UFAI signal into a weighted upper signal; and combining the weighted lower signal, the weighted middle signal, and the weighted upper signal.
Abstract translation: 各种示例性实施例涉及一种用于利用第一相邻干扰信号改善传输的接收的方法，所述方法包括从两个或更多个天线中的每一个选择一个或多个时间采样; 为每个时间样本产生较低的第一相邻干扰（LFAI）信号，期望信号和较高的第一相邻干扰（UFAI）信号; 基于LFAI信号计算较低的加权系数; 基于所需信号计算中间加权系数; 基于UFAI信号计算上加权系数; 将较低加权系数与经滤波的LFAI信号组合成加权较低信号; 将中间加权系数与滤波的期望信号组合成加权中间信号; 将上加权系数与滤波的UFAI信号组合成加权的上信号; 并加权加权信号，加权中间信号和加权上位信号。
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Patent Agency Ranking
公开(公告)号：US10581476B2
公开(公告)日：2020-03-03
申请号：US15982029
申请日：2018-05-17
Applicant: NXP B.V.
Inventor： Wim van Houtum
Abstract: A communications device includes aspects for improving reception of transmissions with first-adjacent co-channel interference signals corresponding to digitally-modulated side-bands of in-band on-channel (IBOC) broadcasted signals. The communications device may include a radio frequency (RF) signal-reception circuit including two RF-signal paths driven in response to signals received via at least two respective antennas, and configured to respond to signals carried in the respective RF-signal paths by providing pre-processed RF output signals. The communications device may further include a beam-forming circuit driven in response to signals received at the at least two respective antennas and configured and arranged to facilitate first-adjacent interference cancellation (FAC). The communications device can also include an interference-cancelling circuit configured and arranged to reduce the first-adjacent co-channel interference signals by combining a beam-forming output signal provided by the beam-forming circuit with the pre-processed RF output signals as part of a maximum ratio combining (MRC) process.
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公开(公告)号：US10523480B1
公开(公告)日：2019-12-31
申请号：US16184370
申请日：2018-11-08
Applicant: NXP B.V.
Inventor： Yunus Can Gultekin , Frans M. J. Willems , Wim van Houtum , Semih Serbetli
Abstract: A method for k-bit Enumerative Sphere Shaping (ESS) of multidimensional constellations includes converting a first set of a plurality of uniformly distributed data bits from a serial data bit stream to a first unsigned amplitude sequence comprising a plurality of amplitudes bounded by a spherical constellation of maximum energy levels of a plurality of energy levels, wherein the first unsigned amplitude sequence has a Gaussian distribution and each of the energy levels is determined by a respective one of the amplitudes in the amplitude sequence. The first unsigned amplitude sequence is converted to a first shaped data bit sequence. The first shaped data bit sequence is combined with a second set of a one or more uniformly distributed data bits from the serial data bit stream to form a combined data stream. The combined data stream is mapped to a combined amplitude stream.
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公开(公告)号：US10014893B2
公开(公告)日：2018-07-03
申请号：US15649986
申请日：2017-07-14
Applicant: NXP B.V.
Inventor： Wim van Houtum
CPC classification number: H04B1/1027 , H04B7/0413 , H04B7/08 , H04B7/086 , H04B17/20 , H04L27/14
Abstract: A receiver circuit comprising a beamformer and an MRC-block. The beamformer configured to: apply combination-weighting-values to a first-BF-input-signal and a second-BF-input-signal in order to provide a BF-combination-signal; and apply suppression-weighting-values to the first-BF-input-signal and the second-BF-input-signal in order to provide a BF-suppression-signal. The MRC-block comprising: a first-demodulator configured to demodulate the BF-combination-signal in order to provide a demodulated-combination-signal that comprises bit metrics; a second-demodulator configured to demodulate the BF-suppression-signal in order to provide a demodulated-suppression-signal that comprises bit metrics; and a combiner configured to combine the demodulated-combination-signal with the demodulated-suppression-signal in order to provide an MRC-output-signal.
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公开(公告)号：US20180083660A1
公开(公告)日：2018-03-22
申请号：US15649986
申请日：2017-07-14
Applicant: NXP B.V.
Inventor： Wim van Houtum
CPC classification number: H04B1/1027 , H04B7/0413 , H04B7/08 , H04B7/086 , H04B17/20 , H04L27/14
Abstract: A receiver circuit comprising a beamformer and an MRC-block. The beamformer configured to: apply combination-weighting-values to a first-BF-input-signal and a second-BF-input-signal in order to provide a BF-combination-signal; and apply suppression-weighting-values to the first-BF-input-signal and the second-BF-input-signal in order to provide a BF-suppression-signal. The MRC-block comprising: a first-demodulator configured to demodulate the BF-combination-signal in order to provide a demodulated-combination-signal that comprises bit metrics; a second-demodulator configured to demodulate the BF-suppression-signal in order to provide a demodulated-suppression-signal that comprises bit metrics; and a combiner configured to combine the demodulated-combination-signal with the demodulated-suppression-signal in order to provide an MRC-output-signal.
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公开(公告)号：US20150222382A1
公开(公告)日：2015-08-06
申请号：US14527396
申请日：2014-10-29
Applicant: NXP B.V.
Inventor： Wim van Houtum
CPC classification number: H04J11/0066 , H04H20/30 , H04H2201/183 , H04L27/2647 , H04L27/265
Abstract: The invention provides a reception method and apparatus which provides a series of frequency shifts and filtering operations to sideband signals (lower, upper, and middle), to enable detection if the central part of a signal is analogue or digital, and to enable effective co-channel interference compensation. The invention enables (H)IBOC signals for example to be processed with a narrower bandwidth and therefore a lower processing clock speed and complexity is made possible compared to the conventional (H)IBOC-signal processing approach.
Abstract translation: 本发明提供一种接收方法和装置，其向边带信号（下，上，中）提供一系列频移和滤波操作，以便在信号的中心部分是模拟或数字的情况下能够进行检测， 通道干扰补偿。 本发明使得（H）IBOC信号例如能够以较窄的带宽进行处理，因此与传统的（H）IBOC信号处理方法相比，可以实现较低的处理时钟速度和复杂性。
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