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公开(公告)号：EP3893452B1
公开(公告)日：2024-07-31
申请号：EP20315149.3
申请日：2020-04-10
CPC分类号： H04L25/03159 , H04L27/2654 , H04L27/2647
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公开(公告)号：EP4374559A1
公开(公告)日：2024-05-29
申请号：EP22753898.0
申请日：2022-07-20
CPC分类号： H04L25/14 , H03M9/00 , H04L25/03159 , H03M1/1215 , H03M1/1028 , H03M1/0624 , G06F17/142
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公开(公告)号：EP4374558A1
公开(公告)日：2024-05-29
申请号：EP22735745.6
申请日：2022-05-20
发明人： HORN, Idan Michael , LANDIS, Shay
CPC分类号： H04L25/03299 , H04L25/03159 , H04B1/0003
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公开(公告)号：EP4366254A1
公开(公告)日：2024-05-08
申请号：EP23208192.7
申请日：2023-11-07
发明人： HE, Ziming
CPC分类号： H04L25/0236 , H04L25/03159 , H04L25/03292 , H04L27/2657 , H04L27/2676 , H04L27/2679 , H04L27/0014
摘要： A communication device, including a receiver configured to receive a signal from a transmitter, the signal including a plurality of data symbols; and at least one processor configured to: obtain a channel estimate and an estimated carrier frequency offset based on a result of an interference detection indicating whether interference is detected in the plurality of data symbols, obtain a data symbol of the plurality of data symbols, obtain a compensated data symbol corresponding to the data symbol based on the estimated carrier frequency offset, obtain an equalized compensated data symbol by performing channel equalization on the compensated data symbol based on the channel estimate, and demodulate and decode the equalized compensated data symbol to obtain decoded data.
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公开(公告)号：EP3396912A1
公开(公告)日：2018-10-31
申请号：EP18161831.5
申请日：2018-03-14
申请人： Intel Corporation
CPC分类号： H04L25/03821 , H04L25/02 , H04L25/0216 , H04L25/0222 , H04L25/03159 , H04L25/03292 , H04L27/2607 , H04L27/2647 , H04L27/2691
摘要： An inter-carrier interference (ICI) mitigation circuit associated with an orthogonal frequency division multiplexing (OFDM) receiver is disclosed. The ICI mitigation circuit comprises an ICI cancellation circuit configured to receive an OFDM symbol associated with an OFDM signal and determine an ICI associated with one or more OFDM subcarriers within the OFDM symbol. The ICI cancellation circuit is further configured to cancel the ICI from the one or more OFDM subcarriers associated with the OFDM symbol, in order to generate a desired OFDM symbol. In some embodiments, the ICI is determined and cancelled at the ICI cancellation circuit, in accordance with a predetermined ICI mitigation algorithm.
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公开(公告)号：EP2497240B1
公开(公告)日：2018-07-25
申请号：EP10774198.5
申请日：2010-10-29
发明人： WILHELMSSON, Leif , SVENSSON, Jim
CPC分类号： H04L27/2647 , H04L25/0206 , H04L25/022 , H04L25/03159
摘要： A receiver is operated so as to receive data conveyed on an Orthogonal Frequency Division Multiplexed (OFDM) signal transmitted on a plurality of sub-carriers. Such operation includes ascertaining which of the plurality of sub-carriers have a channel quality that satisfies one or more criteria. Then, sub-carriers are selected based at least in part on whether they have the channel quality that satisfies one or more criteria. The receiver then fully processes data streams only from the selected sub-carriers, wherein fully processing data streams comprises sub-carrier channel estimation or sub-carrier equalization or both sub-carrier channel estimation and sub-carrier equalization.
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公开(公告)号：EP3337070A1
公开(公告)日：2018-06-20
申请号：EP16204895.3
申请日：2016-12-16
申请人： NXP B.V.
发明人： Serbetli, Semih , Engin, Nur , Filippi, Alessio
IPC分类号： H04L1/00 , H04L25/06 , H04L27/227 , H04L27/233 , H04L25/02
CPC分类号： H04L25/03019 , H03M13/2957 , H04L1/0047 , H04L1/005 , H04L1/0054 , H04L25/0202 , H04L25/0224 , H04L25/03159 , H04L25/03171 , H04L25/067 , H04L27/2277 , H04L27/233
摘要： Receivers and methods of operation are described. A receiver for a modulated signal of a communication system, comprises a demodulator to demodulate the received modulated symbols of a received signal into received soft-bits. A hard-decision decoder is arranged and configured to decode the received soft-bits into decoded bits. A feedback loop is arranged to provide feedback from the hard decision decoder to the demodulator. the feedback loop is configured to re-encode the decoded bits from the hard-decision decoder into re-encoded bits. The demodulator is further arranged and configured to iteratively demodulate the received modulated signal using an output of the feedback loop.
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公开(公告)号：EP2453587B1
公开(公告)日：2018-06-13
申请号：EP10813348.9
申请日：2010-09-01
发明人： ZHANG, Gong , YANG, Xun , XIAO, Pei , LIN, Zihuai
CPC分类号： H04L25/03159 , H04B7/0434 , H04B7/0465 , H04B7/0617 , H04J11/0063 , H04L1/0026 , H04L1/0028 , H04L1/0036 , H04L1/0073 , H04L1/0606 , H04L25/0204 , H04L25/03343 , H04L25/03968 , H04L27/02 , H04L27/2082 , H04L27/34 , H04L2001/125
摘要： A precoding method, a precoding apparatus, a Frequency Domain Equalization (FDE) method, and an FDE apparatus are provided in the embodiments of the present invention. The precoding method includes: performing offset modulation for a transmitting signal vector; calculating a precoding matrix according to the offset-modulated transmitting signal vector and a receiver decision signal vector, where the precoding matrix is used for performing precoding for the transmitting signal vector; and performing precoding for the transmitting signal vector according to the precoding matrix. Linear precoding is performed by using the offset-modulated signal on the transmitter, and therefore, the interference caused by multiple antennas and multipath propagation is reduced, the system BER is reduced, and the complexity of implementation is low.
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9.发明公开DETECTION METHOD AND DEVICE FOR DIGITAL INTERMEDIATE FREQUENCY PROCESSING SYSTEM, AND COMPUTER STORAGE MEDIUM 审中-公开数字中频处理系统的检测方法和装置以及计算机存储介质
公开(公告)号：EP3322143A1
公开(公告)日：2018-05-16
申请号：EP16820795.9
申请日：2016-07-01
发明人： REN, Xiuhong , FAN, Boyuan
IPC分类号： H04L25/03
CPC分类号： H04B1/0475 , G01R23/14 , H04B17/391 , H04L25/03 , H04L25/03159 , H04L27/2624
摘要： Disclosed are a detection method and device for a digital intermediate frequency processing system. The method comprises: forming (S110) and transmitting (S120) excitation data to a digital intermediate frequency processing system; collecting (S130) detection data formed by processing the excitation data by the digital intermediate frequency processing system; and performing a bit-by-bit comparison (S140) on the detection data and reference data to form a detection result. Further provided is a computer storage medium.
摘要翻译： 公开了一种数字中频处理系统的检测方法和装置。 该方法包括：形成（S110）并将激励数据发送（S120）到数字中频处理系统; 收集（S130）由所述数字中频处理系统处理所述激励数据而形成的检测数据; 并且对检测数据和参考数据执行逐位比较（S140）以形成检测结果。 还提供了一种计算机存储介质。
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10.发明授权Apparatus and method with reduced complexity for per tone equalization in a multicarrier system 有权在多载波系统中降低每音调均衡的复杂度的设备和方法
公开(公告)号：EP1545083B1
公开(公告)日：2018-04-04
申请号：EP03079137.0
申请日：2003-12-19
发明人： Pisoni, Fabio
CPC分类号： H04L27/2647 , H04L25/03159 , H04L2025/03414
摘要： An equalizer for a multi carrier signal for carrying out equalization adapted to each carrier or group of carriers, Fourier transforms the multi carrier signal, and obtains difference terms of the multi carrier signal. Both are input to an adaptive filter, to output equalized signals, wherein decimation is applied to at least some of the difference terms input to the filter. This is notable for enabling the complexity to be reduced for a given performance level. In particular since only non-zero filter taps need to be stored and updated, coefficient memory and coefficient calculation capacity can be reduced. Another way to reduce complexity involves measuring noise for at least some of the carriers, and dynamically adapting the size of the filter on a per carrier basis according to global optimizion euristic algorithms which adapt this filter size based on the comparison between this noise and an optimal performance figure achieved in a previous ISI-ICI free measurement phase.
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