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公开(公告)号：CN105635029A
公开(公告)日：2016-06-01
申请号：CN201511003561.8
申请日：2015-12-28
Applicant: 宜宾学院
Inventor： 邓凯
CPC classification number: H04L27/3854 , H04L27/265 , H04L2025/03624 , H04L2201/04
Abstract: 本发明公开了一种针对存在多个频偏的分布式天线OFDM系统的信号检测方法,包括以下步骤：S1通过多个频偏的平均值在时域进行初始频偏校正;S2通过快速傅里叶变换对初始频偏校正后的时域采样信号向量进行解调，得到频域信号向量;S3.对解调后的频域向量进行逐子载波迫零;S4对迫零后的频域信号进行频偏补偿。本发明提供了一种针对存在多个频偏的分布式天线OFDM系统的信号检测方法，用于对存在多个频偏的分布式天线OFDM系统的接收信号依次进行初始频偏校正、解调、迫零和频偏补偿，不需要高复杂度的大矩阵求逆运算，计算复杂度低。
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公开(公告)号：US20190207793A1
公开(公告)日：2019-07-04
申请号：US16236012
申请日：2018-12-28
Applicant: Kandou Labs, S.A.
Inventor： Armin Tajalli
IPC: H04L27/20 , H04L27/148 , H04L27/26
CPC classification number: H04L27/2071 , H04L25/0274 , H04L25/0292 , H04L25/4919 , H04L27/148 , H04L27/2605 , H04L2027/0036 , H04L2201/04
Abstract: Methods and systems are described for obtaining a set of carrier-modulated symbols of a carrier-modulated codeword, each carrier-modulated symbol received via a respective wire of a plurality of wires of a multi-wire bus, applying each carrier-modulated symbol of the set of carrier-modulated symbols to a corresponding transistor of a set of transistors, the set of transistors further connected to a pair of output nodes according to a sub-channel vector of a plurality of mutually orthogonal sub-channel vectors, recovering a demodulation signal from the carrier-modulated symbols, and generating a demodulated sub-channel data output as a differential voltage on the pair of output nodes based on a linear combination of the set of carrier-modulated symbols by controlling conductivity of the set of transistors according to the demodulation signal.
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公开(公告)号：US20180316524A1
公开(公告)日：2018-11-01
申请号：US15583644
申请日：2017-05-01
Applicant: INTEL CORPORATION
Inventor： Mor M. COHEN , Yaniv HADAR , Ehud U. SHOOR
CPC classification number: H04L25/03949 , H04L7/00 , H04L7/033 , H04L25/03057 , H04L2201/02 , H04L2201/04
Abstract: An apparatus is provided which comprises: a data slicer to receive first data sampled by a data clock; an edge slicer to receive second data sampled by an edge clock; and a Least Mean Square (LMS) circuitry coupled to the data and edge slicers, wherein the LSM circuitry is to generate a code to adjust a phase of one of data clock and/or edge clock relative to one another.
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公开(公告)号：US11894961B2
公开(公告)日：2024-02-06
申请号：US18045713
申请日：2022-10-11
Applicant: Kandou Labs, S.A.
Inventor： Armin Tajalli
CPC classification number: H04L27/2071 , H04L25/0274 , H04L25/0292 , H04L25/4919 , H04L27/148 , H04L27/2605 , H04L2027/0036 , H04L2201/04
Abstract: Methods and systems are described for obtaining a set of carrier-modulated symbols of a carrier-modulated codeword, each carrier-modulated symbol received via a respective wire of a plurality of wires of a multi-wire bus, applying each carrier-modulated symbol of the set of carrier-modulated symbols to a corresponding transistor of a set of transistors, the set of transistors further connected to a pair of output nodes according to a sub-channel vector of a plurality of mutually orthogonal sub-channel vectors, recovering a demodulation signal from the carrier-modulated symbols, and generating a demodulated sub-channel data output as a differential voltage on the pair of output nodes based on a linear combination of the set of carrier-modulated symbols by controlling conductivity of the set of transistors according to the demodulation signal.
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Patent Agency Ranking
公开(公告)号：US20170170991A1
公开(公告)日：2017-06-15
申请号：US15350212
申请日：2016-11-14
Applicant: Intel IP Corporation
Inventor： Tobias Scholand , Edgar Bolinth , Robert Kokke , Umer Salim , Thomas Esch
IPC: H04L25/03 , H04W56/00 , H04B17/318
CPC classification number: H04L25/03 , H04B7/024 , H04B17/318 , H04L25/03821 , H04L25/067 , H04L2201/02 , H04L2201/04 , H04W56/003
Abstract: A communication terminal is described comprising a radio frequency receiver configured to receive a signal comprising signal components transmitted via different communication channels, each modulated based on a common modulation symbol shared by the plurality of communication channels, an equalizer for each communication channel configured to equalize the signal received based on respective one or more channel parameters, a demodulator for each communication channel configured to calculate probability information information bits to be equal to a particular binary value, a combiner configured to combine the probability information calculated for the plurality of communication channels and a decoder configured to generate reconstructed useful data based on the combined probability information.
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公开(公告)号：WO2019133897A1
公开(公告)日：2019-07-04
申请号：PCT/US2018/067994
申请日：2018-12-28
Applicant: KANDOU LABS, S.A. , KANDOU US, INC.
Inventor： TAJALLI, Armin
CPC classification number: H04L27/2071 , H04L25/0274 , H04L25/0292 , H04L25/4919 , H04L27/148 , H04L27/2605 , H04L2027/0036 , H04L2201/04
Abstract: Methods and systems are described for obtaining a set of carrier-modulated symbols of a carrier-modulated codeword, each carrier-modulated symbol received via a respective wire of a plurality of wires of a multi-wire bus, applying each carrier-modulated symbol of the set of carrier-modulated symbols to a corresponding transistor of a set of transistors, the set of transistors further connected to a pair of output nodes according to a sub-channel vector of a plurality of mutually orthogonal sub-channel vectors, recovering a demodulation signal from the carrier-modulated symbols, and generating a demodulated sub-channel data output as a differential voltage on the pair of output nodes based on a linear combination of the set of carrier-modulated symbols by controlling conductivity of the set of transistors according to the demodulation signal.
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公开(公告)号：WO2018204010A1
公开(公告)日：2018-11-08
申请号：PCT/US2018/026127
申请日：2018-04-04
Applicant: INTEL CORPORATION
Inventor： COHEN, Mor M. , HADAR, Yaniv , SHOOR, Ehud U.
CPC classification number: H04L25/03949 , H04L7/00 , H04L7/0004 , H04L7/0062 , H04L7/0087 , H04L7/033 , H04L25/03057 , H04L25/03146 , H04L2201/02 , H04L2201/04
Abstract: An apparatus is provided which comprises: a data slicer to receive first data sampled by a data clock; an edge slicer to receive second data sampled by an edge clock; and a Least Mean Square (LMS) circuitry coupled to the data and edge slicers, wherein the LSM circuitry is to generate a code to adjust a phase of one of data clock and/or edge clock relative to one another.
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公开(公告)号：KR1020080094323A
公开(公告)日：2008-10-23
申请号：KR1020070038601
申请日：2007-04-20
Applicant: 연세대학교 산학협력단
IPC: H04L1/06
CPC classification number: H04L1/06 , H04L1/203 , H04L2201/02 , H04L2201/04
Abstract: A method for detecting a spatial multiplexing symbol is provided to decrease a calculation amount of a system by defining an arrangement criterion of a channel matrix by decomposing the channel matrix and arranging the channel matrix using the arrangement criterion. A measured channel matrix is expanded according to a variance of a noise to define an expanded channel matrix. An order arrangement criterion is defined by using the expanded channel matrix. The expanded channel matrix is arranged by using the order arrangement criterion, and sequence arrangement information is obtained. Actual power is allocated on a transmitter side by using the expanded channel matrix. The expanded channel matrix is arranged by using the order arrangement information. The expanded matrix is QR-decomposed, such that candidate transmission symbol is detected.
Abstract translation: 提供了一种用于检测空间复用符号的方法，以通过使用该排列标准分解信道矩阵和排列信道矩阵来定义信道矩阵的排列标准来减少系统的计算量。 根据噪声的方差来扩展测量的信道矩阵以定义扩展的信道矩阵。 通过使用扩展的信道矩阵来定义订单排列标准。 通过使用顺序排列准则来布置扩展信道矩阵，并获得序列排列信息。 通过使用扩展的信道矩阵在发射机侧分配实际功率。 扩展信道矩阵通过使用顺序排列信息进行排列。 扩展矩阵被QR分解，使得检测到候选传输符号。
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公开(公告)号：KR1020080097535A
公开(公告)日：2008-11-06
申请号：KR1020070042512
申请日：2007-05-02
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2695 , H04L25/08 , H04L27/01 , H04L27/2636 , H04L2201/04
Abstract: An apparatus and a method for removing intersymbol interference in a mobile communication system remove intersymbol interference element between reception signals by using a frequency domain equalizer. A first equalizer(200) estimates a channel from the received signal and performs equalization for the received signal according to the estimated channel, and outputs a first signal. A signal processor(300) removes intersymbol interference element from the first signal and recovers the first signal as a transmission signal. A second equalizer(400) generates a second signal from the restored transmission signal and extracts the intersymbol interference element of the first signal from the second signal and transmits the extracted signal to the signal processor.
Abstract translation: 移动通信系统中移除码间干扰的装置和方法通过使用频域均衡器去除接收信号之间的符号间干扰元素。 第一均衡器（200）从接收信号估计信道，并根据估计的信道对接收到的信号进行均衡，并输出第一信号。 信号处理器（300）从第一信号中去除符号间干扰元素，并将第一信号作为发送信号进行恢复。 第二均衡器（400）从恢复的发送信号生成第二信号，并从第二信号中提取第一信号的符号间干扰元素，并将提取的信号发送到信号处理器。
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