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    • 11. 发明申请
    • ULTRA WIDEBAND TRANSCEIVER ARCHITECTURE AND METHOD
    • 超宽带收发器架构和方法
    • WO2009057123A3
    • 2009-08-20
    • PCT/IL2008001692
    • 2008-12-30
    • A M P S ADVANCED MICROPOWER SEPRIMO HAIMHOLZER REUVENIVRY YGAL
    • PRIMO HAIMHOLZER REUVENIVRY YGAL
    • H04L27/00
    • H04L27/2647H04L27/2684
    • In the technology known today, UWB transceiver power consumption is not efficient and too high. We have solved this problem. In our patent we have presented our innovationist UWB transceiver circuit, which could be used for preamble based OFDM or pilot based OFDM reception. In IEEE P802.15-03/268r3 it is reported that UWB OFDM receiver power consumption at 480Mbits/sec, when implemented using traditional digital method, is 323mwatts for 130nm, and 236mwatts for 90nm. We have found that implementation of the same receiver using our new innovationist OFDM receiver, working at 480Mhz, consumes about 40mwatts. It is clear, in terms of power consumptions, that our OFDM receiver implementation is 8 times lower than the lowest power consumption known today by OFDM receiver circuit.
    • 在今天已知的技术中,UWB收发器的功耗不高,太高。 我们已经解决了这个问题。 在我们的专利中,我们提出了我们创新的UWB收发器电路,可以用于基于前导码的OFDM或基于导频的OFDM接收。 据IEEE P802.15-03 / 268r3报道,UWB OFDM接收机的功耗为480Mbits / sec,采用传统数字方式实现,130nm为323mw,90nm为236mwat。 我们已经发现,使用我们新的创新者OFDM接收机(以480Mhz工作)的相同接收机的实现消耗了大约40mwatts。 在功率消耗方面,很明显,我们的OFDM接收机实现是OFDM接收机电路已知的最低功耗的8倍。
    • 12. 发明申请
    • ULTRA WIDEBAND TRANSCEIVER ARCHITECTURE AND METHOD
    • 超宽带收发器体系结构和方法
    • WO2009057123A2
    • 2009-05-07
    • PCT/IL2008/001692
    • 2008-12-30
    • A.M.P.S. ADVANCED MICROPOWER SEMICONDUCTORS L.T.D.PRIMO, HaimHOLZER, ReuvenIVRY, Ygal
    • PRIMO, HaimHOLZER, ReuvenIVRY, Ygal
    • H04J14/02
    • H04L27/2647H04L27/2684
    • In the technology known today, UWB transceiver power consumption is not efficient and too high. We have solved this problem. In our patent we have presented our innovationist UWB transceiver circuit, which could be used for preamble based OFDM or pilot based OFDM reception. In IEEE P802.15-03/268r3 it is reported that UWB OFDM receiver power consumption at 480Mbits/sec, when implemented using traditional digital method, is 323mwatts for 130nm, and 236mwatts for 90nm. We have found that implementation of the same receiver using our new innovationist OFDM receiver, working at 480Mhz, consumes about 40mwatts. It is clear, in terms of power consumptions, that our OFDM receiver implementation is 8 times lower than the lowest power consumption known today by OFDM receiver circuit.
    • 在当今已知的技术中,UWB收发器功耗不高并且太高。 我们已经解决了这个问题。 在我们的专利中,我们展示了我们的创新型UWB收发器电路,该电路可用于基于前导码的OFDM或基于导频的OFDM接收。 在IEEE P802.15-03 / 268r3中,据报道,使用传统数字方法实现的480Mbits / sec的UWB OFDM接收器功耗在130nm下为323mW,在90nm下为236mW。 我们发现,使用我们新的创新型OFDM接收器,在480Mhz下工作,实现相同的接收器,功耗约为40mW。 就功耗而言,很显然,我们的OFDM接收器实现比OFDM接收器电路目前已知的最低功耗低8倍。
    • 14. 发明申请
    • OFDM RECEIVER
    • OFDM接收机
    • WO2004010624A1
    • 2004-01-29
    • PCT/KR2003/001430
    • 2003-07-18
    • OPEN SOLUTION CO., LTD.JUNG, Min-Soo
    • JUNG, Min-Soo
    • H04J11/00
    • H04L27/2657H04L27/266H04L27/2662H04L27/2663H04L27/2684H04L2027/0036H04L2027/0057
    • A receiver for receiving modulated signals based on OFDM (Orthogonal Frequency Division Multiplexing) from a transmitter. The receiver for recovering the OFDM signals directly converts an intermediate band signal into a digital signal, and converts the digital signal into baseband signals after correcting a frequency error by means of a NCO (Numerically Controlled Oscillator) and a multiplier. The receiver corrects a clock error through Farrow filters after canceling out high frequency components by means of LPFs (Low Pass Filters). As a correlation between a timing recovery circuit and a frequency recovery circuit can be significantly reduced, an operation of the receiver can be stabilized.
    • 一种用于从发射机接收基于OFDM(正交频分复用)的调制信号的接收机。 用于恢复OFDM信号的接收机直接将中间频带信号转换为数字信号,并且通过NCO(数控振荡器)和乘法器校正频率误差后,将数字信号转换为基带信号。 接收器通过LPF(低通滤波器)取消高频分量后,通过Farrow滤波器校正时钟误差。 由于定时恢复电路和频率恢复电路之间的相关性可以显着降低,所以可以使接收机的操作稳定。
    • 16. 发明申请
    • IMPROVEMENT OF KARHUNEN-LOEVE ALGORITHM FOR ESTIMATING FREQUENCY OFFSET BY USE OF A BETTER CORRELATION MODEL
    • 通过使用更好的相关模型改进估计频率偏差的克朗恩算法
    • WO2016095947A1
    • 2016-06-23
    • PCT/EP2014/077781
    • 2014-12-15
    • HUAWEI TECHNOLOGIES CO., LTD.RUSEK, Fredrik
    • RUSEK, Fredrik
    • H04L27/26
    • H04L27/2657H04L27/266H04L27/2675H04L27/2684
    • Receiver (120) and method (500) in a receiver (120), for estimating a normalised frequency offset between a transmitter (110) and the receiver (120) in a wireless communication system (100), based on Orthogonal Frequency Division Multiplexing (OFDM). The method (400) comprises receiving (401) a first pilot signal (y r1 ) and a second pilot signal (y r2 ), from the transmitter (110); determining (402) a correlation model to be applied based on correlation among involved sub-carrier channels at the first pilot signal (y r1 ) and the second pilot signal (y r2 ); computing (403) three complex values μ -1 , μ 0 , and μ 1 , by a complex extension of a log-likelihood function λ(ε), based on the determined (402) correlation model; and estimating (404) the frequency offset value (ε) by finding a maximum value of a Karhunen-Loeve approximation of the log-likelihood function λ(ε), based on the computed (403) three complex values μ -1 , μ 0 , and μ 1 .
    • 在接收器(120)中的接收器(120)和方法(500),用于在无线通信系统(100)中基于正交频分复用(...)来估计发射机(110)和接收机(120)之间的标准化频率偏移 OFDM)。 所述方法(400)包括:从所述发射机(110)接收(401)第一导频信号(yr1)和第二导频信号(yr2); 基于所述第一导频信号(yr1)和所述第二导频信号(yr2)之间的所涉及的子载波信道之间的相关性来确定(402)要应用的相关模型; 基于确定的(402)相关模型,通过对数似然函数λ(ε)的复数扩展来计算(403)三个复数值μ-1,μ0和μ1; 以及基于计算出的(403)三个复数值μ-1,μ0,...求出对数似然函数λ(ε)的Karhunen-Loeve近似的最大值来估计(404)频率偏移值(ε) 和μ1。
    • 19. 发明申请
    • METHOD FOR PHASE AND OSCILLATOR FREQUENCY ESTIMATION
    • 相位和振荡器频率估计方法
    • WO2012119402A1
    • 2012-09-13
    • PCT/CN2011/078640
    • 2011-08-19
    • HUAWEI TECHNOLOGIES CO., LTD.HAUSKE, Fabian NikolausQI, Juan
    • HAUSKE, Fabian NikolausQI, Juan
    • H04L27/22
    • H04W56/0035H04L27/227H04L27/2657H04L27/2684H04L2027/0016H04L2027/0028H04L2027/0083
    • Method for phase and oscillator frequency estimation and receiver with phase and oscillator frequency estimators The invention relates to a method (100) for estimating a phase of a phase modulated signal having an inphase component and a quadrature component, the method comprising: determining (101) the inphase component of the phase modulated signal; determining (103) a quadrature component of the phase modulated signal; determining (105) a difference of absolute values of the inphase component and the quadrature component to obtain a difference component; determining (107) a sign of the inphase component to obtain an inphase sign; determining (109) a sign of the quadrature component to obtain a quadrature sign; and adjusting (111) a sign of the difference component upon the basis of the inphase sign and the quadrature sign to obtain the phase estimate.
    • 用于相位和振荡器频率估计的方法以及具有相位和振荡器频率估计器的接收机本发明涉及一种用于估计具有同相分量和正交分量的相位调制信号的相位的方法(100),该方法包括:确定(101) 相位调制信号的同相分量; 确定(103)相位调制信号的正交分量; 确定(105)同相分量和正交分量的绝对值的差异以获得差分分量; 确定(107)同相分量的符号以获得同相符号; 确定(109)所述正交分量的符号以获得正交符号; 并根据同相符号和正交符号调整(111)差分量的符号,以获得相位估计。