-
1.发明申请METHOD OF ESTIMATING TRANSMISSION CHANNEL RESPONSE AND DIFFERENCE OF SYNCHRONIZATION OFFSETS INTRODUCED IN A RECEIVED STREAM OF PACKETS OF OFDM DATA AND RELATIVE RECEIVER 有权估计传输信道响应的方法和在OFDM数据和相对接收机的分组的接收流中引入的同步偏移的差异公开(公告)号：US20110135022A1
公开(公告)日：2011-06-09
申请号：US12953874
申请日：2010-11-24
Applicant: Gabriele DELL' AMICO , Eleonora Guerrini
Inventor： Gabriele DELL' AMICO , Eleonora Guerrini
CPC classification number: H04L25/022 , H04L25/0224 , H04L27/2647 , H04L27/2655 , H04L27/2679
Abstract: An OFDM receiver includes a sampling circuit configured to sample an incoming signal received through a transmission channel and an estimation circuit configured to receive samples of the incoming signal and to estimate transmission channel response and eventual differences of synchronization offsets introduced at a receiver side. An equalizer may be coupled to the estimation circuit and configured to compensate an effect of the transmission channel response and of the differences of synchronization offsets on the received samples and to generate equalized samples. An OFDM detector may be configured to generate a stream of demodulated digital symbols based upon the equalized samples.
Abstract translation: OFDM接收机包括：采样电路，被配置为对通过传输信道接收的输入信号进行采样;以及估计电路，被配置为接收所述输入信号的采样并且估计在接收机侧引入的同步偏移的传输信道响应和最终差异。 均衡器可以耦合到估计电路并且被配置为补偿传输信道响应和同步偏移的差异对接收到的采样的影响并且产生均衡的样本。 OFDM检测器可以被配置为基于均衡的样本来产生解调的数字符号流。
-
公开(公告)号：US20120134427A1
公开(公告)日：2012-05-31
申请号：US13243574
申请日：2011-09-23
Applicant: Eleonora Guerrini
Inventor： Eleonora Guerrini
CPC classification number: H04L27/2647 , H04L1/0066 , H04L5/0046 , H04L27/0008 , H04L27/0012 , H04L27/38
Abstract: A method of transmitting symbols of a digital transmission constellation from a set thereof, ordered from a smallest to a greatest number of bits per symbol, may include identifying a first constellation from the set that is configured to communicate with a threshold error rate and has a greatest signal-to-noise ratio smaller than a signal-to-noise ratio of a received signal. The method may also include identifying a second constellation from the set that corresponds to a constellation with a number of bits per symbol immediately greater than the first constellation. The method may further include determining first and second probabilities of use of the first and second constellations that would generate an expected number of erroneous bits corresponding to the threshold error rate. The method may further include transmitting a symbol with a constellation selected randomly between the first and second constellations according to the first and second probabilities, respectively.
Abstract translation: 从每个符号的最小位数到最大位数排列的从其集合发送数字传输星座的符号的方法可以包括从被配置为以阈值错误率通信的集合识别第一星座，并且具有 最大的信噪比小于接收信号的信噪比。 该方法还可以包括从对应于具有立即大于第一星座的每个符号的比特数的星座的集合识别第二星座图。 该方法可以进一步包括确定第一和第二星座的使用的第一和第二概率，其将产生对应于阈值错误率的预期数量的错误比特。 该方法还可以包括分别根据第一和第二概率发送具有在第一和第二星座之间随机选择的星座的符号。
-
3.发明授权Method of estimating transmission channel response and difference of synchronization offsets introduced in a received stream of packets of OFDM data and relative receiver 有权在OFDM数据和相关接收机的分组的接收流中估计传输信道响应和同步偏移的差异的方法公开(公告)号：US08416889B2
公开(公告)日：2013-04-09
申请号：US12953874
申请日：2010-11-24
Applicant: Gabriele Dell'Amico , Eleonora Guerrini
Inventor： Gabriele Dell'Amico , Eleonora Guerrini
IPC: H04L27/06
CPC classification number: H04L25/022 , H04L25/0224 , H04L27/2647 , H04L27/2655 , H04L27/2679
Abstract: An OFDM receiver includes a sampling circuit configured to sample an incoming signal received through a transmission channel and an estimation circuit configured to receive samples of the incoming signal and to estimate transmission channel response and eventual differences of synchronization offsets introduced at a receiver side. An equalizer may be coupled to the estimation circuit and configured to compensate an effect of the transmission channel response and of the differences of synchronization offsets on the received samples and to generate equalized samples. An OFDM detector may be configured to generate a stream of demodulated digital symbols based upon the equalized samples.
Abstract translation: OFDM接收机包括：采样电路，被配置为对通过传输信道接收的输入信号进行采样;以及估计电路，被配置为接收所述输入信号的采样并且估计在接收机侧引入的同步偏移的传输信道响应和最终差异。 均衡器可以耦合到估计电路并且被配置为补偿传输信道响应和同步偏移的差异对接收到的采样的影响并且产生均衡的样本。 OFDM检测器可以被配置为基于均衡的样本来产生解调的数字符号流。
-
Patent Agency Ranking
4.发明授权Method for estimating the signal-to-noise ratio for packet transmission and reception systems of signals based on M-DPSK modulations and apparatus thereof 有权用于基于M-DPSK调制来估计信号的分组发送和接收系统的信噪比的方法及其装置公开(公告)号：US08363760B2
公开(公告)日：2013-01-29
申请号：US12646348
申请日：2009-12-23
Applicant: Paola Bisaglia , Simone Bois , Eleonora Guerrini
Inventor： Paola Bisaglia , Simone Bois , Eleonora Guerrini
IPC: H03D1/06
CPC classification number: H04L27/2331 , H04B17/309 , H04L1/206
Abstract: A method of estimating a signal-to-noise ratio from a received M-DPSK modulated signal, comprising a sequence of N known symbols, based on a division of the known symbols N and of N samples of the received signal at the output of the channel into a number of blocks B of length L with B greater than one.
Abstract translation: 一种从接收到的M-DPSK调制信号中估计信噪比的方法，该信号包括N个已知符号的序列，基于已知符号N的除法和在输出端的接收信号的N个样本 通道进入长度为L且B大于1的多个块B。
-
公开(公告)号：US08693576B2
公开(公告)日：2014-04-08
申请号：US13243574
申请日：2011-09-23
Applicant: Eleonora Guerrini
Inventor： Eleonora Guerrini
IPC: H04L27/36
CPC classification number: H04L27/2647 , H04L1/0066 , H04L5/0046 , H04L27/0008 , H04L27/0012 , H04L27/38
Abstract: A method of transmitting symbols of a digital transmission constellation from a set thereof, ordered from a smallest to a greatest number of bits per symbol, may include identifying a first constellation from the set that is configured to communicate with a threshold error rate and has a greatest signal-to-noise ratio smaller than a signal-to-noise ratio of a received signal. The method may also include identifying a second constellation from the set that corresponds to a constellation with a number of bits per symbol immediately greater than the first constellation. The method may further include determining first and second probabilities of use of the first and second constellations that would generate an expected number of erroneous bits corresponding to the threshold error rate. The method may further include transmitting a symbol with a constellation selected randomly between the first and second constellations according to the first and second probabilities, respectively.
Abstract translation: 从每个符号的最小位数到最大位数排列的从其集合发送数字传输星座的符号的方法可以包括从被配置为以阈值错误率通信的集合识别第一星座，并且具有 最大的信噪比小于接收信号的信噪比。 该方法还可以包括从对应于具有立即大于第一星座的每个符号的比特数的星座的集合识别第二星座图。 该方法可以进一步包括确定第一和第二星座的使用的第一和第二概率，其将产生对应于阈值错误率的预期数量的错误比特。 该方法还可以包括分别根据第一和第二概率发送具有在第一和第二星座之间随机选择的星座的符号。
-
6.发明申请METHOD FOR ESTIMATING THE SIGNAL-TO-NOISE RATIO FOR PACKET TRANSMISSION AND RECEPTION SYSTEMS OF SIGNALS BASED ON M-DPSK MODULATIONS AND APPARATUS THEREOF 有权用于基于M-DPSK调制的信号传输和信号接收系统估计信号噪声比的方法及装置公开(公告)号：US20100166101A1
公开(公告)日：2010-07-01
申请号：US12646348
申请日：2009-12-23
Applicant: Paola Bisaglia , Simone Bois , Eleonora Guerrini
Inventor： Paola Bisaglia , Simone Bois , Eleonora Guerrini
CPC classification number: H04L27/2331 , H04B17/309 , H04L1/206
Abstract: A method of estimating a signal-to-noise ratio from a received M-DPSK modulated signal, comprising a sequence of N known symbols, based on a division of the known symbols N and of N samples of the received signal at the output of the channel into a number of blocks B of length L with B greater than one.
Abstract translation: 一种从接收到的M-DPSK调制信号中估计信噪比的方法，该信号包括N个已知符号的序列，基于已知符号N的除法和在输出端的接收信号的N个样本 通道进入长度为L且B大于1的多个块B。
-
7.发明申请公开(公告)号：US20090135934A1
公开(公告)日：2009-05-28
申请号：US12323291
申请日：2008-11-25
Applicant: Lorenzo Guerrieri , Eleonora Guerrini , Daniele Veronesi , Paola Bisaglia
Inventor： Lorenzo Guerrieri , Eleonora Guerrini , Daniele Veronesi , Paola Bisaglia
CPC classification number: H04L5/0046 , H04L1/004 , H04L1/006
Abstract: A method for loading bits over a set of subcarriers of a multiple-carrier communications system comprises the operation of associating with the subcarriers respective numbers of bits chosen from among a plurality of available constellations. The method envisages definition of a performance target for the system and execution of bit loading, guaranteeing the aforesaid target on a plurality of subcarriers. The performance target can be a target error rate, such as a bit-error rate (BER), or else be transferred into a constraint, such as, for example, a threshold, in a metric of log-likelihood ratios (LLRs). In this case, there is preferably envisaged application to the signals received within the multiple-carrier system a function that estimates a signal to noise ratio on each sub-carrier. The aforesaid metric of log-likelihood ratios (LLRs) is hence defined as a function of said signal to noise ratios.
Abstract translation: 一种用于在多载波通信系统的一组子载波上加载比特的方法包括与从多个可用星座中选择的相应数目的比特相关联的操作。 该方法设想定义系统的性能目标和执行比特加载，保证上述目标在多个子载波上。 性能目标可以是诸如比特误码率（BER）的目标错误率，或者以对数似然比（LLR）的度量被传送到约束，例如阈值。 在这种情况下，对于在多载波系统内接收到的信号，优选设想应用估计每个子载波上的信噪比的函数。 因此，上述对数似然比（LLR）的度量被定义为所述信噪比的函数。
-
8.发明授权Method for the transmission on multiple-carrier communications systems, and corresponding transmitter and computer-program product 有权在多载波通信系统上传输的方法，以及相应的发射机和计算机程序产品公开(公告)号：US08290070B2
公开(公告)日：2012-10-16
申请号：US12323291
申请日：2008-11-25
Applicant: Lorenzo Guerrieri , Eleonora Guerrini , Daniele Veronesi , Paola Bisaglia
Inventor： Lorenzo Guerrieri , Eleonora Guerrini , Daniele Veronesi , Paola Bisaglia
IPC: H04K1/10
CPC classification number: H04L5/0046 , H04L1/004 , H04L1/006
Abstract: A method for loading bits over a set of subcarriers of a multiple-carrier communications system comprises the operation of associating with the subcarriers respective numbers of bits chosen from among a plurality of available constellations. The method envisages definition of a performance target for the system and execution of bit loading, guaranteeing the aforesaid target on a plurality of subcarriers. The performance target can be a target error rate, such as a bit-error rate (BER), or else be transferred into a constraint, such as, for example, a threshold, in a metric of log-likelihood ratios (LLRs). In this case, there is preferably envisaged application to the signals received within the multiple-carrier system a function that estimates a signal to noise ratio on each sub-carrier. The aforesaid metric of log-likelihood ratios (LLRs) is hence defined as a function of said signal to noise ratios.
Abstract translation: 一种用于在多载波通信系统的一组子载波上加载比特的方法包括与从多个可用星座中选择的相应数目的比特相关联的操作。 该方法设想定义系统的性能目标和执行比特加载，保证上述目标在多个子载波上。 性能目标可以是诸如比特误码率（BER）的目标错误率，或者以对数似然比（LLR）的度量被传送到约束，例如阈值。 在这种情况下，对于在多载波系统内接收到的信号，优选设想应用估计每个子载波上的信噪比的函数。 因此，上述对数似然比（LLR）的度量被定义为所述信噪比的函数。
-
-
-
-
-
-
-
Search Results
8
records
(took 0.016 seconds)
