专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

US20100284500A1 ESTIMATING SIGNAL TO INTERFERENCE RATIO IN A WIRELESS COMMUNICATIONS RECEIVER 有权
标题翻译：在无线通信接收机中估计干扰比的信号
公开(公告)号：US20100284500A1
公开(公告)日：2010-11-11
申请号：US12808161
申请日：2008-12-04
申请人： Carlo Luschi , Abdelkader Medles
发明人： Carlo Luschi , Abdelkader Medles
IPC分类号： H04B1/10
CPC分类号： H04B17/006 , H04B17/336
摘要： A method and corresponding system for generating an estimate of at least one of a signal power, a noise power and a signal to interference ratio for signal samples received via first and second wireless channels, the signal samples corresponding to pilot symbols transmitted in respective different structures via the first and second wireless channels. The method comprises: calculating first and second variables, each variable being a sequence of values computed from the received signal samples and the pilot symbols for each respective first and second wireless channel; generating first and second channel estimates from the first and second variables; combining the first and second channel estimates to generate a combined channel estimate; and generating at least one of the signal power, noise power and SIR using the combined channel estimate.
摘要翻译：一种用于生成对经由第一和第二无线信道接收的信号样本的信号功率，噪声功率和信号干扰比中的至少一个的估计的方法和对应系统，对应于在各个不同结构中发送的导频符号的信号样本通过第一和第二无线信道。该方法包括：计算第一和第二变量，每个变量是从接收的信号样本和每个相应的第一和第二无线信道的导频符号计算的值的序列; 从第一和第二变量产生第一和第二信道估计; 组合第一和第二信道估计以产生组合信道估计; 以及使用组合的信道估计来产生信号功率，噪声功率和SIR中的至少一个。

32. 发明授权

US07796700B2 Method and system for computing log-likelihood ratios for coded quadrature amplitude modulated signals 有权
标题翻译：用于计算编码正交幅度调制信号的对数似然比的方法和系统
公开(公告)号：US07796700B2
公开(公告)日：2010-09-14
申请号：US11258385
申请日：2005-10-26
申请人： Steve Allpress , Steve Felix , Carlo Luschi
发明人： Steve Allpress , Steve Felix , Carlo Luschi
IPC分类号： H04L23/02
CPC分类号： H04L27/3416 , H03M13/2957 , H04L1/0052 , H04L1/0055 , H04L1/0066 , H04L25/03171 , H04L25/03318 , H04L25/067 , H04L27/38
摘要： According to an embodiment of the invention, a method and system is disclosed for determining log-likelihood ratios for a coded set of individual bits (40) of a quadrature amplitude modulation (QAM) codeword. In the method at most two constant values (33,35) may be determined to perform a set of predetermined functions, the output of each of function is based on the constant values and at least one received component corresponding to the codeword, to determine log-likelihood ratios (37) for each individual bit of the set of individual bits of the codeword. The QAM codeword may correspond to at least a portion of a signal of a wireless device, such as a mobile third-generation device operating according to a Wideband Code-Division Multiple Access (WCDMA) standard.
摘要翻译：根据本发明的实施例，公开了一种用于确定正交幅度调制（QAM）码字的单独比特（40）的编码集合的对数似然比的方法和系统。在该方法中，可以确定最多两个常数值（33,35）以执行一组预定函数，每个函数的输出基于常数值和至少一个与码字对应的接收到的分量，以确定日志 - 码字的各个比特组的每个个别比特的似然比（37）。 QAM码字可以对应于无线设备的信号的至少一部分，诸如根据宽带码分多址（WCDMA）标准操作的移动第三代设备。

33. 发明申请

US20060104378A1 Method and system for computing log-likelihood ratios for coded quadrature amplitude modulated signals 有权
标题翻译：用于计算编码正交幅度调制信号的对数似然比的方法和系统
公开(公告)号：US20060104378A1
公开(公告)日：2006-05-18
申请号：US11258385
申请日：2005-10-26
申请人： Steve Allpress , Steven Felix , Carlo Luschi
发明人： Steve Allpress , Steven Felix , Carlo Luschi
IPC分类号： H04L5/12
CPC分类号： H04L27/3416 , H03M13/2957 , H04L1/0052 , H04L1/0055 , H04L1/0066 , H04L25/03171 , H04L25/03318 , H04L25/067 , H04L27/38
摘要： According to an embodiment of the invention, a method and system is disclosed for determining log-likelihood ratios for a coded set of individual bits (40) of a quadrature amplitude modulation (QAM) codeword. In the method at most two constant values (33,35) may be determined to perform a set of predetermined functions, the output of each of function is based on the constant values and at least one received component corresponding to the codeword, to determine log-likelihood ratios (37) for each individual bit of the set of individual bits of the codeword. The QAM codeword may correspond to at least a portion of a signal of a wireless device, such as a mobile third-generation device operating according to a Wideband Code-Division Multiple Access (WCDMA) standard.
摘要翻译：根据本发明的实施例，公开了一种用于确定正交幅度调制（QAM）码字的单独比特（40）的编码集合的对数似然比的方法和系统。在该方法中，可以确定最多两个常数值（33,35）以执行一组预定函数，每个函数的输出基于常数值和至少一个与码字对应的接收到的分量，以确定日志 - 码字的各个比特组的每个个别比特的似然比（37）。 QAM码字可以对应于无线设备的信号的至少一部分，诸如根据宽带码分多址（WCDMA）标准操作的移动第三代设备。

34. 发明授权

US06668030B2 Radio communication systems 有权
标题翻译：无线电通信系统
公开(公告)号：US06668030B2
公开(公告)日：2003-12-23
申请号：US09848504
申请日：2001-05-03
申请人： Alexandr Kuzminskiy , Carlo Luschi , Paul Edward Strauch , Ran-Hong Yan
发明人： Alexandr Kuzminskiy , Carlo Luschi , Paul Edward Strauch , Ran-Hong Yan
IPC分类号： H04B110
CPC分类号： H04L1/20 , H04B7/005 , H04L1/06 , H04L2025/03566 , H04L2025/03726
摘要： A mobile telephone system includes a base station which establishes a link with a selected mobile station. The received signal from the mobile station will include a noise component as well as a possible interference component from another mobile station operating at the same frequency in another cell. The base station has a trellis based equalization system which operates on the assumption that the received signal includes components which have a predominantly Gaussian characteristic. A switch controller determines when the interference component (which is non-gaussian) in the received signal becomes a dominant component and operates to switch a spatio-temporal filter into the circuit instead of the trellis based equalization system, to improve the bit error rate performance.
摘要翻译：移动电话系统包括与所选择的移动站建立链接的基站。来自移动台的接收信号将包括噪声分量以及来自在另一小区中以相同频率工作的另一移动站的可能干扰分量。基站具有基于网格的均衡系统，其基于接收信号包括具有主要高斯特性的分量来运行。开关控制器确定接收信号中的干扰分量（其是非高斯）何时成为主要分量并且操作以将时空滤波器切换到电路而不是基于网格的均衡系统，以提高误码率性能。

35. 发明授权

US06459728B1 Iterative channel estimation 有权
标题翻译：迭代信道估计
公开(公告)号：US06459728B1
公开(公告)日：2002-10-01
申请号：US09302764
申请日：1999-04-30
申请人： Israel Bar-David , Carlo Luschi , Ran-Hong Yan
发明人： Israel Bar-David , Carlo Luschi , Ran-Hong Yan
IPC分类号： H04L2701
CPC分类号： H04L25/0202 , H04L25/0212 , H04L25/0236
摘要： A method and apparatus for estimating channel impulse response and data in a signal transmitted over a channel in a communication system. The channel impulse response is estimated uses correlative channel sounding, and then, using the estimated channel impulse response, the data in the signal is estimated. The output is then fed back to the channel impulse response estimator and the channel impulse estimation is repeated. The data estimation and channel impulse response estimation may be iterated a number of times.
摘要翻译：一种用于估计在通信系统中通过信道发送的信号中的信道脉冲响应和数据的方法和装置。估计信道脉冲响应使用相关信道探测，然后使用估计的信道脉冲响应，估计信号中的数据。然后将输出反馈到信道脉冲响应估计器，并重复信道脉冲估计。数据估计和信道脉冲响应估计可以重复多次。

36. 发明授权

US09509392B2 Rank signaling in spatial multiplexing 有权
标题翻译：空间复用中的等级信令
公开(公告)号：US09509392B2
公开(公告)日：2016-11-29
申请号：US13639081
申请日：2011-04-12
申请人： Tarik Tabet , Carlo Luschi
发明人： Tarik Tabet , Carlo Luschi
IPC分类号： H04B7/06 , H04L1/00
CPC分类号： H04B7/0697 , H04B7/063 , H04L1/0025
摘要： Method, receiver and computer program product for processing a signal transmitted over a wireless network from a plurality of spatially separated transmit antennas of a transmitter using a Multiple-Input Multiple-Output transmission. The signal is received at a plurality of receive antennas, the signal comprising a plurality of data streams. The channel quality for each of the data streams in the received signal is determined and based on the determined channel quality of the data streams, the number of independent data streams that can be supported in the Multiple-Input Multiple-Output transmission of the signal is determined. An indication of the determined number is transmitted to the transmitter.
摘要翻译：用于处理使用多输入多输出传输从发射机的多个空间分离的发射天线通过无线网络传输的信号的方法，接收机和计算机程序产品。在多个接收天线处接收信号，该信号包括多个数据流。确定接收信号中每个数据流的信道质量，并且基于所确定的数据流的信道质量，可以在信号的多输入多输出传输中支持的独立数据流的数量为决心。将确定的号码的指示发送到发射机。

37. 发明授权

US09479215B2 Processing digital samples in a wireless receiver 有权
标题翻译：在无线接收机中处理数字样本
公开(公告)号：US09479215B2
公开(公告)日：2016-10-25
申请号：US12016652
申请日：2008-01-18
申请人： Carlo Luschi , Simon Walker , Steve Allpress , Philip Jones
发明人： Carlo Luschi , Simon Walker , Steve Allpress , Philip Jones
IPC分类号： H04B1/707 , H04L25/02 , H04L25/03
CPC分类号： H04B1/707 , H04B2201/7071 , H04L25/0212 , H04L25/03012
摘要： A method of processing digital samples of a signal received at a receiver of a wireless communication system includes monitoring channel conditions and generating a channel indicator including at least one channel parameter by performing at least one of: estimating a channel mobility parameter and comparing it with a threshold; estimating a channel parameter of the energy of the channel outside a predefined temporal window, and comparing it with a threshold; estimating a channel temporal duration parameter and establishing if it meets predetermined criteria; estimating a channel-zero location parameter and establishing if it meets predetermined criteria; estimating a received-signal signal-to-disturbance power ratio, and comparing it to a threshold; estimating an estimated-channel-response signal-to-disturbance power ratio; estimating the degree of non-stationarity of the disturbance at the receiver input; and selecting one of a plurality of processing routines for processing the digital samples based on said channel indicator. Related receivers are also described.
摘要翻译：一种处理在无线通信系统的接收机处接收的信号的数字样本的方法包括监视信道状况并通过执行以下中的至少一个来生成包括至少一个信道参数的信道指示符：估计信道移动性参数并将其与阈; 估计在预定时间窗口之外的信道的能量的信道参数，并将其与阈值进行比较; 估计信道时间持续时间参数并确定它是否符合预定标准; 估计信道零位置参数并确定它是否符合预定标准; 估计接收信号信号与干扰功率比，并将其与阈值进行比较; 估计信道响应信号与干扰功率比; 估计接收机输入干扰的非平稳度; 以及基于所述信道指示符选择用于处理数字样本的多个处理例程之一。还描述了相关接收机。

38. 发明授权

US09191059B2 Processing digital samples in a wireless receiver 有权
标题翻译：在无线接收机中处理数字样本
公开(公告)号：US09191059B2
公开(公告)日：2015-11-17
申请号：US12794211
申请日：2010-06-04
申请人： Carlo Luschi , Gang Wang
发明人： Carlo Luschi , Gang Wang
IPC分类号： H03K9/00 , H04B1/707 , H04B1/7117 , H04L25/03 , H04L25/02
CPC分类号： H04B1/7113 , H04B1/707 , H04B1/7103 , H04B1/7115 , H04B1/7117 , H04B2201/7071 , H04B2201/70713 , H04B2201/709718 , H04L25/0212 , H04L25/03012
摘要： A method of processing digital samples of a signal received at a receiver of a wireless communication system includes monitoring channel conditions and generating a channel indicator including at least one channel parameter by performing at least one of: estimating a channel mobility parameter and comparing it with a threshold; estimating a channel parameter of the energy of the channel outside a predefined temporal window and comparing it with a threshold; estimating a channel temporal duration parameter and establishing if it meets predetermined criteria; estimating a channel-zero location parameter and establishing if it meets predetermined criteria; estimating a received-signal signal-to-disturbance power ratio and comparing it to a threshold; estimating an estimated-channel-response signal-to-disturbance power ratio; estimating the degree of non-stationarity of the disturbance at the receiver input; and selecting one of a plurality of processing routines for processing the digital samples based on said channel indicator. Related receivers are also described.
摘要翻译：一种处理在无线通信系统的接收机处接收的信号的数字样本的方法包括监视信道状况并通过执行以下中的至少一个来生成包括至少一个信道参数的信道指示符：估计信道移动性参数并将其与阈; 估计在预定时间窗口之外的信道的能量的信道参数并将其与阈值进行比较; 估计信道时间持续时间参数并确定它是否符合预定标准; 估计信道零位置参数并确定它是否符合预定标准; 估计接收信号信号与干扰功率比并将其与阈值进行比较; 估计信道响应信号与干扰功率比; 估计接收机输入干扰的非平稳度; 以及基于所述信道指示符选择用于处理数字样本的多个处理例程之一。还描述了相关接收机。

39. 发明授权

US08885780B2 Estimating signal to interference ratio in a wireless communications receiver 有权
标题翻译：估计无线通信接收机中的信号与干扰比
公开(公告)号：US08885780B2
公开(公告)日：2014-11-11
申请号：US12808161
申请日：2008-12-04
申请人： Carlo Luschi , Abdelkader Medles
发明人： Carlo Luschi , Abdelkader Medles
IPC分类号： H04B1/10 , H04B17/00
CPC分类号： H04B17/006 , H04B17/336
摘要： A method and corresponding system for generating an estimate of at least one of a signal power, a noise power and a signal to interference ratio for signal samples received via first and second wireless channels, the signal samples corresponding to pilot symbols transmitted in respective different structures via the first and second wireless channels. The method comprises: calculating first and second variables, each variable being a sequence of values computed from the received signal samples and the pilot symbols for each respective first and second wireless channel; generating first and second channel estimates from the first and second variables; combining the first and second channel estimates to generate a combined channel estimate; and generating at least one of the signal power, noise power and SIR using the combined channel estimate.
摘要翻译：一种用于生成对经由第一和第二无线信道接收的信号样本的信号功率，噪声功率和信号干扰比中的至少一个的估计的方法和对应系统，对应于在各个不同结构中发送的导频符号的信号样本通过第一和第二无线信道。该方法包括：计算第一和第二变量，每个变量是从接收的信号样本和每个相应的第一和第二无线信道的导频符号计算的值的序列; 从第一和第二变量产生第一和第二信道估计; 组合第一和第二信道估计以产生组合信道估计; 以及使用组合的信道估计来产生信号功率，噪声功率和SIR中的至少一个。

40. 发明授权

US08793561B2 Iterative decoding of signals received over a noisy channel using forward and backward recursions with warm-up initialization 有权
标题翻译：通过使用具有预热初始化的前向和后向递归，在噪声信道上接收信号的迭代解码
公开(公告)号：US08793561B2
公开(公告)日：2014-07-29
申请号：US13393022
申请日：2010-08-26
申请人： Steve Allpress , Carlo Luschi , Fabienne Hegarty
发明人： Steve Allpress , Colman Hegarty , Carlo Luschi
IPC分类号： H03M13/00 , H04L1/00 , H03M13/05 , H03M13/29 , H03M13/37 , H03M13/39 , G06F11/10
CPC分类号： H04L1/005 , G06F11/10 , H03M13/05 , H03M13/2957 , H03M13/3723 , H03M13/3905 , H03M13/3972 , H03M13/6362 , H03M13/653 , H04L1/0055 , H04L1/0066 , H04L1/0068
摘要： One aspect provides a method. The method comprises receiving a signal comprising a sequence of encoded symbols, each corresponding to one of a plurality of possible states. For each symbol in the sequence, the method further comprises determining a set of state metrics, each representing a probability that the respective symbol corresponds to the plurality of states. The method further comprises decoding the signal by processing runs of recursions using runs of forward recursions, whereby a later state metric in the sequence is updated based on a preceding state metric, and runs of recursions using runs of reverse recursions, whereby a preceding state metric in the sequence is updated based on a later state metric. The method further comprises outputting the decoded signal to a device. The decoding comprises performing a plurality of repeated iterations over the sequence.
摘要翻译：一方面提供了一种方法。该方法包括接收包括编码符号序列的信号，每一个对应于多个可能状态之一。对于序列中的每个符号，该方法还包括确定一组状态度量，每一个表示各个符号对应于多个状态的概率。该方法还包括使用正向递归运算来处理递归运算来对信号进行解码，由此基于先前状态度量来更新序列中的后续状态度量，并且使用反向递归运算来运行递归，由此前一状态度量在该序列中基于稍后的状态度量来更新该序列。该方法还包括将解码的信号输出到设备。解码包括在序列上执行多次重复迭代。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式