公开(公告)号：US20090296585A1

公开(公告)日：2009-12-03

申请号：US12226677

申请日：2006-04-27

申请人： Bruno Melis ,  Alfredo Ruscitto ,  Pietro Di Paola

发明人： Bruno Melis ,  Alfredo Ruscitto ,  Pietro Di Paola

IPC分类号： H04L12/26 ,  H04L27/28

CPC分类号： H04L25/022 ,  H04L25/0206 ,  H04L25/0226 ,  H04L25/0228 ,  H04L25/0258 ,  H04L25/03159 ,  H04L25/03292 ,  H04L25/03305 ,  H04L27/2613 ,  H04L27/262 ,  H04L2025/03414

摘要： A channel estimator for use in a receiver node receiving signals from a plurality of user terminals wherein each user terminal is allotted a respective set of transmission subcarriers and respective test signal sequences for transmission over the channel to be estimated. The channel estimator has stored therein information as to the respective sets of transmission subcarriers allotted to the user terminals for transmission as well as the discrete spectra of the respective test signal sequences allotted to the user terminals. Upon receiving from a plurality of user terminals signals including the respective test signal sequences transmitted over the channel by using the respective sets of transmission subcarriers allotted thereto, the estimator generates the discrete spectrum of the combined test signal received and performs channel estimation as a function of the discrete spectrum of the combined test signal and the discrete spectra of the test signal sequences allotted to the user terminals. A frequency domain channel estimation is performed for a single carrier frequency division multiple access system.

摘要翻译： 一种用于接收来自多个用户终端的信号的接收机节点的信道估计器，其中每个用户终端分配相应的一组发射子载波和各个测试信号序列，以便在待估计的信道上传输。 信道估计器在其中存储关于分配给用户终端进行传输的各组发送子载波的信息以及分配给用户终端的各个测试信号序列的离散频谱。 在从多个用户终端接收包括通过使用分配给它们的各组发送子载波的通过信道发送的各个测试信号序列的信号时，估计器产生接收的组合测试信号的离散频谱，并且执行信道估计作为 组合测试信号的离散频谱和分配给用户终端的测试信号序列的离散频谱。 对单载波频分多址系统进行频域信道估计。

公开(公告)号：US07848356B2

公开(公告)日：2010-12-07

申请号：US12226677

申请日：2006-04-27

申请人： Bruno Melis ,  Alfredo Ruscitto ,  Pietro Di Paola

发明人： Bruno Melis ,  Alfredo Ruscitto ,  Pietro Di Paola

IPC分类号： H04J1/00

CPC分类号： H04L25/022 ,  H04L25/0206 ,  H04L25/0226 ,  H04L25/0228 ,  H04L25/0258 ,  H04L25/03159 ,  H04L25/03292 ,  H04L25/03305 ,  H04L27/2613 ,  H04L27/262 ,  H04L2025/03414

摘要： A channel estimator for use in a receiver node receiving signals from a plurality of user terminals wherein each user terminal is allotted a respective set of transmission subcarriers and respective test signal sequences for transmission over the channel to be estimated. The channel estimator has stored therein information as to the respective sets of transmission subcarriers allotted to the user terminals for transmission as well as the discrete spectra of the respective test signal sequences allotted to the user terminals. Upon receiving from a plurality of user terminals signals including the respective test signal sequences transmitted over the channel by using the respective sets of transmission subcarriers allotted thereto, the estimator generates the discrete spectrum of the combined test signal received and performs channel estimation as a function of the discrete spectrum of the combined test signal and the discrete spectra of the test signal sequences allotted to the user terminals. A frequency domain channel estimation is performed for a single carrier frequency division multiple access system.

摘要翻译： 一种用于接收来自多个用户终端的信号的接收机节点的信道估计器，其中每个用户终端分配相应的一组发射子载波和各个测试信号序列，以便在待估计的信道上传输。 信道估计器在其中存储关于分配给用户终端进行传输的各组发送子载波的信息以及分配给用户终端的各个测试信号序列的离散频谱。 在从多个用户终端接收包括通过使用分配给它们的各组发送子载波的通过信道发送的各个测试信号序列的信号时，估计器产生接收的组合测试信号的离散频谱，并且执行信道估计作为 组合测试信号的离散频谱和分配给用户终端的测试信号序列的离散频谱。 对单载波频分多址系统进行频域信道估计。

公开(公告)号：US20110122931A1

公开(公告)日：2011-05-26

申请号：US12747136

申请日：2008-12-09

申请人： Fabrizio Tomatis ,  Pietro Di Paola

发明人： Fabrizio Tomatis ,  Pietro Di Paola

IPC分类号： H04L1/02 ,  H04B1/38 ,  H04B15/00

CPC分类号： H04B7/0894 ,  H04B1/7115 ,  H04B1/712 ,  H04L1/0631

摘要： A diversity receiver and a method of recovering symbols in a diversity receiver system comprises receiving first and second signals at first and second antenna elements. The first signal comprises first and second consecutive symbols modified by a first channel coefficient and the second signal comprises the first and second symbols modified by a second channel coefficient. The first and second signals are delayed and the first and second channel coefficients are estimated by applying the delayed first and second signals to a master Rake finger having first and second outputs for the estimated the first and second channel coefficients. A complex conjugate of the estimated second channel coefficient is produced. First and second composite signals are produced from the delayed first and second signals using a slave Rake finger by decoding the respective delayed first and second signals, producing a complex conjugate of the second composite signal, interleaving the first composite signal and the complex conjugate of the second composite signal and providing an interleaved signal output, and applying said interleaved signal output, the estimated first channel coefficient and the complex conjugate of the estimated second channel coefficient to a space time transmit diversity derotator for the recovery of the first and second symbols.

摘要翻译： 分集接收机和在分集接收机系统中恢复符号的方法包括在第一和第二天线元件处接收第一和第二信号。 第一信号包括由第一信道系数修改的第一和第二连续符号，并且第二信号包括由第二信道系数修改的第一和第二符号。 第一和第二信号被延迟，并且通过将延迟的第一和第二信号施加到具有用于估计的第一和第二信道系数的第一和第二输出的主耙式手指来估计第一和第二信道系数。 产生估计的第二通道系数的复共轭。 通过对相应延迟的第一和第二信号进行解码来产生第二复合信号的复共轭，交织第一复合信号和复共轭的复共轭，从第二和第二信号产生第一和第二复合信号， 第二复合信号并提供交织的信号输出，并将所估计的第一信道系数和所估计的第二信道系数的复共轭应用于空时发射分集解调器，用于恢复第一和第二符号。

公开(公告)号：US08385487B2

公开(公告)日：2013-02-26

申请号：US12747136

申请日：2008-12-09

申请人： Fabrizio Tomatis ,  Pietro Di Paola

发明人： Fabrizio Tomatis ,  Pietro Di Paola

IPC分类号： H04B7/10

CPC分类号： H04B7/0894 ,  H04B1/7115 ,  H04B1/712 ,  H04L1/0631

摘要： A diversity receiver and a method of recovering symbols in a diversity receiver system comprises receiving first and second signals at first and second antenna elements. The first signal comprises first and second consecutive symbols modified by a first channel coefficient and the second signal comprises the first and second symbols modified by a second channel coefficient. The first and second signals are delayed and the first and second channel coefficients are estimated by applying the delayed first and second signals to a master Rake finger having first and second outputs for the estimated the first and second channel coefficients. A complex conjugate of the estimated second channel coefficient is produced. First and second composite signals are produced from the delayed first and second signals using a slave Rake finger by decoding the respective delayed first and second signals, producing a complex conjugate of the second composite signal, interleaving the first composite signal and the complex conjugate of the second composite signal and providing an interleaved signal output, and applying said interleaved signal output, the estimated first channel coefficient and the complex conjugate of the estimated second channel coefficient to a space time transmit diversity derotator for the recovery of the first and second symbols.

摘要翻译： 分集接收机和在分集接收机系统中恢复符号的方法包括在第一和第二天线元件处接收第一和第二信号。 第一信号包括由第一信道系数修改的第一和第二连续符号，并且第二信号包括由第二信道系数修改的第一和第二符号。 第一和第二信号被延迟，并且通过将延迟的第一和第二信号施加到具有用于估计的第一和第二信道系数的第一和第二输出的主耙式手指来估计第一和第二信道系数。 产生估计的第二通道系数的复共轭。 通过对相应延迟的第一和第二信号进行解码来产生第二复合信号的复共轭，交织第一复合信号和复共轭的复共轭，从第二和第二信号产生第一和第二复合信号， 第二复合信号并提供交织的信号输出，并将所估计的第一信道系数和所估计的第二信道系数的复共轭应用于空时发射分集解调器，用于恢复第一和第二符号。