公开(公告)号：US08599070B2

公开(公告)日：2013-12-03

申请号：US13140498

申请日：2008-12-22

申请人： Ulf Lindgren ,  Fredrik Athley ,  Mikael Coldrey

发明人： Ulf Lindgren ,  Fredrik Athley ,  Mikael Coldrey

IPC分类号： H04B7/00

CPC分类号： H04B7/0417 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0656

摘要： The present invention relates to a first node (1) in a wireless communication system (2), where the first node (1) comprises at least two antenna ports (3, 4), and is arranged for communication with a second node (5) via a channel (H) by means of at least one antenna radiation lobe (6, 7, 8, 9). The second node (5) comprises at least two antenna ports (10, 11) and is positioned at a certain direction (12) in relation to the first node (1), and is arranged for transmitting one of at least two precoding weight set requests to the first node (1) at certain times. Each transmitted precoding weight set request is chosen in dependence of the channel (H) such that the first node (1) receives instructions for a certain beam-forming. The first node (1) is arranged to apply such a beam-forming that the precoding weight set requests received from the second node (5) have one certain distribution, of a set of at least one certain distribution, over a certain time period.

摘要翻译： 本发明涉及无线通信系统（2）中的第一节点（1），其中第一节点（1）包括至少两个天线端口（3,4），并且被布置为与第二节点（5）通信 ）通过至少一个天线辐射波束（6,7,8,9）经由通道（H）。 第二节点（5）包括至少两个天线端口（10,11）并且相对于第一节点（1）位于特定方向（12），并且被布置用于发送至少两个预编码权重集合 在特定时间向第一个节点（1）发出请求。 根据信道（H）选择每个发送的预编码权重集请求，使得第一节点（1）接收到用于特定波束形成的指令。 第一节点（1）被布置为在一定时间段内应用这样的波束形成，即从第二节点（5）接收的预编码权重集请求具有一组至少一个特定分布的一定分布。

公开(公告)号：US08509334B2

公开(公告)日：2013-08-13

申请号：US12682706

申请日：2007-10-15

申请人： Ulf Lindgren ,  Leonid Krasny ,  Henrik Sahlin

发明人： Ulf Lindgren ,  Leonid Krasny ,  Henrik Sahlin

IPC分类号： H04B7/02 ,  H04L27/06

CPC分类号： H04L25/03343 ,  H04B7/0617 ,  H04B7/0626 ,  H04L2025/03426 ,  H04L2025/03802

摘要： A method for processing signals to be transmitted in a MIMO system from a transmitter having at least two transmitting antennas to a receiver having at least two receiving antennas on a frequency selective communication channel. The method comprises estimating elements of a channel matrix H(q−1) based on time delays and complex valued coefficients associated with the communication channel to provide an estimated frequency variation function of each element of the channel matrix, and pre-coding the signals to be transmitted based on the estimated frequency variation function for each element. The invention also relates to a MIMO system; and a transmitter and a receiver for use in a MIMO system.

摘要翻译： 一种用于处理在MIMO系统中从具有至少两个发射天线的发射机发射到在频率选择性通信信道上具有至少两个接收天线的接收机的信号的方法。 该方法包括基于与通信信道相关联的时间延迟和复值系数来估计信道矩阵H（q-1）的元素，以提供信道矩阵的每个元素的估计频率变化函数，并将该信号预编码为 基于每个元素的估计频率变化函数来发送。 本发明还涉及MIMO系统; 以及用于MIMO系统的发射机和接收机。

公开(公告)号：US20120033683A1

公开(公告)日：2012-02-09

申请号：US13264192

申请日：2009-04-16

申请人： Henrik Sahlin ,  Ulf Lindgren ,  Peter Naucler ,  Chester Park

发明人： Henrik Sahlin ,  Ulf Lindgren ,  Peter Naucler ,  Chester Park

IPC分类号： H04J1/00

CPC分类号： H04L27/2647 ,  H04L25/0204 ,  H04L25/0246 ,  H04L25/025 ,  H04L25/03159 ,  H04L25/03216 ,  H04L25/03254 ,  H04L25/0328 ,  H04L25/03299 ,  H04L25/03305 ,  H04L25/03318 ,  H04L2025/03375

摘要： The present invention relates to a method in a receiver for decoding at least two received communication signals, wherein the communication signals are modulated, pre-coded by a discrete Fourier transform and transmitted by means of single-carrier frequency division multiple access scheme (SC-FDMA). The method comprises the steps of: performing an antenna combining and equalization on a signal observed at the receiver; performing inverse discrete Fourier transform on a model of the observed signal; whitening a time domain model of the observed signal; and jointly detecting the received at least two communication signals by performing soft value calculations based on maximum likelihood detection of a whitened time domain model using a whitened time domain channel estimate.

摘要翻译： 本发明涉及用于对至少两个接收到的通信信号进行解码的接收机中的方法，其中通过离散付里叶变换对通信信号进行调制，预编码，并通过单载波频分多址方案（SC- FDMA）。 该方法包括以下步骤：对接收机上观察到的信号执行天线组合和均衡; 对观测信号的模型执行逆离散傅里叶变换; 美白观察信号的时域模型; 并且通过使用白化的时域信道估计基于白化时域模型的最大似然检测执行软值计算来共同检测所接收的至少两个通信信号。

公开(公告)号：US07948436B2

公开(公告)日：2011-05-24

申请号：US12530409

申请日：2007-03-09

申请人： Ulf Lindgren ,  Fredrik Athley

发明人： Ulf Lindgren ,  Fredrik Athley

IPC分类号： H01Q3/00 ,  H01Q3/02

CPC分类号： G01S3/043 ,  G01S3/74

摘要： The present invention relates to an array antenna arrangement comprising at least two antenna sub-arrays and at least one antenna element in each antenna sub-array. The array antenna arrangement is adapted for calculation of a total covariance matrix (R) of a received signal vector (x). The array antenna arrangement further comprises at least one switch, where the number of switches corresponds to the number of antenna elements in each antenna sub-array. Each switch is connected to a respective radio chain, and is arranged to connect the antenna elements of a respective corresponding antenna sub-array to the respective radio chain cyclically. At least one full switch cycle, comprising a set of received signals for each switch configuration, is carried out for a calculation of the total covariance matrix (R). The present invention also relates to a corresponding method.

摘要翻译： 本发明涉及包括至少两个天线子阵列和每个天线子阵列中的至少一个天线元件的阵列天线装置。 阵列天线装置适于计算接收信号矢量（x）的总协方差矩阵（R）。 阵列天线装置还包括至少一个开关，其中开关的数量对应于每个天线子阵列中的天线元件的数量。 每个开关连接到相应的无线电链，并且被布置成将各个对应的天线子阵列的天线元件循环地连接到相应的无线电链。 执行包括用于每个开关配置的一组接收信号的至少一个完整的开关周期以用于计算总协方差矩阵（R）。 本发明还涉及相应的方法。

公开(公告)号：US20110026626A1

公开(公告)日：2011-02-03

申请号：US12936301

申请日：2008-04-07

申请人： Henrik Sahlin ,  Ulf Lindgren ,  Kambiz Zangi

发明人： Henrik Sahlin ,  Ulf Lindgren ,  Kambiz Zangi

IPC分类号： H04L27/28

CPC分类号： H04L5/0037 ,  H04L5/0023 ,  H04W56/0005 ,  H04W88/085 ,  H04W92/10

摘要： Radio transmission in an Orthogonal Frequency Division Multiplex, OFDM, based cellular wireless radio transmission system, wherein radio access equipment of the system connects to multiple geographically spread radio antennas of a Distributed Antenna System, DAS, for transmitting to and receiving radio signals from user equipment. Transmit timings for radio transmission between the user equipment and the antennas of the DAS are established. The radio transmission is scheduled based on the established transmit timings.

摘要翻译： 在正交频分复用OFDM基于蜂窝无线电传输系统中的无线电传输，其中系统的无线电接入设备连接到分布式天线系统DAS的多个地理上扩展的无线电天线，用于发送和接收来自用户设备的无线电信号 。 建立用户设备和DAS天线之间无线电传输的发送定时。 基于建立的发送定时来调度无线电传输。

公开(公告)号：US20100255804A1

公开(公告)日：2010-10-07

申请号：US12745801

申请日：2007-12-03

申请人： Ulf Lindgren

发明人： Ulf Lindgren

IPC分类号： H04B1/10 ,  H04B17/00

CPC分类号： H01Q3/26 ,  H01Q3/2605

摘要： The present invention relates to a method for identifying components in a telecommunication system, which method comprises representing a uniform linear array, ULA, antenna, having at least two antenna elements, by an array factor polynomial comprising at least two terms, each term having a certain weight (Wk); setting said weights (WK) to desired values such that a desired antenna radiation pattern is acquired. Furthermore, the method comprises the steps: changing the desired weights such that a number of sets of desired weights (Wk) is acquired, such that the ULA antenna scans a spatial portion, a certain scan corresponding to a certain set of desired weights, analyzing a received signal (h0) being represented by a received array factor polynomial having terms with certain received weights, which is parameterized by at least one pole; and using each corresponding set of desired weights (Wk) and received weights to determine the pole parameterization.

摘要翻译： 本发明涉及一种用于识别电信系统中的组件的方法，该方法包括通过包括至少两个术语的阵列因子多项式来表示具有至少两个天线元件的均匀线性阵列ULA，天线，每个术语具有 一定重量（Wk）; 将所述权重（WK）设置为期望值，使得获得期望的天线辐射图。 此外，该方法包括以下步骤：改变所需的权重以获得多个所需权重集合（Wk），使得ULA天线扫描空间部分，对应于一组所需权重的特定扫描，分析 接收信号（h0）由接收到的阵列因子多项式表示，所述阵列因子多项式具有由至少一个极参数化的具有特定接收权重的项; 并使用每个相应的所需权重集合（Wk）和接收到的权重来确定极点参数化。

公开(公告)号：US20080293362A1

公开(公告)日：2008-11-27

申请号：US12088652

申请日：2006-09-29

申请人： Ulf Lindgren

发明人： Ulf Lindgren

IPC分类号： H04B1/12 ,  H04B15/00

CPC分类号： H04B7/002 ,  H04B7/10

摘要： A method and device for compensation of received signal components at a user equipment (UE) used for receiving signal components from a radio base station (RBS). The signal components have at least a first and a second polarization orientation, respectively. The intended reception of the signal component (Yh(n)) having the first polarization deviates from the polarization orientation of the transmitted signal component (Xh(n)) having the first polarization by a first angle (φ), and the intended reception of the signal component (Yv(n)) having the second polarization deviates from the polarization orientation of the transmitted signal component (xv(n)) having the second polarization by a second angle (β). The method comprises the steps: determining the correlation values (Ryw, Ryvy, Ryyv, Ryyy) for the received signals (Yh, Yv) at a first time (k) and a second time (m); using these values to determine the deviation angles (φ, θ) performing said compensation using the deviation angles (φ, θ).

摘要翻译： 一种用于在用于从无线电基站（RBS）接收信号分量的用户设备（UE）处补偿接收信号分量的方法和装置。 信号分量分别具有至少第一和第二极化取向。 具有第一偏振的信号分量（Yh（n））的预期接收偏离了具有第一偏振的第一偏振的发送信号分量（Xh（n））的偏振取向偏移第一角度（phi） 具有第二极化的信号分量（Yv（n））偏离具有第二偏振的发送信号分量（xv（n））的偏振方位第二角度（β）。 该方法包括以下步骤：在第一时间（k）和第二时间（m）确定接收信号（Yh，Yv）的相关值（Ryw，Ryvy，Ryyv，Ryyy）; 使用这些值来确定使用偏差角（phi，θ）执行所述补偿的偏差角（phi，θ）。

公开(公告)号：US09628232B2

公开(公告)日：2017-04-18

申请号：US12936301

申请日：2008-04-07

申请人： Henrik Sahlin ,  Ulf Lindgren ,  Kambiz Zangi

发明人： Henrik Sahlin ,  Ulf Lindgren ,  Kambiz Zangi

IPC分类号： H04L5/06 ,  H04L5/26 ,  H04W56/00 ,  H04W88/08 ,  H04W92/10 ,  H04L5/00

CPC分类号： H04L5/0037 ,  H04L5/0023 ,  H04W56/0005 ,  H04W88/085 ,  H04W92/10

摘要： Radio transmission in an Orthogonal Frequency Division Multiplex, OFDM, based cellular wireless radio transmission system, wherein radio access equipment of the system connects to multiple geographically spread radio antennas of a Distributed Antenna System, DAS, for transmitting to and receiving radio signals from user equipment. Transmit timings for radio transmission between the user equipment and the antennas of the DAS are established. The radio transmission is scheduled based on the established transmit timings.

公开(公告)号：US08249534B2

公开(公告)日：2012-08-21

申请号：US12745801

申请日：2007-12-03

申请人： Ulf Lindgren

发明人： Ulf Lindgren

IPC分类号： H04B17/00

CPC分类号： H01Q3/26 ,  H01Q3/2605

摘要： The present invention relates to a method for identifying components in a telecommunication system, which method comprises representing a uniform linear array, ULA, antenna, having at least two antenna elements, by an array factor polynomial comprising at least two terms, each term having a certain weight (Wk); setting said weights (WK) to desired values such that a desired antenna radiation pattern is acquired. Furthermore, the method comprises the steps: changing the desired weights such that a number of sets of desired weights (Wk) is acquired, such that the ULA antenna scans a spatial portion, a certain scan corresponding to a certain set of desired weights, analyzing a received signal (h0) being represented by a received array factor polynomial having terms with certain received weights, which is parameterized by at least one pole; and using each corresponding set of desired weights (Wk) and received weights to determine the pole parameterization.

摘要翻译： 本发明涉及用于识别电信系统中的组件的方法，该方法包括通过包括至少两个术语的阵列因子多项式来表示具有至少两个天线元件的均匀线性阵列ULA，天线，每个术语具有 一定重量（Wk）; 将所述权重（WK）设置为期望值，使得获得期望的天线辐射图。 此外，该方法包括以下步骤：改变所需的权重以获得多个所需权重集合（Wk），使得ULA天线扫描空间部分，对应于一组所需权重的特定扫描，分析 接收信号（h0）由接收到的阵列因子多项式表示，所述阵列因子多项式具有由至少一个极参数化的具有特定接收权重的项; 并使用每个相应的所需权重集合（Wk）和接收到的权重来确定极点参数化。

公开(公告)号：US20110248889A1

公开(公告)日：2011-10-13

申请号：US13140498

申请日：2008-12-22

申请人： Ulf Lindgren ,  Fredrik Athley ,  Mikael Coldrey

发明人： Ulf Lindgren ,  Fredrik Athley ,  Mikael Coldrey

IPC分类号： H01Q3/00

CPC分类号： H04B7/0417 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0656

摘要： The present invention relates to a first node (1) in a wireless communication system (2), where the first node (1) comprises at least two antenna ports (3, 4), and is arranged for communication with a second node (5) via a channel (H) by means of at least one antenna radiation lobe (6, 7, 8, 9). The second node (5) comprises at least two antenna ports (10, 11) and is positioned at a certain direction (12) in relation to the first node (1), and is arranged for transmitting one of at least two precoding weight set requests to the first node (1) at certain times. Each transmitted precoding weight set request is chosen in dependence of the channel (H) such that the first node (1) receives instructions for a certain beam-forming. The first node (1) is arranged to apply such a beam-forming that the precoding weight set requests received from the second node (5) have one certain distribution, of a set of at least one certain distribution, over a certain time period.

摘要翻译： 本发明涉及无线通信系统（2）中的第一节点（1），其中第一节点（1）包括至少两个天线端口（3,4），并且被布置为与第二节点（5）通信 ）通过至少一个天线辐射波束（6,7,8,9）经由通道（H）。 第二节点（5）包括至少两个天线端口（10,11）并且相对于第一节点（1）位于特定方向（12），并且被布置用于发送至少两个预编码权重集合 在特定时间向第一个节点（1）发出请求。 根据信道（H）选择每个发送的预编码权重集请求，使得第一节点（1）接收到用于特定波束形成的指令。 第一节点（1）被布置为在一定时间段内应用这样的波束形成，即从第二节点（5）接收的预编码权重集请求具有一组至少一个特定分布的一定分布。