公开(公告)号：US08401591B2

公开(公告)日：2013-03-19

申请号：US13209968

申请日：2011-08-15

申请人： Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

发明人： Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

IPC分类号： H04B1/38

CPC分类号： H04B1/02 ,  H04B1/06 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0697 ,  H04B7/0808 ,  H04B7/0814 ,  H04B7/082 ,  H04B7/0874 ,  H04L1/0618

摘要： Systems and methods that provide channel-adaptive antenna selection in multi-antenna-element communication systems are provided. In one embodiment, a method that selects a subset of receive antennas of a receiver to receive a transmitted RF signal may include, for example, one or more of the following: establishing possible subsets of the receive antennas; determining sets of channel parameter statistics corresponding to the possible subsets of the receive antennas; computing output bit error rates of the receiver, each output bit error rate being computed based on at least one set of channel parameter statistics; selecting a particular possible subset of the receive antennas based upon a criterion predicated on the computed output bit error rates; and connecting one or more RF chains of the receiver to the receive antennas of the selected particular possible subset.

公开(公告)号：US20110274206A1

公开(公告)日：2011-11-10

申请号：US13186342

申请日：2011-07-19

申请人： Severine Catreux ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

发明人： Severine Catreux ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

IPC分类号： H04L27/00 ,  H04B1/02

CPC分类号： H04L1/0002 ,  H04B7/0615 ,  H04B7/0842 ,  H04L27/2608

摘要： A system and method for generating weight values based on maximum data rate for weighting elements included within signal weighting and combining arrangements used in various multi-antenna transmitter and receiver structures is disclosed herein. Weighting values for a given signal combining arrangement are set so as to maximize an output data rate of the applicable multi-antenna system in the presence of adaptive bit loading of the subcarriers of a transmitted signal. The disclosed techniques may be employed to maximize a data rate of a multi-antenna communication system by using adaptive bit loading and RF and baseband weighting schemes. In this case a search is conducted over various combinations of RF and baseband weights in order to find the weight combination which, when adaptive bit loading is also employed, maximizes the data rate.

摘要翻译： 本文公开了一种用于基于包括在信号加权中的加权元件的最大数据速率和在各种多天线发射机和接收机结构中使用的组合布置来生成权重值的系统和方法。 设定给定信号组合装置的加权值，以便在存在发射信号的子载波的自适应位加载的情况下，最大化可应用的多天线系统的输出数据速率。 所公开的技术可以用于通过使用自适应比特加载和RF和基带加权方案来最大化多天线通信系统的数据速率。 在这种情况下，对RF和基带权重的各种组合进行搜索，以便找到当采用自适应比特加载时的权重组合，使数据速率最大化。

公开(公告)号：US08036711B2

公开(公告)日：2011-10-11

申请号：US13027702

申请日：2011-02-15

申请人： Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

发明人： Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

IPC分类号： H04M1/00 ,  H04B1/06

CPC分类号： H04B7/0874 ,  H04B1/7115 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0697 ,  H04B7/0808 ,  H04B7/0814 ,  H04L1/0618

摘要： Systems and methods that provide antenna selection in multi-antenna-element communication systems are provided. In one embodiment, a system that selects N antenna elements in an M-antenna-element transmitter or an M-antenna-element receiver, in which N is less than M, may include, for example, M antenna elements in the M-antenna-element transmitter or the M-antenna-element receiver; N RF chains; and a switch coupled to the N RF chains. The M-antenna-element receiver may determine a bit error rate for each possible N antenna element subset of the M antenna elements. The M-antenna-element receiver may determine the particular N antenna element subset with a lowest bit error rate. In response to the determination of the particular N antenna element subset with the lowest bit error rate, the switch may couple the N RF chains to the particular N antenna element subset with the lowest bit error rate.

摘要翻译： 提供了在多天线元件通信系统中提供天线选择的系统和方法。 在一个实施例中，选择N小于M的M天线单元发射机或M天线单元接收机中的N个天线元素的系统可以包括例如M天线中的M个天线元件 元件发射器或M天线元件接收器; N射频链; 以及耦合到N个RF链的开关。 M天线单元接收机可以确定M个天线元件的每个可能的N个天线元素子集的误比特率。 M天线单元接收机可以以最低误码率确定特定的N个天线元件子集。 响应于具有最低误码率的特定N个天线元件子集的确定，开关可将N个RF链耦合到具有最低误码率的特定N个天线元件子集。

公开(公告)号：US20110150116A1

公开(公告)日：2011-06-23

申请号：US13037611

申请日：2011-03-01

申请人： Jun Zheng ,  Chengjin Zhang ,  Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter van Rooyen

发明人： Jun Zheng ,  Chengjin Zhang ,  Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter van Rooyen

IPC分类号： H04L27/28

CPC分类号： H04B7/0697 ,  H04B7/0452 ,  H04B7/0626

摘要： A method and system for a double search algorithm of user group selection for multiuser MIMO downlink transmission are provided. The use of optimal brute-force user group selection may require high computational expense. A first search operation may be based on a first user having a channel gain greater than that of other users, while a second search operation may be based on a second user having a channel gain greater than that of the remaining users. A maximized system capacity may be determined based on the maximized system capacities determined in the first and second search loop. A receiver pair associated with the maximized system capacity may be selected as the user group. The double search algorithm may reduce the computational complexity while achieving performances that may exceed the TDMA scheme and be similar to that of systems with ideal CSI at the transmitter.

摘要翻译： 提供了一种用于多用户MIMO下行链路传输的用户组选择双重搜索算法的方法和系统。 使用最佳暴力用户组选择可能需要较高的计算费用。 第一搜索操作可以基于具有大于其他用户的信道增益的信道增益的第一用户，而第二搜索操作可以基于具有大于剩余用户的信道增益的信道增益的第二用户。 可以基于在第一和第二搜索循环中确定的最大化的系统容量来确定最大化的系统容量。 可以选择与最大系统容量相关联的接收机对作为用户组。 双重搜索算法可以降低计算复杂度，同时实现可能超过TDMA方案的性能，并且类似于在发射机处具有理想CSI的系统的性能。

公开(公告)号：US20110086671A1

公开(公告)日：2011-04-14

申请号：US12953005

申请日：2010-11-23

申请人： Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

发明人： Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

IPC分类号： H04M1/00

CPC分类号： H04B1/02 ,  H04B1/06 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0697 ,  H04B7/0808 ,  H04B7/0814 ,  H04B7/082 ,  H04B7/0874 ,  H04L1/0618

摘要： Systems and methods that provide channel-adaptive antenna selection in multi-antenna-element communication systems are provided. In one embodiment, a method that selects a subset of receive antennas of a receiver to receive a transmitted RF signal may include, for example, one or more of the following: establishing possible subsets of the receive antennas; determining sets of channel parameter statistics corresponding to the possible subsets of the receive antennas; computing output bit error rates of the receiver, each output bit error rate being computed based on at least one set of channel parameter statistics; selecting a particular possible subset of the receive antennas based upon a criterion predicated on the computed output bit error rates; and connecting one or more RF chains of the receiver to the receive antennas of the selected particular possible subset.

公开(公告)号：US07899421B2

公开(公告)日：2011-03-01

申请号：US11231501

申请日：2005-09-21

申请人： Jun Zheng ,  Chengjin Zhang ,  Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen

发明人： Jun Zheng ,  Chengjin Zhang ,  Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen

IPC分类号： H04B1/18

CPC分类号： H04B7/0697 ,  H04B7/0452 ,  H04B7/0626

摘要： A method and system for a double search algorithm of user group selection for multiuser MIMO downlink transmission are provided. The use of optimal brute-force user group selection may require high computational expense. A first search operation may be based on a first user having a channel gain greater than that of other users, while a second search operation may be based on a second user having a channel gain greater than that of the remaining users. A maximized system capacity may be determined based on the maximized system capacities determined in the first and second search loop. A receiver pair associated with the maximized system capacity may be selected as the user group. The double search algorithm may reduce the computational complexity while achieving performances that may exceed the TDMA scheme and be similar to that of systems with ideal CSI at the transmitter.

摘要翻译： 提供了一种用于多用户MIMO下行链路传输的用户组选择双重搜索算法的方法和系统。 使用最佳暴力用户组选择可能需要较高的计算费用。 第一搜索操作可以基于具有大于其他用户的信道增益的信道增益的第一用户，而第二搜索操作可以基于具有大于剩余用户的信道增益的信道增益的第二用户。 可以基于在第一和第二搜索循环中确定的最大化的系统容量来确定最大化的系统容量。 可以选择与最大系统容量相关联的接收机对作为用户组。 双重搜索算法可以降低计算复杂度，同时实现可能超过TDMA方案的性能，并且类似于在发射机处具有理想CSI的系统的性能。

公开(公告)号：US07535969B2

公开(公告)日：2009-05-19

申请号：US10903876

申请日：2004-07-29

申请人： Severine Catreux ,  Vinko Erceg ,  Pieter Roux ,  Pieter van Rooyen ,  Jack Winters

发明人： Severine Catreux ,  Vinko Erceg ,  Pieter Roux ,  Pieter van Rooyen ,  Jack Winters

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L1/0002 ,  H04B7/0615 ,  H04B7/0842 ,  H04L27/2608

摘要： A system and method for generating transmit weighting values for signal weighting that may be used in various transmitter and receiver structures is disclosed herein. The weighting values are determined as a function of frequency based upon a state of a communication channel and the transmission mode of the signal. In variations, weighting of the weighted signal that is transmitted through each of a plurality of antennas is carried out with one of a corresponding plurality of transmit antenna spatial weights. In these variations, a search may be conducted over various combinations of transmit weighting values and transmit antenna spatial weights in order to find a weight combination that optimizes a performance measure such as the output signal-to-noise ratio, the output bit error rate or the output packet error rate.

摘要翻译： 本文公开了一种用于产生可用于各种发射机和接收机结构中的信号加权的发射加权值的系统和方法。 基于通信信道的状态和信号的发送模式，将加权值确定为频率的函数。 在变型中，通过多个天线空间权重中的一个来执行通过多个天线中的每一个传输的加权信号的加权。 在这些变型中，可以对发射加权值和发射天线空间权重的各种组合进行搜索，以便找到优化诸如输出信噪比，输出误码率或性能测量的性能测量的权重组合， 输出包错误率。

公开(公告)号：US07502432B2

公开(公告)日：2009-03-10

申请号：US10891443

申请日：2004-07-13

申请人： Severine Catreux ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

发明人： Severine Catreux ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

IPC分类号： H04B7/10

CPC分类号： H04B7/0854 ,  H04L1/0054 ,  H04L27/2608

摘要： A signal weighting and combining method implemented within a receiver having a plurality of receive antennas is disclosed herein. Each receive antenna is disposed to produce a received RF signal in response to a transmitted RF signal received through a channel. The method includes weighting the plurality of received RF signals produced by the antennas in accordance with a corresponding plurality of RF weighting values selected to minimize an output bit error rate of the receiver, thereby forming a plurality of weighted RF signals. The method further includes combining ones of the plurality of weighted RF signals in order to form one or more combined RF signals. A similar splitting and weighting method capable of being implemented within a transmitter having a plurality of transmit antennas is also disclosed.

摘要翻译： 本文公开了在具有多个接收天线的接收机内实现的信号加权和组合方法。 每个接收天线被布置成响应于通过信道接收的发射的RF信号产生接收的RF信号。 该方法包括根据所选择的相应多个RF加权值对由天线产生的多个接收的RF信号进行加权，以使接收机的输出误码率最小化，从而形成多个加权的RF信号。 该方法还包括组合多个加权RF信号中的一个，以便形成一个或多个组合RF信号。 还公开了能够在具有多个发射天线的发射机内实现的类似的分离和加权方法。

公开(公告)号：US20070066230A1

公开(公告)日：2007-03-22

申请号：US11231699

申请日：2005-09-21

申请人： Chengjin Zhang ,  Jun Zheng ,  Vinko Erceg ,  Severine Catreux-Erceg ,  Pieter Roux ,  Pieter van Rooyen

发明人： Chengjin Zhang ,  Jun Zheng ,  Vinko Erceg ,  Severine Catreux-Erceg ,  Pieter Roux ,  Pieter van Rooyen

IPC分类号： H04B17/00 ,  H04B7/00

CPC分类号： H04B7/0452 ,  H04B17/382 ,  H04W52/42

摘要： Various aspects of a method and a system for a range reduction scheme for user selection in a multiuser MIMO downlink transmission are presented. Aspects of a system for range reduction may comprise a range reduction processor that determines a plurality of channel measurements corresponding to a plurality of signals. The range reduction processor may compute a plurality of channel capacities based on the channel measurements corresponding to a subset of the plurality of signals having channel gain that is greater than a remaining portion of the plurality of signals. Aspects of a method may comprise determining a plurality of channel measurements corresponding to a plurality of signals, and computing a plurality of channel capacities based on said channel measurements corresponding to a subset of the plurality of signals having a channel gain that is greater than a remaining portion of the plurality of signals.

摘要翻译： 提出了一种用于多用户MIMO下行链路传输中的用户选择的范围缩减方案的方法和系统的各个方面。 用于范围缩小的系统的方面可以包括范围缩小处理器，其确定对应于多个信号的多个信道测量。 范围缩小处理器可以基于与具有大于多个信号的剩余部分的信道增益的多个信号的子集相对应的信道测量来计算多个信道容量。 方法的方面可以包括：确定对应于多个信号的多个信道测量，以及基于与多个信号的子集相对应的所述信道测量来计算多个信道容量，该信道测量具有大于剩余的信道增益的信道增益 部分信号。

公开(公告)号：US20050075081A1

公开(公告)日：2005-04-07

申请号：US10957398

申请日：2004-10-01

申请人： Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Rooyen ,  Jack Winters

发明人： Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Rooyen ,  Jack Winters

IPC分类号： H04B1/707 ,  H04B7/06 ,  H04B7/08 ,  H04L1/06 ,  H04B1/44

CPC分类号： H04B7/0874 ,  H04B1/7115 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0697 ,  H04B7/0808 ,  H04B7/0814 ,  H04L1/0618

摘要： Systems and methods that provide antenna selection in multi-antenna-element communication systems are provided. In one embodiment, a system that selects N antenna elements in an M-antenna-element transmitter or an M-antenna-element receiver, in which N is less than M, may include, for example, M antenna elements in the M-antenna-element transmitter or the M-antenna-element receiver; N RF chains; and a switch coupled to the N RF chains. The M-antenna-element receiver may determine a bit error rate for each possible N antenna element subset of the M antenna elements. The M-antenna-element receiver may determine the particular N antenna element subset with a lowest bit error rate. In response to the determination of the particular N antenna element subset with the lowest bit error rate, the switch may couple the N RF chains to the particular N antenna element subset with the lowest bit error rate.

摘要翻译： 提供了在多天线单元通信系统中提供天线选择的系统和方法。 在一个实施例中，选择N小于M的M天线单元发射机或M天线单元接收机中的N个天线元素的系统可以包括例如M天线中的M个天线元件 元件发射器或M天线元件接收器; N射频链; 以及耦合到N个RF链的开关。 M天线单元接收机可以确定M个天线元件的每个可能的N个天线元素子集的误比特率。 M天线单元接收机可以以最低误码率确定特定的N个天线元件子集。 响应于具有最低误码率的特定N个天线元件子集的确定，开关可将N个RF链耦合到具有最低误码率的特定N个天线元件子集。