公开(公告)号：US20070066225A1

公开(公告)日：2007-03-22

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 Rooyen

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

IPC分类号： H04B17/00 ,  H04B7/00

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：US07839842B2

公开(公告)日：2010-11-23

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： H04W4/00 ,  H04L12/50

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其余信道增益的信道增益 部分信号。

公开(公告)号：US08284769B2

公开(公告)日：2012-10-09

申请号：US12951577

申请日：2010-11-22

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： H04W4/00

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：US20110070913A1

公开(公告)日：2011-03-24

申请号：US12951577

申请日：2010-11-22

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： H04W28/02

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：US08738053B2

公开(公告)日：2014-05-27

申请号：US11231557

申请日：2005-09-21

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

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

IPC分类号： H04B1/00 ,  H04B15/00 ,  H04B7/00 ,  H04B3/46 ,  H04B17/00 ,  H04Q1/20 ,  H04W4/00

CPC分类号： H04L25/03343 ,  H04B7/0417 ,  H04B7/0439 ,  H04B7/0443 ,  H04B7/0452 ,  H04B7/0626 ,  H04B17/309 ,  H04L2025/03426 ,  H04L2025/03605

摘要： Various aspects of a method and a system for finding a threshold for semi-orthogonal user group selection in multiuser MIMO downlink transmission are presented. Aspects of a system for semi-orthogonal user group selection may include a processor that computes an orthogonality measurement between one of a plurality of signals and at least one of a remaining portion of the plurality of signals. The processor may compare each of the orthogonality measurements to a threshold orthogonality value based on a computed probability. The processor may select a user group, based on the threshold orthogonality value, including one of the plurality of signals and one or more signals selected from the remaining portion of the plurality of signals.

摘要翻译： 提出了一种用于在多用户MIMO下行链路传输中找到用于半正交用户组选择的阈值的方法和系统的各个方面。 用于半正交用户组选择的系统的方面可以包括计算多个信号中的一个信号与多个信号的剩余部分中的至少一个之间的正交性测量的处理器。 处理器可以基于所计算的概率将每个正交性测量值与阈值正交性值进行比较。 处理器可以基于包括多个信号中的一个和从多个信号的剩余部分中选择的一个或多个信号的阈值正交性值来选择用户组。

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：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：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：US08121567B2

公开(公告)日：2012-02-21

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： 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：US20070066229A1

公开(公告)日：2007-03-22

申请号：US11231557

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 ,  H04B1/02 ,  H04B7/02

CPC分类号： H04L25/03343 ,  H04B7/0417 ,  H04B7/0439 ,  H04B7/0443 ,  H04B7/0452 ,  H04B7/0626 ,  H04B17/309 ,  H04L2025/03426 ,  H04L2025/03605

摘要： Various aspects of a method and a system for finding a threshold for semi-orthogonal user group selection in multiuser MIMO downlink transmission are presented. Aspects of a system for semi-orthogonal user group selection may include a processor that computes an orthogonality measurement between one of a plurality of signals and at least one of a remaining portion of the plurality of signals. The processor may compare each of the orthogonality measurements to a threshold orthogonality value based on a computed probability. The processor may select a user group, based on the threshold orthogonality value, including one of the plurality of signals and one or more signals selected from the remaining portion of the plurality of signals.

摘要翻译： 提出了一种用于在多用户MIMO下行链路传输中找到用于半正交用户组选择的阈值的方法和系统的各个方面。 用于半正交用户组选择的系统的方面可以包括计算多个信号中的一个信号与多个信号的剩余部分中的至少一个之间的正交性测量的处理器。 处理器可以基于所计算的概率将每个正交性测量值与阈值正交性值进行比较。 处理器可以基于包括多个信号中的一个和从多个信号的剩余部分中选择的一个或多个信号的阈值正交性值来选择用户组。