公开(公告)号：US20140169415A1

公开(公告)日：2014-06-19

申请号：US13714682

申请日：2012-12-14

申请人： Karl Werner ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Andreas Nilsson ,  Mathias Riback

发明人： Karl Werner ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Andreas Nilsson ,  Mathias Riback

IPC分类号： H04B15/00 ,  H04B7/04

CPC分类号： H04B15/00 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0615 ,  H04B7/063 ,  H04B7/0639 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/444

摘要： The method and apparatus disclosed herein improve throughput conditions limited by multiplicative noise by determining precoder weights for each data stream communicated between a MIMO transmitter node and a MIMO receiver node. The precoder weights are determined based on information derived from non-precoded reference symbols to decrease the energy allocated to the dominant signal path relative to the energy allocated to the non-dominant signal paths.

摘要翻译： 本文公开的方法和装置通过确定在MIMO发射机节点和MIMO接收机节点之间传送的每个数据流的预编码器权重来改善由乘法噪声限制的吞吐量条件。 基于从非预编码参考符号导出的信息来确定预编码器权重，以相对于分配给非主导信号路径的能量来减少分配给主信号路径的能量。

公开(公告)号：US08831127B2

公开(公告)日：2014-09-09

申请号：US13714613

申请日：2012-12-14

申请人： Andreas Nilsson ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Mathias Riback ,  Karl Werner

发明人： Andreas Nilsson ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Mathias Riback ,  Karl Werner

IPC分类号： H04B7/02 ,  H04B7/04

CPC分类号： H04B7/043 ,  H04B7/0413 ,  H04B7/086

摘要： The MIMO method and apparatus disclosed herein improve throughput conditions limited by multiplicative noise by reducing the gain of the data streams associated with one or more dominant signal paths between MIMO communication nodes. As used herein, multiplicative noise refers to any noise dependent on or proportional to a signal strength at a transmitting node and/or a receiving node of a wireless communication network. An additional method and apparatus are included for determining that multiplicative noise limits the throughput conditions.

摘要翻译： 本文公开的MIMO方法和装置通过减少与MIMO通信节点之间的一个或多个主要信号路径相关联的数据流的增益来改善由乘法噪声限制的吞吐量条件。 如本文所使用的，乘法噪声是指与无线通信网络的发送节点和/或接收节点处的信号强度相关或成比例的任何噪声。 包括用于确定乘法噪声限制吞吐量条件的附加方法和装置。

公开(公告)号：US20140169490A1

公开(公告)日：2014-06-19

申请号：US13714646

申请日：2012-12-14

申请人： Jonas Medbo ,  Henrik Asplund ,  Mikael Coldrey ,  Andreas Nilsson ,  Mathias Riback ,  Karl Werner

发明人： Jonas Medbo ,  Henrik Asplund ,  Mikael Coldrey ,  Andreas Nilsson ,  Mathias Riback ,  Karl Werner

IPC分类号： H04W52/24

CPC分类号： H04W52/241 ,  H04B7/0443 ,  H04W52/247 ,  H04W52/248 ,  H04W52/346 ,  H04W52/42

摘要： Throughput conditions limited by multiplicative noise may be improved by distributing a transmission power across MIMO data streams communicated between MIMO communication nodes. In particular, the transmission power is distributed based on knowledge at the transmitter of the MIMO channel to decrease the transmission power allocated to one or more of the data streams associated with a dominant signal path relative to the transmission power allocated to one or more data streams associated with a weaker signal path to increase at least one of a quality and a throughput condition of the MIMO channel.

摘要翻译： 可以通过在MIMO通信节点之间传送的MIMO数据流之间分配发射功率来改善由乘法噪声限制的吞吐量条件。 具体地，基于MIMO信道的发射机处的知识来分发发送功率，以相对于分配给一个或多个数据流的发送功率来降低分配给与主要信号路径相关联的一个或多个数据流的发送功率 与较弱的信号路径相关联以增加MIMO信道的质量和吞吐量条件中的至少一个。

公开(公告)号：US20140169430A1

公开(公告)日：2014-06-19

申请号：US13714613

申请日：2012-12-14

申请人： Andreas Nilsson ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Mathias Riback ,  Karl Werner

发明人： Andreas Nilsson ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Mathias Riback ,  Karl Werner

IPC分类号： H04B7/04

CPC分类号： H04B7/043 ,  H04B7/0413 ,  H04B7/086

摘要： The MIMO method and apparatus disclosed herein improve throughput conditions limited by multiplicative noise by reducing the gain of the data streams associated with one or more dominant signal paths between MIMO communication nodes. As used herein, multiplicative noise refers to any noise dependent on or proportional to a signal strength at a transmitting node and/or a receiving node of a wireless communication network. An additional method and apparatus are included for determining that multiplicative noise limits the throughput conditions.

摘要翻译： 本文公开的MIMO方法和装置通过减少与MIMO通信节点之间的一个或多个主要信号路径相关联的数据流的增益来改善由乘法噪声限制的吞吐量条件。 如本文所使用的，乘法噪声是指与无线通信网络的发送节点和/或接收节点处的信号强度相关或成比例的任何噪声。 包括用于确定乘法噪声限制吞吐量条件的附加方法和装置。

公开(公告)号：US08891657B2

公开(公告)日：2014-11-18

申请号：US13714646

申请日：2012-12-14

申请人： Jonas Medbo ,  Henrik Asplund ,  Mikael Coldrey ,  Andreas Nilsson ,  Mathias Riback ,  Karl Werner

发明人： Jonas Medbo ,  Henrik Asplund ,  Mikael Coldrey ,  Andreas Nilsson ,  Mathias Riback ,  Karl Werner

IPC分类号： H04L1/02 ,  H04W52/34 ,  H04W52/24 ,  H04B7/04 ,  H04W52/42

CPC分类号： H04W52/241 ,  H04B7/0443 ,  H04W52/247 ,  H04W52/248 ,  H04W52/346 ,  H04W52/42

摘要： Throughput conditions limited by multiplicative noise may be improved by distributing a transmission power across MIMO data streams communicated between MIMO communication nodes. In particular, the transmission power is distributed based on knowledge at the transmitter of the MIMO channel to decrease the transmission power allocated to one or more of the data streams associated with a dominant signal path relative to the transmission power allocated to one or more data streams associated with a weaker signal path to increase at least one of a quality and a throughput condition of the MIMO channel.

摘要翻译： 可以通过在MIMO通信节点之间传送的MIMO数据流之间分配发射功率来改善由乘法噪声限制的吞吐量条件。 具体地，基于MIMO信道的发射机处的知识来分发发送功率，以相对于分配给一个或多个数据流的发送功率来降低分配给与主要信号路径相关联的一个或多个数据流的发送功率 与较弱的信号路径相关联以增加MIMO信道的质量和吞吐量条件中的至少一个。

公开(公告)号：US08842764B2

公开(公告)日：2014-09-23

申请号：US13714682

申请日：2012-12-14

申请人： Karl Werner ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Andreas Nilsson ,  Mathias Riback

发明人： Karl Werner ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Andreas Nilsson ,  Mathias Riback

IPC分类号： H04B7/02 ,  H04B7/04 ,  H04B7/06 ,  H04B15/00

CPC分类号： H04B15/00 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0615 ,  H04B7/063 ,  H04B7/0639 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/444

摘要： The method and apparatus disclosed herein improve throughput conditions limited by multiplicative noise by determining precoder weights for each data stream communicated between a MIMO transmitter node and a MIMO receiver node. The precoder weights are determined based on information derived from non-precoded reference symbols to decrease the energy allocated to the dominant signal path relative to the energy allocated to the non-dominant signal paths.

摘要翻译： 本文公开的方法和装置通过确定在MIMO发射机节点和MIMO接收机节点之间传送的每个数据流的预编码器权重来改善由乘法噪声限制的吞吐量条件。 基于从非预编码参考符号导出的信息来确定预编码器权重，以相对于分配给非主导信号路径的能量来减少分配给主信号路径的能量。

公开(公告)号：US20100190456A1

公开(公告)日：2010-07-29

申请号：US12665567

申请日：2007-06-21

申请人： Henrik Asplund ,  Jonas Medbo ,  Mathias Riback

发明人： Henrik Asplund ,  Jonas Medbo ,  Mathias Riback

IPC分类号： H03C1/52

CPC分类号： H04B17/12 ,  H04B7/0613 ,  H04B17/103

摘要： The present invention relates to a method for adapting transmission parameters in a transmitter Tx in communication with at least one antenna 27; 38; 47; 57; 77, 88. The method comprises: transmitting a signal from the transmitter Tx measuring at least one reflection coefficient S11 of said signal for each antenna 27; 38; 47; 57; 77, 88, and adapting the transmission parameters based on the measured reflection coefficient S11. The antenna could be a transmit antenna and/or a receive antenna. In a preferred embodiment antenna calibration may be performed by measuring propagation time for each individual transmitter chain 481, 482; 781, 782, and compensate for differences in time delay between the individual transmitter chains 481, 482; 781, 782 to assure that the signal is transmitted simultaneously from all transmit antennas.

摘要翻译： 本发明涉及一种适配与至少一个天线27通信的发射机Tx中的传输参数的方法; 38; 47; 57; 该方法包括：从发射机Tx传输测量每个天线27的所述信号的至少一个反射系数S11的信号; 38; 47; 57; 基于所测量的反射系数S11来调整传输参数。 天线可以是发射天线和/或接收天线。 在优选实施例中，天线校准可以通过测量每个单独的发射机链481,482的传播时间来执行; 781,782，并且补偿各个发射机链481,482之间的时间延迟的差异; 781,782以确保信号从所有发射天线同时传输。

公开(公告)号：US08548399B2

公开(公告)日：2013-10-01

申请号：US12665567

申请日：2007-06-21

申请人： Henrik Asplund ,  Jonas Medbo ,  Mathias Riback

发明人： Henrik Asplund ,  Jonas Medbo ,  Mathias Riback

IPC分类号： H03C1/52

CPC分类号： H04B17/12 ,  H04B7/0613 ,  H04B17/103

摘要： The present invention relates to a method for adapting transmission parameters in a transmitter Tx in communication with at least one antenna 27; 38; 47; 57; 77, 88. The method comprises: transmitting a signal from the transmitter Tx measuring at least one reflection coefficient S11 of said signal for each antenna 27; 38; 47; 57; 77, 88, and adapting the transmission parameters based on the measured reflection coefficient S11. The antenna could be a transmit antenna and/or a receive antenna. In a preferred embodiment antenna calibration may be performed by measuring propagation time for each individual transmitter chain 481, 482; 781, 782, and compensate for differences in time delay between the individual transmitter chains 481, 482; 781, 782 to assure that the signal is transmitted simultaneously from all transmit antennas.

摘要翻译： 本发明涉及一种适配与至少一个天线27通信的发射机Tx中的传输参数的方法; 38; 47; 57; 该方法包括：从发射机Tx传输测量每个天线27的所述信号的至少一个反射系数S11的信号; 38; 47; 57; 基于所测量的反射系数S11来调整传输参数。 天线可以是发射天线和/或接收天线。 在优选实施例中，天线校准可以通过测量每个单独的发射机链481,482的传播时间来执行; 781,782，并且补偿各个发射机链481,482之间的时间延迟的差异; 781,782以确保信号从所有发射天线同时传输。

公开(公告)号：US08494588B2

公开(公告)日：2013-07-23

申请号：US12667817

申请日：2007-06-06

申请人： Jonas Medbo ,  Mathias Riback ,  Jan-Erik Berg

发明人： Jonas Medbo ,  Mathias Riback ,  Jan-Erik Berg

IPC分类号： H04B7/00 ,  H04B1/00 ,  H04M1/00

CPC分类号： H04B7/0617

摘要： The present invention relates to a method of improving the performance of a mobile radio communications system comprising at least one stationary radio transmitter for communicating with user equipments in the communications system, wherein the radio transmitter is connected to an antenna system for which the antenna pattern can be varied, the method comprising: receiving direction-of-propagation information relating to a plurality of user equipment transmission samples; selecting, based on the direction-of-propagation information, active directions for the communication of common channels from the radio transceiver; and adjusting the antenna pattern used for communication of common channels in accordance with the selected active directions in a manner so that the gain of at least one direction which has not been selected as active is lower than the gain of the selected active directions.

摘要翻译： 本发明涉及一种提高移动无线电通信系统性能的方法，包括至少一个固定无线电发射机，用于与通信系统中的用户设备进行通信，其中无线电发射机连接到天线系统，天线方向图可以 所述方法包括：接收与多个用户设备传输样本有关的传播方向信息; 基于所述传播方向信息来选择用于从所述无线电收发机通信公共信道的活动方向; 以及根据所选择的有效方向调整用于公共信道通信的天线方向，使得至少一个方向的增益低于所选择的有效方向的增益。

公开(公告)号：US20100298015A1

公开(公告)日：2010-11-25

申请号：US12667817

申请日：2007-06-06

申请人： Jonas Medbo ,  Mathias Riback ,  Jan-Erik Berg

发明人： Jonas Medbo ,  Mathias Riback ,  Jan-Erik Berg

IPC分类号： H04B15/00 ,  H04B7/00

CPC分类号： H04B7/0617

摘要： The present invention relates to a method of improving the performance of a mobile radio communications system comprising at least one stationary radio transmitter for communicating with user equipments in the communications system, wherein the radio transmitter is connected to an antenna system for which the antenna pattern can be varied, the method comprising: receiving direction-of-propagation information relating to a plurality of user equipment transmission samples, wherein a user equipment transmission sample includes information relating to at least one direction of propagation by which successful communication between a user equipment and the radio transmitter has been established at a particular point in time; selecting (303), based on the direction-of-propagation information, active directions for the communication of common channels from the radio transceiver; and adjusting (305) the antenna pattern used for communication of common channels in accordance with the selected active directions in a manner so that the gain of at least one direction which has not been selected as active is lower than the gain of the selected active directions.

摘要翻译： 本发明涉及一种提高移动无线电通信系统性能的方法，包括至少一个固定无线电发射机，用于与通信系统中的用户设备进行通信，其中无线电发射机连接到天线系统，天线方向图可以 所述方法包括：接收与多个用户设备传输样本有关的传播方向信息，其中用户设备传输样本包括与至少一个传播方向有关的信息，通过该传播方向，用户设备和 无线电发射机已在特定时间点建立; 基于所述传播方向信息来选择（303）从所述无线电收发机通信公共信道的活动方向; 以及根据所选择的有效方向调整（305）用于公共信道通信的天线方向图，使得未被选择为有效的至少一个方向的增益低于所选择的有效方向的增益 。