公开(公告)号：US20070253386A1

公开(公告)日：2007-11-01

申请号：US11617549

申请日：2006-12-28

申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

IPC分类号： H04Q7/24

CPC分类号： H04L1/0026 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0029

摘要： Methods and apparatuses for reducing an amount of bandwidth required for feedback to a transmitter station in a closed-loop multiple-input multiple-output (MIMO) system are described herein. The methods may include initially measuring at a receiver station channel qualities associated with receiving signals from a transmitter station for a first and a second spatial channel, the transmitter and receiver stations employing a closed-loop MIMO system. The receiver station may then determine a first and a second channel quality indicator (CQI) based on the measured channel qualities and may then transmit to the transmitter station the first and the second CQI to directly and indirectly identify a first and a second modulation coding scheme (MCS) entry among a plurality of ordered MCS entries, respectively. The second MCS entry being one of a selected subset of lower ordered MCS entries relative to the first MCS entry. The transmitter station may selectively use the first and the second identified MCS to transmit signals to the receiver station over the first and the second spatial channel, respectively.

摘要翻译： 这里描述了用于减少在闭环多输入多输出（MIMO）系统中向发射机站反馈所需的带宽量的方法和装置。 这些方法可以包括最初在接收机站处测量与从发射机站接收针对第一和第二空间信道的信号相关联的信道质量，所述发射机和接收机站采用闭环MIMO系统。 然后，接收站可以基于所测量的信道质量来确定第一和第二信道质量指示符（CQI），然后可以向发射机站发送第一和第二CQI以直接和间接地识别第一和第二调制编码方案 （MCS）条目分别在多个有序的MCS条目中。 第二MCS条目是相对于第一MCS条目的低阶MCS条目的选定子集之一。 发射机站可以选择性地使用第一和第二识别的MCS分别在第一和第二空间信道上向接收机站发送信号。

公开(公告)号：US08422583B2

公开(公告)日：2013-04-16

申请号：US13205589

申请日：2011-08-08

申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

IPC分类号： H04B7/02

CPC分类号： H04B7/0632 ,  H04B7/0641 ,  H04B7/0643 ,  H04L1/0025 ,  H04L1/0029

摘要： Methods and apparatuses for providing CQI feedback to a transmitter station are described herein. In one implementation, an apparatus may include a transceiver to transmit and receive signals to and from a transmitter station, and a controller coupled to the transceiver to control the transceiver to transmit to the transmitter station a first channel quality indicator (CQI) that corresponds to a first modulation level to be used by the transmitter station to transmit first signals, and to control the transceiver to transmit to the transmitter station a differential indicator that comprises two bits or less to differentially indicate a second CQI relative to the first CQI, wherein the second CQI corresponds to a second modulation level to be used by the transmitter station to transmit second signals. Other embodiments may be described and/or claimed.

摘要翻译： 本文描述了用于向发射机站提供CQI反馈的方法和装置。 在一个实现中，设备可以包括收发信机，用于向发射台发送信号和从发射机站接收信号，以及耦合到收发器的控制器，以控制收发信机向发射台发送对应于发射机的第一信道质量指示符（CQI） 要由发射机站用于发送第一信号的第一调制电平，并且控制收发信机向发射台发送包含两位或更少差分指示相对于第一CQI的第二CQI的差分指示符，其中， 第二CQI对应于由发射机站用于发射第二信号的第二调制电平。 可以描述和/或要求保护其他实施例。

公开(公告)号：US07751368B2

公开(公告)日：2010-07-06

申请号：US11617549

申请日：2006-12-28

申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

IPC分类号： H04W4/00 ,  H04B1/00 ,  H04B1/38 ,  H03C1/62

CPC分类号： H04L1/0026 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0029

摘要： Methods and apparatuses for reducing an amount of bandwidth required for feedback to a transmitter station in a closed-loop multiple-input multiple-output (MIMO) system are described herein. The methods may include initially measuring at a receiver station channel qualities associated with receiving signals from a transmitter station for a first and a second spatial channel, the transmitter and receiver stations employing a closed-loop MIMO system. The receiver station may then determine a first and a second channel quality indicator (CQI) based on the measured channel qualities and may then transmit to the transmitter station the first and the second CQI to directly and indirectly identify a first and a second modulation coding scheme (MCS) entry among a plurality of ordered MCS entries, respectively. The second MCS entry being one of a selected subset of lower ordered MCS entries relative to the first MCS entry. The transmitter station may selectively use the first and the second identified MCS to transmit signals to the receiver station over the first and the second spatial channel, respectively.

摘要翻译： 这里描述了用于减少在闭环多输入多输出（MIMO）系统中向发射机站反馈所需的带宽量的方法和装置。 这些方法可以包括最初在接收机站处测量与从发射机站接收针对第一和第二空间信道的信号相关联的信道质量，所述发射机和接收机站采用闭环MIMO系统。 然后，接收站可以基于所测量的信道质量来确定第一和第二信道质量指示符（CQI），然后可以向发射机站发送第一和第二CQI以直接和间接地识别第一和第二调制编码方案 （MCS）条目分别在多个有序的MCS条目中。 第二MCS条目是相对于第一MCS条目的低阶MCS条目的选定子集之一。 发射机站可以选择性地使用第一和第二识别的MCS分别在第一和第二空间信道上向接收机站发送信号。

公开(公告)号：US20110294438A1

公开(公告)日：2011-12-01

申请号：US13205589

申请日：2011-08-08

申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

IPC分类号： H04W4/00

CPC分类号： H04B7/0632 ,  H04B7/0641 ,  H04B7/0643 ,  H04L1/0025 ,  H04L1/0029

摘要： Methods and apparatuses for providing CQI feedback to a transmitter station are described herein. In one implementation, an apparatus may include a transceiver to transmit and receive signals to and from a transmitter station, and a controller coupled to the transceiver to control the transceiver to transmit to the transmitter station a first channel quality indicator (CQI) that corresponds to a first modulation level to be used by the transmitter station to transmit first signals, and to control the transceiver to transmit to the transmitter station a differential indicator that comprises two bits or less to differentially indicate a second CQI relative to the first CQI, wherein the second CQI corresponds to a second modulation level to be used by the transmitter station to transmit second signals. Other embodiments may be described and/or claimed.

摘要翻译： 本文描述了用于向发射机站提供CQI反馈的方法和装置。 在一个实现中，设备可以包括收发信机，用于向发射台发送信号和从发射机站接收信号，以及耦合到收发器的控制器，以控制收发信机向发射台发送对应于发射机的第一信道质量指示符（CQI） 要由发射机站用于发送第一信号的第一调制电平，并且控制收发信机向发射台发送包含两位或更少差分指示相对于第一CQI的第二CQI的差分指示符，其中， 第二CQI对应于由发射机站用于发射第二信号的第二调制电平。 可以描述和/或要求保护其他实施例。

公开(公告)号：US08488709B2

公开(公告)日：2013-07-16

申请号：US12871361

申请日：2010-08-30

申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

IPC分类号： H04B7/02 ,  H04B1/00

CPC分类号： H04B7/0632 ,  H04B7/0641 ,  H04B7/0643 ,  H04L1/0025 ,  H04L1/0029

摘要： Methods and apparatuses for providing CQI feedback with common code rate to a transmitter station are described herein. In one implementation, the methods may include a receiver station that is communicatively linked to a transmitter station via k spatial channels transmitting a first CQI to the transmitter station that indicates a modulation level for use by the transmitter station to transmit (i.e., to configure for transmission) a first of k streams of signals to be transmitted to the receiver station. The first CQI may further include a common code rate to be used by the transmitter station for transmitting the first of the k streams of signals as well as for transmitting the rest of the k−1 additional streams of signals to the receiver station. The receiver station may further transmit to the transmitter station k−1 additional CQIs to indicate to the transmitter station the k−1 modulation levels to be used by the transmitter station for transmitting the k−1 additional streams of signals to the receiver station.

摘要翻译： 这里描述了用于向发射机站提供具有共同码率的CQI反馈的方法和装置。 在一个实施方式中，所述方法可以包括经由k个空间信道与发射机站通信地链接到发射机站的接收机站，所述空间信道向发射机站发射指示调制电平供发射机站使用以发射（即，配置为 传输）要发送到接收站的k个信号流中的第一个。 第一CQI还可以包括由发射机站用于发射信号的第一个信号流中的第一个信号以及将其余的k-1个附加信号流发射到接收机站的公共码率。 接收机站还可以向发射机站k-1发送额外的CQI，以向发射机台发射要由发射机站用于向接收机发射k-1个附加信号流的k-1个调制等级。

公开(公告)号：US20110009076A1

公开(公告)日：2011-01-13

申请号：US12871361

申请日：2010-08-30

申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

IPC分类号： H04W28/22

CPC分类号： H04B7/0632 ,  H04B7/0641 ,  H04B7/0643 ,  H04L1/0025 ,  H04L1/0029

摘要： Methods and apparatuses for providing CQI feedback with common code rate to a transmitter station are described herein. In one implementation, the methods may include a receiver station that is communicatively linked to a transmitter station via k spatial channels transmitting a first CQI to the transmitter station that indicates a modulation level for use by the transmitter station to transmit (i.e., to configure for transmission) a first of k streams of signals to be transmitted to the receiver station. The first CQI may further include a common code rate to be used by the transmitter station for transmitting the first of the k streams of signals as well as for transmitting the rest of the k−1 additional streams of signals to the receiver station. The receiver station may further transmit to the transmitter station k−1 additional CQIs to indicate to the transmitter station the k−1 modulation levels to be used by the transmitter station for transmitting the k−1 additional streams of signals to the receiver station.

摘要翻译： 这里描述了用于向发射机站提供具有共同码率的CQI反馈的方法和装置。 在一个实施方式中，所述方法可以包括经由k个空间信道与发射机站通信地链接到发射机站的接收机站，所述空间信道向发射机站发射指示调制电平供发射机站使用以发射（即，配置为 传输）要发送到接收站的k个信号流中的第一个。 第一CQI还可以包括由发射机站用于发射信号的第一个信号流中的第一个信号以及将其余的k-1个附加信号流发射到接收机站的公共码率。 接收机站还可以向发射机站k-1发送额外的CQI，以向发射机台发射要由发射机站用于向接收机发射k-1个附加信号流的k-1个调制等级。

公开(公告)号：US07830977B2

公开(公告)日：2010-11-09

申请号：US11617586

申请日：2006-12-28

申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

IPC分类号： H04B7/02 ,  H04B1/00

CPC分类号： H04B7/0632 ,  H04B7/0641 ,  H04B7/0643 ,  H04L1/0025 ,  H04L1/0029

摘要： Methods and apparatuses for providing CQI feedback with common code rate to a transmitter station are described herein. In one implementation, the methods may include a receiver station that is communicatively linked to a transmitter station via k spatial channels transmitting a first CQI to the transmitter station that indicates a modulation level for use by the transmitter station to transmit (i.e., to configure for transmission) a first of k streams of signals to be transmitted to the receiver station. The first CQI may further include a common code rate to be used by the transmitter station for transmitting the first of the k streams of signals as well as for transmitting the rest of the k−1 additional streams of signals to the receiver station. The receiver station may further transmit to the transmitter station k−1 additional CQIs to indicate to the transmitter station the k−1 modulation levels to be used by the transmitter station for transmitting the k−1 additional streams of signals to the receiver station.

摘要翻译： 这里描述了用于向发射机站提供具有共同码率的CQI反馈的方法和装置。 在一个实施方式中，所述方法可以包括经由k个空间信道与发射机站通信地链接到发射机站的接收机站，所述空间信道向发射机站发射指示调制电平供发射机站使用以发射（即，配置为 传输）要发送到接收站的k个信号流中的第一个。 第一CQI还可以包括由发射机站用于发射信号的第一个信号流中的第一个信号以及将其余的k-1个附加信号流发射到接收机站的公共码率。 接收机站还可以向发射机站k-1发送额外的CQI，以向发射机台发射要由发射机站用于向接收机发射k-1个附加信号流的k-1个调制等级。

公开(公告)号：US20070254603A1

公开(公告)日：2007-11-01

申请号：US11617586

申请日：2006-12-28

申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

IPC分类号： H04B1/40

CPC分类号： H04B7/0632 ,  H04B7/0641 ,  H04B7/0643 ,  H04L1/0025 ,  H04L1/0029

摘要： Methods and apparatuses for providing CQI feedback with common code rate to a transmitter station are described herein. In one implementation, the methods may include a receiver station that is communicatively linked to a transmitter station via k spatial channels transmitting a first CQI to the transmitter station that indicates a modulation level for use by the transmitter station to transmit (i.e., to configure for transmission) a first of k streams of signals to be transmitted to the receiver station. The first CQI may further include a common code rate to be used by the transmitter station for transmitting the first of the k streams of signals as well as for transmitting the rest of the k−1 additional streams of signals to the receiver station. The receiver station may further transmit to the transmitter station k−1 additional CQIs to indicate to the transmitter station the k−1 modulation levels to be used by the transmitter station for transmitting the k−1 additional streams of signals to the receiver station.

摘要翻译： 这里描述了用于向发射机站提供具有共同码率的CQI反馈的方法和装置。 在一个实施方式中，所述方法可以包括经由k个空间信道与发射机站通信地链接到发射机站的接收机站，所述空间信道向发射机站发射指示调制电平供发射机站使用以发射（即，配置为 传输）要发送到接收站的k个信号流中的第一个。 第一CQI还可以包括由发射机站用于发射信号的第一个信号流中的第一个信号以及将其余的k-1个附加信号流发射到接收机站的公共码率。 接收机站还可以向发射机站k-1发送额外的CQI，以向发射机台发射要由发射机站用于向接收机发射k-1个附加信号流的k-1个调制等级。

公开(公告)号：US07778599B2

公开(公告)日：2010-08-17

申请号：US11617403

申请日：2006-12-28

申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin

发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin

IPC分类号： H04B1/00 ,  H04B7/00 ,  H04B17/00

CPC分类号： H04B7/0632 ,  H04B7/0634 ,  H04B7/0862 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028 ,  H04L1/0036 ,  H04L1/1671 ,  H04L1/1812

摘要： Embodiments of methods and apparatus for providing aggregated feedback from a subscriber station to a base station are generally described herein. Some embodiments may include a channel response predictor to predict channel responses for future feedback periods and a feedback information generator to aggregate feedback information, generated based on the predicted channel responses, into an aggregated information block that is to be transmitted to a base station. Other embodiments may be described and claimed.

摘要翻译： 这里一般地描述用于从用户站向基站提供聚合反馈的方法和装置的实施例。 一些实施例可以包括用于预测未来反馈周期的信道响应的信道响应预测器，以及反馈信息发生器，以将基于预测信道响应生成的反馈信息聚合成要发送到基站的聚合信息块。 可以描述和要求保护其他实施例。

公开(公告)号：US08874046B2

公开(公告)日：2014-10-28

申请号：US12655258

申请日：2009-12-28

申请人： Qinghua Li ,  Xintian E. Lin ,  Yuan Zhu ,  Jiacheng Wang ,  Shanshan Zheng ,  Xiaofeng Liu ,  Guangjie Li ,  Feng Zhou

发明人： Qinghua Li ,  Xintian E. Lin ,  Yuan Zhu ,  Jiacheng Wang ,  Shanshan Zheng ,  Xiaofeng Liu ,  Guangjie Li ,  Feng Zhou

IPC分类号： H04B1/00 ,  H04B7/06

CPC分类号： H04B7/0641 ,  H04B7/0478 ,  H04B7/0482 ,  H04B7/0617 ,  H04B7/0636 ,  H04B7/0639

摘要： An embodiment of the present invention provides a method used in transmit beam forming, comprising, providing differential feedback by using variable differential codebooks across a plurality of feedbacks wherein the differential codebooks may have different shapes, and/or spans, and/or the numbers of codewords across feedbacks.

摘要翻译： 本发明的一个实施例提供了一种用于发射波束形成的方法，包括：通过使用多个反馈中的可变差分码本来提供差分反馈，其中差分码本可以具有不同的形状和/或跨度，和/或 反馈码字。