-
公开(公告)号：US20120027117A1
公开(公告)日：2012-02-02
申请号：US13194083
申请日：2011-07-29
CPC分类号： H04B7/0617 , H04B7/0626 , H04B7/0632
摘要： Beamforming systems and methods are disclosed. In accordance with one method, indications of channel matrices for a plurality of receivers are obtained. Further, a beamformer matrix is formulated as a linear combination of columns of hermitians of the channel matrices. In addition, coefficients of the hermitians in the linear combination are determined to compute the beamformer matrix such that a lowest reception rate among reception rates of each of the receivers is maximized. Data signals are transmitted to the receivers by applying the computed beamformer matrix to data symbols to maximize the lowest reception rate.
摘要翻译： 公开了波束形成系统和方法。 根据一种方法，获得用于多个接收机的信道矩阵的指示。 此外，波束形成矩阵被公式化为信道矩阵的隐式列的列的线性组合。 此外，确定线性组合中的隐士的系数以计算波束形成矩阵，使得每个接收机的接收速率中的最低接收速率最大化。 通过将计算的波束形成矩阵应用于数据符号来将数据信号发送到接收机，以最大化最低的接收速率。
-
公开(公告)号：US08520764B2
公开(公告)日：2013-08-27
申请号：US13194083
申请日：2011-07-29
IPC分类号： H04L27/00
CPC分类号： H04B7/0617 , H04B7/0626 , H04B7/0632
摘要： Beamforming systems and methods are disclosed. In accordance with one method, indications of channel matrices for a plurality of receivers are obtained. Further, a beamformer matrix is formulated as a linear combination of columns of hermitians of the channel matrices. In addition, coefficients of the hermitians in the linear combination are determined to compute the beamformer matrix such that a lowest reception rate among reception rates of each of the receivers is maximized. Data signals are transmitted to the receivers by applying the computed beamformer matrix to data symbols to maximize the lowest reception rate.
摘要翻译： 公开了波束形成系统和方法。 根据一种方法，获得用于多个接收机的信道矩阵的指示。 此外，波束形成矩阵被公式化为信道矩阵的隐式列的列的线性组合。 此外，确定线性组合中的隐士的系数以计算波束形成矩阵，使得每个接收机的接收速率中的最低接收速率最大化。 通过将计算的波束形成矩阵应用于数据符号来将数据信号发送到接收机，以最大化最低的接收速率。
-
3.发明授权MU-MIMO-OFDMA methods and systems for signaling multi-rank CQIs and precoders 有权MU-MIMO-OFDMA方法和用于信令多级CQI和预编码器的系统公开(公告)号：US08644180B2
公开(公告)日：2014-02-04
申请号：US13080403
申请日：2011-04-05
CPC分类号： H04W24/08 , H04B7/0452 , H04B7/0465 , H04B7/0486 , H04W52/346 , H04W72/0406 , H04W72/085
摘要： Methods and systems for determining attributes of communication channels of MU-MIMO users in an OFDMA system are disclosed. One method includes receiving from a base station, for at least one sub-band of contiguous sub-carriers, an indication of an estimate of or an upper-bound on a total number of streams that are co-scheduled by the base station on the at least one sub-band and an indication of a fraction of a transmit power at the base station that is applied to streams that are scheduled for transmission to a particular user. The method further includes determining one or more signal quality measures for the at least one sub-band based on at least one of the fraction or the estimate of or the upper-bound on the total number of streams that are scheduled by the base station on the at least one sub-band. In addition, an indication of the one or more signal quality measures is transmitted to the base station in the method.
摘要翻译： 公开了一种用于确定OFDMA系统中MU-MIMO用户的通信信道属性的方法和系统。 一种方法包括从基站接收对于连续子载波的至少一个子带，对由基站在...上共同调度的流的总数的估计或上限的指示 至少一个子带和基站处的发送功率的一小部分的指示，其被应用于被调度用于传输到特定用户的流。 该方法还包括基于由基站对其进行调度的流的总数的分数或估计或上限中的至少一个来确定至少一个子带的一个或多个信号质量度量 该至少一个子带。 此外，在该方法中向基站发送一个或多个信号质量测量的指示。
-
公开(公告)号：US08599951B2
公开(公告)日：2013-12-03
申请号：US13115162
申请日：2011-05-25
摘要： Systems and methods for conveying wireless transmission allocation information are disclosed. In accordance with one method, an index indicating selected data stream parameters is received. In addition, an indication of a number of transmit antennas at a transmitter from which the data stream is transmitted is also received. Further, the selected parameters are determined from the index based on the number of transmit antennas at the transmitter. Moreover, data signals are received and processed with a processor in accordance with the selected data stream parameters.
-
5.发明申请Method for a Canceling Self Interference Signal Using Active Noise Cancellation in RF Circuits and Transmission Lines for Full Duplex Simultaneous (In Time) and Overlapping (In Space) Wireless Transmission & Reception on the Same Frequency band 审中-公开用于在RF电路和传输线中使用主动噪声消除以同时（时间）和重叠（空间）的同时频带上的无线传输和接收的消除自干扰信号的方法公开(公告)号：US20120147790A1
公开(公告)日：2012-06-14
申请号：US13324981
申请日：2011-12-13
CPC分类号： H01Q3/2605 , H01Q21/00 , H04B1/525 , H04B7/0413 , H04B7/10
摘要： A method for full duplex communication includes creating a canceling self interference signal using active noise cancelation in RF circuits and transmission lines with a plurality of receive antennas being used and a signal received by the antennas are destructively combined in the transmission lines and passive RF components, and attaining full-duplex simultaneous in time and overlapping in space wireless transmission and reception on same frequency band responsive to the step of creating a canceling self interference signal.
摘要翻译： 一种用于全双工通信的方法包括使用RF电路中的有源噪声消除和使用多个接收天线的传输线创建消除自干扰信号，并且由天线接收的信号在传输线和无源RF分量中被破坏性地组合， 并且响应于创建消除自身干扰信号的步骤，在同一频带上的空间无线发送和接收中实现全时同时并重叠。
-
公开(公告)号：US20110255582A1
公开(公告)日：2011-10-20
申请号：US13088955
申请日：2011-04-18
CPC分类号： H04B7/0452 , H04J11/0046 , H04L5/0023 , H04L25/03331 , H04L27/0008 , H04L27/0012 , H04L27/34 , H04W72/042 , H04W72/12
摘要： Systems, methods and apparatuses for jointly demodulating data signals are disclosed. In accordance with the method, pilot signals are received from a base station and are processed. In addition, from a set of expected co-scheduled data streams, a subset of the co-scheduled data streams that are actually transmitted by the base station are determined based on the pilot signals. Further, a group of the transmitted co-scheduled data streams are selected from the determined subset. The data signals are received and jointly demodulated by employing the selected group of co-scheduled data streams and by suppressing non-selected data streams from the determined subset.
摘要翻译： 公开了用于联合解调数据信号的系统，方法和装置。 根据该方法，从基站接收导频信号并进行处理。 另外，从一组期望的共同调度数据流中，基于导频信号确定由基站实际发送的协同调度数据流的子集。 此外，从确定的子集中选择一组发送的协调调度数据流。 通过采用所选择的协同调度数据流组并通过从所确定的子集抑制未选择的数据流来接收和联合地解调数据信号。
-
7.发明申请MU-MIMO-OFDMA METHODS AND SYSTEMS FOR SIGNALING MULTI-RANK CQIs AND PRECODERS 有权MU-MIMO-OFDMA方法和用于信令多个RANK CQI和PRECODERS的系统公开(公告)号：US20110243018A1
公开(公告)日：2011-10-06
申请号：US13080403
申请日：2011-04-05
IPC分类号： H04L12/26
CPC分类号： H04W24/08 , H04B7/0452 , H04B7/0465 , H04B7/0486 , H04W52/346 , H04W72/0406 , H04W72/085
摘要： Methods and systems for determining attributes of communication channels of MU-MIMO users in an OFDMA system are disclosed. One method includes receiving from a base station, for at least one sub-band of contiguous sub-carriers, an indication of an estimate of or an upper-bound on a total number of streams that are co-scheduled by the base station on the at least one sub-band and an indication of a fraction of a transmit power at the base station that is applied to streams that are scheduled for transmission to a particular user. The method further includes determining one or more signal quality measures for the at least one sub-band based on at least one of the fraction or the estimate of or the upper-bound on the total number of streams that are scheduled by the base station on the at least one sub-band. In addition, an indication of the one or more signal quality measures is transmitted to the base station in the method.
摘要翻译： 公开了一种用于确定OFDMA系统中MU-MIMO用户的通信信道属性的方法和系统。 一种方法包括从基站接收对于连续子载波的至少一个子带，对由基站在...上共同调度的流的总数的估计或上限的指示 至少一个子带和在基站处的发送功率的一小部分的指示，其被应用于被调度用于传输到特定用户的流。 该方法还包括基于由基站对其进行调度的流的总数的分数或估计或上限中的至少一个来确定至少一个子带的一个或多个信号质量度量 该至少一个子带。 此外，在该方法中向基站发送一个或多个信号质量测量的指示。
-
公开(公告)号：US20110103501A1
公开(公告)日：2011-05-05
申请号：US12940777
申请日：2010-11-05
IPC分类号： H04L27/28
CPC分类号： H04L27/28 , H04L5/0051 , H04L5/0053 , H04L5/0094 , H04L27/30
摘要： Methods and systems for indexing signal option selections are disclosed. The signal options can be any of a variety of options that permit the establishment of a communication link, including modulation format, coding rate, precoding index and assigned subbands. The selected options can be represented as a vector and the index can be determined by employing a worth function for a particular selected vector element that is dependent on a selection occurrence count of the element and on an element position count of the element. In particular, the index can be the summation of worth function values for each selected element.
摘要翻译： 公开了索引信号选项选择的方法和系统。 信号选项可以是允许建立通信链路的各种选项中的任一种，包括调制格式，编码率，预编码索引和分配的子带。 所选择的选项可以被表示为向量，并且可以通过对依赖于元素的选择发生次数和元素的元素位置计数的特定选定向量元素采用值函数来确定索引。 特别地，索引可以是每个选定元素的值函数值的总和。
-
9.发明授权公开(公告)号：US08798011B2
公开(公告)日：2014-08-05
申请号：US13456881
申请日：2012-04-26
IPC分类号： H04B7/216
CPC分类号： H04W24/10 , H04B7/0417 , H04B7/0452 , H04B7/0469 , H04B7/0486 , H04B7/0626 , H04B7/063 , H04B7/065
摘要： A method implemented in a user equipment configured to be used in a multi-user (MU) multiple-input multiple-output (MIMO) wireless communications system is disclosed. In an aspect, the user equipment transmits to a base station a first channel state information (CSI) report determined according to a single-user (SU) MIMO rule and a second CSI report determined according to an MU-MIMO rule.
摘要翻译： 公开了一种在配置成在多用户（MU）多输入多输出（MIMO）无线通信系统中使用的用户设备中实现的方法。 一方面，用户设备向基站发送根据单用户（SU）MIMO规则确定的第一信道状态信息（CSI）报告和根据MU-MIMO规则确定的第二CSI报告。
-
公开(公告)号：US08718156B2
公开(公告)日：2014-05-06
申请号：US12940777
申请日：2010-11-05
CPC分类号： H04L27/28 , H04L5/0051 , H04L5/0053 , H04L5/0094 , H04L27/30
摘要： Methods and systems for indexing signal option selections are disclosed. The signal options can be any of a variety of options that permit the establishment of a communication link, including modulation format, coding rate, precoding index and assigned subbands. The selected options can be represented as a vector and the index can be determined by employing a worth function for a particular selected vector element that is dependent on a selection occurrence count of the element and on an element position count of the element. In particular, the index can be the summation of worth function values for each selected element.
摘要翻译： 公开了索引信号选项选择的方法和系统。 信号选项可以是允许建立通信链路的各种选项中的任一种，包括调制格式，编码率，预编码索引和分配的子带。 所选择的选项可以被表示为向量，并且可以通过对依赖于元素的选择发生次数和元素的元素位置计数的特定选定向量元素采用值函数来确定索引。 特别地，索引可以是每个选定元素的值函数值的总和。
-
-
-
-
-
-
-
-
-
搜索结果
180 条记录 (耗时 0.027 秒)
