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    • 51. 发明授权
    • Method and system for best-M CQI feedback together with PMI feedback
    • 最佳M CQI反馈与PMI反馈的方法和系统
    • US08761790B2
    • 2014-06-24
    • US13442297
    • 2012-04-09
    • Mark KentVinko ErcegJun Zheng
    • Mark KentVinko ErcegJun Zheng
    • H04W72/00
    • H04L1/0026H04B7/0632H04B7/0639H04L1/0029
    • Aspects of a method and system for best-M CQI feedback together with PMI feedback may include generating a plurality of feedback messages, which may be communicated from a mobile station to a base station, wherein at least one of the generated plurality of feedback messages may be associated with each corresponding selected one of a plurality of Channel Quality Indicator (CQI) reporting units. The at least one of the generated feedback messages may comprise CQI information and Pre-coding Matrix Index (PMI) information, which may both be associated with the selected one of the plurality of CQI reporting units. At least one other of the generated plurality of feedback messages may comprise an aggregate CQI information, which is based on one or more of the plurality of CQI reporting units.
    • 用于最佳M CQI反馈的方法和系统以及PMI反馈的方面可以包括生成可以从移动台传送到基站的多个反馈消息,其中所生成的多个反馈消息中的至少一个可以 与多个信道质量指示符(CQI)报告单元中的每个相应选择的一个相关联。 所生成的反馈消息中的至少一个可以包括CQI信息和预编码矩阵索引(PMI)信息,其可以都与多个CQI报告单元中的所选择的一个相关联。 所生成的多个反馈消息中的至少另一个可以包括基于多个CQI报告单元中的一个或多个的聚合CQI信息。
    • 52. 发明授权
    • System and method for distortion compensation including configureable delay
    • 用于失真补偿的系统和方法,包括可配置延迟
    • US08670675B2
    • 2014-03-11
    • US12976136
    • 2010-12-22
    • Jun ZhengYi Wang
    • Jun ZhengYi Wang
    • H04B10/04
    • H04B10/2575H04B10/58
    • A distortion compensation circuit including a configurable delay may be used with one or more non-linear elements, such as a laser, to compensate for distortion generated by the non-linear element(s), for example, in broadband RF applications. Embodiments of the distortion compensation circuit may include a primary signal path with a configurable delay segment and a secondary signal path including at least one distortion generator. The configurable delay segment may be selectively configured to provide different delay settings to accommodate different RF loading conditions such that the delayed RF signal on the primary signal path is aligned with the distortion products generated on the secondary signal path when combined to form an RF signal with distortion compensation.
    • 包括可配置延迟的失真补偿电路可以与诸如激光器的一个或多个非线性元件一起使用,以补偿例如在宽带RF应用中由非线性元件产生的失真。 失真补偿电路的实施例可以包括具有可配置延迟段的主信号路径和包括至少一个失真发生器的辅助信号路径。 可配置延迟段可以被选择性地配置为提供不同的延迟设置以适应不同的RF负载条件,使得主信号路径上的延迟的RF信号与副信号路径上产生的失真乘积对准,以形成RF信号, 失真补偿。
    • 53. 发明授权
    • System and method for distortion compensation in response to frequency detection
    • 响应频率检测的失真补偿的系统和方法
    • US08606116B2
    • 2013-12-10
    • US13005820
    • 2011-01-13
    • Jun ZhengYi WangChuan Peng
    • Jun ZhengYi WangChuan Peng
    • H04B10/00
    • H04B10/58H04B10/2575
    • A distortion compensation circuit with frequency detection may be used with one or more non-linear elements, such as a laser, to compensate for frequency-dependent distortion generated by the non-linear element(s), for example, in broadband multichannel RF applications. Embodiments of the distortion compensation circuit may include a frequency detector circuit that detects changes in frequency loading conditions in the distortion compensation circuit such that distortion compensation may be adjusted to compensate for distortion under different frequency loading conditions. In a multichannel RF system with multiple channel operation modes, for example, the frequency detector circuit may detect changes in the frequency loading condition as a result of changing operation modes.
    • 具有频率检测的失真补偿电路可以与一个或多个非线性元件(例如激光器)一起使用,以补偿例如在宽带多通道RF应用中由非线性元件产生的与频率相关的失真 。 失真补偿电路的实施例可以包括频率检测器电路,其检测失真补偿电路中的频率负载条件的变化,使得可以调整失真补偿以补偿在不同频率负载条件下的失真。 在具有多通道操作模式的多通道RF系统中,例如,频率检测器电路可以检测作为改变操作模式的结果的频率负载状态的变化。
    • 55. 发明授权
    • Method and system for a greedy user group selection with range reduction in TDD multiuser MIMO downlink transmission
    • 用于在TDD多用户MIMO下行链路传输中具有范围缩减的贪心用户组选择的方法和系统
    • US08233848B2
    • 2012-07-31
    • US13074692
    • 2011-03-29
    • Chengjin ZhangJun ZhengPieter van Rooyen
    • Chengjin ZhangJun ZhengPieter van Rooyen
    • H03C7/02H04B1/02H04B7/02
    • H04W8/005H04B7/0408
    • Certain aspects of a method and system for processing signals in a communication system may include maximizing system capacity for a time division duplex (TDD) multiuser multiple-input multiple-output (MIMO) downlink system, based on a single signal for a single user within a reduced search range or the single signal for the single user and at least one other signal for one other user within a remaining portion of the reduced search range. The reduced search range may be generated by sorting a plurality of signals based on a channel gain corresponding to each of the plurality of signals. The single signal for the single user may be selected from the reduced search range corresponding to a channel gain that is greater than a channel gain corresponding to a remaining portion of the reduced search range.
    • 用于在通信系统中处理信号的方法和系统的某些方面可以包括基于用于单个用户内的单个用户的单个信号来最大化时分双工(TDD)多用户多输入多输出(MIMO)下行链路系统的系统容量 减少的搜索范围或针对单个用户的单个信号,以及在缩小搜索范围的剩余部分内的另一个用户的至少一个其他信号。 可以通过基于与多个信号中的每个信号相对应的信道增益对多个信号进行排序来生成缩小搜索范围。 单个用户的单个信号可以从对应于大于对应于缩小的搜索范围的剩余部分的信道增益的信道增益的缩小搜索范围中选择。
    • 56. 发明授权
    • Method and system for best-M CQI feedback together with PMI feedback
    • 最佳M CQI反馈与PMI反馈的方法和系统
    • US08195184B2
    • 2012-06-05
    • US11864661
    • 2007-09-28
    • Mark KentVinko ErcegJun Zheng
    • Mark KentVinko ErcegJun Zheng
    • H04W72/00
    • H04L1/0026H04B7/0632H04B7/0639H04L1/0029
    • Aspects of a method and system for best-M CQI feedback together with PMI feedback may include generating a plurality of feedback messages, which may be communicated from a mobile station to a base station, wherein at least one of the generated plurality of feedback messages may be associated with each corresponding selected one of a plurality of Channel Quality Indicator (CQI) reporting units. The at least one of the generated feedback messages may comprise CQI information and Pre-coding Matrix Index (PMI) information, which may both be associated with the selected one of the plurality of CQI reporting units. At least one other of the generated plurality of feedback messages may comprise an aggregate CQI information, which is based on one or more of the plurality of CQI reporting units.
    • 用于最佳M CQI反馈的方法和系统以及PMI反馈的方面可以包括生成可以从移动台传送到基站的多个反馈消息,其中所生成的多个反馈消息中的至少一个可以 与多个信道质量指示符(CQI)报告单元中的每个相应选择的一个相关联。 所生成的反馈消息中的至少一个可以包括CQI信息和预编码矩阵索引(PMI)信息,其可以都与多个CQI报告单元中的所选择的一个相关联。 所生成的多个反馈消息中的至少另一个可以包括基于多个CQI报告单元中的一个或多个的聚合CQI信息。
    • 57. 发明授权
    • Method and system for an alternating channel delta quantizer for MIMO pre-coders with finite rate channel state information feedback
    • 用于具有有限速率信道状态信息反馈的MIMO预编码器的交替信道增量量化器的方法和系统
    • US08090048B2
    • 2012-01-03
    • US11847647
    • 2007-08-30
    • Mark KentVinko ErcegJun ZhengUri Landau
    • Mark KentVinko ErcegJun ZhengUri Landau
    • H04L25/49
    • H04B7/0434H04B7/0417H04B7/0626H04B7/0639H04B7/0641H04B7/065H04L1/06
    • Aspects of a method and system for an alternating channel delta quantizer for MIMO pre-coders with finite rate channel state information feedback may include quantizing a change in channel state information in a MIMO pre-coding system onto a codebook using a cost function and selecting the codebook from a set of codebooks; and generating the set of codebooks from a plurality of codebooks, where each may comprise one or more unitary matrices. The channel state information may be a matrix V that may be generated using Singular Value Decomposition (SVD) and/or Geometric Mean Decomposition (GMD). The selecting of the codebooks may be enabled by alternating between the elements of the set of codebooks. The cost function f(A) may be defined by the following relationship: f ⁡ ( A ) = ( 1 N ⁢ ∑ j = 1 N ⁢  a jj  2 ) where A is a matrix of size N by N and aij is element (i,j) of matrix A.
    • 用于具有有限速率信道状态信息反馈的MIMO预编码器的交替信道增量量化器的方法和系统的方面可以包括使用成本函数量化MIMO预编码系统中的信道状态信息到码本上的选择 来自一组码本的码本; 以及从多个码本生成所述码本集合,其中每个码本可以包括一个或多个酉矩阵。 信道状态信息可以是可以使用奇异值分解(SVD)和/或几何平均分解(GMD)生成的矩阵V. 可以通过在该码本集合的元素之间交替来启用码本的选择。 成本函数f(A)可以由以下关系定义:f⁡(A)=(1NΣj = 1 Na jj her 2)其中A是大小为N的矩阵,aij为 元素(i,j)。
    • 58. 发明申请
    • Cyclic shift delay (CSD) short training field (STF) for orthogonal frequency division multiplexing (OFDM) signaling within multiple user, multiple access, and/or MIMO wireless communications
    • 用于多用户,多访问和/或MIMO无线通信中的正交频分复用(OFDM)信令的循环移位延迟(CSD)短训练场(STF)
    • US20110305178A1
    • 2011-12-15
    • US13073716
    • 2011-03-28
    • Jun ZhengVinko Erceg
    • Jun ZhengVinko Erceg
    • G08C17/00
    • H04B7/0671H04W52/16H04W52/42Y02D70/00
    • Cyclic shift delay (CSD) short training field (STF) for use within multiple user, multiple access, and/or MIMO wireless communications. Appropriately designed CSD STF is applied to communications in wireless communication systems thereby ensuring a minimized power error difference between respective portions of a packet transmitted therein. A first portion of the packet may be a short training field (STF) and a second portion of the packet may be a payload (e.g., a data portion). By applying such appropriately designed CSD STF to a packet, a wireless communication device that receives a signal corresponding to that packet need not perform extra or very significant backoff (e.g., with respect to a signal subsequent to automatic gain control (AGC) processing) thereby simplifying processing of that signal and potentially also reducing a total number of effective analog to digital converter (ADC) bits needed to represent a digitally sampled version of that signal.
    • 用于多用户,多路访问和/或MIMO无线通信的循环移位延迟(CSD)短训练场(STF)。 将适当设计的CSD STF应用于无线通信系统中的通信,从而确保其中发送的分组的各个部分之间的功率误差最小化。 分组的第一部分可以是短训练场(STF),分组的第二部分可以是有效载荷(例如,数据部分)。 通过将这种适当设计的CSD STF应用于分组,接收对应于该分组的信号的无线通信设备不需要执行额外或非常显着的退避(例如,相对于自动增益控制(AGC)处理之后的信号),从而 简化了该信号的处理,并且潜在地减少了表示该信号的数字采样版本所需的有效模/数转换器(ADC)位的总数。