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1. 发明申请

WO2014011482A1 APPARATUS AND METHOD FOR IMPROVING THE PERFORMANCE OF A LINEAR EQUALIZER WITH MULTIPLE RECEIVE ANTENNAS 审中-公开
标题翻译：用于改善具有多个接收天线的线性均衡器的性能的装置和方法
公开(公告)号：WO2014011482A1
公开(公告)日：2014-01-16
申请号：PCT/US2013/049326
申请日：2013-07-03
申请人： QUALCOMM INCORPORATED
发明人： DUA, Aditya , CHIZGI, Nate
IPC分类号： H04B7/08 , H04L25/02
CPC分类号： H04L27/01 , H04B7/0845 , H04B7/0854 , H04L25/0204
摘要： Disclosed are methods and apparatus for initializing an equalizer in a diversity receiver. The initialization includes estimating a channel impulse response (CIR) for each receiver chain of the diversity receiver; determining noise power estimates for each receiver chain based on the CIRs; and adaptively adjusting equalizer taps of each receiver chain based on the noise power estimates. The adaptive adjusting of the equalizer taps is based on scaling the CIR and covariance metrics for the receiver chain with higher noise power by a scale factor determined from the noise power estimates.
摘要翻译：公开了用于在分集接收机中初始化均衡器的方法和装置。初始化包括估计分集接收机的每个接收机链的信道脉冲响应（CIR）; 基于所述CIR确定每个接收机链的噪声功率估计; 以及基于噪声功率估计自适应地调整每个接收机链的均衡器抽头。均衡器抽头的自适应调整是基于通过从噪声功率估计确定的比例因子将具有较高噪声功率的接收器链的CIR和协方差度量缩放。

2. 发明申请

WO2014004407A2 NON-PRIMARY PILOT CHANNEL DISCOVERY FOR INTERFERENCE CANCELLATION 审中-公开
标题翻译：非主要导航信道发现干扰消除
公开(公告)号：WO2014004407A2
公开(公告)日：2014-01-03
申请号：PCT/US2013/047426
申请日：2013-06-24
申请人： QUALCOMM INCORPORATED
发明人： FARAJIDANA, Amir , DUA, Aditya , GUPTA, Abhinav , RAO, Subramanya Padubidri Nanyam
CPC分类号： H04B1/10 , H04W48/16
摘要： Methods and apparatus are described for processing a signal in a communication system. A signal may be received a user equipment, and a pilot transmission from a non-primary transmit antenna of a cell in the communication system may be detected in the signal based on metrics associated with a pilot channel. Information about the pilot channel is not signaled to the user equipment. The detected pilot transmission is used to improve receiver processing of the signal.
摘要翻译：描述了用于处理通信系统中的信号的方法和装置。信号可以被接收到用户设备，并且可以在基于与导频信道相关联的度量的信号中检测来自通信系统中的小区的非主发射天线的导频传输。有关导频信道的信息不会发送给用户设备。检测到的导频传输用于改善信号的接收机处理。

3. 发明申请

WO2012074583A1 ADAPTIVE COVARIANCE MATRIX CONDITIONING FOR A LINEAR EQUALIZER WITH RECEIVE DIVERSITY 审中-公开
标题翻译：具有接收多样性的线性均衡器的自适应协方差矩阵调整
公开(公告)号：WO2012074583A1
公开(公告)日：2012-06-07
申请号：PCT/US2011/048101
申请日：2011-08-17
申请人： QUALCOMM INCORPORATED , DUA, Aditya , XIAO, Lei , KIM, Je Woo , LU, Feng
发明人： DUA, Aditya , XIAO, Lei , KIM, Je Woo , LU, Feng
IPC分类号： H04B7/08 , H04L25/03
CPC分类号： H04B7/0885 , H04B7/0854 , H04L25/0204 , H04L25/0242 , H04L25/03292 , H04L2025/03426
摘要： A method of wireless communication with improved performance employs an equalizer receiver with multiple receive antennas. Equalizer taps for linear filters of the equalizer receiver are generated by determining a conditioned covariance matrix of a first data path and a second data path based on a first gain (g 0 ) of this first data path and a second gain (g 1 ) of the second data path. The equalizer taps of the first data path and the second data path are determined based on the conditioned covariance matrix. The first data path and the second data path are then equalized using the equalizer taps. An equalized signal is generated by combining the equalized first data path with the equalized second data path.
摘要翻译：具有改进性能的无线通信方法采用具有多个接收天线的均衡器接收机。通过基于第一数据路径的第一增益（g0）和第二数据路径的第二增益（g1）确定第一数据路径和第二数据路径的调节协方差矩阵来生成均衡器接收器的线性滤波器的均衡器抽头数据路径。基于条件协方差矩阵确定第一数据路径和第二数据路径的均衡器抽头。然后使用均衡器抽头来平衡第一数据路径和第二数据路径。通过组合均衡的第一数据路径和均衡的第二数据路径来产生均衡的信号。

4. 发明申请

WO2014014677A1 METHOD AND APPARATUS TO DYNAMICALLY SELECT UE PROCESSING CAPABILITIES BASED ON CHANNEL IMPULSE RESPONSE ESTIMATES 审中-公开
标题翻译：基于渠道冲动响应估计的动态选择UE处理能力的方法和装置
公开(公告)号：WO2014014677A1
公开(公告)日：2014-01-23
申请号：PCT/US2013/049331
申请日：2013-07-03
申请人： QUALCOMM INCORPORATED
发明人： DUA, Aditya , XIAO, Lei
IPC分类号： H04L25/02 , H04L25/03
CPC分类号： H04B1/7115 , H04L25/0216 , H04L25/03019 , H04L2025/03547 , H04L2025/0377
摘要： A method, an apparatus, and a computer program product for wireless communication are provided in connection with dynamic selection of a UE receiver. In one example, a communications device is equipped to obtain one or more channel impulse response (CIR) estimates, generate a delay spread metric value that characterizes a multipath delay spread of a channel based on the obtained one or more CIR estimates, and select a receiver option with a first power consumption value, for use by the UE, from a plurality receiver options with different optimal power consumption values, based on the generated delay spread metric value. In an aspect, a comparatively more complex receiver option may be selected when the channel is rich in multipath. In another aspect, a comparatively less complex receiver option may be selected when the channel exhibits flat fading.
摘要翻译：结合UE接收机的动态选择提供了一种用于无线通信的方法，装置和计算机程序产品。在一个示例中，通信设备被配备以获得一个或多个信道脉冲响应（CIR）估计，基于获得的一个或多个CIR估计来生成表征信道的多径延迟扩展的延迟扩展度量值，并且选择接收机选项，其具有来自具有不同最佳功耗值的多个接收机选项中的UE使用的第一功率消耗值，基于所生成的延迟扩展度量值。在一方面，当信道丰富的多路径时，可以选择比较复杂的接收机选项。在另一方面，当信道呈现平坦衰落时，可以选择相对较不复杂的接收机选项。

5. 发明申请

WO2012074845A4 APPARATUS AND METHOD FOR MITIGATION OF RECEIVE POWER IMBALANCE ON EQUALIZER PERFORMANCE 审中-公开
公开(公告)号：WO2012074845A4
公开(公告)日：2012-06-07
申请号：PCT/US2011/061894
申请日：2011-11-22
申请人： QUALCOMM INCORPORATED , DUA, Aditya , LU, Feng
发明人： DUA, Aditya , LU, Feng
IPC分类号： H04B7/08
摘要： An apparatus and method for mitigation of receive power imbalance including estimating input power levels on two diversity receive branches in a receiver; computing a power imbalance between the two diversity receive branches and determining a weaker receive branch; setting a weakRX parameter based on the weaker receive branch; computing an intercept parameter c0 for a switching curve based on the weakRX parameter; computing a threshold T based on the intercept parameter; and determining a switching decision for the receiver based on the threshold T.

6. 发明申请

WO2012068500A1 SINGLE PATH DETECTION AND EQUALIZER OPTIMIZATION 审中-公开
标题翻译：单路径检测和平均优化
公开(公告)号：WO2012068500A1
公开(公告)日：2012-05-24
申请号：PCT/US2011/061465
申请日：2011-11-18
申请人： QUALCOMM Incorporated , DUA, Aditya
发明人： DUA, Aditya
IPC分类号： H04B1/713 , H04B1/7075 , H04B1/711
CPC分类号： H04B1/70754 , H04B1/711 , H04B1/713
摘要： An algorithm to detect single path channel conditions and reduce the span (number of taps) of the equalizer in order to mitigate the performance degradation caused by noisy equalizer taps is disclosed. The algorithm provides two novel components comprising single path scenario detection and single path scenario processing or (equalizer shortening). A single path scenario is detected when the energy concentrated in a single channel impulse response tap divided by the total energy of the taps exceeds a predetermined threshold. When a single path scenario is detected, only the equalizer taps within a variable window around the equalizer tap having concentrated energy are used to filter the received signal.
摘要翻译：公开了一种用于检测单路径信道条件并减小均衡器的跨度（抽头数）以减轻由噪声均衡器抽头引起的性能下降的算法。该算法提供两个新颖的组件，包括单路径场景检测和单路径场景处理或（均衡器缩短）。当集中在单通道脉冲响应抽头除以抽头的总能量的能量超过预定阈值时，检测单路径场景。当检测到单个路径场景时，仅使用具有集中能量的均衡器抽头周围的可变窗口内的均衡器抽头来对接收到的信号进行滤波。

7. 发明申请

WO2014109792A1 APPARATUS AND METHOD FOR ITERATIVE INTERFERENCE CANCELLATION IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：无线通信网络中迭代干扰消除的装置和方法
公开(公告)号：WO2014109792A1
公开(公告)日：2014-07-17
申请号：PCT/US2013/053484
申请日：2013-08-02
申请人： QUALCOMM INCORPORATED
发明人： HSU, Chun-Hao , DUA, Aditya , YEE, Nathan Dingsai , GUPTA, Abhinav
IPC分类号： H04B1/7075 , H04B1/7107 , H04B1/7115
CPC分类号： H04L27/01 , H04B1/70754 , H04B1/7107 , H04B1/7115 , H04B2201/70722 , H04B2201/70724
摘要： One or more aspects of the disclosure provide an efficient equalization scheme capable of mitigating multi-path interference on channels with large delay spread using short-length equalizers. That is, by dividing stored samples of a signal received on the multi-path channel by time into a plurality of clusters, a short-length equalizer can be utilized in an iterative fashion on each of the clusters, thus eliminating the need for a large length equalizer while still providing improved performance over that of a Rake receiver at large delay spreads. Other aspects, embodiments, and features are also claimed and described.
摘要翻译：本公开的一个或多个方面提供了一种有效的均衡方案，其能够使用短长度均衡器来减轻具有大延迟扩展的信道上的多径干扰。也就是说，通过将多路径信道上接收到的信号的时间的样本存储为多个簇，可以在每个簇上以迭代的方式使用短长度均衡器，因此不需要大量的长度均衡器，同时在大延迟传播方面仍然提供比耙式接收机更好的性能。还要求和描述其它方面，实施例和特征。

8. 发明申请

WO2012151129A1 EQUALIZER TAP COEFFICENT DETERMINATION 审中-公开
标题翻译：均衡器系数系数确定
公开(公告)号：WO2012151129A1
公开(公告)日：2012-11-08
申请号：PCT/US2012/035565
申请日：2012-04-27
申请人： QUALCOMM INCORPORATED , ABRISHAMKAR, Farrokh , DUA, Aditya
发明人： ABRISHAMKAR, Farrokh , DUA, Aditya
IPC分类号： H04L25/03
CPC分类号： H04L25/03159
摘要： A method includes performing an operation based on transformed channel data and transformed signal data to generate a transform representation of multiple taps. The transformed channel data and the transformed signal data correspond to data received at a receiver. An inverse transform of the transform representation is determined to generate multiple taps for use at an equalizer of the receiver. At least one of the multiple taps is discarded to generate updated filter taps for the equalizer.
摘要翻译：一种方法包括基于变换的信道数据和变换的信号数据执行操作以生成多个抽头的变换表示。变换的频道数据和变换的信号数据对应于在接收机处接收的数据。确定变换表示的逆变换以产生用于在接收机的均衡器处使用的多个抽头。多个抽头中的至少一个被丢弃以生成用于均衡器的更新的滤波器抽头。

9. 发明申请

WO2012087967A1 SPEED-ADAPTIVE CHANNEL QUALITY INDICATOR (CQI) ESTIMATION 审中-公开
标题翻译：速度自适应信道质量指标（CQI）估计
公开(公告)号：WO2012087967A1
公开(公告)日：2012-06-28
申请号：PCT/US2011/065904
申请日：2011-12-19
申请人： QUALCOMM Incorporated , DUA, Aditya , LU, Feng , SETHURAMAN, Vignesh
发明人： DUA, Aditya , LU, Feng , SETHURAMAN, Vignesh
IPC分类号： H04W72/12 , H04L1/00 , H04B7/06 , H04L5/00 , H04B7/04
CPC分类号： H04W72/1231 , H04B17/327 , H04B17/345 , H04L1/0015 , H04L1/0026 , H04L1/20 , H04L25/0212 , H04L25/0224 , H04W72/1284
摘要： A method, apparatus, computer program product, and processing system for generating a channel quality indicator CQI (716) adapted according to the speed of a moving user equipment UE (534). A CQI can be generated by mapping a calculated signal-to-noise ratio SNR to a CQI value. The SNR corresponds to a signal power and a noise power of a received pilot signal. The signal power and the noise power may be generated utilizing respective infinite impulse response IIR filters (612, 614) having filter coefficients chosen in accordance with the speed at which the UE moves (608, 610). Selection of the filter coefficients can be made in accordance with a continuous function or a discontinuous function utilizing a threshold, and may utilize hysteresis.
摘要翻译：一种用于产生根据移动用户设备UE（534）的速度适配的信道质量指示符CQI（716）的方法，装置，计算机程序产品和处理系统。可以通过将计算的信噪比SNR映射到CQI值来生成CQI。 SNR对应于接收到的导频信号的信号功率和噪声功率。可以使用具有根据UE移动速度（608,610）选择的滤波器系数的相应的无限脉冲响应IIR滤波器（612,614）产生信号功率和噪声功率。可以根据使用阈值的连续函数或不连续函数来选择滤波器系数，并且可以利用滞后。

10. 发明申请

WO2012075454A1 METHOD AND APPARATUS FOR DATA AIDED CHANNEL QUALITY ESTIMATION 审中-公开
标题翻译：数据辅助信道质量估计的方法和装置
公开(公告)号：WO2012075454A1
公开(公告)日：2012-06-07
申请号：PCT/US2011/063171
申请日：2011-12-02
申请人： QUALCOMM INCORPORATED , CHO, Young Geun , DUA, Aditya , LU, Feng , MERGEN, Gokhan , RAO, Subramanya P.N. , GUPTA, Abhinav , SUBRAHMANYA,, Parvathanathan
发明人： CHO, Young Geun , DUA, Aditya , LU, Feng , MERGEN, Gokhan , RAO, Subramanya P.N. , GUPTA, Abhinav , SUBRAHMANYA,, Parvathanathan
IPC分类号： H04L1/20
CPC分类号： H04L1/20
摘要： Methods and apparatuses for data aided channel quality estimation using both pilot and data information are disclosed herein. In one exemplary aspect, a method for estimating channel quality in a wireless communication system is disclosed. The method comprises estimating a pilot noise variance based on a pilot signal received from a base station on a downlink and estimating a data noise variance based on a data signal received from the base station on the downlink. The method also comprises combining the pilot noise variance and the data noise variance to obtain a combined noise variance, and estimating the channel quality based on the combined noise variance.
摘要翻译：本文公开了使用导频和数据信息的数据辅助信道质量估计的方法和装置。在一个示例性方面，公开了一种用于估计无线通信系统中的信道质量的方法。该方法包括基于从下行链路上的基站接收的导频信号来估计导频噪声方差，并且基于在下行链路上从基站接收的数据信号来估计数据噪声方差。该方法还包括组合导频噪声方差和数据噪声方差以获得组合噪声方差，并且基于组合的噪声方差来估计信道质量。

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