公开(公告)号：US09124452B2

公开(公告)日：2015-09-01

申请号：US13738365

申请日：2013-01-10

Applicant: QUALCOMM Incorporated

Inventor： Chun-Hao Hsu ,  Aditya Dua ,  Nathan Dingsai Yee ,  Abhinav Gupta

IPC: H04B1/10 ,  H04L27/01 ,  H04B1/7075 ,  H04B1/7107 ,  H04B1/7115

CPC classification number: H04L27/01 ,  H04B1/70754 ,  H04B1/7107 ,  H04B1/7115 ,  H04B2201/70722 ,  H04B2201/70724

Abstract: 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.

Abstract translation: 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，通过将在多路径信道上接收到的信号的信号的时间存储的样本划分为多个簇，可以在每个簇上以迭代方式使用短长度均衡器，因此不需要大的 长度均衡器，同时在大延迟传播下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。

公开(公告)号：US09178562B2

公开(公告)日：2015-11-03

申请号：US13797392

申请日：2013-03-12

Applicant: QUALCOMM Incorporated

Inventor： Aditya Dua ,  Lei Xiao

IPC: H04B1/00 ,  H04B1/7115 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04B1/7115 ,  H04L25/0216 ,  H04L25/03019 ,  H04L2025/03547 ,  H04L2025/0377

Abstract: 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.

Abstract translation: 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，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。

公开(公告)号：US20140192853A1

公开(公告)日：2014-07-10

申请号：US13738365

申请日：2013-01-10

Applicant: QUALCOMM INCORPORATED

Inventor： Chun-Hao Hsu ,  Aditya Dua ,  Nathan Dingsai Yee ,  Abhinav Gupta

IPC: H04L27/01

CPC classification number: H04L27/01 ,  H04B1/70754 ,  H04B1/7107 ,  H04B1/7115 ,  H04B2201/70722 ,  H04B2201/70724

Abstract: 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.

Abstract translation: 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，通过将在多路径信道上接收到的信号的信号的时间存储的样本划分为多个簇，可以在每个簇上以迭代方式使用短长度均衡器，因此不需要大的 长度均衡器，同时在大延迟传播下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。

公开(公告)号：US08761322B2

公开(公告)日：2014-06-24

申请号：US13633762

申请日：2012-10-02

Applicant: QUALCOMM Incorporated

Inventor： Manish Jain ,  Aditya Dua ,  Manini Shah ,  Keith Saints ,  Farrokh Abrishamkar

IPC: H04B1/10

CPC classification number: H04L25/0212 ,  H04L25/023

Abstract: The present disclosure presents methods and apparatuses for enhanced received signal processing using signal-based channel impulse response (CIR) estimation. For example, according to an example method presented herein, a user equipment (UE) or a component therein may receive a signal corresponding to a transmitted signal sent by a network entity, wherein the transmitted signal comprises at least a data channel, estimate chip contents of the transmitted signal, based on the received signal including the data channel, to obtain estimated chip contents, and compute an estimated channel impulse response (CIR) based on at least the estimated chip contents. Based on this estimated CIR, the UE may thereafter reprogram a received signal reconstruction filter, perform interference cancellation procedures, and/or adjust one or more equalizer taps. By performing such functions, the UE may exhibit improved communication characteristics and enable a more robust user experience.

Abstract translation: 本公开提出了使用基于信号的信道脉冲响应（CIR）估计的用于增强的接收信号处理的方法和装置。 例如，根据这里呈现的示例性方法，用户设备（UE）或其中的组件可以接收与由网络实体发送的发送信号相对应的信号，其中发送信号至少包括数据信道，估计芯片内容 基于包括数据信道的接收信号，获得估计的芯片内容，并且至少基于估计的芯片内容计算估计的信道脉冲响应（CIR）。 基于该估计的CIR，UE然后可以重新编程接收信号重构滤波器，执行干扰消除过程和/或调整一个或多个均衡器抽头。 通过执行这样的功能，UE可以呈现改进的通信特性并且实现更强大的用户体验。

公开(公告)号：US20140016677A1

公开(公告)日：2014-01-16

申请号：US13797392

申请日：2013-03-12

Applicant: QUALCOMM INCORPORATED

Inventor： Aditya Dua ,  Lei Xiao

IPC: H04B1/7115

CPC classification number: H04B1/7115 ,  H04L25/0216 ,  H04L25/03019 ,  H04L2025/03547 ,  H04L2025/0377

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140093021A1

公开(公告)日：2014-04-03

申请号：US13633762

申请日：2012-10-02

Applicant: QUALCOMM INCORPORATED

Inventor： Manish JAIN ,  Aditya Dua ,  Manini Shah ,  Keith Saints ,  Farrokh Abrishamkar

IPC: H03D1/04

CPC classification number: H04L25/0212 ,  H04L25/023

Abstract: The present disclosure presents methods and apparatuses for enhanced received signal processing using signal-based channel impulse response (CIR) estimation. For example, according to an example method presented herein, a user equipment (UE) or a component therein may receive a signal corresponding to a transmitted signal sent by a network entity, wherein the transmitted signal comprises at least a data channel, estimate chip contents of the transmitted signal, based on the received signal including the data channel, to obtain estimated chip contents, and compute an estimated channel impulse response (CIR) based on at least the estimated chip contents. Based on this estimated CIR, the UE may thereafter reprogram a received signal reconstruction filter, perform interference cancelation procedures, and/or adjust one or more equalizer taps. By performing such functions, the UE may exhibit improved communication characteristics and enable a more robust user experience.

Abstract translation: 本公开提出了使用基于信号的信道脉冲响应（CIR）估计的用于增强的接收信号处理的方法和装置。 例如，根据这里呈现的示例性方法，用户设备（UE）或其中的组件可以接收与由网络实体发送的发送信号相对应的信号，其中发送信号至少包括数据信道，估计芯片内容 基于包括数据信道的接收信号，获得估计的芯片内容，并且至少基于估计的芯片内容计算估计的信道脉冲响应（CIR）。 基于该估计的CIR，UE然后可以重新编程接收信号重构滤波器，执行干扰消除过程和/或调整一个或多个均衡器抽头。 通过执行这样的功能，UE可以呈现改进的通信特性并且实现更强大的用户体验。

公开(公告)号：US08942331B2

公开(公告)日：2015-01-27

申请号：US13757553

申请日：2013-02-01

Applicant: QUALCOMM Incorporated

Inventor： Aditya Dua ,  Nate Chizgi

IPC: H04B7/10 ,  H04L27/01 ,  H04B7/08 ,  H04L25/02

CPC classification number: H04L27/01 ,  H04B7/0845 ,  H04B7/0854 ,  H04L25/0204

Abstract: Disclosed are methods and apparatus for initializing an equalizer in a diversity receiver. In one aspect, 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. In one aspect, 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. In another aspect, the adaptive adjusting of the equalizer taps is based adaptive conditioning on the diagonal of the covariance matrix.

Abstract translation: 公开了用于在分集接收机中初始化均衡器的方法和装置。 一方面，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。 在一个方面，均衡器抽头的自适应调整是基于具有较高噪声功率的接收机链的CIR和协方差度量根据从噪声功率估计确定的比例因子来缩放。 在另一方面，均衡器抽头的自适应调整是基于协方差矩阵的对角线上的自适应调节。