公开(公告)号：US20150139368A1

公开(公告)日：2015-05-21

申请号：US14082884

申请日：2013-11-18

Applicant: QUALCOMM Incorporated

Inventor： Farrokh ABRISHAMKAR ,  Venkata Gautham Chavali ,  Insung Kang ,  Bahadir Canpolat

IPC: H04L25/02

CPC classification number: H04L25/025 ,  H04B1/71072 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/0232

Abstract: Apparatus and methods for channel estimation in time division synchronous code division multiple access (TD-SCDMA) based on a signal received from one or more Node Bs include determining least squares channel metric estimates based on the received signal, identifying signal taps and noise taps in a tapped delay line channel estimate based on at least one of temporal correlations of the least squares channel metric estimates or composite hypothesis testing on the least squares channel metric estimates, and updating an interference buffer based on the signal taps and the noise taps.

Abstract translation: 基于从一个或多个节点B接收的信号的时分同步码分多址（TD-SCDMA）中的信道估计的装置和方法包括基于接收信号确定最小二乘信道度量估计，识别信号抽头和噪声抽头 基于所述最小二乘信道度量估计或所述最小二乘信道度量估计上的综合假设检验的时间相关性中的至少一个，以及基于所述信号抽头和所述噪声抽头来更新干扰缓冲器的抽头延迟线信道估计。

公开(公告)号：US20160072592A1

公开(公告)日：2016-03-10

申请号：US14849580

申请日：2015-09-09

Applicant: QUALCOMM Incorporated

Inventor： Sheng-Yuan TU ,  Farrokh ABRISHAMKAR ,  Brian Clarke BANISTER

IPC: H04B15/00 ,  H04L25/02

CPC classification number: H04L25/0254 ,  H04B1/406 ,  H04B1/525

Abstract: The various embodiments include methods and apparatuses for canceling nonlinear interference during concurrent communication of multi-technology wireless communication devices. Nonlinear interference may be estimated using a mixed-model block least squares/radial basis function neural network by generating aggressor kernels from the aggressor signals, augmenting the aggressor kernels by weight factors and executing a linear combination of the augmented output, at an intermediate layer to produce intermediate layer outputs. At an output layer, a linear filter function may be executed on the intermediate layer outputs to produce an estimated nonlinear interference used to cancel the nonlinear interference of a victim signal.

Abstract translation: 各种实施例包括用于在多技术无线通信设备的并发通信期间消除非线性干扰的方法和装置。 可以使用混合模型块最小二乘法/径向基函数神经网络来估计非线性干扰，所述神经网络通过从侵略者信号产生攻击者内核，通过权重因子增加侵略者内核并且在中间层处执行增强输出的线性组合 产生中间层输出。 在输出层，可以对中间层输出执行线性滤波函数，以产生用于消除受害信号的非线性干扰的估计的非线性干扰。

公开(公告)号：US20160072531A1

公开(公告)日：2016-03-10

申请号：US14849568

申请日：2015-09-09

Applicant: QUALCOMM Incorporated

Inventor： Farrokh ABRISHAMKAR ,  Alexandre Pierrot ,  Sheng-Yuan Tu

IPC: H04B1/10

CPC classification number: G06N3/04 ,  G05B13/027 ,  G06N3/08 ,  H04B1/1036 ,  H04B1/1081 ,  H04B1/123 ,  H04B1/406 ,  H04B1/525 ,  H04B1/7107 ,  H04L25/03159 ,  H04W88/06

Abstract: The various embodiments include methods and apparatuses for canceling nonlinear interference during concurrent communication of multi-technology wireless communication devices. Nonlinear interference may be estimated using a support vector regression interference filter by generating one or more aggressor kernels, augmenting the one or more kernels by weight factors, and executing a regression function of the augmented components, to produce an estimated jammer signals. At an output layer, estimated jammer signals may be linearly combined to produce an estimated nonlinear interference used to cancel the nonlinear interference of a victim signal.

Abstract translation: 各种实施例包括用于在多技术无线通信设备的并发通信期间消除非线性干扰的方法和装置。 可以使用支持向量回归干扰滤波器通过生成一个或多个攻击者内核，通过加权因子来增加一个或多个内核并执行增强的分量的回归函数来估计非线性干扰，以产生估计的干扰信号。 在输出层，估计的干扰信号可以被线性组合以产生用于消除受害信号的非线性干扰的估计的非线性干扰。

公开(公告)号：US20160014726A1

公开(公告)日：2016-01-14

申请号：US14327261

申请日：2014-07-09

Applicant: QUALCOMM Incorporated

Inventor： Farrokh ABRISHAMKAR ,  Sheng-Yuan TU ,  Insung KANG ,  Bahadir CANPOLAT ,  Lan LAN ,  Chien Chung LIN

IPC: H04W72/04 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04W72/042 ,  H04L5/003 ,  H04L25/0204 ,  H04L25/0236 ,  H04L25/03171 ,  H04L25/03292 ,  H04W72/0446

Abstract: Apparatus and methods for wireless communication include receiving, in a time division synchronous code division multiple access (TD-SCDMA) network, a first number of symbols before a midamble, the midamble, and a second number of symbols after the midamble; determining first forward and backward probabilities for a first subset of the first number of symbols and second forward and backward probabilities for a second subset of the second number of symbols; determining first posterior probabilities for the first subset of the first number of symbols and second posterior probabilities for the second subset of the second number of symbols; determining a first target posterior probability and a second target posterior probability; detecting a first target symbol and a second target symbol; and determining a first channel estimate corresponding to the first target symbol and a second channel estimate corresponding to the second target symbol.

Abstract translation: 用于无线通信的装置和方法包括：在时分同步码分多址（TD-SCDMA）网络中接收中间码之前的第一数量符号，中间码和中间码之后的第二数量的符号; 确定所述第一数量符号的第一子集的第一前向和后向概率以及所述第二数量符号的第二子集的第二前向和后向概率; 确定第一数量符号的第一子集的第一后验概率和第二数量符号的第二子集的第二后验概率; 确定第一目标后验概率和第二目标后验概率; 检测第一目标符号和第二目标符号; 以及确定对应于所述第一目标符号的第一信道估计和对应于所述第二目标符号的第二信道估计。

公开(公告)号：US20150139366A1

公开(公告)日：2015-05-21

申请号：US14082867

申请日：2013-11-18

Applicant: QUALCOMM Incorporated

Inventor： Venkata Gautham CHAVALI ,  Farrokh ABRISHAMKAR ,  Insung KANG ,  Roy Franklin QUICK, JR. ,  Dario FERTONANI ,  Ming KANG ,  Hari SANKAR

IPC: H04L25/02

CPC classification number: H04L25/025 ,  H04B1/71072 ,  H04B1/7113 ,  H04L25/0204 ,  H04L25/026

Abstract: Apparatus and methods for channel estimation includes determining two streams corresponding to odd and even samples of a received signal that is sampled at a first chip rate, performing least squares successive interference cancellation on each of the two streams to obtain odd and even raw channel estimates, interlacing the odd and even raw channel estimates to obtain interlaced channel estimates, interpolating additional samples in the interlaced channel estimates to create higher chip rate channel estimates, identifying a first set of tap positions based on the higher chip rate channel estimates, and applying matching pursuit to the first set of tap positions to identify a second set of tap positions, wherein the second set of tap positions includes fewer tap positions than the first set of tap positions.

Abstract translation: 用于信道估计的装置和方法包括确定对应于以第一码片速率采样的接收信号的奇数和偶数样本的两个流，在两个流中的每一个上执行最小二乘法连续干扰消除以获得奇数和偶数的原始信道估计， 将奇数和偶数原始信道估计交错以获得隔行信道估计，在隔行信道估计中内插附加采样以产生更高的码片速率信道估计，基于较高码片速率信道估计来识别第一组抽头位置，以及应用匹配追踪 到第一组抽头位置以识别第二组抽头位置，其中第二组抽头位置包括比第一组抽头位置更少的抽头位置。

公开(公告)号：US20160071009A1

公开(公告)日：2016-03-10

申请号：US14849550

申请日：2015-09-09

Applicant: QUALCOMM Incorporated

Inventor： Farrokh ABRISHAMKAR ,  Sheng-Yuan Tu ,  Jilei Hou

IPC: G06N3/08

CPC classification number: G06N3/08 ,  H04B1/123 ,  H04J11/005

Abstract: The various embodiments include methods and apparatuses for canceling nonlinear interference during concurrent communication of multi-technology wireless communication devices. Nonlinear interference may be estimated using a radial basis function neural network with Hammerstein structure by executing a radial basis function on aggressor signals at a hidden layer of the radial basis function neural network with Hammerstein structure to obtain hidden layer outputs, augmenting aggressor signal(s) by weight factors and, executing a linear combination of the augmented output, at an intermediate layer to produce a combined hidden layer outputs. At an output layer, a linear filter function may be executed on the hidden layer outputs to produce an estimated nonlinear interference used to cancel the nonlinear interference of a victim signal.

Abstract translation: 各种实施例包括用于在多技术无线通信设备的并发通信期间消除非线性干扰的方法和装置。 可以使用具有Hammerstein结构的径向基函数神经网络来估计非线性干扰，通过在具有Hammerstein结构的径向基函数神经网络的隐层处对侵略者信号执行径向基函数以获得隐层输出，增强侵略者信号， 并且在中间层执行增强输出的线性组合以产生组合的隐层输出。 在输出层，可以在隐层输出上执行线性滤波函数，以产生用于消除受害信号的非线性干扰的估计的非线性干扰。

公开(公告)号：US20160013877A1

公开(公告)日：2016-01-14

申请号：US14327291

申请日：2014-07-09

Applicant: QUALCOMM Incorporated

Inventor： Sheng-Yuan TU ,  Farrokh ABRISHAMKAR ,  Venkata Gautham CHAVALI ,  Bahadir CANPOLAT ,  Insung KANG ,  Ming KANG ,  Hari SANKAR ,  Aamod Dinkar KHANDEKAR

IPC: H04J11/00

CPC classification number: H04J11/005 ,  H04B1/7103 ,  H04J11/0036

Abstract: Apparatus, methods, and computer program product for wireless communication, including receiving a plurality of chips in a time division synchronous code division multiple access (TD-SCDMA) network; performing channel matched filtering, despreading, and descrambling on the plurality of chips to determine a plurality of received symbols for each of a plurality of cells; performing symbol-level inter-cell interference cancellation on the plurality of received symbols to determine a plurality of serving cell symbol estimates; and performing multi-user detection on the plurality of serving cell symbol estimates to determine a plurality of detected serving cell symbols.

Abstract translation: 用于无线通信的装置，方法和计算机程序产品，包括在时分同步码分多址（TD-SCDMA）网络中接收多个码片; 对所述多个芯片执行信道匹配滤波，解扩和解扰以确定多个小区中的每一个的多个接收符号; 对所述多个接收符号执行符号级小区间干扰消除以确定多个服务小区符号估计; 以及对所述多个服务小区符号估计执行多用户检测以确定多个检测到的服务小区符号。

公开(公告)号：US20150139367A1

公开(公告)日：2015-05-21

申请号：US14082877

申请日：2013-11-18

Applicant: QUALCOMM Incorporated

Inventor： Farrokh ABRISHAMKAR ,  Venkata Gautham Chavali ,  Insung Kang ,  Carlos Ruben Cabrera-Mercader ,  Hari Sankar ,  Aamod Dinkar Khandekar

IPC: H04L25/02

CPC classification number: H04L25/0256 ,  H04B1/71072 ,  H04L25/0204 ,  H04L25/025

Abstract: Apparatus and methods for channel estimation include determining two streams corresponding to odd and even samples of a received signal that is sampled at a first chip rate, performing least squares successive interference cancellation on each of the two streams to obtain odd and even raw channel estimates, interlacing the odd and even raw channel estimates to obtain interlaced channel estimates, interpolating additional samples in the interlaced channel estimates to create higher chip rate channel estimates, identifying a first set of tap positions based on the higher chip rate channel estimates, applying matching pursuit to the first set of tap positions to identify a second set of tap positions, wherein the second set of tap positions includes fewer tap positions than the first set of tap positions, and determining a third set of tap positions by clustering each tap position included in the second set of tap positions.

Abstract translation: 用于信道估计的装置和方法包括确定对应于以第一码片速率采样的接收信号的奇数和偶数采样的两个流，对两个流中的每个流执行最小二乘法连续干扰消除以获得奇数和偶数原始信道估计， 将奇数和偶数原始信道估计交错以获得隔行信道估计，在隔行信道估计中内插附加采样以产生更高的码片速率信道估计，基于较高码片速率信道估计来识别第一组抽头位置，将匹配追踪应用于 所述第一抽头位置集合以识别第二组抽头位置，其中所述第二抽头位置集合包括比所述第一抽头位置集合更少的抽头位置，以及通过将包括在所述抽头位置中的每个抽头位置聚类来确定第三抽头位置集合 第二组抽头位置。