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1. 发明授权

US07483475B2 Efficient joint detection 失效
标题翻译：高效联合检测
公开(公告)号：US07483475B2
公开(公告)日：2009-01-27
申请号：US11926534
申请日：2007-10-29
申请人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
发明人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
IPC分类号： H04B1/00
CPC分类号： H04B1/71052 , H04B2201/70707
摘要： K data signals, or bursts, are transmitted over a shared spectrum in a code division multiple access communication format. A combined signal is received and sampled over the shared spectrum, as a plurality of received vector versions. The combined signal includes the K transmitted data signals. A plurality of system matrices and an associated covariance matrix using codes and estimated impulse responses of the K data signals is produced. Each system matrix corresponds to a received vector version. The system and covariance matrices are extended and approximated as block circulant matrices. A diagonal matrix of each of the; extended and approximated system and covariance matrices are determined by prime factor algorithm—fast Fourier transform (PFA-FFT) without division of the matrix. The received vector versions are extended. A product of the diagonal matrices and the extended received vector versions is taken. An inverse block discrete Fourier transform is performed by a PFA-FFT on a result of the product to produce the estimated data of the K data signals.
摘要翻译： K个数据信号或脉冲串以码分多址通信格式通过共享频谱发送。组合信号在共享频谱上被接收和采样，作为多个接收的矢量版本。组合信号包括K个发送的数据信号。产生多个系统矩阵和使用K个数据信号的代码和估计的脉冲响应的相关协方差矩阵。每个系统矩阵对应于接收到的矢量版本。系统和协方差矩阵被扩展和近似为块循环矩阵。每个的对角矩阵; 扩展和近似系统和协方差矩阵通过素数因子算法 - 快速傅里叶变换（PFA-FFT）来确定，而不分割矩阵。收到的矢量版本被扩展。采用对角矩阵和扩展接收向量版本的乘积。通过PFA-FFT对乘积的结果执行逆块离散傅里叶变换，以产生K个数据信号的估计数据。

2. 发明申请

US20090129447A1 EFFICIENT JOINT DETECTION 失效
标题翻译：有效的联合检测
公开(公告)号：US20090129447A1
公开(公告)日：2009-05-21
申请号：US12358739
申请日：2009-01-23
申请人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
发明人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
IPC分类号： H04B1/707
CPC分类号： H04B1/71052 , H04B2201/70707
摘要： K data signals, or bursts, are transmitted over a shared spectrum in a code division multiple access communication format. A combined signal is received and sampled over the shared spectrum, as a plurality of received vector versions. The combined signal includes the K transmitted data signals. A plurality of system matrices and an associated covariance matrix using codes and estimated impulse responses of the K data signals is produced. Each system matrix corresponds to a received vector version. The system and covariance matrices are extended and approximated as block circulant matrices. A diagonal matrix of each of the extended and approximated system and covariance matrices are determined by prime factor algorithm-fast Fourier transform (PFA-FFT) without division of the matrix. The received vector versions are extended. A product of the diagonal matrices and the extended received vector versions is taken. An inverse block discrete Fourier transform is performed by a PFA-FFT on a result of the product to produce the estimated data of the K data signals.
摘要翻译： K个数据信号或脉冲串以码分多址通信格式通过共享频谱发送。组合信号在共享频谱上被接收和采样，作为多个接收的矢量版本。组合信号包括K个发送的数据信号。产生多个系统矩阵和使用K个数据信号的代码和估计的脉冲响应的相关协方差矩阵。每个系统矩阵对应于接收到的矢量版本。系统和协方差矩阵被扩展和近似为块循环矩阵。每个扩展和近似的系统和协方差矩阵的对角矩阵由质数因子算法 - 快速傅里叶变换（PFA-FFT）确定，而不分割矩阵。收到的矢量版本被扩展。采用对角矩阵和扩展接收向量版本的乘积。通过PFA-FFT对乘积的结果执行逆块离散傅里叶变换，以产生K个数据信号的估计数据。

3. 发明授权

US07643584B2 Efficient joint detection 失效
标题翻译：高效联合检测
公开(公告)号：US07643584B2
公开(公告)日：2010-01-05
申请号：US12358739
申请日：2009-01-23
申请人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
发明人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
IPC分类号： H04L27/06
CPC分类号： H04B1/71052 , H04B2201/70707
摘要： Data signals are received over a shared spectrum in a code division multiple access communication format as a combined signal. The combined signal is sampled as a plurality of received vector versions. A plurality of system matrices and an associated covariance matrix using codes and estimated impulse responses of the data signals is produced. Each system matrix corresponds to a received vector version. The system and covariance matrices are extended and approximated as block circulant matrices. A diagonal matrix of each of the extended and approximated system and covariance matrices are determined by prime factor algorithm-fast Fourier transform (PFA-FFT)without division of the matrix. The received vector versions are extended. A product of the diagonal matrices and the extended received vector versions is taken. An inverse block discrete Fourier transform is performed by a PFA-FFT a on a result of the product to produce the estimated data.
摘要翻译：数据信号作为组合信号以码分多址通信格式通过共享频谱接收。组合信号被采样为多个接收矢量版本。产生多个系统矩阵和使用代码和数据信号的估计脉冲响应的相关协方差矩阵。每个系统矩阵对应于接收到的矢量版本。系统和协方差矩阵被扩展和近似为块循环矩阵。每个扩展和近似的系统和协方差矩阵的对角矩阵由质数因子算法 - 快速傅里叶变换（PFA-FFT）确定，而不分割矩阵。收到的矢量版本被扩展。采用对角矩阵和扩展接收向量版本的乘积。通过PFA-FFT对产品的结果执行逆块离散傅立叶变换以产生估计数据。

4. 发明授权

US07639729B2 Channel estimation method and apparatus using fast fourier transforms 失效
标题翻译：使用快速傅里叶变换的信道估计方法和装置
公开(公告)号：US07639729B2
公开(公告)日：2009-12-29
申请号：US10618227
申请日：2003-07-11
申请人： Jung-Lin Pan , John W. Haim , Ariela Zeira
发明人： Jung-Lin Pan , John W. Haim , Ariela Zeira
IPC分类号： H04B1/00
CPC分类号： H04L25/0232 , H04B2001/6912 , H04L27/103 , H04L27/2647
摘要： A low cost method and system for efficiently implementing channel estimation in a wireless communication system using any desired length of a fast Fourier transform (FFT) independent of burst type or signal structure. The hardware complexity required to perform the channel estimation to process a plurality of different burst types is reduced. Simple tail zero-padding is used when the length of FFT is extended to a desired length for more efficient computation.
摘要翻译：一种用于在无线通信系统中有效实现信道估计的低成本方法和系统，其使用独立于突发类型或信号结构的快速傅里叶变换（FFT）的任何期望长度。减少执行信道估计以处理多个不同突发类型所需的硬件复杂度。当FFT的长度扩展到期望的长度以便更有效的计算时，使用简单的尾部零填充。

5. 发明授权

US07289552B2 Efficient joint detection 失效
标题翻译：高效联合检测
公开(公告)号：US07289552B2
公开(公告)日：2007-10-30
申请号：US10644361
申请日：2003-08-20
申请人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
发明人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
IPC分类号： H04B1/00 , H03D27/06 , G06F17/14
CPC分类号： H04B1/71052 , H04B2201/70707
摘要： K data signals, or bursts, are transmitted over a shared spectrum in a code division multiple access communication format. A combined signal is received and sampled over the shared spectrum, as a plurality of received vector versions. The combined signal includes the K transmitted data signals. A plurality of system matrices and an associated covariance matrix using codes and estimated impulse responses of the K data signals is produced. Each system matrix corresponds to a received vector version. The system and covariance matrices are extended and approximated as block circulant matrices. A diagonal matrix of each of the extended and approximated system and covariance matrices are determined by prime factor algorithm-fast Fourier transform (PFA-FFT) without division of the matrix. The received vector versions are extended. A product of the diagonal matrices and the extended received vector versions is taken. An inverse block discrete Fourier transform is performed by a PFA-FFT on a result of the product to produce the estimated data of the K data signals.
摘要翻译： K个数据信号或脉冲串以码分多址通信格式通过共享频谱发送。组合信号在共享频谱上被接收和采样，作为多个接收的矢量版本。组合信号包括K个发送的数据信号。产生多个系统矩阵和使用K个数据信号的代码和估计的脉冲响应的相关协方差矩阵。每个系统矩阵对应于接收到的矢量版本。系统和协方差矩阵被扩展和近似为块循环矩阵。每个扩展和近似的系统和协方差矩阵的对角矩阵由质数因子算法 - 快速傅里叶变换（PFA-FFT）确定，而不分割矩阵。收到的矢量版本被扩展。采用对角矩阵和扩展接收向量版本的乘积。通过PFA-FFT对乘积的结果执行逆块离散傅里叶变换，以产生K个数据信号的估计数据。

6. 发明授权

US08284854B2 Groupwise successive interference cancellation for block transmission with reception diversity 有权
标题翻译：具有接收分集的块传输的分组连续干扰消除
公开(公告)号：US08284854B2
公开(公告)日：2012-10-09
申请号：US12329985
申请日：2008-12-08
申请人： Jaeyoung Kwak , Jung-Lin Pan , Ariela Zeira
发明人： Jaeyoung Kwak , Jung-Lin Pan , Ariela Zeira
IPC分类号： H04L1/02
CPC分类号： H04B1/71055 , H04B1/7093 , H04B1/71072 , H04B7/0854 , H04L1/06 , H04L25/0212 , H04L25/0226 , H04L25/03305 , H04L25/03318
摘要： A plurality of data signals are received over an antenna array having a plurality of antenna elements. The data signals are transmitted over a shared spectrum in a wireless communication system. A signal having each of the data signals is received over each antenna element. The plurality of data signals are grouped into a plurality of groups. The received signals of the antenna elements are matched filtered for a first group of the plurality of groups, producing a matched filtered result. Data is jointly detected of the first group using the matched filtered result. An interference correction signal is constructed using the detected data for each antenna element. The interference cancelled result is subtracted from the received signal of each antenna element, producing an interference cancelled result for each antenna element. Data is successively detected for remaining groups using the interference cancelled result for each antenna element.
摘要翻译：通过具有多个天线元件的天线阵列接收多个数据信号。数据信号通过无线通信系统中的共享频谱传输。在每个天线元件上接收具有每个数据信号的信号。多个数据信号被分组成多个组。天线元件的接收信号对于多个组中的第一组进行匹配滤波，产生匹配的滤波结果。使用匹配的过滤结果联合检测第一组的数据。使用每个天线元件的检测数据构建干扰校正信号。从每个天线元件的接收信号中减去干扰消除结果，产生每个天线元件的干扰消除结果。使用每个天线元件的干扰消除结果对剩余组连续检测数据。

7. 发明授权

US07609750B2 Segment-wise channel equalization based data estimation 失效
标题翻译：基于分段信道均衡的数据估计
公开(公告)号：US07609750B2
公开(公告)日：2009-10-27
申请号：US12277918
申请日：2008-11-25
申请人： Jung-Lin Pan , Ariela Zeira
发明人： Jung-Lin Pan , Ariela Zeira
IPC分类号： H04L27/30
CPC分类号： H04B1/7105 , H04B1/707
摘要： Data is estimated of a plurality of received spread spectrum signals by a wireless communication apparatus. The plurality of received communications are received in a shared spectrum. The received communications are sampled to produce a received vector of sequential samples. The received vector is processed to produce a plurality of segments. Each segment is processed separately to estimate data of the received communications.
摘要翻译：通过无线通信装置估计多个接收的扩频信号的数据。多个接收到的通信在共享频谱中被接收。接收到的通信被采样以产生接收的连续采样矢量。处理所接收的矢量以产生多个段。每个段被单独处理以估计接收到的通信的数据。

8. 发明申请

US20090245220A1 RANDOM ACCESS CHANNEL PREAMBLE 有权
标题翻译：随机访问通道前置
公开(公告)号：US20090245220A1
公开(公告)日：2009-10-01
申请号：US12430414
申请日：2009-04-27
申请人： Stephen G. Dick , Charles Dennean , Eldad Zeira , Jung-Lin Pan , Sung-Hyuk Shin , Ariela Zeira
发明人： Stephen G. Dick , Charles Dennean , Eldad Zeira , Jung-Lin Pan , Sung-Hyuk Shin , Ariela Zeira
IPC分类号： H04B7/216
CPC分类号： H04B7/2628 , H04B1/707 , H04B1/7077 , H04B1/7093 , H04J13/00 , H04J13/10
摘要： One out of sixteen preamble signatures is selected. A code is produced based on the selected preamble signature. The produced code is phase rotated to produce a processed preamble signature signal. The processed preamble signature signal is used in processing the CDMA RACH signal and the CDMA RACH signal is used to access a CDMA system.
摘要翻译：选择十六个前缀签名中的一个。基于所选择的前导签名生成代码。产生的代码被相位旋转以产生经处理的前导签名信号。经处理的前导签名信号用于处理CDMA RACH信号，CDMA RACH信号用于接入CDMA系统。

9. 发明授权

US07596171B2 Data detection for codes with non-uniform spreading factors 有权
标题翻译：具有不均匀扩散因子的码的数据检测
公开(公告)号：US07596171B2
公开(公告)日：2009-09-29
申请号：US11962779
申请日：2007-12-21
申请人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
发明人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
IPC分类号： H04B1/707
CPC分类号： H04J13/0044 , H04B1/707 , H04B1/71052 , H04B1/71055 , H04B2201/70703 , H04B2201/70705
摘要： A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.
摘要翻译：接收多个通信信号。每个通信信号具有相关代码。至少两个通信信号具有不同的扩展因子。相关代码具有扰码周期。总系统响应矩阵具有块。每个块具有长度M的一维和基于部分M的长度的另一维度和每个通信的扩展因子。 M基于扰码周期。使用所构建的系统响应矩阵来接收所接收的多个通信信号的数据。

10. 发明申请

US20090168739A1 METHOD AND APPARATUS EMPLOYED IN A USER EQUIPMENT FOR INTERFERENCE SIGNAL CODE POWER AND NOISE VARIANCE ESTIMATION 有权
公开(公告)号：US20090168739A1
公开(公告)日：2009-07-02
申请号：US12368586
申请日：2009-02-10
申请人： Younglok Kim , Jung-Lin Pan , Ariela Zeira
发明人： Younglok Kim , Jung-Lin Pan , Ariela Zeira
IPC分类号： H04B7/216
CPC分类号： H04B1/7103 , H04B1/7105 , H04B1/71055 , H04B1/71057 , H04L1/20
摘要： Method and apparatus employed by a UE for interference signal code power noise variance estimation employing a reduced number of samples utilizing the equation σ ^ n 2 = T · ∑ i = 1 N sample   h n  ( i )  2 , where T = G · γ  ( r ) N sample , where Nsample=Lchest−Np1·Kmax, and where γ  ( r ) = [ 1 + ( 1 r - 1 ) · ln  ( 1 - r ) ] - 1 and where r = N sample L chest . As an alternative, a recursive technique may be employed wherein the noise variance is estimated from the ignored coefficients of the estimated channel output and upgraded recursively as per the following: σ ^ n 2 = 1 KW  ∑ j = 1 K  ∑ i = 1 W   h i ( j ) - h ^ i ( j )  2 , where ĥi(j) are the channel estimates after the post processing and the noise variance estimates {circumflex over (σ)}n-12, and the initial values of ĥi(j) are all zeros.

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