公开(公告)号：US20100103987A1

公开(公告)日：2010-04-29

申请号：US12610689

申请日：2009-11-02

申请人： Ariela Zeira

发明人： Ariela Zeira

IPC分类号： H04B1/707

CPC分类号： H04B7/0613 ,  H04B7/0837 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/0242 ,  H04L2025/03375

摘要： Data is transferred in a wireless communication system, such as a wireless spread spectrum communication system. A plurality of transmitting antennas are provided. Data is encoded to produce a plurality of data streams for each of the plurality of codes. The plurality of data streams are spread with the plurality of spreading codes, and for each transmitting antenna, one of the spread data streams of each code together is combined to produce a spread data vector. Each transmitting antenna transmits its spread data vector. The transmitted spread data vectors are received by each of a plurality of receiving antennas as a received version, and the data is recovered using the received versions.

摘要翻译： 数据在诸如无线扩频通信系统的无线通信系统中传送。 提供多个发射天线。 数据被编码以产生用于多个代码中的每一个的多个数据流。 多个数据流用多个扩展码进行扩展，对于每个发送天线，将每个代码的扩展数据流之一组合在一起以产生扩展数据向量。 每个发射天线发射其扩展数据矢量。 所发送的扩展数据矢量作为接收的版本由多个接收天线中的每一个接收，并且使用所接收的版本恢复数据。

公开(公告)号：US20090316759A1

公开(公告)日：2009-12-24

申请号：US12547028

申请日：2009-08-25

申请人： Ariela Zeira

发明人： Ariela Zeira

IPC分类号： H03D1/04 ,  H04B1/707 ,  H04B1/38 ,  H04B1/04 ,  H03K5/159

CPC分类号： H04B1/123 ,  H04B1/7105 ,  H04B1/71072 ,  H04L25/03006

摘要： A method and apparatus for multi-user detection using equalization and successive interference cancellation is provided. A signal is received in a shared spectrum. Samples of the received signal are produced as a received vector. The received vector is segmented into a plurality of vector segments. For each segment, symbols for a plurality of communications are successively determined by determining symbols for a communication and removing a contribution of that communication from the vector segment. The determined symbols are assembled into a data vector for each communication.

摘要翻译： 提供了使用均​​衡和连续干扰消除的用于多用户检测的方法和装置。 在共享频谱中接收信号。 产生接收信号的样本作为接收向量。 接收的矢​​量被分割为多个矢量段。 对于每个段，通过确定用于通信的符号并从矢量段去除该通信的贡献来连续确定用于多个通信的符号。 所确定的符号被组合成用于每个通信的数据向量。

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。

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。

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.

公开(公告)号：US07539238B2

公开(公告)日：2009-05-26

申请号：US12173163

申请日：2008-07-15

申请人： Jung-Lin Pan ,  Yuejin Huang ,  Ariela Zeira

发明人： Jung-Lin Pan ,  Yuejin Huang ,  Ariela Zeira

IPC分类号： H04L27/06 ,  H04B1/707

CPC分类号： H04B1/71052 ,  H04L25/03159 ,  H04L2025/03414 ,  H04L2025/03522 ,  H04L2025/03605

摘要： A method of data estimation for a Time Division Duplex (TDD) Code Division Multiple Access (CDMA) system or any other system using an extended algorithm (EA) in preference to a truncated algorithm (TA). The EA avoids implementation errors by choice of proper extended matrices, and accepts the use of one piece of hardware. The EA also obviates loss of multiple signals in the tail part of each data field, and avoids errors due to transformation of a Toeplitz matrix to a circulant matrix.

摘要翻译： 一种用于时分双工（TDD）码分多址（CDMA）系统或使用优先于截断算法（TA）的扩展算法（EA）的任何其他系统的数据估计方法。 EA通过选择适当的扩展矩阵来避免实现错误，并接受使用一块硬件。 EA还消除了每个数据字段的尾部中的多个信号的丢失，并且避免了由于Toeplitz矩阵向循环矩阵的转换而导致的错误。

公开(公告)号：US20090074036A1

公开(公告)日：2009-03-19

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： H04B1/00

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。

公开(公告)号：US07492750B2

公开(公告)日：2009-02-17

申请号：US10901796

申请日：2004-07-29

申请人： Younglok Kim ,  Jung-Lin Pan ,  Ariela Zeira

发明人： Younglok Kim ,  Jung-Lin Pan ,  Ariela Zeira

IPC分类号： H04J3/00

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−Npl·Kmax, 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.

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。

公开(公告)号：US20080317103A1

公开(公告)日：2008-12-25

申请号：US12185878

申请日：2008-08-05

申请人： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

发明人： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

IPC分类号： H04B1/707

CPC分类号： H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

摘要： A transmitter site transmits a plurality of different data signals at a chip rate over a shared spectrum in a code division multiple access communication system. Each transmitted data signal experiences a similar channel response. A combined signal of the transmitted data signals is received. The combined signal is sampled at a multiple of the chip rate. The channel response for the combined signal is determined. A spread data vector is determined using the combined signal samples and the estimated channel response. The data of the different data signals is determined using the spread data vector.

摘要翻译： 发射机站在码分多址通信系统中通过共享频谱以码片速率发送多个不同的数据信号。 每个发送的数据信号经历类似的信道响应。 接收发送的数据信号的组合信号。 组合信号以芯片速率的倍数进行采样。 确定组合信号的信道响应。 使用组合的信号样本和估计的信道响应来确定扩展数据向量。 使用扩展数据向量来确定不同数据信号的数据。