公开(公告)号：US20020154619A1

公开(公告)日：2002-10-24

申请号：US10080123

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

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

IPC: H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated as a channel response matrix at the multiple of the chip rate. A padded version of a spread data vector of a size corresponding to the multiple chip rate using a column of the channel response matrix, the estimated channel response matrix, the samples and a fourier transform. The spread data vector is estimated by eliminating elements of the padded version so that the estimated spread data vector is of a size corresponding to the chip rate.

Abstract translation: 码分多址基站用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 信道响应被估计为码片速率倍数的信道响应矩阵。 使用信道响应矩阵的列，估计的信道响应矩阵，样本和傅里叶变换来对应于多码片速率的大小的扩展数据矢量的填充版本。 通过消除填充版本的元素来估计扩展数据向量，使得估计的扩展数据向量具有与码片速率相对应的大小。

公开(公告)号：US20020159383A1

公开(公告)日：2002-10-31

申请号：US10080120

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

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

IPC: H04J011/00 ,  H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated at the multiple of the chip rate. The multiple chip rate estimated channel response is combined as an effective chip rate channel response. A spread data vector is determined using the effective samples, the effective channel response and a fourier transform. Data of the data signals is estimated using the spread data vector.

Abstract translation: 码分多址用户设备用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 信道响应以芯片速率的倍数估计。 多码片速率估计信道响应被组合为有效的码片速率信道响应。 使用有效样本，有效信道响应和傅立叶变换来确定扩展数据向量。 使用扩展数据向量来估计数据信号的数据。

公开(公告)号：US20020131383A1

公开(公告)日：2002-09-19

申请号：US10080022

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

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

IPC: H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A cross correlation matrix is determined using the estimated channel response. The spread data vector is determined using order recursions by determining a first spread data estimate using an element from the cross correlation matrix and recursively determining further estimates using additional elements of the cross correlation matrix. Data of the data signals is estimated using the spread data vector.

Abstract translation: 码分多址用户设备用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 估计频道响应。 使用估计的信道响应来确定互相关矩阵。 通过使用来自互相关矩阵的元素确定第一扩展数据估计并使用互相关矩阵的附加元素递归地确定另外的估计，使用顺序递归来确定扩展数据向量。 使用扩展数据向量来估计数据信号的数据。

公开(公告)号：US20020159428A1

公开(公告)日：2002-10-31

申请号：US10080045

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

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

IPC: H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A cross correlation matrix is determined using the estimated channel response. The spread data vector is determined using order recursions by determining a first spread data estimate using an element from the cross correlation matrix and recursively determining further estimates using additional elements of the cross correlation matrix. Data of the data signals is estimated using the spread data vector.

Abstract translation: 码分多址基站用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 估计频道响应。 使用估计的信道响应来确定互相关矩阵。 通过使用来自互相关矩阵的元素确定第一扩展数据估计并使用互相关矩阵的附加元素递归地确定另外的估计，使用顺序递归来确定扩展数据向量。 使用扩展数据向量来估计数据信号的数据。

公开(公告)号：US20020154599A1

公开(公告)日：2002-10-24

申请号：US10080099

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

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

IPC: H04J011/00 ,  H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A column of a channel correlation matrix is determined using the estimated channel response. A spread data vector is determined using the determined column, the estimated channel response, the received combined signal and a fourier transform. Data of the data signals is estimated using the spread data vector.

Abstract translation: 码分多址基站用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 估计频道响应。 使用估计的信道响应来确定信道相关矩阵的列。 使用确定的列，估计的信道响应，接收的组合信号和傅里叶变换来确定扩展数据向量。 使用扩展数据向量来估计数据信号的数据。

公开(公告)号：US20020126619A1

公开(公告)日：2002-09-12

申请号：US10080125

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

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

IPC: H04J011/00 ,  H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A column of a channel correlation matrix is determined using the estimated channel response. A spread data vector is determined using the determined column, the estimated channel response, the received combined signal and a fourier transform. Data of the data signals is estimated using the spread data vector.

Abstract translation: 码分多址用户设备用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 估计频道响应。 使用估计的信道响应来确定信道相关矩阵的列。 使用确定的列，估计的信道响应，接收的组合信号和傅里叶变换来确定扩展数据向量。 使用扩展数据向量来估计数据信号的数据。

公开(公告)号：US20020141373A1

公开(公告)日：2002-10-03

申请号：US10080124

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

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

IPC: H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over a shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A first element of a spread data vector is determined using the combined signal samples and the estimated channel response. A factor from the first element determination is used to determine remaining elements of the spread data vector. Data of the data signals is estimated using the determined elements of the spread data vector.

Abstract translation: 码分多址基站用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收到的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 估计频道响应。 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的第一元素。 使用来自第一元素确定的因子来确定扩展数据向量的剩余元素。 使用所确定的扩展数据矢量的元素来估计数据信号的数据。

公开(公告)号：US20020131384A1

公开(公告)日：2002-09-19

申请号：US10080185

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

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

IPC: H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated at the multiple of the chip rate. The multiple chip rate estimated channel response is combined as an effective chip rate channel response. A spread data vector is determined using the effective samples, the effective channel response and a fourier transform. Data of the data signals is estimated using the spread data vector.

Abstract translation: 码分多址基站用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 信道响应以芯片速率的倍数估计。 多码片速率估计信道响应被组合为有效的码片速率信道响应。 使用有效样本，有效信道响应和傅立叶变换来确定扩展数据向量。 使用扩展数据向量来估计数据信号的数据。

公开(公告)号：US20020126646A1

公开(公告)日：2002-09-12

申请号：US10080140

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

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

IPC: H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A cross correlation matrix is determined using the estimated channel response. A subblock of the cross correlation matrix is selected. A Cholesky factor for the subblock is determined. The Cholesky factor is extended. The spread data vector is determined using the extended Cholesky factor, a version of the channel response and the samples. Data of the data signals is estimated using the spread data vector.

Abstract translation: 码分多址用户设备用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 估计频道响应。 使用估计的信道响应来确定互相关矩阵。 选择互相关矩阵的子块。 确定子块的Cholesky因子。 Cholesky因子得到延长。 扩展数据向量使用扩展的Cholesky因子，信道响应的版本和样本来确定。 使用扩展数据向量来估计数据信号的数据。

公开(公告)号：US20020141372A1

公开(公告)日：2002-10-03

申请号：US10080073

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

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

IPC: H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A cross correlation matrix is determined using the estimated channel response. A subblock of the cross correlation matrix is selected. A Cholesky factor for the subblock is determined. The Cholesky factor is extended. The spread data vector is determined using the extended Cholesky factor, a version of the channel response and the samples. Data of the data signals is estimated using the spread data vector.

Abstract translation: 码分多址基站用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 估计频道响应。 使用估计的信道响应来确定互相关矩阵。 选择互相关矩阵的子块。 确定子块的Cholesky因子。 Cholesky因子得到延长。 扩展数据向量使用扩展的Cholesky因子，信道响应的版本和样本来确定。 使用扩展数据向量来估计数据信号的数据。