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11. 发明授权

US07133394B2 Single user detection base station 有权
公开(公告)号：US07133394B2
公开(公告)日：2006-11-07
申请号：US10080045
申请日：2002-02-21
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： H04B7/216
CPC分类号： H04B1/7105 , H04B1/71052 , H04B2201/70707 , H04L25/0212
摘要： 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.

12. 发明授权

US07110386B2 Single user detection user equipment 有权
公开(公告)号：US07110386B2
公开(公告)日：2006-09-19
申请号：US10080212
申请日：2002-02-21
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： H04B7/216
CPC分类号： H04B1/7105 , H04B1/71052 , H04B2201/70707 , H04L25/0212
摘要： 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 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.

13. 发明授权

US07110384B2 Single user detection base station 有权
公开(公告)号：US07110384B2
公开(公告)日：2006-09-19
申请号：US10080123
申请日：2002-02-21
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： H04V7/216
CPC分类号： H04B1/7105 , H04B1/71052 , H04B2201/70707 , H04L25/0212
摘要： 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.

14. 发明授权

US07768986B2 Method and apparatus for receiving plurality of data signals 有权
标题翻译：用于接收多个数据信号的方法和装置
公开(公告)号：US07768986B2
公开(公告)日：2010-08-03
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： H04B7/216
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。

15. 发明授权

US07126962B2 Single user detection user equipment 有权
公开(公告)号：US07126962B2
公开(公告)日：2006-10-24
申请号：US10080120
申请日：2002-02-21
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： H04B7/216
CPC分类号： H04B1/7105 , H04B1/71052 , H04B2201/70707 , H04L25/0212
摘要： 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.

16. 发明授权

US07126960B2 Single user detection user equipment 有权
公开(公告)号：US07126960B2
公开(公告)日：2006-10-24
申请号：US10080022
申请日：2002-02-21
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： H04B7/216
CPC分类号： H04B1/7105 , H04B1/71052 , H04B2201/70707 , H04L25/0212
摘要： 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.

17. 发明授权

US07110383B2 Single user detection 有权
公开(公告)号：US07110383B2
公开(公告)日：2006-09-19
申请号：US10052943
申请日：2001-11-07
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： H04B7/216
CPC分类号： H04B1/7105 , H04B1/71052 , H04B2201/70707 , H04L25/0212
摘要： A transmitter site transmits a plurality of data signals 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 first element of a spread data vector is determined using the combined signal samples and the estimated channel response. Using a factor from the first element determination, remaining elements of the spread data vector are determined. The data of the data signals is determined using the determined elements of the spread data vector.

18. 发明授权

US07072290B2 Single user detection base station 失效
公开(公告)号：US07072290B2
公开(公告)日：2006-07-04
申请号：US10080099
申请日：2002-02-21
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： H04J11/00
CPC分类号： H04B1/7105 , H04B1/71052 , H04B2201/70707 , H04L25/0212
摘要： 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.

19. 发明授权

US06963546B2 Multi-user detection using an adaptive combination of joint detection and successive interface cancellation 有权
标题翻译：使用联合检测和连续接口消除的自适应组合的多用户检测
公开(公告)号：US06963546B2
公开(公告)日：2005-11-08
申请号：US09783792
申请日：2001-02-15
申请人： Raj Mani Misra , Ariela Zeira , Jung-Lin Pan
发明人： Raj Mani Misra , Ariela Zeira , Jung-Lin Pan
IPC分类号： H04B1/7103 , H04B1/707 , H04B1/7093 , H04J3/00 , H04L25/03 , H04Q7/38 , H04L5/14
CPC分类号： H04B1/7105 , H04B1/71072 , H04L25/03305 , H04L25/03331
摘要： A time division duplex communication system using code division multiple access transmits a plurality of data signals over a shared spectrum in a time slot. A combined signal is received over the shared spectrum in the time slot. The plurality of data signals are grouped into a plurality of groups. The combined signal is matched filtered based on in part symbol responses associated with the data signals of one of the groups. Data from each data signal in the one group is jointly detected. An interference signal is constructed based on in part the one group detected data. The constructed interference signal is subtracted from the combined signal. Data from the other groups is detected by processing the subtracted signal.
摘要翻译：使用码分多址的时分双工通信系统在时隙中通过共享频谱发送多个数据信号。在时隙中通过共享频谱接收组合信号。多个数据信号被分组成多个组。基于与组中的一个的数据信号相关联的部分符号响应来对组合的信号进行匹配滤波。来自一组中的每个数据信号的数据被共同检测。部分地基于一组检测数据构建干扰信号。从组合信号中减去构成的干扰信号。通过处理相减信号来检测来自其他组的数据。

20. 发明申请

US20050180495A1 Single user detection circuit 有权
标题翻译：单用户检测电路
公开(公告)号：US20050180495A1
公开(公告)日：2005-08-18
申请号：US11100901
申请日：2005-04-07
申请人： Jung-Lin Pan , Parthapratim De , Ariela Zeira
发明人： Jung-Lin Pan , Parthapratim De , Ariela Zeira
IPC分类号： H04B1/707 , H04B1/7097 , H04B7/204 , H04L5/22 , H04Q7/38
CPC分类号： H04B1/71052 , H04B1/71055
摘要： A circuit for use in a receiver receives a plurality of code division multiple access data signals simultaneously. Each data signal experiences a similar channel response. The circuit receives a combined signal over the shared spectrum in a time slot. The combined signal comprises the plurality of data signals. The combined signal is sampled at a multiple of a chip rate of the combined signal. The similar channel response is estimated. A channel response matrix or a channel correlation matrix is constructed based in part on the estimated channel response. A spread data vector is determined based in part on a fast Fourier transform (FFT) decomposition of a circulant version of the channel response matrix or channel correlation matrix. The spread data vector is despread to recover data from the matrix.
摘要翻译：用于接收机的电路同时接收多个码分多址数据信号。每个数据信号经历类似的信道响应。电路在时隙中通过共享频谱接收组合信号。组合信号包括多个数据信号。组合信号以组合信号的码片速率的倍数进行采样。估计类似的信道响应。部分基于估计的信道响应构建信道响应矩阵或信道相关矩阵。部分地基于信道响应矩阵或信道相关矩阵的循环版本的快速傅里叶变换（FFT）分解来确定扩展数据向量。扩展数据向量被解扩以从矩阵中恢复数据。

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