公开(公告)号：WO0239610A3

公开(公告)日：2003-03-13

申请号：PCT/US0146747

申请日：2001-11-08

Applicant: INTERDIGITAL TECH CORP

Inventor： DE PARTHAPRATIM ,  ZEIRA ARIELA ,  PAN JUNG-LIN ,  MISRA RAJ MANI

IPC: H04B1/7077 ,  H04B1/707 ,  H04B1/7103 ,  H04B1/7105 ,  H04Q7/38

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

Abstract: A transmitter site transmit 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.

Abstract translation: 发射机站在码分多址通信系统中通过共享频谱发送多个数据信号。 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的第一元素。 使用来自第一元素确定的因子，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确定数据信号的数据。

公开(公告)号：WO0169801A3

公开(公告)日：2002-05-30

申请号：PCT/US0105576

申请日：2001-02-21

Applicant: INTERDIGITAL TECH CORP

Inventor： MISRA RAJ MANI ,  PAN JUNG-LIN ,  ZEIRA ARIELA

IPC: H04B1/7103 ,  H04B1/707 ,  H04B1/7093 ,  H04J3/00 ,  H04L25/03 ,  H04Q7/38

CPC classification number: H04B1/7105 ,  H04B1/71072 ,  H04L25/03305 ,  H04L25/03331

Abstract: 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 symbol responses associated with the data signals of one of the groups. Data from each data signal in this one group is jointly detected. An interference signal is constructed based on the detected data, of this one group. The constructed interference signal is subtracted from the combined signal. Data from the other groups is detected by processing the subtracted signal.

Abstract translation: 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符号响应来对组合信号进行匹配滤波。 来自该组中的每个数据信号的数据被共同检测。 基于该组的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。

公开(公告)号：AT517472T

公开(公告)日：2011-08-15

申请号：AT06009963

申请日：2001-11-08

Applicant: INTERDIGITAL TECH CORP

Inventor： DE PARTHAPRATIM ,  ZEIRA ARIELA ,  PAN JUNG-LIN ,  MISRA RAJ MANI

IPC: H04B1/707 ,  H04B1/7077 ,  H04B1/7103 ,  H04B1/7105 ,  H04Q7/38

Abstract: The present invention provides a method for use in receiving a plurality of data signals transmitted from a transmitter site over a shared spectrum in a code division multiple access communication system, each transmitted data signal experiencing a similar channel response, where a combined signal of the transmitted data signals is received over the shared spectrum; the combined signal is sampled at a multiple of a chip rate of the transmitted data signals; and a channel response for the combined signal is estimated at the multiple of the chip rate; the method characterized by determining a first element of a spread data vector using the combined signal samples and the estimated channel response; using a factor from the first element determination to determine remaining elements of the spread data vector; and estimating data of the data signals using the determined elements of the spread data vector.

公开(公告)号：DE60038063D1

公开(公告)日：2008-03-27

申请号：DE60038063

申请日：2000-09-14

Applicant: INTERDIGITAL TECH CORP

Inventor： MISRA RAJ MANI ,  ZEIRA ARIELA

IPC: H04L5/14 ,  G06F17/16 ,  H04B1/707 ,  H04Q7/22

Abstract: A plurality of transmitted data signals are received at a receiver. The receiver measures a channel response associated with the transmitted data signals. A system response is determined. The system response is expanded to be piecewise orthogonal. The received data signals data is retrieved based on in part the expanded system response.

公开(公告)号：NO20032046A

公开(公告)日：2003-07-07

申请号：NO20032046

申请日：2003-05-07

Applicant: INTERDIGITAL TECH CORP

Inventor： ZEIRA ARIELA ,  MISRA RAJ MANI ,  PAN JUNG-LIN ,  DE PARTHAPRATIM

IPC: H04B1/7077 ,  H04B1/707 ,  H04B1/7103 ,  H04B1/7105 ,  H04Q7/38

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

公开(公告)号：HK1045612A1

公开(公告)日：2002-11-29

申请号：HK02106956

申请日：2002-09-24

Applicant: INTERDIGITAL TECH CORP

Inventor： MISRA RAJ MANI ,  ZEIRA ARIELA

IPC: H04L5/14 ,  G06F17/16 ,  H04B1/707 ,  H04Q7/22 ,  H04B ,  G06F

Abstract: A plurality of transmitted data signals are received at a receiver. The receiver measures a channel response associated with the transmitted data signals. A system response is determined. The system response is expanded to be piecewise orthogonal. The received data signals data is retrieved based on in part the expanded system response.

公开(公告)号：NO20024530L

公开(公告)日：2002-11-19

申请号：NO20024530

申请日：2002-09-20

Applicant: INTERDIGITAL TECH CORP

Inventor： MISRA RAJ MANI ,  TEAL GREGORY S

IPC: H04B1/707 ,  H04J13/00 ,  H04J13/10 ,  H04J13/16

Abstract: A spreading system and method for CDMA applications that requires fewer integer multiplications. User data is spread using real or complex integer based spreading codes of length SF to SF max chips. At least one of the codes is of the form j n .v[n] where v[n] is a spreading code. The invention provides increased user separation using a plurality of spreading codes.

公开(公告)号：DE60038063T2

公开(公告)日：2009-02-05

申请号：DE60038063

申请日：2000-09-14

Applicant: INTERDIGITAL TECH CORP

Inventor： MISRA RAJ MANI ,  ZEIRA ARIELA

IPC: H04L5/14 ,  G06F17/16 ,  H04B1/707 ,  H04Q7/22

Abstract: A plurality of transmitted data signals are received at a receiver. The receiver measures a channel response associated with the transmitted data signals. A system response is determined. The system response is expanded to be piecewise orthogonal. The received data signals data is retrieved based on in part the expanded system response.

公开(公告)号：ES2299770T3

公开(公告)日：2008-06-01

申请号：ES04009060

申请日：2000-09-14

Applicant: INTERDIGITAL TECH CORP

Inventor： MISRA RAJ MANI ,  ZEIRA ARIELA

IPC: H04L5/14 ,  G06F17/16 ,  H04B1/707 ,  H04Q7/22

Abstract: Un equipo de usuario (UE) que comprende un receptor para recibir una pluralidad de señales de datos transmitidos en un sistema de comunicación, comprendiendo el receptor: una antena (40) para recibir las señales de datos transmitidos; un dispositivo (44) de estimación de canal para determinar una respuesta de canal para cada señal de datos recibida; caracterizado el receptor porque comprende: un dispositivo (46) de detección de uniones que tiene una entrada configurada para recibir las respuesta de canal y las señales de datos recibidas para determinar una respuesta de sistema basado en la parte de las señales de canal, expandir la respuesta del sistema para ser de segmentos rectilíneos ortogonales, y recuperar datos procedentes de las señales de datos recibidas basado en parte de la respuesta de sistema expandida.

公开(公告)号：AT386372T

公开(公告)日：2008-03-15

申请号：AT04009060

申请日：2000-09-14

Applicant: INTERDIGITAL TECH CORP

Inventor： MISRA RAJ MANI ,  ZEIRA ARIELA

IPC: H04L5/14 ,  G06F17/16 ,  H04B1/707 ,  H04Q7/22

Abstract: A plurality of transmitted data signals are received at a receiver. The receiver measures a channel response associated with the transmitted data signals. A system response is determined. The system response is expanded to be piecewise orthogonal. The received data signals data is retrieved based on in part the expanded system response.