公开(公告)号：DE1214796T1

公开(公告)日：2002-11-28

申请号：DE00904639

申请日：2000-02-02

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  LUBECKI J ,  ZEIRA ARIELA

IPC: H04B1/707

Abstract: A multiuser detector method and receiver that detects and decodes synchronous or asynchronous CDMA subchannels having different spreading factors with reduced computational complexity. The multiuser receiver is compatible with ZF-BLE, MMSE, decorrelating detectors and the like using Cholesky decomposition to minimize numeric operations. The receiver and method arranges the columns of system transmission response matrices representing the response characteristics of individual users into a total system transmission response matrix which represents a plurality of matched-filter responses for a given block of received data. The invention when used in conjunction with Cholesky decomposition reduces the number of required mathematic operations prior to parallel matched filtering.

公开(公告)号：DE60017424T2

公开(公告)日：2005-12-29

申请号：DE60017424

申请日：2000-02-02

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  LUBECKI J ,  ZEIRA ARIELA

IPC: H04B1/707

Abstract: A multiuser detector method and receiver that detects and decodes synchronous or asynchronous CDMA subchannels having different spreading factors with reduced computational complexity. The multiuser receiver is compatible with ZF-BLE, MMSE, decorrelating detectors and the like using Cholesky decomposition to minimize numeric operations. The receiver and method arranges the columns of system transmission response matrices representing the response characteristics of individual users into a total system transmission response matrix which represents a plurality of matched-filter responses for a given block of received data. The invention when used in conjunction with Cholesky decomposition reduces the number of required mathematic operations prior to parallel matched filtering.

公开(公告)号：DE60017424D1

公开(公告)日：2005-02-17

申请号：DE60017424

申请日：2000-02-02

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  LUBECKI J ,  ZEIRA ARIELA

IPC: H04B1/707

Abstract: A multiuser detector method and receiver that detects and decodes synchronous or asynchronous CDMA subchannels having different spreading factors with reduced computational complexity. The multiuser receiver is compatible with ZF-BLE, MMSE, decorrelating detectors and the like using Cholesky decomposition to minimize numeric operations. The receiver and method arranges the columns of system transmission response matrices representing the response characteristics of individual users into a total system transmission response matrix which represents a plurality of matched-filter responses for a given block of received data. The invention when used in conjunction with Cholesky decomposition reduces the number of required mathematic operations prior to parallel matched filtering.