公开(公告)号：CA2695206A1

公开(公告)日：2009-03-05

申请号：CA2695206

申请日：2008-08-28

Applicant: QUALCOMM INC

Inventor： VAN ZELST ALBERT ,  WONG BRIAN ,  VAN NEE DIDIER JOHANNES RICHARD ,  JONES IV VINCENT K ,  AWATER GEERT ARNOUT

IPC: H04B7/04 ,  H04L1/06 ,  H04L25/02

Abstract: Systems and methodologies are described that provide low-complexity soft-output detection for MIMO communication systems. Looping can be performed over a set of constellation points per spatial stream to obtain distance metrics for each of a series of transmitted streams, for which values for the other transmitted streams can be estimated using a MIMO channel matrix and a sub-optimal MIMO algorithm. Examples of MIMO algorithms that can be utilized include Per-Stream List Detection (PSLD), Lattice-Reduced Detection (LRD), and a Guided-M Algorithm. Performance can be further improved by pre-processing the MIMO channel matrix and/or by utilizing techniques for Enhanced Metric Usage (EMU).

公开(公告)号：BRPI0815790A2

公开(公告)日：2015-02-24

申请号：BRPI0815790

申请日：2008-08-28

Applicant: QUALCOMM INC

Inventor： ZELST ALBERT VAN ,  WONG BRIAN ,  NEE DIDIER JOHANNES RICHARD VAN ,  IV VINCENT K JONES ,  AWATER GEERT ARNOUT

IPC: H04B7/04 ,  H04L1/06 ,  H04L25/02

Abstract: Systems and methodologies are described that provide low-complexity soft-output detection for MIMO communication systems. Looping can be performed over a set of constellation points per spatial stream to obtain distance metrics for each of a series of transmitted streams, for which values for the other transmitted streams can be estimated using a MIMO channel matrix and a sub-optimal MIMO algorithm. Examples of MIMO algorithms that can be utilized include Per-Stream List Detection (PSLD), Lattice-Reduced Detection (LRD), and a Guided-M Algorithm. Performance can be further improved by pre-processing the MIMO channel matrix and/or by utilizing techniques for Enhanced Metric Usage (EMU).