US 2012/0269248 A1 · METHOD AND APPARATUS OF DETECTING SIGNAL BASED ON MINIMUM MEAN SQUARE ERROR IN MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM

Abstract

A receiver in a multiple-input multiple-output (MIMO) system is provided. The receiver includes a channel estimator estimating a channel based on a receiving signal, a minimum mean square error (MMSE) based reciprocal log likelihood ratio (R-LLR) calculator connected with the channel estimator and calculating an R-LLR based on the receiving signal and the estimated channel, and a channel decoder connected with the MMSE based R-LLR calculator and decoding the channel and the receiving signal based on the calculated R-LLR, wherein the R-LLR is calculated based on the reciprocity.

Claims16

Dependent claims

A receiver in a multiple-input multiple-output (MIMO) system, the receiver comprising:

a channel estimator configured for estimating a channel based on a receive signal;
a minimum mean square error(MMSE) based reciprocal log likelihood ratio (R-LLR) calculator, coupled to the channel estimator, and configured for calculating an R-LLR based on the receive signal and the estimated channel;
and
a channel decoder, coupled to the MMSE based R-LLR calculator, and configured for decoding the channel and the receive signal based on the calculated R-LLR,
wherein the R-LLR is calculated based on the reciprocity.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/453,464Filed 23 Apr 2012

Priority

KR 10-2011-003760722 Apr 2011

Published

25 Oct 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04L 25/03318
Arrangements specific to the provision of output signals: provision of soft decisions
H04B 7/0854
Joint weighting: using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
H04L 25/03891
Shaping networks in transmitter or receiver, e.g. adaptive shaping networks: spatial equalizers
H04L 25/067
DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection: providing soft decisions, i.e.…

Method and apparatus of detecting signal based on minimum mean square error in multiple input multiple output system

Life of this patent

Method and apparatus of detecting signal based on minimum mean square error in multiple input multiple output system

Life of this patent

Abstract

Claims16