Patent ID: 7139336
Filing Date: 2006-11-21
Classification: H04B,H04L

Abstract:
1. A method for joint channel estimation and detection for each transmitted block in at least one wireless signal, comprising: (a) receiving each block included in at least one wireless signal, wherein each block includes a training sequence and data; (b) employing the training sequence in a received block to generate an initial estimate for each channel tap; (c) employing each initial estimate of each channel tap to determine at least one channel state estimate and employing each determined channel state estimate to initialize an iterative process; (d) employing the iterative process to determine an update for each channel state estimate and employing each updated channel state estimate to generate an update for each channel tap estimate, wherein generating each updated channel tap estimate is obtained via a reduced observation vector to be generated that includes updated estimates that are generated for all channel states; and (e) employing the iterative process to generate a result based on a channel model inverse in a channel state domain, wherein the result of the iterative process is employed to detect each symbol in each received block, including: