Patent ID: 7373130

Claim:
A method of interference suppression in a receiver in a wireless network that utilizes training sequences for synchronization and channel estimation, wherein the training sequence of an interfering channel overlaps the training sequence of a desired channel to cause degraded channel estimation, said method comprising the steps of: generating channel estimates for a carrier part of a received signal: generating residual signals where the carrier parts have been removed from the received signal; generating noise covariance matrix estimates for interferer channel estimate candidates; selecting carrier and interferer channel estimates having the lowest energy in the covariance matrix; explicitly generating the selected interferer channel estimate; selecting the carrier channel estimate with the lowest energy in the residual signal; and refining the carrier channel estimate by: generating residual signals where the interferer parts have been removed; generating channel estimates for the carrier part of the residual signal; generating residual signals where the carrier and interferer parts have been removed; and, selecting the carrier channel estimate with the lowest energy in the residual signal.