Patent ID: 8838034

Claim:
A method of downlink interference suppression for distributed antenna system based wireless cellular communication with transmit side linear interference cancellation, including the steps of determining, by a distributed antenna system based wireless communication system, effective complex channel matrix estimates; differentially updating, by the distributed antenna system based wireless communication system, a complex transmit weight matrix in accordance with: W (n+1) =W (n) ΔW (n+1) where W (n+1) is the updated complex transmit weight matrix, W (n) is the previous complex transmit weight matrix, and ΔW (n+1) is a differential update matrix, defined by Δ W (n+1) =( E (n) ) −1 Q where E (n) is an estimated effective complex channel matrix at least partially based on the determined estimates, and Q is a predetermined desired link quality matrix.