Patent ID: 7535979

Claim:
A method for performing channel estimation for each transmit antenna-receive antenna pair in a block transmission system, the method comprising the steps of: a. estimating at least one first delay profile for each receive antenna corresponding to at least one first transmit antenna of a transmitter, the pilot density of the at least one first transmit antenna being significantly higher among a plurality of transmit antennas of the transmitter; b. estimating at least one desired delay profile for each receive antenna corresponding to each remaining transmit antenna of the transmitter based on the at least first delay profile, each remaining transmit antenna having pilot density lesser than the at least one first transmit antenna; and c. estimating the channel response of each receive antenna corresponding to each remaining transmit antenna based on the corresponding desired delay profile; whereby, the delay spread of the channels corresponding to the remaining transmit antennas that can be estimated is extended to that of the at least one first transmit antenna.