Patent ID: 8848764

Claim:
A method for estimating the uplink receiver channel in a wireless communication system having a transmitter and a receiver, the method comprising: providing a transmitter and an uplink receiver on the wireless system, said uplink receiver channels are calculated using a reduced complexity minimum mean squared error (MMSE) value, Ĥ red — cmplx , given by the equation: H ^ red_cmplx = R HH ⁡ ( R HH + β S ⁢ ⁢ N ⁢ ⁢ R ⁢ I ) - 1 ⁢ H ^ LS , to estimate the channel for the uplink receiver, wherein: Ĥ LS is the least squares estimate of the channel, the value R HH =E[HH*] is the frequency domain channel correlation matrix, SNR is the average signal-to-noise ratio, I is the identity matrix, and β is a constant, wherein the value R HH is generated and stored for a plurality of resource block allocations for subsequent use in channel estimation, and wherein the value of Ĥ red — cmplx is used for subsequent subframes until a different SNR estimate is received.