Multi-user multi-input multi-output (MU-MIMO) transmission is being provided by in the uplink of the 3GPP LTE and LTE-A standards. To minimize the interference among different antenna channels care must be exercised in channel estimation according to the property of reference signals (RSs). When user equipments (UEs) are allocated narrow transmission bands channel estimation methods may yield relatively high inter-channel interference but typical DFTand DCT-based channel estimation methods may have low complexity. Methods that have much higher computational requirements often attain better channel separation. To minimize an L1 norm of error, an MU channel estimation technique is being proposed in this paper. Linear minimum mean-square error (LMMSE) that has good numerical properties does not need second-order statistics as it yields a performance between the least-square (LS), the DFT, and the LMMSE techniques.