Multiuser detector for variable spreading factors

With different expansion factor a plurality of communication signal. Each communication comprises a chip comprises the relative code. For each communication each of the code slice and generates a pulse response rotary convolved of the chip a vector for each communication comprises generating the code piece vectors of the supporting block a supporting block in the code piece vectors of a number is based on the communication is unfolded factor assembled with a transmission response matrix the system transmission response matrix has a time of each symbol matrix the matrix comprises from each communication of a supporting block. The communication data using the system transmitting response matrix to the detecting.