Patent ID: 7443828
Filing Date: 2008-10-28
Classification: H04B

Abstract:
1. A receiver configured to receive a plurality of communication signals having differing spreading factors, each communication having an associated code comprising chips, comprising: a construct system response block for each chip of each communication, configured to produce a vector of that chip convolved with an impulse response; a rearrangement processor for each communication, configured to produce support blocks comprising the chip vectors, a number of the chip vectors in a support block based on that communication's spreading factor, configured to assemble a system response matrix having symbol sub-matrices, each symbol sub-matrix comprising a support block from each communication, wherein the chip vectors are column vectors and wherein a height in chips of each support block is a number of a maximum spreading factor plus a length of the impulse response less one; and a multi-user detector configured to detect data of the communications using the system response matrix.