Patent ID: 7433390

Claim:
A wireless transmit receive unit (WTRU) comprising: an antenna system for receiving wireless signals and producing at least one sequential stream of received signal samples at a selected rate; a sequential array of N vector correlators VC[ 1 ] to VC[N], each configured for coherently accumulating L sized sets of sequential received signal samples; said vector correlators coupled with said antenna system such that for any given series of N+L−1 samples, S 1 to S N+L−1 , where the sample S 1 is to be a first element of a set processed by the first vector correlator VC[ 1 ], each vector correlator VC[i], where i=1 to N, processes respective samples S 1 to S 1+L−1 ; a sequence generator configured to selectively generate known sequences sought to be detected in received wireless signals and coupled with said vector correlators such that as each vector correlator VC[i], where i=1 to N, processes a set of L sequential samples within a series of samples S 1 to S N+L−1 , a generated element Gj of a given known sequence of L generated elements, G 0 to G L−1 , is mixed with sample S i+j in VC[i] to produce a mixed value that is coherently accumulated in VC[i]; and vector correlator accumulator control circuitry configured to selectively control an accumulated mixed value output of each vector correlator such that each vector correlator outputs an accumulated value after accumulating a selected multiple M of sets of L accumulated mixed values whereby power delay profiles (PDPs) of a series of at least N elements E 1 to E N are produced where each PDP element E i represents the coherent accumulation of M*L mixed values produced by the vector correlator VC[i], where i=1 to N.