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Received communication signal processing methods and components for wireless communication equipment

  • US 20040242181A1
  • Filed: 03/05/2004
  • Published: 12/02/2004
  • Est. Priority Date: 03/05/2003
  • Status: Active Grant
First Claim
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1. A wireless transmit receive unit (WTRU) for use in a wireless communication system 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, S1 to SN+L-1, where the sample S1 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 Si to Si+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 S1 to SN+L-1, a generated element Gj of a given known sequence of L generated elements, G0 to GL-1, is mixed with sample Si+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 E1 to EN are produced where each PDP element Ei represents the coherent accumulation of M*L mixed values produced by the vector correlator VC[i], where i=1 to N.

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