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Cluster path processor time alignment for signal suppression/separation in a wireless device

  • US 20080075216A1
  • Filed: 03/29/2007
  • Published: 03/27/2008
  • Est. Priority Date: 09/21/2006
  • Status: Active Grant
First Claim
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1. A method for operating a Radio Frequency (RF) receiver to process a composite information signal having a first information signal and a second information signal, the method comprising:

  • for a first information signal group finger array that is operable to receive a plurality of individual distinct signal paths of a first information signal cluster that is received within a duration of a corresponding delay spread;

    at a first time, receiving a timing reference signal corresponding to the first information signal and locking a delay locked loop based upon the timing reference signal;

    at the first time, establishing a delay locked loop sampling position of the first information signal group finger array based upon the timing reference signal; and

    at second and subsequent times, based upon early and late signal correlation values with the first information signal, adjusting the delay locked loop sampling position of the first information signal group finger array; and

    for a second information signal group finger array that is operable to receive a plurality of individual distinct signal paths of a second information signal cluster that is received within a duration of a corresponding delay spread;

    at the first time, determining a sampling position offset of the second information signal with respect to the first information signal;

    at the first time and subsequent times, aligning the second information signal group finger array based upon the delay locked loop sampling position and the sampling position offset.

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