Wireless communications device including rake finger stage...

Details Wireless communications device including rake finger stage... Wireless communications device including rake finger stage...

2011-08-02

2011-08-02

Pham, Chi H. (Department: 2471)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S342000, C375S148000, C375S340000

Reexamination Certificate

active

07990929

ABSTRACT:
A wireless communications device may include a path searcher for detecting signal peak locations in a received spread-spectrum signal, and a RAKE finger stage. The RAKE finger stage may include a plurality of RAKE fingers for determining symbol values from the received spread-spectrum signal based upon the detected peak locations. Each RAKE finger may include at least one de-spreader for de-spreading time-staggered versions of the received spread-spectrum signal and operating at a signal rate of the received spread-spectrum signal, and a frequency corrector downstream from the at least one de-spreader comprising a phase lock loop (PLL) operating at a rate that is less than the signal rate.

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Wang et al.,Cell Search in W-CDMA, IEEE Journal on Selected Areas in Communications, vol. 18, No. 8, Aug. 2000.

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