Method and apparatus for predicting CCK subsymbols

Details Method and apparatus for predicting CCK subsymbols Method and apparatus for predicting CCK subsymbols

2007-03-06

2007-03-06

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S341000, C375S342000, C375S133000, C375S136000, C375S141000, C702S069000, C702S070000, C704S216000, C704S217000, C704S218000

Reexamination Certificate

active

10252138

ABSTRACT:
An apparatus and a method for symbol decoding of baseband data in a wireless communications network is disclosed, and specifically CCK subsymbol prediction and symbol demodulation that occurs at 5.5 Mbps or 11 Mbps. The apparatus is configured to demodulate or predict the data differently, depending on the modulation rate. If the data was modulated at 11 Mbps, the φ3rotator is rotated through each of its possible phase values and symbol correlation takes four clock cycles to complete. If the data was modulated at 5.5 Mbps, φ3is not rotated with a set value of 0 within the correlator architecture, thereby saving power and reducing symbol correlation and subsymbol prediction to a single cycle while in such transmission mode.

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