Patent ID: 8315294

Claim:
An apparatus for searching for a pilot signal and optimizing reception of the pilot signal in wireless communications, comprising: a steerable antenna comprising a plurality of antenna elements; phase shifters coupled to respective antenna elements, the phase shifters configured to steer the antenna; a pseudorandom noise (PN) sequence generator, configured to generate a PN sequence as output; a modulator, configured to receive demodulated in-phase (I) and quadrature (Q) signals and modulate the I and Q signals with the output of the PN sequence generator; a first integrator configured to integrate the modulated I signal; a second integrator configured to integrate the modulated Q signal; a first squarer configured to square an output of the first integrator; a second squarer configured to square an output of the second integrator; a summer configured to add outputs of the first and second squarers; a third integrator configured to integrate an output of the summer; and a threshold circuit configured to set a plurality of thresholds and determine if an output of the third integrator exceeds at least one of the thresholds.