Patent Document ID: 20070201539
Application ID: 11364768
Patent Flag: 0

Claim One:
1. A method for estimating a signal-to-noise ratio of a spread spectrum signal, the method comprising: receiving the spread spectrum signal in a receiver, the spread spectrum signal having an in-phase component and a quadrature component; receiving a plurality of pseudorandom noise codes from a code generator; determining a plurality of in-phase correlation results based on the in-phase component and the plurality of pseudorandom noise codes; determining a plurality of quadrature correlation results based on the quadrature component and the plurality of pseudorandom noise codes; determining a plurality of sum-of-square values based on the plurality of the in-phase correlation results and the plurality of the quadrature correlation results, the plurality of sum-of-square values having at least one peak value; detecting a peak value among the plurality of sum-of-square results, the peak value being a signal power value; determining an average of non-peak values among the plurality of sum-of-square results, the averaged non-peak values being average noise power value; and determining in a SNR estimation module a signal-to-noise ratio based on the signal power value and the average noise power value.