Patent ID: 7106783
Filing Date: 2006-09-12
Classification: H04B

Abstract:
1. A method for searching multipaths of a mobile communication system, the method comprising: receiving respective inphase (I) and quadrature (Q) channel signals of a Dedicated Physical Control Channel (DPCCH) transmitted from a remote mobile station, the I and Q channel signals include symbol information and other control information; dispreading said I and Q channel signals to generate despread I and Q Channel signals; multiplying the despread I and Q signals by a pilot pattern to coherently accumulate the pilot information and coherently accumulate the other control information of each of said despread I and Q channel signals, respectively, to obtain respective coherently accumulated I and Q channel signals; calculating energy values for each of the coherently accumulated I and Q channel signals to obtain calculated energy values corresponding to the pilot information and other information; multiplying the calculated energy values corresponding to the pilot information by a variable weight and multiplying the calculated energy values corresponding to the other information by another variable weight, respectively; noncoherently accumulating the energy values multiplied by variable weights and storing the energy values; comparing the stored energy values with a periodically designated threshold to generate a comparison result; and searching timing information in a number of fingers of said communication system in order of highest to lowest energy values according to the comparison result.