Patent ID: 7421010

Claim:
A mobile communication terminal for CDMA communication wherein a pilot signal is used for phase correction of a reception signal, comprising: a first pilot signal despreading section for despreading a first pilot signal spread with a spread code different from a spread code of a communication channel including a data signal; a second pilot signal despreading section for despreading a second pilot signal inserted in the data signal and spread with the spread code for the data signal; a first complex calculation section for performing complex calculation processing on a signal which despreading processing has been performed by said first pilot signal despreading section and outputting a result of the complex calculation processing as a first calculation processing result; a second complex calculation section for performing complex calculation processing on a signal which despreading processing has been performed by said second pilot signal despreading section and outputting a result of the complex calculation processing as a second calculation processing result; and a correction amount output section for outputting a phase correction amount for phase correction using the first calculation processing result and the second calculation processing result, wherein the correction amount output section measures first and second reception quality index values from the first and second pilot signals, respectively, calculates respective values with which the first calculation processing result and the second calculation processing result are distributed based on respective distribution ratio parameters, which the distribution ratio parameters are set on the basis of the first and second reception quality index values, and outputs first and second phase correction values respective to the distribution ratio parameters as the phase correction amount.