Patent ID: 7697569

Claim:
A multi-code-set channel estimation method in a time-slot CDMA system, comprising steps of: A. performing uni-code-set channel estimations with respect to signals corresponding respectively to a plurality of code-sets, and obtaining channel estimation results respectively of the plurality of code-sets; B. extracting a maximum interference tap from the channel estimation results; C. reproducing interference components suffered respectively by response signals corresponding respectively to the plurality of code-sets from the maximum interference tap; D. canceling the interference components suffered respectively by response signals corresponding respectively to the plurality of code-sets from the maximum interference tap, and obtaining pure channel estimation results of respective code-set signals; E. determining whether a predetermined number of iterations has been performed, if so, outputting the pure channel estimation results of respective code-set signals; otherwise, taking the pure channel estimation results of respective code-set signals as the channel estimation results of respective code-sets to be processed in the next iteration, and returning to step B.