Patent ID: 8984377
Filing Date: 2015-03-17
Classification: H03M

Abstract:
1. A method for stopping an iterative MAP decoding of convolutionally coded signals, the method comprising: (a) selecting an integer value k, 1≦k≦N+ν, where N is the data block length of said convolutionally coded signals and ν is the memory length of said convolutionally coded signals; (b) providing at least one MAP decoding module to perform said iterative MAP decoding of said convolutionally coded signals; (c) generating a state metric signature vector at kth time instant by said MAP decoding module during said iterative MAP decoding; (d) accumulating state metric signatures in said state metric signature vector into a stopping index variable; (e) setting a predetermined threshold; (f) comparing said stopping index variable with said predetermined threshold; and (g) stopping said iterative MAP decoding when said stopping index variable is less than said predetermined threshold.