Patent ID: 8396108

Claim:
A receiving system, comprising: a signal receiving unit for receiving a broadcast signal comprising a data group including mobile service data and known data sequences; a known sequence detector for detecting the known data sequences from the broadcast signal; a channel equalizer for repeating a process of updating equalization coefficients based upon the detected known data sequences, converging the updated equalization coefficients, and interpolating or extrapolating the converged equalization coefficients in order to channel equalize the mobile service data; a block decoder for performing turbo-decoding in block units on the channel-equalized mobile service data; and an error correction unit for performing error correction decoding on the turbo-decoded mobile service data in order to correct an error in the mobile service data, wherein the process of updating equalization coefficients is repeated until the equalization coefficients converge, and wherein the channel equalizer extrapolates the converged equalization coefficients and channel-equalizes the mobile service data by using the extrapolated equalization coefficient when the mobile service data are positioned outside of known data sections.