A method for receiving a broadcast signal in a receiver, the method comprising: receiving a first broadcast signal being transmitted through at least one of first and second transmission antennae and receiving a second broadcast signal being transmitted through at least one of the first and second transmission antennae, the first broadcast signal including a first frame and the second broadcast signal including a second frame, the first frame including a preamble symbol, an additional preamble symbol and data symbols, and the second frame including a preamble symbol, an additional preamble symbol and data symbols; obtaining the preamble symbol and the additional preamble symbol of the first frame from the received first broadcast signal; obtaining the preamble symbol and the additional preamble symbol of the second frame from the received second broadcast signal, wherein the preamble symbol of the first frame or the second frame includes a first prefix, a main part, and a first postfix, wherein the first prefix carries a frequency shifted version of a part of the main part while the first postfix conveys a frequency shifted version of the other part of the main part, wherein a frequency shift of f SH is applied to the first prefix and postfix, wherein the additional preamble symbol of the first frame or the second frame includes a second prefix, an additional main part, and a second postfix, wherein the second prefix carries a frequency shifted version of a part of the additional main part while the second postfix carries a frequency shifted version of the other part of the additional main part, and wherein a frequency shift of -f SH is applied to the second prefix and postfix; frequency de-interleaving the data symbols of the first frame and the data symbols of the second frame; time de-interleaving the frequency de-interleaved data symbols of the first frame and the frequency de-interleaved data symbols of the second frame; Multi-input Multi-Output, MIMO, decoding the time de-interleaved data symbols of the first frame and the time de-interleaved data symbols of the second frame based on at least the obtained preamble symbol or the obtained additional preamble symbol; and performing Forward Error Correction, FEC, decoding on Physical Pipe Layer, PLP, data of the MIMO decoded data symbols. receiving a first broadcast signal being transmitted through at least one of first and second transmission antennae and receiving a second broadcast signal being transmitted through at least one of the first and second transmission antennae, the first broadcast signal including a first frame and the second broadcast signal including a second frame, the first frame including a preamble symbol, an additional preamble symbol and data symbols, and the second frame including a preamble symbol, an additional preamble symbol and data symbols; obtaining the preamble symbol and the additional preamble symbol of the first frame from the received first broadcast signal; obtaining the preamble symbol and the additional preamble symbol of the second frame from the received second broadcast signal, wherein the preamble symbol of the first frame or the second frame includes a first prefix, a main part, and a first postfix, wherein the first prefix carries a frequency shifted version of a part of the main part while the first postfix conveys a frequency shifted version of the other part of the main part, wherein a frequency shift of f SH is applied to the first prefix and postfix, wherein the additional preamble symbol of the first frame or the second frame includes a second prefix, an additional main part, and a second postfix, wherein the second prefix carries a frequency shifted version of a part of the additional main part while the second postfix carries a frequency shifted version of the other part of the additional main part, and wherein a frequency shift of -f SH is applied to the second prefix and postfix; frequency de-interleaving the data symbols of the first frame and the data symbols of the second frame; time de-interleaving the frequency de-interleaved data symbols of the first frame and the frequency de-interleaved data symbols of the second frame; Multi-input Multi-Output, MIMO, decoding the time de-interleaved data symbols of the first frame and the time de-interleaved data symbols of the second frame based on at least the obtained preamble symbol or the obtained additional preamble symbol; and performing Forward Error Correction, FEC, decoding on Physical Pipe Layer, PLP, data of the MIMO decoded data symbols.