A method for signaling preamble structure parameters is provided. A bootstrap symbol is generated that indicates a preamble structure value. The preamble structure value indicates one of a plurality of different combinations of the preamble structure parameters of a preamble that follows the bootstrap symbol. The preamble includes a first part and a second part. A transmission frame that includes the bootstrap symbol, the preamble, and a data payload is generated. The transmission frame is output for transmission. Further, one of the preamble structure parameters is a forward error correction mode for the first part of the preamble.