APPARATUS AND METHOD FOR REDUCING PAPR OF PREAMBLE SIGNAL IN DIGITAL BROADCASTING SYSTEM

摘要

Methods and apparatuses are provided for reducing a Peak to Average Power Ratio (PAPR) in a digital broadcasting system. Reserved tones are determined in previously determined locations of sub-carriers that do not collide with a pilot signal of a preamble in a frame. A signal is transmitted through the reserved tones in a period for which the preamble is transmitted. If a Fast Fourier Transform (FFT) size is 8K, locations of the reserved tones are determined in accordance with a specified chart.

主权项

1. A method for reducing a Peak to Average Power Ratio (PAPR) in a digital broadcasting system, comprising:
determining reserved tones in previously determined locations of sub-carriers that do not collide with a pilot signal of a preamble in a frame; and transmitting a signal through the reserved tones in a period for which the preamble is transmitted, wherein if a Fast Fourier Transform (FFT) size is 8K, locations of the reserved tones are determined in accordance with:FFT mode(Number ofreservedtones)Indexes of reserved tones8K (72)106, 109, 110, 112, 115, 118, 133, 142, 163, 184, 206, 247,445, 461, 503, 565, 602, 656, 766, 800, 922, 1094, 1108,1199, 1258, 1726, 1793, 1939, 2128, 2714, 3185, 3365,3541, 3655, 3770, 3863, 4066, 4190, 4282, 4565, 4628,4727, 4882, 4885, 5143, 5192, 5210, 5257, 5261, 5459,5651, 5809, 5830, 5986, 6020, 6076, 6253, 6269, 6410,6436, 6467, 6475, 6509, 6556, 6611, 6674, 6685, 6689,6691, 6695, 6698, 6701