APPARATUS AND METHOD FOR REDUCING PAPR OF PREAMBLE SIGNAL IN DIGITAL BROADCASTING SYSTEM
First Claim
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1. A method for reducing a Peak to Average Power Ratio (PAPR) in a digital broadcasting system, comprising:
- determining reserved tones used to transmit a signal having an impulse characteristic in locations of sub-carriers that do not collide with a pilot signal of a preamble in a frame; and
transmitting the signal having the impulse characteristic through the reserved tones in a symbol period for which the preamble is transmitted.
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Abstract
A method and apparatus for reducing a Peak to Average Power Ratio (PAPR) in a digital broadcasting system are provided. Reserved tones are determined, and the determined reserved tones are used to transmit a signal having an impulse characteristic in locations of sub-carriers that do not collide with a pilot signal of a preamble in a frame. The signal having the impulse characteristic is transmitted through the reserved tones in a symbol interval for which the preamble is transmitted.
43 Citations
20 Claims
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1. A method for reducing a Peak to Average Power Ratio (PAPR) in a digital broadcasting system, comprising:
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determining reserved tones used to transmit a signal having an impulse characteristic in locations of sub-carriers that do not collide with a pilot signal of a preamble in a frame; and transmitting the signal having the impulse characteristic through the reserved tones in a symbol period for which the preamble is transmitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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2. The method of claim 1, wherein the digital broadcasting system uses Orthogonal Frequency Division Multiplexing (OFDM) as a transmission scheme, and locations of the reserved tones vary according to a Fast Fourier Transform (FFT) size.
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3. The method of claim 2, wherein when the FFT size is 8K, locations of the reserved tones are determined in accordance with the following table:
FFT mode (Number of reserved tones) Indexes of reserved tones 8K (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
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4. The method of claim 2, wherein when the FFT size is 16K, locations of the reserved tones are determined in accordance with the following table:
FFT mode (Number of reserved tones) Indexes of reserved tones 16K (144) 104, 106, 107, 109, 110, 112, 113, 115, 116, 118, 119, 121, 122, 125, 128, 131, 134, 137, 140, 143, 161, 223, 230, 398, 482, 497, 733, 809, 850, 922, 962, 1196, 1256, 1262, 1559, 1691, 1801, 1819, 1937, 2005, 2095, 2308, 2383, 2408, 2425, 2428, 2479, 2579, 2893, 2902, 3086, 3554, 4085, 4127, 4139, 4151, 4163, 4373, 4400, 4576, 4609, 4952, 4961, 5444, 5756, 5800, 6094, 6208, 6658, 6673, 6799, 7208, 7682, 8101, 8135, 8230, 8692, 8788, 8933, 9323, 9449, 9478, 9868, 10192, 10261, 10430, 10630, 10685, 10828, 10915, 10930, 10942, 11053, 11185, 11324, 11369, 11468, 11507, 11542, 11561, 11794, 11912, 11974, 11978, 12085, 12179, 12193, 12269, 12311, 12758, 12767, 12866, 12938, 12962, 12971, 13099, 13102, 13105, 13120, 13150, 13280, 13282, 13309, 13312, 13321, 13381, 13402, 13448, 13456, 13462, 13463, 13466, 13478, 13492, 13495, 13498, 13501, 13502, 13504, 13507, 13510, 13513, 13514, 13516
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5. The method of claim 2, wherein when the FFT size is 32K, locations of the reserved tones are determined in accordance with the following table:
FFT mode (Number of reserved tones) Indexes of reserved tones 32K (288) 104, 106, 107, 109, 110, 112, 113, 115, 118, 121, 124, 127, 130, 133, 136, 139, 142, 145, 148, 151, 154, 157, 160, 163, 166, 169, 172, 175, 178, 181, 184, 187, 190, 193, 196, 199, 202, 205, 208, 211, 404, 452, 455, 467, 509, 539, 568, 650, 749, 1001, 1087, 1286, 1637, 1823, 1835, 1841, 1889, 1898, 1901, 2111, 2225, 2252, 2279, 2309, 2315, 2428, 2452, 2497, 2519, 3109, 3154, 3160, 3170, 3193, 3214, 3298, 3331, 3346, 3388, 3397, 3404, 3416, 3466, 3491, 3500, 3572, 4181, 4411, 4594, 4970, 5042, 5069, 5081, 5086, 5095, 5104, 5320, 5465, 5491, 6193, 6541, 6778, 6853, 6928, 6934, 7030, 7198, 7351, 7712, 7826, 7922, 8194, 8347, 8350, 8435, 8518, 8671, 8861, 8887, 9199, 9980, 10031, 10240, 10519, 10537, 10573, 10589, 11078, 11278, 11324, 11489, 11642, 12034, 12107, 12184, 12295, 12635, 12643, 12941, 12995, 13001, 13133, 13172, 13246, 13514, 13522, 13939, 14362, 14720, 14926, 15338, 15524, 15565, 15662, 15775, 16358, 16613, 16688, 16760, 17003, 17267, 17596, 17705, 18157, 18272, 18715, 18994, 19249, 19348, 20221, 20855, 21400, 21412, 21418, 21430, 21478, 21559, 21983, 21986, 22331, 22367, 22370, 22402, 22447, 22535, 22567, 22571, 22660, 22780, 22802, 22844, 22888, 22907, 23021, 23057, 23086, 23213, 23240, 23263, 23333, 23369, 23453, 23594, 24143, 24176, 24319, 24325, 24565, 24587, 24641, 24965, 25067, 25094, 25142, 25331, 25379, 25465, 25553, 25589, 25594, 25655, 25664, 25807, 25823, 25873, 25925, 25948, 26002, 26008, 26102, 26138, 26141, 26377, 26468, 26498, 26510, 26512, 26578, 26579, 26588, 26594, 26597, 26608, 26627, 26642, 26767, 26776, 26800, 26876, 26882, 26900, 26917, 26927, 26951, 26957, 26960, 26974, 26986, 27010, 27013, 27038, 27044, 27053, 27059, 27061, 27074, 27076, 27083, 27086, 27092, 27094, 27098, 27103, 27110, 27115, 27118, 27119, 27125, 27128, 27130, 27133, 27134, 27140, 27143, 27145, 27146, 27148, 27149
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6. The method of claim 2, wherein when OFDM supports a plurality of FFT sizes, locations of the reserved tones are determined in accordance with the following table:
FFT mode (Number of reserved tones) Indexes of reserved tones
8K (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 16K (144) 104, 106, 107, 109, 110, 112, 113, 115, 116, 118, 119, 121, 122, 125, 128, 131, 134, 137, 140, 143, 161, 223, 230, 398, 482, 497, 733, 809, 850, 922, 962, 1196, 1256, 1262, 1559, 1691, 1801, 1819, 1937, 2005, 2095, 2308, 2383, 2408, 2425, 2428, 2479, 2579, 2893, 2902, 3086, 3554, 4085, 4127, 4139, 4151, 4163, 4373, 4400, 4576, 4609, 4952, 4961, 5444, 5756, 5800, 6094, 6208, 6658, 6673, 6799, 7208, 7682, 8101, 8135, 8230, 8692, 8788, 8933, 9323, 9449, 9478, 9868, 10192, 10261, 10430, 10630, 10685, 10828, 10915, 10930, 10942, 11053, 11185, 11324, 11369, 11468, 11507, 11542, 11561, 11794, 11912, 11974, 11978, 12085, 12179, 12193, 12269, 12311, 12758, 12767, 12866, 12938, 12962, 12971, 13099, 13102, 13105, 13120, 13150, 13280, 13282, 13309, 13312, 13321, 13381, 13402, 13448, 13456, 13462, 13463, 13466, 13478, 13492, 13495, 13498, 13501, 13502, 13504, 13507, 13510, 13513, 13514, 13516 32K (288) 104, 106, 107, 109, 110, 112, 113, 115, 118, 121, 124, 127, 130, 133, 136, 139, 142, 145, 148, 151, 154, 157, 160, 163, 166, 169, 172, 175, 178, 181, 184, 187, 190, 193, 196, 199, 202, 205, 208, 211, 404, 452, 455, 467, 509, 539, 568, 650, 749, 1001, 1087, 1286, 1637, 1823, 1835, 1841, 1889, 1898, 1901, 2111, 2225, 2252, 2279, 2309, 2315, 2428, 2452, 2497, 2519, 3109, 3154, 3160, 3170, 3193, 3214, 3298, 3331, 3346, 3388, 3397, 3404, 3416, 3466, 3491, 3500, 3572, 4181, 4411, 4594, 4970, 5042, 5069, 5081, 5086, 5095, 5104, 5320, 5465, 5491, 6193, 6541, 6778, 6853, 6928, 6934, 7030, 7198, 7351, 7712, 7826, 7922, 8194, 8347, 8350, 8435, 8518, 8671, 8861, 8887, 9199, 9980, 10031, 10240, 10519, 10537, 10573, 10589, 11078, 11278, 11324, 11489, 11642, 12034, 12107, 12184, 12295, 12635, 12643, 12941, 12995, 13001, 13133, 13172, 13246, 13514, 13522, 13939, 14362, 14720, 14926, 15338, 15524, 15565, 15662, 15775, 16358, 16613, 16688, 16760, 17003, 17267, 17596, 17705, 18157, 18272, 18715, 18994, 19249, 19348, 20221, 20855, 21400, 21412, 21418, 21430, 21478, 21559, 21983, 21986, 22331, 22367, 22370, 22402, 22447, 22535, 22567, 22571, 22660, 22780, 22802, 22844, 22888, 22907, 23021, 23057, 23086, 23213, 23240, 23263, 23333, 23369, 23453, 23594, 24143, 24176, 24319, 24325, 24565, 24587, 24641, 24965, 25067, 25094, 25142, 25331, 25379, 25465, 25553, 25589, 25594, 25655, 25664, 25807, 25823, 25873, 25925, 25948, 26002, 26008, 26102, 26138, 26141, 26377, 26468, 26498, 26510, 26512, 26578, 26579, 26588, 26594, 26597, 26608, 26627, 26642, 26767, 26776, 26800, 26876, 26882, 26900, 26917, 26927, 26951, 26957, 26960, 26974, 26986, 27010, 27013, 27038, 27044, 27053, 27059, 27061, 27074, 27076, 27083, 27086, 27092, 27094, 27098, 27103, 27110, 27115, 27118, 27119, 27125, 27128, 27130, 27133, 27134, 27140, 27143, 27145, 27146, 27148, 27149
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7. The method of claim 1, wherein the preamble comprises a P2 symbol that carries signaling information of a physical layer in a DVB system.
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8. The method of claim 1, wherein transmitting the signal having the impulse characteristic further comprises adding the signal having the impulse characteristic to an information signal that is transmitted through data tones in the preamble, using a gradient algorithm for PAPR reduction.
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2. The method of claim 1, wherein the digital broadcasting system uses Orthogonal Frequency Division Multiplexing (OFDM) as a transmission scheme, and locations of the reserved tones vary according to a Fast Fourier Transform (FFT) size.
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9. A transmission apparatus for reducing a Peak to Average Power Ratio (PAPR) in a digital broadcasting system, comprising:
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a tone reservation unit for determining reserved tones used to transmit a signal having an impulse characteristic in locations of sub-carriers that do not collide with a pilot signal of a preamble in a frame; and a transmission unit for transmitting the signal having the impulse characteristic through the reserved tones in a symbol period for which the preamble is transmitted. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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10. The transmission apparatus of claim 9, wherein the digital broadcasting system uses Orthogonal Frequency Division Multiplexing (OFDM) as a transmission scheme, and locations of the reserved tones vary according to a Fast Fourier Transform (FFT) size.
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11. The transmission apparatus of claim 10, wherein when the FFT size is 8K, locations of the reserved tones are determined in accordance with the following table:
FFT mode (Number of reserved tones) Indexes of reserved tones 8K (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
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12. The transmission apparatus of claim 10, wherein when the FFT size is 16K, locations of the reserved tones are determined in accordance with the following table:
FFT mode (Number of reserved tones) Indexes of reserved tones 16K (144) 104, 106, 107, 109, 110, 112, 113, 115, 116, 118, 119, 121, 122, 125, 128, 131, 134, 137, 140, 143, 161, 223, 230, 398, 482, 497, 733, 809, 850, 922, 962, 1196, 1256, 1262, 1559, 1691, 1801, 1819, 1937, 2005, 2095, 2308, 2383, 2408, 2425, 2428, 2479, 2579, 2893, 2902, 3086, 3554, 4085, 4127, 4139, 4151, 4163, 4373, 4400, 4576, 4609, 4952, 4961, 5444, 5756, 5800, 6094, 6208, 6658, 6673, 6799, 7208, 7682, 8101, 8135, 8230, 8692, 8788, 8933, 9323, 9449, 9478, 9868, 10192, 10261, 10430, 10630, 10685, 10828, 10915, 10930, 10942, 11053, 11185, 11324, 11369, 11468, 11507, 11542, 11561, 11794, 11912, 11974, 11978, 12085, 12179, 12193, 12269, 12311, 12758, 12767, 12866, 12938, 12962, 12971, 13099, 13102, 13105, 13120, 13150, 13280, 13282, 13309, 13312, 13321, 13381, 13402, 13448, 13456, 13462, 13463, 13466, 13478, 13492, 13495, 13498, 13501, 13502, 13504, 13507, 13510, 13513, 13514, 13516
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13. The transmission apparatus of claim 10, wherein when the FFT size is 32K, locations of the reserved tones are determined in accordance with the following table:
FFT mode (Number of reserved tones) Indexes of reserved tones 32K (288) 104, 106, 107, 109, 110, 112, 113, 115, 118, 121, 124, 127, 130, 133, 136, 139, 142, 145, 148, 151, 154, 157, 160, 163, 166, 169, 172, 175, 178, 181, 184, 187, 190, 193, 196, 199, 202, 205, 208, 211, 404, 452, 455, 467, 509, 539, 568, 650, 749, 1001, 1087, 1286, 1637, 1823, 1835, 1841, 1889, 1898, 1901, 2111, 2225, 2252, 2279, 2309, 2315, 2428, 2452, 2497, 2519, 3109, 3154, 3160, 3170, 3193, 3214, 3298, 3331, 3346, 3388, 3397, 3404, 3416, 3466, 3491, 3500, 3572, 4181, 4411, 4594, 4970, 5042, 5069, 5081, 5086, 5095, 5104, 5320, 5465, 5491, 6193, 6541, 6778, 6853, 6928, 6934, 7030, 7198, 7351, 7712, 7826, 7922, 8194, 8347, 8350, 8435, 8518, 8671, 8861, 8887, 9199, 9980, 10031, 10240, 10519, 10537, 10573, 10589, 11078, 11278, 11324, 11489, 11642, 12034, 12107, 12184, 12295, 12635, 12643, 12941, 12995, 13001, 13133, 13172, 13246, 13514, 13522, 13939, 14362, 14720, 14926, 15338, 15524, 15565, 15662, 15775, 16358, 16613, 16688, 16760, 17003, 17267, 17596, 17705, 18157, 18272, 18715, 18994, 19249, 19348, 20221, 20855, 21400, 21412, 21418, 21430, 21478, 21559, 21983, 21986, 22331, 22367, 22370, 22402, 22447, 22535, 22567, 22571, 22660, 22780, 22802, 22844, 22888, 22907, 23021, 23057, 23086, 23213, 23240, 23263, 23333, 23369, 23453, 23594, 24143, 24176, 24319, 24325, 24565, 24587, 24641, 24965, 25067, 25094, 25142, 25331, 25379, 25465, 25553, 25589, 25594, 25655, 25664, 25807, 25823, 25873, 25925, 25948, 26002, 26008, 26102, 26138, 26141, 26377, 26468, 26498, 26510, 26512, 26578, 26579, 26588, 26594, 26597, 26608, 26627, 26642, 26767, 26776, 26800, 26876, 26882, 26900, 26917, 26927, 26951, 26957, 26960, 26974, 26986, 27010, 27013, 27038, 27044, 27053, 27059, 27061, 27074, 27076, 27083, 27086, 27092, 27094, 27098, 27103, 27110, 27115, 27118, 27119, 27125, 27128, 27130, 27133, 27134, 27140, 27143, 27145, 27146, 27148, 27149
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14. The transmission apparatus of claim 10, wherein when OFDM supports a plurality of FFT sizes, locations of the reserved tones are determined in accordance with the following table:
FFT mode (Number of reserved tones) Indexes of reserved tones 8K (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 16K (144) 104, 106, 107, 109, 110, 112, 113, 115, 116, 118, 119, 121, 122, 125, 128, 131, 134, 137, 140, 143, 161, 223, 230, 398, 482, 497, 733, 809, 850, 922, 962, 1196, 1256, 1262, 1559, 1691, 1801, 1819, 1937, 2005, 2095, 2308, 2383, 2408, 2425, 2428, 2479, 2579, 2893, 2902, 3086, 3554, 4085, 4127, 4139, 4151, 4163, 4373, 4400, 4576, 4609, 4952, 4961, 5444, 5756, 5800, 6094, 6208, 6658, 6673, 6799, 7208, 7682, 8101, 8135, 8230, 8692, 8788, 8933, 9323, 9449, 9478, 9868, 10192, 10261, 10430, 10630, 10685, 10828, 10915, 10930, 10942, 11053, 11185, 11324, 11369, 11468, 11507, 11542, 11561, 11794, 11912, 11974, 11978, 12085, 12179, 12193, 12269, 12311, 12758, 12767, 12866, 12938, 12962, 12971, 13099, 13102, 13105, 13120, 13150, 13280, 13282, 13309, 13312, 13321, 13381, 13402, 13448, 13456, 13462, 13463, 13466, 13478, 13492, 13495, 13498, 13501, 13502, 13504, 13507, 13510, 13513, 13514, 13516 32K (288) 104, 106, 107, 109, 110, 112, 113, 115, 118, 121, 124, 127, 130, 133, 136, 139, 142, 145, 148, 151, 154, 157, 160, 163, 166, 169, 172, 175, 178, 181, 184, 187, 190, 193, 196, 199, 202, 205, 208, 211, 404, 452, 455, 467, 509, 539, 568, 650, 749, 1001, 1087, 1286, 1637, 1823, 1835, 1841, 1889, 1898, 1901, 2111, 2225, 2252, 2279, 2309, 2315, 2428, 2452, 2497, 2519, 3109, 3154, 3160, 3170, 3193, 3214, 3298, 3331, 3346, 3388, 3397, 3404, 3416, 3466, 3491, 3500, 3572, 4181, 4411, 4594, 4970, 5042, 5069, 5081, 5086, 5095, 5104, 5320, 5465, 5491, 6193, 6541, 6778, 6853, 6928, 6934, 7030, 7198, 7351, 7712, 7826, 7922, 8194, 8347, 8350, 8435, 8518, 8671, 8861, 8887, 9199, 9980, 10031, 10240, 10519, 10537, 10573, 10589, 11078, 11278, 11324, 11489, 11642, 12034, 12107, 12184, 12295, 12635, 12643, 12941, 12995, 13001, 13133, 13172, 13246, 13514, 13522, 13939, 14362, 14720, 14926, 15338, 15524, 15565, 15662, 15775, 16358, 16613, 16688, 16760, 17003, 17267, 17596, 17705, 18157, 18272, 18715, 18994, 19249, 19348, 20221, 20855, 21400, 21412, 21418, 21430, 21478, 21559, 21983, 21986, 22331, 22367, 22370, 22402, 22447, 22535, 22567, 22571, 22660, 22780, 22802, 22844, 22888, 22907, 23021, 23057, 23086, 23213, 23240, 23263, 23333, 23369, 23453, 23594, 24143, 24176, 24319, 24325, 24565, 24587, 24641, 24965, 25067, 25094, 25142, 25331, 25379, 25465, 25553, 25589, 25594, 25655, 25664, 25807, 25823, 25873, 25925, 25948, 26002, 26008, 26102, 26138, 26141, 26377, 26468, 26498, 26510, 26512, 26578, 26579, 26588, 26594, 26597, 26608, 26627, 26642, 26767, 26776, 26800, 26876, 26882, 26900, 26917, 26927, 26951, 26957, 26960, 26974, 26986, 27010, 27013, 27038, 27044, 27053, 27059, 27061, 27074, 27076, 27083, 27086, 27092, 27094, 27098, 27103, 27110, 27115, 27118, 27119, 27125, 27128, 27130, 27133, 27134, 27140, 27143, 27145, 27146, 27148, 27149
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15. The transmission apparatus of claim 9, wherein the preamble comprises a P2 symbol that carries signaling information of a physical layer in a DVB system.
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16. The transmission apparatus of claim 9, wherein the transmission unit further comprises a gradient unit that adds the signal having the impulse characteristic to an information signal that is transmitted through data tones in the preamble, using a gradient algorithm for PAPR reduction.
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10. The transmission apparatus of claim 9, wherein the digital broadcasting system uses Orthogonal Frequency Division Multiplexing (OFDM) as a transmission scheme, and locations of the reserved tones vary according to a Fast Fourier Transform (FFT) size.
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17. A transmission apparatus for reducing a Peak to Average Power Ratio (PAPR) in a digital broadcasting system, comprising:
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a transmission unit for transmitting a frame in which a preamble is included; a memory for storing indexes of reserved tones used to transmit a signal having an impulse characteristic in locations of sub-carriers that do not collide with a pilot signal of the preamble; and a controller for generating the signal having the impulse characteristic according to the indexes of the reserved tones and controlling the transmission unit so as to transmit the signal having the impulse characteristic through the reserved tones in a symbol period for which the preamble is transmitted. - View Dependent Claims (18, 19, 20)
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18. The transmission apparatus of claim 17, wherein the digital broadcasting system uses Orthogonal Frequency Division Multiplexing (OFDM) as a transmission scheme, and locations of the reserved tones vary according to a Fast Fourier Transform (FFT) size.
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19. The transmission apparatus of claim 17, wherein when OFDM supports a plurality of FFT sizes, locations of the reserved tones are determined in accordance with the following table:
FFT mode (Number of reserved tones) Indexes of reserved tones
8K (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 16K (144) 104, 106, 107, 109, 110, 112, 113, 115, 116, 118, 119, 121, 122, 125, 128, 131, 134, 137, 140, 143, 161, 223, 230, 398, 482, 497, 733, 809, 850, 922, 962, 1196, 1256, 1262, 1559, 1691, 1801, 1819, 1937, 2005, 2095, 2308, 2383, 2408, 2425, 2428, 2479, 2579, 2893, 2902, 3086, 3554, 4085, 4127, 4139, 4151, 4163, 4373, 4400, 4576, 4609, 4952, 4961, 5444, 5756, 5800, 6094, 6208, 6658, 6673, 6799, 7208, 7682, 8101, 8135, 8230, 8692, 8788, 8933, 9323, 9449, 9478, 9868, 10192, 10261, 10430, 10630, 10685, 10828, 10915, 10930, 10942, 11053, 11185, 11324, 11369, 11468, 11507, 11542, 11561, 11794, 11912, 11974, 11978, 12085, 12179, 12193, 12269, 12311, 12758, 12767, 12866, 12938, 12962, 12971, 13099, 13102, 13105, 13120, 13150, 13280, 13282, 13309, 13312, 13321, 13381, 13402, 13448, 13456, 13462, 13463, 13466, 13478, 13492, 13495, 13498, 13501, 13502, 13504, 13507, 13510, 13513, 13514, 13516 32K (288) 104, 106, 107, 109, 110, 112, 113, 115, 118, 121, 124, 127, 130, 133, 136, 139, 142, 145, 148, 151, 154, 157, 160, 163, 166, 169, 172, 175, 178, 181, 184, 187, 190, 193, 196, 199, 202, 205, 208, 211, 404, 452, 455, 467, 509, 539, 568, 650, 749, 1001, 1087, 1286, 1637, 1823, 1835, 1841, 1889, 1898, 1901, 2111, 2225, 2252, 2279, 2309, 2315, 2428, 2452, 2497, 2519, 3109, 3154, 3160, 3170, 3193, 3214, 3298, 3331, 3346, 3388, 3397, 3404, 3416, 3466, 3491, 3500, 3572, 4181, 4411, 4594, 4970, 5042, 5069, 5081, 5086, 5095, 5104, 5320, 5465, 5491, 6193, 6541, 6778, 6853, 6928, 6934, 7030, 7198, 7351, 7712, 7826, 7922, 8194, 8347, 8350, 8435, 8518, 8671, 8861, 8887, 9199, 9980, 10031, 10240, 10519, 10537, 10573, 10589, 11078, 11278, 11324, 11489, 11642, 12034, 12107, 12184, 12295, 12635, 12643, 12941, 12995, 13001, 13133, 13172, 13246, 13514, 13522, 13939, 14362, 14720, 14926, 15338, 15524, 15565, 15662, 15775, 16358, 16613, 16688, 16760, 17003, 17267, 17596, 17705, 18157, 18272, 18715, 18994, 19249, 19348, 20221, 20855, 21400, 21412, 21418, 21430, 21478, 21559, 21983, 21986, 22331, 22367, 22370, 22402, 22447, 22535, 22567, 22571, 22660, 22780, 22802, 22844, 22888, 22907, 23021, 23057, 23086, 23213, 23240, 23263, 23333, 23369, 23453, 23594, 24143, 24176, 24319, 24325, 24565, 24587, 24641, 24965, 25067, 25094, 25142, 25331, 25379, 25465, 25553, 25589, 25594, 25655, 25664, 25807, 25823, 25873, 25925, 25948, 26002, 26008, 26102, 26138, 26141, 26377, 26468, 26498, 26510, 26512, 26578, 26579, 26588, 26594, 26597, 26608, 26627, 26642, 26767, 26776, 26800, 26876, 26882, 26900, 26917, 26927, 26951, 26957, 26960, 26974, 26986, 27010, 27013, 27038, 27044, 27053, 27059, 27061, 27074, 27076, 27083, 27086, 27092, 27094, 27098, 27103, 27110, 27115, 27118, 27119, 27125, 27128, 27130, 27133, 27134, 27140, 27143, 27145, 27146, 27148, 27149
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20. The transmission apparatus of claim 17, wherein the preamble comprises a P2 symbol that carries signaling information of a physical layer in a DVB system.
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18. The transmission apparatus of claim 17, wherein the digital broadcasting system uses Orthogonal Frequency Division Multiplexing (OFDM) as a transmission scheme, and locations of the reserved tones vary according to a Fast Fourier Transform (FFT) size.
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Specification
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Current AssigneeSamsung Electronics Co. Ltd.
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Original AssigneeSamsung Electronics Co. Ltd.
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InventorsLee, Hak-Ju, Lim, Yeon-Ju, Kim, Jae-Yoel, Jeong, Hong-Sil, Kwon, Hwan-Joon, Yun, Sung-Ryul, Myung, Seho
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Application NumberUS12/431,438Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current370/210CPC Class CodesH04L 27/2618 Reduction thereof using aux...H04L 27/26522 using partial FFTs