Apparatus and method for reducing peak to average power ratio in a signal
First Claim
1. A method for processing a stream of data converted into a plurality of symbols in a constellation as part of transmitting a signal, the method comprising:
- applying a symbol constellation extension projection to at least one symbol in the constellation, the symbol constellation extension projection having an outward angular region from an original position for the at least one symbol in the constellation, the outward angular region defined by a value for an angle between a first boundary and a second boundary for the outward angular region, the value for the angle determined by a selection of the constellation used as part of the transmitted signal and a code rate used for encoding the stream of data,wherein the value for the angle based on the constellation and the code rate equals the values given in the following table;
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Accused Products
Abstract
Methods and apparatuses for processing a signal that is transmitted with a reduced peak to average power ratio are described. The processing includes applying (1650) a symbol constellation extension projection to at least one symbol in the constellation, the symbol constellation extension projection having an outward angular region from an original position for the at least one symbol in the constellation, the outward angular region defined by a value for an angle between a first boundary and a second boundary for the outward angular region, the value for the angle determined by a selection of the constellation used as part of the transmitted signal and a code rate used for encoding the stream of data.
6 Citations
47 Claims
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1. A method for processing a stream of data converted into a plurality of symbols in a constellation as part of transmitting a signal, the method comprising:
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applying a symbol constellation extension projection to at least one symbol in the constellation, the symbol constellation extension projection having an outward angular region from an original position for the at least one symbol in the constellation, the outward angular region defined by a value for an angle between a first boundary and a second boundary for the outward angular region, the value for the angle determined by a selection of the constellation used as part of the transmitted signal and a code rate used for encoding the stream of data, wherein the value for the angle based on the constellation and the code rate equals the values given in the following table; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for processing a stream of data converted into a plurality of symbols in a constellation as part of transmitting a signal, comprising:
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a pre-encoder including a projection module, the projection module applying a symbol constellation extension projection to at least one symbol in the constellation, the symbol constellation extension projection having an outward angular region from an original position for the at least one symbol in the constellation, the outward angular region defined by a value for an angle between a first boundary and a second boundary for the outward angular region, the value for the angle determined by a selection of the constellation used as part of the transmitted signal and a code rate used for encoding the stream of data, wherein the value for the angle based on the constellation and the code rate equals the values given in the following table; - View Dependent Claims (19, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30, 31)
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16. A method for processing a received signal transmitted as a constellation of symbols representing a data stream, the method comprising:
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demodulating the received signal to provide an estimation of at least one symbol in the transmitted signal on an extended constellation, the extended constellation including at least one extended region formed as an outward angular sector from an original location for a symbol in the constellation, the outward angular region defined by a value for an angle between a first boundary and a second boundary for the outward angular region, the value for the angle determined by a selection of the constellation used as part of the transmitted signal and a code rate for the data stream in the signal, wherein the value for the angle based on the constellation and the code rate equals the values given in the following table; - View Dependent Claims (25, 32, 33, 34, 35, 36, 37, 38, 39)
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17. An apparatus for processing a received signal transmitted as a constellation of symbols representing a data stream that has been encoded using a code rate, the apparatus comprising:
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a demodulator that demodulates the received signal to provide an estimation of at least one symbol in the transmitted signal on an extended constellation, the extended constellation including at least one extended region formed as an outward angular sector from an original location for a symbol in the constellation, the outward angular region defined by a value for an angle between a first boundary and a second boundary for the outward angular region, the value for the angle determined by a selection of the constellation used as part of the transmitted signal and the code rate for the data stream in the signal, wherein the value for the angle based on the constellation and the code rate equals the values given in the following table; - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47)
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18. A non-transitory device readable medium containing instructions for processing a received signal transmitted as a constellation of symbols representing a data stream, comprising:
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demodulating the received signal to provide an estimation of at least one symbol in the transmitted signal on an extended constellation, the extended constellation including at least on extended region formed as an outward angular sector from an original location for a symbol in the constellation, the outward angular region defined by a value for an angle between a first boundary and a second boundary for the outward angular region, the value for the angle determined by a selection of the constellation used as part of the transmitted signal and the code rate for the data stream in the signal, wherein the value for the angle based on the constellation and the code rate equals the values given in the following table;
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Specification