System and method for information scrambling in a wireless communication system
First Claim
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1. A method comprising:
- receiving a bit group representing at least a portion of a signal, wherein a total number of bits in the bit group is defined by a modulation scheme applied to the signal;
identifying a first bit of the bit group that indicates a sign of an imaginary part of the signal;
identifying a second bit of the bit group that indicates a sign of a real part of the signal; and
scrambling only the first and second bits of the bit group using a random sequence prior to wirelessly transmitting the bit group, wherein scrambling using the random sequence comprises;
generating a random sequence value for each bit of the bit group; and
ignoring the random sequence value for each bit of the bit group except the first and second bits.
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Abstract
The present disclosure relates generally to a system and method for scrambling in a wireless communication system. In one example, the method includes receiving a bit group representing at least a portion of a signal, where a total number of bits in the bit group is defined by a modulation scheme applied to the signal. A bit of the bit group is identified that indicates a sign of an imaginary part of the signal and another bit of the bit group is identified that indicates a sign of a real part of the signal. Only the two bits indicating the signs of the imaginary and real parts of the signal are scrambled using a random sequence prior to wirelessly transmitting the bit group.
20 Citations
20 Claims
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1. A method comprising:
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receiving a bit group representing at least a portion of a signal, wherein a total number of bits in the bit group is defined by a modulation scheme applied to the signal; identifying a first bit of the bit group that indicates a sign of an imaginary part of the signal; identifying a second bit of the bit group that indicates a sign of a real part of the signal; and scrambling only the first and second bits of the bit group using a random sequence prior to wirelessly transmitting the bit group, wherein scrambling using the random sequence comprises; generating a random sequence value for each bit of the bit group; and ignoring the random sequence value for each bit of the bit group except the first and second bits. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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wirelessly receiving a bit group representing at least a portion of a signal; identifying a first bit of the bit group that indicates a sign of an imaginary part of the signal; identifying a second bit of the bit group that indicates a sign of a real part of the signal; and descrambling only the first and second bits of the bit group using a random sequence that corresponds to a random sequence used to scramble only the first and second bits of the bit group prior to transmission, wherein descrambling using the random sequence comprises; generating a random sequence value for each bit of the bit group; and ignoring the random sequence value for each bit of the bit group except the first and second bits. - View Dependent Claims (9, 10, 11)
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12. A transmission system comprising:
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a modulation block configured to modulate a signal comprising a bit group for transmission; a random sequence coding block coupled to the modulation block and configured to scramble only a first bit of the bit group indicating a sign of an imaginary part and a second bit of the bit group indicating a real part of the signal using a random sequence prior to the bit group being wirelessly transmitted without scrambling the remaining bits of the signal, wherein the random sequence comprises a random sequence value generated for each bit of the bit group, and wherein the random sequence coding block is further configured to ignore the random sequence value for each bit of the bit group except the first and second bits; and transmission circuitry configured to transmit the modulated and scrambled signal via an antenna. - View Dependent Claims (13, 14, 15, 16)
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17. A receiving system comprising:
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receiving circuitry configured to receive a modulated and scrambled signal via an antenna; a demodulation block configured to demodulate the signal comprising a bit group; and a random sequence decoding block coupled to the demodulation block and configured to descramble only a first bit of the bit group indicating a sign of an imaginary part and a second bit of the bit group indicating a real part of the signal without descrambling the remaining bits of the signal, wherein the first and second bits are scrambled using a random sequence that comprises a random sequence value generated for each bit of the bit group, and wherein the random sequence value for each bit of the bit group except the first and second bits are ignored when the first and second bits are scrambled. - View Dependent Claims (18, 19, 20)
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Specification