Device and method for performing non-orthogonal multiplexing
First Claim
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1. A device comprising:
- circuitry configured tospread symbols with orthogonal codes into spread signals having a predetermined number of bits,modify an amplitude of the spread signals via layer coefficients, andmultiplex the amplitude modified spread signals into a layered transmit signal; and
a communication interface configured to transmit the layered transmit signal, wherein the circuitry is configured todetermine the layer coefficients based on a coefficient difference factor that is less than one, anddetermine a highest layer coefficient to be greater than a sum of a plurality of remaining lower layer coefficients.
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Abstract
A device includes circuitry configured to spread one or more symbols with one or more orthogonal codes into spread signals having a predetermined number of bits. The amplitude of the spread signals is modified via one or more layer coefficients and the spread signals are multiplexed into a layered transmit signal.
14 Citations
17 Claims
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1. A device comprising:
circuitry configured to spread symbols with orthogonal codes into spread signals having a predetermined number of bits, modify an amplitude of the spread signals via layer coefficients, and multiplex the amplitude modified spread signals into a layered transmit signal; and a communication interface configured to transmit the layered transmit signal, wherein the circuitry is configured to determine the layer coefficients based on a coefficient difference factor that is less than one, and determine a highest layer coefficient to be greater than a sum of a plurality of remaining lower layer coefficients. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A device comprising:
circuitry configured to spread symbols with orthogonal codes into spread signals having a predetermined number of bits, modify an amplitude of the spread signals via layer coefficients, and multiplex the amplitude modified spread signals into a layered transmit signal; and a communication interface configured to transmit the layered transmit signal, wherein the circuitry is configured to recover a highest received signal layer by reverse spreading a received signal with the orthogonal codes, and re-spread the highest received signal layer with the orthogonal codes and multiply a corresponding spread signal by an associated layer coefficient. - View Dependent Claims (16)
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17. A method comprising:
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spreading symbols with orthogonal codes into spread signals having a predetermined number of bits; modifying an amplitude of the spread signals via layer coefficients; and multiplexing the amplitude modified spread signals into a layered transmit signal; transmitting the layered transmit signal, wherein the layer coefficients are determined based on a coefficient difference factor that is less than one, and a highest layer coefficient to be greater than a sum of a plurality of remaining lower layer coefficients.
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Specification