METHOD OF TRANSMITTING AND RECEIVING DIGITAL INFORMATION Russian patent published in 2017 - IPC H04L27/00 

FIELD: radio engineering, communication.

SUBSTANCE: betrays side on packet information bits are divided into blocks of K bits each, where the number of possible bit combinations in the block is M = 2^K, Each of the M combinations of bits are assigned to L QAM symbols, the values of which are determined by the points corresponding to the constellations of signals form the L harmonic signals using the obtained values of L QAM symbols are combined L harmonic signals into one baseband signal carrier frequency, amplify and transmit the baseband signal in channel, where the baseband signal is received, amplified and filtered analog receiver, from the received filtered signal L all allocated harmonic signals and their common demodulation is performed by calculating the sum of squares of the moduli of the differences between the received values of quadrature elements of L harmonic signals and M possible values of the corresponding L constellations, and each sum of squares corresponds to its combination of K transmitted bits, for which this sum is minimal, and is the most probable transmitted combination.

EFFECT: increase the noise immunity of the transmitted signals and spectral efficiency.

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