Single-point demodulation reference for noise mitigation in 5G and 6G

A wireless transmitter configured to:

• a) transmit, using a modulation scheme comprising one or more predetermined amplitude levels, a demodulation reference and a message;
• b) wherein the demodulation reference occupies a single resource element of a resource grid;
• c) wherein the demodulation reference comprises an I-branch signal, multiplexed with an orthogonal Q-branch signal;
• d) wherein the I-branch signal comprises an I-branch amplitude modulated according to one of the predetermined amplitude levels, and the Q-branch signal comprises a Q-branch amplitude modulated according to one of the predetermined amplitude levels;
• and
• e) wherein the demodulation reference is configured to enable all of the predetermined amplitude levels to be calculated according to the I-branch amplitude and the Q-branch amplitude.

Non-transitory computer-readable media in a wireless receiver, the media containing instructions that when implemented in a computing environment cause a method to be performed, the method comprising:

• receiving a demodulation reference comprising a single resource element;
• receiving a message comprising message elements;
• determining, according to the demodulation reference, an amplitude correction and a phase correction;
• correcting the message elements according to the amplitude correction and the phase correction;
• determining, based on the demodulation reference, a reference I-branch amplitude and an orthogonal reference Q-branch amplitude;
• calculating a reference sum-signal amplitude comprising a combination of the reference I-branch amplitude and the reference Q-branch amplitude;
• calculating a reference sum-signal phase comprising a trigonometric function of a ratio of the reference Q-branch amplitude divided by the reference I-branch amplitude;
• determining the amplitude correction by comparing the reference sum-signal amplitude to a predetermined amplitude;
• and
• determining the phase correction by comparing the reference sum-signal phase to a predetermined phase.

Non-transitory computer-readable media in a wireless receiver, the media containing instructions that when implemented in a computing environment cause a method to be performed, the method comprising:

• receiving a demodulation reference comprising a single resource element;
• receiving a message comprising message elements;
• determining, according to the demodulation reference, an amplitude correction and a phase correction;
• correcting the message elements according to the amplitude correction and the phase correction;
• determining, based on a particular message element, a message I-branch amplitude and an orthogonal message Q-branch amplitude;
• calculating a message sum-signal amplitude comprising a combination of the message I-branch amplitude and the message Q-branch amplitude;
• calculating a message sum-signal phase comprising a trigonometric function of a ratio of the message Q-branch amplitude divided by the message I-branch amplitude;
• and
• calculating a corrected sum-signal amplitude according to the amplitude correction, and calculating a corrected sum-signal phase according to the phase correction.