Selecting a modulation scheme to mitigate specific fault types in 5G and 6G

A method for a wireless receiver to receive a message comprising message elements, each message element occupying exactly one resource element of a resource grid, the method comprising:

• a) using a modulation scheme comprising amplitude modulation multiplexed with phase modulation, the amplitude modulation according to integer Namp predetermined amplitude levels and the phase modulation according to integer Nphase predetermined phase levels;
• b) receiving a demodulation reference comprising a first resource element and a second resource element, wherein the first resource element comprises a maximum amplitude level of the Namp predetermined amplitude levels and a particular predetermined phase level of the Nphase phase levels, and wherein the second resource element comprises zero transmission;
• c) receiving the message comprising message elements;
• d) demodulating each message element by comparing an amplitude of the message element to the Namp predetermined amplitude levels and comparing a phase of the message element to the Nphase predetermined phase levels.

A method for a base station of a wireless network to communicate with a user device of the network, the method comprising:

• a) selecting a first modulation scheme comprising amplitude modulation multiplexed with phase modulation, the amplitude modulation comprising integer Namp predetermined amplitude levels and the phase modulation comprising integer Nphase predetermined phase levels;
• b) transmitting a downlink message to the user device according to the first modulation scheme;
• c) receiving, from the user device, an uplink message indicating a number or rate of faults and one or more types of the faults;
• and
• d) selecting a second modulation scheme configured to mitigate the type or types of faults indicated by the user device.