Spinal coding based on channel capacity

An apparatus comprising a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause a receiving device to:

• identify a set of subcarriers, of a plurality of subcarriers, with a capacity metric that satisfies a threshold;
• receive, on a first set of subcarriers of the set of subcarriers, a first transmission;
• decode, according to a first mapping between the first set of subcarriers and a first set of spinal symbols of a plurality of spinal symbols, the first transmission to obtain the first set of spinal symbols;
• receive, on a second set of subcarriers, a second transmission;
• and
• decode, according to a second mapping between the second set of subcarriers and a second set of spinal symbols of the plurality of spinal symbols, the second transmission to obtain the second set of spinal symbols.

A method of wireless communication by a transmitting device, comprising:

• identifying a set of subcarriers, of a plurality of subcarriers, with a capacity metric that satisfies a threshold;
• encoding a plurality of segments of data, using a spinal coding technique, to generate a plurality of spinal symbols having a first ordering;
• performing a first transmission of a first set of spinal symbols of the plurality of spinal symbols, wherein at least a subset of the first set of spinal symbols are on a first set of subcarriers of the set of subcarriers according to the first ordering;
• and
• performing a second transmission of a second set of spinal symbols of the plurality of spinal symbols different than the first set of spinal symbols, wherein the second set of spinal symbols are on a second set of subcarriers of the set of subcarriers, and wherein the second set of spinal symbols is selected from the plurality of spinal symbols according to a second ordering that is a reverse of the first ordering.