Resource mapping method and apparatus

An apparatus, comprising a processor and a transceiver, wherein

• the processor is configured to:
• obtain a modulation symbol, wherein the modulation symbol is generated based on M code words, and M is a positive integer greater than or equal to 1;
• and
• map the modulation symbol o a time-frequency resource in one or more mapping patterns;
• wherein
• the mapping pattern is a pattern of mapping every Q modulation symbols to one mapping unit, the mapping unit comprises F resource units, F is a positive integer greater than or equal to 1, and Q is a positive integer meeting 1≤Q≤F;
• and
• the mapping pattern comprises a sparse mapping pattern, and the sparse mapping pattern is a mapping pattern meeting F≥2 and 1≤Q<F.

An apparatus, comprising a processor and a transceiver, wherein

• the processor is configured to:
• obtain receiving symbols;
• and
• demodulate, from the obtained receiving symbols, a modulation symbol generated based on M code words, wherein M is a positive integer greater than or equal to 1;
• wherein
• the modulation symbol generated based on the M code words is mapped to a time-frequency resource in one or more mapping patterns, the mapping pattern is a pattern of mapping Q modulation symbols to a mapping unit, the mapping unit comprises F resource units, and Q and F are positive integers greater than or equal to 1;
• and
• the mapping pattern comprises a sparse mapping pattern, and the sparse mapping pattern is a mapping pattern meeting F≥2 and 1≤Q<F.