Time frequency resource mapping for wideband systems

A second wireless device, comprising:

• one or more memories storing processor-executable code;
• and
• one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the second wireless device to:
• communicate an allocation of a set of time-frequency resources for transmission of a first codeword;
• receive, within the set of time-frequency resources, the first codeword;
• and
• process a first portion of the first codeword from resource elements of a first subband of the set of time-frequency resources in a frequency-first, time-second manner and a second portion of the first codeword from resource elements of a second subband of the set of time-frequency resources in the frequency-first, time-second manner, wherein the first portion of the first codeword comprises a contiguous portion of the first codeword that precedes the second portion of the first codeword.

A method for wireless communications at a first wireless device, comprising:

• communicating an allocation of a set of time-frequency resources for transmission of a first codeword;
• mapping, a first portion of the first codeword to resource elements of a first subband of the set of time-frequency resources in a frequency-first, time-second manner and a second portion of the first codeword to resource elements of a second subband of the set of time-frequency resources in the frequency-first, time-second manner, wherein the first portion of the first codeword comprises a contiguous portion of the first codeword that precedes the second portion of the first codeword;
• and
• transmitting, within the set of time-frequency resources, the first codeword based at least in part on the mapping.

A method for wireless communications at a second wireless device, comprising:

• communicating an allocation of a set of time-frequency resources for transmission of a first codeword;
• receiving, within the set of time-frequency resources, the first codeword;
• and
• processing a first portion of the first codeword from resource elements of a first subband of the set of time-frequency resources in a frequency-first, time-second manner and a second portion of the first codeword from resource elements of a second subband of the set of time-frequency resources in the frequency-first, time-second manner, wherein the first portion of the first codeword comprises a contiguous portion of the first codeword that precedes the second portion of the first codeword.