Data compression and channel coding techniques for variable length payloads

An apparatus for wireless communication, comprising:

• at least one transceiver;
• one or more memories comprising computer-executable instructions;
• and
• one or more processors configured to execute the computer-executable instructions to cause the apparatus to:
• receive, via the at least one transceiver, an encoded padded compressed payload, wherein:
• the encoded padded compressed payload includes a padded compressed payload;
• and
• the padded compressed payload comprises a set of information bits including compressed payload bits and padding bits;
• the encoded padded compressed payload, including the padded compressed payload, is encoded based on a Polar code;
• the Polar code includes a first set of information bit indices and a second set of frozen bit indices;
• each information bit index in the first set of information bit indices is associated with a respective level of reliability;
• demodulate the encoded padded compressed payload to obtain a first set of channel log likelihood ratios (LLRs) corresponding to bits in the set of information bits of the padded compressed payload;
• decode the encoded padded compressed payload using the set of channel LLRs and a set of prior LLRs to obtain the set of information bits of the padded compressed payload;
• remove the padding bits from the padded compressed payload to obtain the compressed payload including the compressed payload bits;
• and
• decompress the compressed payload, including the compressed payload bits, to obtain payload bits.

A method for wireless communication by a wireless node, comprising:

• obtaining a payload;
• compressing the payload using a variable length compression technique to obtain a compressed payload having compressed payload bits of a first length;
• adding padding bits to the compressed payload to obtain a padded compressed payload, wherein the padded compressed payload comprises a set of information bits that include the compressed payload bits and the padding bits;
• and
• encoding the padded compressed payload using a Polar code, wherein:
• the Polar code includes a first set of information bit indices and a second set of frozen bit indices;
• each information bit index in the first set of information bit indices is associated with a respective level of reliability;
• and
• transmitting the encoded padded compressed payload.