Transmission of shaping bits within a single code block group for block-code based constellation shaping

An apparatus for wireless communication at a receiver node, comprising:

• at least one memory;
• and
• at least one processor coupled to the at least one memory and, based at least in part on information stored in the at least one memory, the at least one processor, individually or in any combination, is configured to cause the apparatus to:
• receive a code block group (CBG) including a set of one or more code blocks (CBs), the set of one or more CBs comprising unencoded information bits, encoded shaping bits, and encoded information bits that are encoded based on the encoded shaping bits and that represent information bits of a transmitter node;
• generate decoded information bits and decoded shaping bits by jointly decoding the encoded information bits and the encoded shaping bits;
• and
• estimate the information bits by encoding the decoded information bits and the decoded shaping bits.

A method of wireless communication at a transmitter node, comprising:

• generating shaping bits based on information bits for transmission in a code block group (CBG), wherein the CBG is comprised of multiple code blocks (CBs);
• generating encoded shaping bits for at least one of the multiple CBs by encoding the shaping bits using a shaping encoder;
• and
• transmitting, to a receiver node, the CBG including a first set of one or more CBs comprising encoded information bits that are encoded based on the shaping bits, unencoded information bits, and a second set of one or more CBs including the encoded shaping bits.