Techniques for coding rate and shaping rate selection for probabilistic shaping

A wireless device, comprising:

• a processing system that includes processor circuitry and memory circuitry that stores code, the processing system configured to cause the wireless device to:
• shape a set of information bits in accordance with a probabilistic shaping procedure having a shaping rate;
• encode, in accordance with a low-density parity check (LDPC) channel coding procedure associated with a base graph, a set of shaped information bits output by the probabilistic shaping procedure, wherein a coding rate of the LDPC channel coding procedure is selected based at least in part on at least one of:
• a first quantity of columns of the base graph associated with information variable nodes, a second quantity of columns of the base graph associated with a total quantity of variable nodes, or a third quantity of columns of the base graph associated with punctured variable nodes;
• modulate, to a set of constellation symbols, shaped and encoded information bits output by the LDPC channel coding procedure;
• and
• transmit one or more messages via the modulated set of constellation symbols, wherein the shaping rate is selected based at least in part on the coding rate.

A method for wireless communication at a wireless device, comprising:

• shaping a set of information bits in accordance with a probabilistic shaping procedure having a shaping rate;
• encoding, in accordance with a low-density parity check (LDPC) channel coding procedure associated with a base graph, a set of shaped information bits output by the probabilistic shaping procedure, wherein a coding rate of the LDPC channel coding procedure is selected based at least in part on at least one of:
• a first quantity of columns of the base graph associated with information variable nodes, a second quantity of columns of the base graph associated with a total quantity of variable nodes, or a third quantity of columns of the base graph associated with punctured variable nodes;
• modulating, to a set of constellation symbols, shaped and encoded information bits output by the LDPC channel coding procedure;
• and
• transmitting one or more messages via the modulated set of constellation symbols, wherein the shaping rate is selected based at least in part on the coding rate.

A wireless device for wireless communication, comprising:

• means for shaping a set of information bits in accordance with a probabilistic shaping procedure having a shaping rate;
• means for encoding, in accordance with a low-density parity check (LDPC) channel coding procedure associated with a base graph, a set of shaped information bits output by the probabilistic shaping procedure, wherein a coding rate of the LDPC channel coding procedure is selected based at least in part on at least one of:
• a first quantity of columns of the base graph associated with information variable nodes, a second quantity of columns of the base graph associated with a total quantity of variable nodes, or a third quantity of columns of the base graph associated with punctured variable nodes;
• means for modulating, to a set of constellation symbols, shaped and encoded information bits output by the LDPC channel coding procedure;
• and
• means for transmitting one or more messages via the modulated set of constellation symbols, wherein the shaping rate is selected based at least in part on the coding rate.