Techniques for employing polar code in connection with nr (new radio)

An apparatus configured to be employed in a UE (User Equipment), comprising:

• a memory interface;
• and
• processing circuitry configured to:
• determine one or more thresholds for code block segmentation, wherein the one or more thresholds for code block segmentation comprise one or more of a payload threshold (Kseg) or a code rate threshold (Rseg);
• determine to perform code block segmentation based on the one or more thresholds and at least one of a current payload (K) of an information block or a current code rate (R) for the information block;
• segment the information block into a plurality of segments;
• encode each segment of the plurality of segments via a polar encoder with a code size (N);
• and
• send the one or more thresholds for code block segmentation to a memory via the memory interface.

An apparatus configured to be employed in a gNB (next generation Node B), comprising:

• a memory interface;
• and
• processing circuitry configured to:
• generate signaling indicating a CRC (Cyclic Redundancy Check) length to attach to a payload for a NR (New Radio) channel, wherein the signaling comprises one or more of NR physical layer signaling or NR higher layer signaling;
• perform list decoding on an UL (Uplink) coded block encoded via polar coding from the NR channel to obtain an information block or a segment of an information block, wherein the list decoding is performed based at least in part on an associated CRC of the polar coded block, wherein the associated CRC has the CRC length;
• and
• send the information block or the segment of the information block to a memory via the memory interface.

A non-transitory machine readable medium comprising instructions that, when executed, cause a UE (User Equipment) to:

• determine one or more thresholds for code block segmentation, wherein the one or more thresholds for code block segmentation comprise one or more of a payload threshold (Kseg) or a code rate threshold (Rseg);
• determine whether to perform code block segmentation based on the one or more thresholds and at least one of a current payload (K) of an information block or a current code rate (R) for the information block;
• segment the information block into a plurality of segments in response to a positive determination to perform code block segmentation;
• encode each segment of the plurality of segments via a polar encoder with a code size (N) in response to the positive determination to perform code block segmentation, or encode the information block via the polar encoder in response to a negative determination to perform code block segmentation;
• and
• transmit each segment of the plurality of segments via a NR (New Radio) PUCCH (Physical Uplink Control Channel) or a NR PUSCH (Physical Uplink Shared Channel).