Handling transport block-level parity check bits for interrupted transmissions

A method for wireless communications at a base station, comprising:

• receiving, from a user equipment (UE), a first subset of code blocks of a transport block, wherein transmission of the transport block is scheduled for a first set of resources;
• transmitting a message indicating a second set of resources overlapping in time with at least a portion of the first set of resources;
• determining that transmission of a second subset of code blocks of the transport block by the UE is preempted based at least in part on the message, wherein the second subset of code blocks comprises a code block comprising a set of parity check bits for the transport block;
• and
• requesting re-transmission of at least the second subset of code blocks based at least in part on the determining.

A method for wireless communications at a user equipment (UE), comprising:

• canceling transmission of a transport block comprising a plurality of code blocks, wherein a first subset of code blocks of the plurality of code blocks is encoded for transmission and a second subset of code blocks of the plurality of code blocks is unencoded for transmission based at least in part on the canceling;
• receiving a re-transmission request for a code block of the second subset of code blocks comprising a set of parity check bits for the transport block;
• modifying a processing timeline based at least in part on the second subset of code blocks being unencoded for transmission;
• encoding the second subset of code blocks for transmission based at least in part on the modified processing timeline;
• and
• transmitting the code block based at least in part on the re-transmission request and encoding the second subset of code blocks for transmission.

A method for wireless communications at a user equipment (UE), comprising:

• receiving a first grant of a first set of resources for a first uplink transmission;
• receiving a second grant of a second set of resources for a second uplink transmission, wherein the second set of resources for the second uplink transmission at least partially overlaps in time with the first set of resources for the first uplink transmission;
• canceling, based at least in part on receiving the second grant, transmission of a transport block comprising a plurality of code blocks, wherein the transport block is associated with the first uplink transmission, and wherein a first subset of code blocks of the plurality of code blocks is encoded for transmission and a second subset of code blocks of the plurality of code blocks is unencoded for transmission based at least in part on the canceling;
• receiving a third grant of a third set of resources for a third uplink transmission;
• identifying a non-overlap condition between the third set of resources and the first set of resources;
• and
• processing the third grant based at least in part on the identifying the non-overlap condition.