Enhancements for retransmission due to conflicting transmissions for different services

A transmitting node comprising a wireless interface and processing circuitry configured for:

• receiving a respective positively or negatively valued acknowledgement for each code block in a group of two or more code blocks transmitted to a receiving node in a first pair of transport blocks, each transport block divided into at least two code blocks, wherein the receiver reports a negatively valued acknowledgement for each code block in which transmission to the receiver has been punctured;
• and
• in response to a negatively valued acknowledgement, retransmitting each punctured code block and providing to the receiving node a respective indication whether or not each code block in the group of code blocks is to be retransmitted, wherein for each code block that is to be retransmitted the indication also indicates whether or not the receiver should flush a soft buffer corresponding to each code block.

A method implemented in a receiving node, comprising:

• transmitting, to a transmitting node, a respective positively or negatively valued acknowledgement for each code block in a group of two or more code blocks received from the transmitting node in a first pair of transport blocks each transport block being divided into at least two code blocks, wherein a negative valued acknowledgement indicates that transmission of the respective code block is punctured and is a request for retransmission of the code block in the group of code blocks;
• receiving, from the transmitting node, retransmitted code blocks and a respective indication whether or not the transmitting node is to retransmit each code block in the group of two or more code blocks, wherein for each code block that is to be retransmitted the indication also indicates whether or not the receiver should flush a soft buffer corresponding to each code block.

A receiving node comprising a wireless interface and processing circuitry configured for:

• transmitting, to a transmitting node, a positively or negatively valued acknowledgement for each code block in a group of code blocks received from the transmitting node in a first pair of transport blocks, each transport block being divided into at least two code blocks, wherein a negative valued acknowledgement indicates that transmission to the receiving node in the respective code block is punctured, and is a request for retransmission of the punctured code block;
• receiving, from the transmitting node, retransmitted code blocks and a respective indication whether or not the transmitting node is to retransmit each code block in the group of code blocks, wherein for each code block that is to be retransmitted the indication also indicates whether or not the receiving node should flush a soft buffer corresponding to each code block.