Predictive acknowledgment feedback mechanism

A method implemented in a first communication node for communicating with a second communication node over an acknowledged connection, comprising:

• receiving an indication of timing of acknowledgment feedback;
• receiving a stream of code blocks from the second communication node, wherein each code block is associated with a check value enabling error detection and belongs to a predefined group of code blocks;
• generating an acknowledgment for the predefined group of code blocks according to the indicated timing by:
• determining a value P in dependence on the indicated timing;
• performing error detection for all but the P≥1 most recent ones of the code blocks in the predefined group of code bocks, yielding an error detection result for each code block on which the error detection is performed;
• and
• generating the acknowledgment for the predefined group of code blocks based on the error detection results;
• and
• transmitting the acknowledgment to the second communication node.

A non-transitory computer-readable storage medium storing a computer program comprising instructions that, when executed on a processing circuit of a first communication node, cause the first communication node to:

• receive an indication of timing of acknowledgment feedback;
• receive a stream of code blocks from a second communication node, wherein each code block is associated with a check value enabling error detection and belongs to a predefined group of code blocks;
• generate an acknowledgment for the predefined group of code blocks according to the indicated timing by:
• determining a value P in dependence on the indicated timing;
• performing error detection for all but the P≥1 most recent ones of the code blocks in the predefined group of code bocks, yielding an error detection result for each code block on which the error detection is performed;
• and
• generating the acknowledgment for the predefined group of code blocks based on the error detection results;
• and
• transmit the acknowledgment to the second communication node.