Methods and apparatuses for handling retransmissions in a wireless telecommunications system

An apparatus comprising:

• a configured grant retransmission counter,
• a processor circuit;
• and
• a memory circuit, wherein the memory is arranged to store instructions for the processor circuit,
• wherein the processor circuit is arranged to change the configured grant retransmission counter when a new transmission of a first packet occurs,
• wherein the first packet comprises at least one transport blocks;
• wherein the processor circuit is arranged to maintain the configured grant retransmission counter unchanged if a retransmission or an incremental redundancy transmission of the first packet occurs, wherein the retransmission is due to channel failure, decoding failure, or Listen Before Talk failure;
• wherein the processor circuit is arranged to change the configured grant retransmission counter when a transmission of a second packet is transmitted, wherein the second packet is different from the first packet;
• wherein the processor circuit is arranged to change the configured grant retransmission counter by at least one if a counting criteria is performed on a transport block level or based on a number of erroneous code block group (s);
• and
• wherein the processor circuit is arranged to generate a retransmission assignment indicator signal, wherein the retransmission assignment indicator signal conveys the value of the configured grant retransmission counter or derives the criteria of which code block groups are erroneous or conveys which transport block are erroneous.

A method comprising:

• receiving a first packet from a apparatus, wherein the first packet comprises at least one transport blocks,
• wherein the apparatus comprises a configured grant retransmission counter,
• wherein the apparatus changes the configured grant retransmission counter when transmitting the first packet;
• receiving the first packet from the apparatus,
• wherein the configured grant retransmission counter is maintained in the apparatus if a retransmission or an incremental redundancy transmission of the first packet occurs,
• wherein the reception of the first packet from the apparatus is due to channel failure, decoding failure, or Listen Before Talk failure;
• receiving a second packet from the apparatus,
• wherein the second packet is different from the first packet,
• wherein the apparatus changes the configured grant retransmission counter
• wherein the apparatus changes the configured grant retransmission counter by at least one if a counting criteria is performed on a transport block level or based on a number of erroneous code block group (s);
• and
• receiving a retransmission assignment indicator signal, wherein the retransmission assignment indicator signal conveys the value of the configured grant retransmission counter or derives the criteria of which code block groups are erroneous or conveys which transport block are erroneous.

An apparatus comprising:

• a processor circuit;
• and
• a memory circuit, wherein the memory is arranged to store instructions for the processor circuit,
• wherein the processor circuit is arranged to receive a first packet from a apparatus,
• wherein the first packet comprises at least one transport blocks,
• wherein the apparatus comprises a configured grant retransmission counter,
• wherein the apparatus changes the configured grant retransmission counter when transmitting the packet,
• wherein the processor circuit is arranged to receive the first packet from the apparatus,
• wherein the configured grant retransmission counter is maintained in the apparatus if a retransmission or an incremental redundancy transmission of the first packet occurs,
• wherein the reception of the first packet from the apparatus is due to channel failure, decoding failure, or Listen Before Talk failure;
• wherein the processor circuit is arranged to receive a second packet from the apparatus,
• wherein the second packet is different from the first packet,
• wherein the apparatus changes the configured grant retransmission counter when the second packet is transmitted,
• wherein the apparatus changes the configured grant retransmission counter by at least one depending on if a counting criteria is performed on a transport block level or based on a number of erroneous code block group (s),
• wherein the processor circuit is arranged to receive a retransmission assignment indicator signal generated by the apparatus,
• wherein the retransmission assignment indicator signal conveys the value of the configured grant retransmission counter or derives the criteria of which code block groups are erroneous or conveys which transport block are erroneous.