Configured grant timer in intra-user equipment multiplexing
According to certain embodiments, a method performed by a wireless device comprises receiving a first grant and a second grant from a network node. The first grant and the second grant are overlapping. The method comprises pre-empting a transmission for the first grant based on prioritizing a transmission for the second grant. The method comprises controlling a timer used in a hybrid automatic repeat request (HARQ) process associated with the first grant based on pre-empting the transmission for the first grant.
1. A method performed by a wireless device, the method comprising:
receiving a first grant and a second grant from a network node, wherein the first grant and the second grant are overlapping;
pre-empting a transmission for the first grant based on prioritizing a transmission for the second grant; and
controlling a timer used in a hybrid automatic repeat request (HARQ) process associated with the first grant based on pre-empting the transmission for the first grant, wherein controlling the timer comprises starting or restarting the timer when the transmission for the first grant is performed.
2. The method of claim 1 , further comprising:
performing the transmission for the second grant; and
performing the transmission for the first grant after performing the transmission for the second grant.
3. The method of claim 1 , further comprising:
receiving a retransmission allocation for the HARQ process associated with the first grant, the retransmission allocation received from the network node prior to expiry of the timer; and
performing a retransmission of data for the HARQ process associated with the first grant.
4. The method of claim 3 , further comprising:
restarting the timer in connection with performing the retransmission.
5. The method of claim 1 , further comprising:
flushing a buffer for the HARQ process associated with the first grant after expiry of the timer.
6. The method of claim 1 , wherein pre-empting the transmission for the first grant comprises stopping the wireless device from transmitting a Medium Access Control (MAC) Protocol Description Unit (PDU) previously constructed for the first grant.
7. The method of claim 1 , wherein the first grant comprises a configured grant indicating uplink resources that are available for use by the wireless device on a periodic basis; and/or
wherein the timer is a configured grant timer.
8. A wireless device, the wireless device comprising:
power supply circuitry configured to supply power to the wireless device; and
processing circuitry configured to:
receive a first grant and a second grant from a network node, wherein the first grant and the second grant are overlapping;
pre-empt a transmission for the first grant based on prioritizing a transmission for the second grant; and
control a timer used in a hybrid automatic repeat request (HARQ) process associated with the first grant based on pre-empting the transmission for the first grant, wherein to control the timer, the processing circuitry is configured to start or restart the timer when the transmission for the first grant is performed.
9. The wireless device of claim 8 , the processing circuitry further configured to:
perform the transmission for the second grant; and
perform the transmission for the first grant after performing the transmission for the second grant.
10. The wireless device of claim 8 , the processing circuitry further configured to:
receive a retransmission allocation for the HARQ process associated with the first grant, the retransmission allocation received from the network node prior to expiry of the timer; and
perform a retransmission of data for the HARQ process associated with the first grant.
11. The wireless device of claim 10 , the processing circuitry further configured to:
restart the timer in connection with performing the retransmission.
12. The wireless device of claim 8 , the processing circuitry further configured to:
flush a buffer for the HARQ process associated with the first grant after expiry of the timer.
13. The wireless device of claim 8 , wherein to pre-empt the transmission for the first grant, the processing circuitry is configured to stop the wireless device from transmitting a Medium Access Control (MAC) Protocol Description Unit (PDU) previously constructed for the first grant.
14. The wireless device of claim 8 , wherein the first grant comprises a configured grant indicating uplink resources that are available for use by the wireless device on a periodic basis and/or;
wherein the timer is a configured grant timer.
15. A method performed by a network node, the method comprising:
sending a first grant and a second grant to a wireless device, wherein the first grant and the second grant are overlapping;
receiving a transmission for the first grant from the wireless device, wherein the transmission for the first grant comprises a transmission that was previously pre-empted by a transmission for the second grant; and
determining an expected expiration of a timer used by the wireless device in a hybrid automatic repeat request (HARQ) process associated with the first grant, wherein determining the expected expiration of the timer comprises determining, based on receiving the transmission for the first grant, that the wireless device has started or restarted the timer when the transmission for the first grant is performed.
16. The method of claim 15 , further comprising:
receiving a transmission for the second grant from the wireless device prior to receiving the transmission for the first grant.
17. The method of claim 15 , further comprising:
sending a retransmission allocation for the HARQ process associated with the first grant, the retransmission allocation sent to the wireless device prior to the expected expiration of the timer; and
receiving a retransmission of data for the HARQ process associated with the first grant.
18. The method of claim 17 , further comprising:
determining, in connection with a retransmission procedure for requesting and receiving the retransmission, that the wireless device has restarted the timer.
19. A network node, the network node comprising:
power supply circuitry configured to supply power to the network node; and
processing circuitry configured to:
send a first grant and a second grant to a wireless device, wherein the first grant and the second grant are overlapping;
receive a transmission for the first grant from the wireless device, wherein the transmission for the first grant comprises a transmission that was previously pre-empted by a transmission for the second grant; and
determine an expected expiration of a timer used by the wireless device in a hybrid automatic repeat request (HARQ) process associated with the first grant, wherein to determine the expected expiration of the timer the processing circuitry is configured to determine, based on receiving the transmission for the first grant, that the wireless device has started or restarted the timer when the transmission for the first grant is performed.
20. The network node of claim 19 , the processing circuitry further configured to:
receive a transmission for the second grant from the wireless device prior to receiving the transmission for the first grant.
21. The network node of claim 19 , the processing circuitry further configured to:
send a retransmission allocation for the HARQ process associated with the first grant, the retransmission allocation sent to the wireless device prior to the expected expiration of the timer; and
receive a retransmission of data for the HARQ process associated with the first grant.
22. The network node of claim 21 , the processing circuitry further configured to:
determine, in connection with a retransmission procedure for requesting and receiving the retransmission, that the wireless device has restarted the timer.