Reservation of radio resources for preemption in a wireless network
A wireless device receives configuration parameters including a first feedback parameter for selecting first feedback radio resources of a sidelink and a second feedback parameter for selecting second feedback radio resources of the sidelink. The wireless device may select one or more radio resources based on a sidelink control information (SCI) indication. The radio resources may be selected from one of the first feedback radio resources based on the first feedback parameter and the second feedback radio resources based on the second feedback parameter. The wireless device may further transmit a hybrid automatic repeat request (HARQ) feedback for a received sidelink transmission via the selected one or more radio resources.
1. A method comprising:
receiving, by a wireless device, configuration parameters comprising:
a first feedback parameter for selecting first feedback radio resources of a sidelink; and
a second feedback parameter for selecting second feedback radio resources of the sidelink;
selecting, based on a sidelink control information (SCI) indication, one or more radio resources from one of:
the first feedback radio resources based on the first feedback parameter; and
the second feedback radio resources based on the second feedback parameter; and
transmitting a hybrid automatic repeat request (HARQ) feedback for a received sidelink transmission via the selected one or more radio resources.
2. The method of claim 1 , wherein the selecting of the one or more radio resources comprises selecting the second feedback radio resources based on a priority level of the received sidelink transmission being higher than a threshold.
3. The method of claim 2 , wherein the threshold is configured by a base station or is pre-configured.
4. The method of claim 2 , further comprising determining the threshold based on a second priority level of a second sidelink transmission, wherein a second HARQ message of the second sidelink transmission reserves the selected one or more radio resources.
5. The method of claim 1 , wherein the selecting of the one or more radio resources comprises selecting the first feedback radio resources based on a priority level of the received sidelink transmission being lower than or equal to a threshold.
6. The method of claim 1 , wherein the SCI indicates, the second feedback parameter, based on a priority level of the received sidelink transmission being higher than a priority threshold.
7. The method of claim 1 , wherein the first feedback parameter comprises:
a first parameter indicating a first periodicity of the first feedback radio resources; or
a second parameter indicating a first minimum number of slots separating the sidelink transmission from the one or more radio resources.
8. The method of claim 1 , wherein the second feedback parameter comprises:
a third parameter indicating a second periodicity of the second feedback radio resources;
a fourth parameter indicating a second minimum number of slots separating the sidelink transmission from the one or more radio resources; or
a fifth parameter indicating a third number of slots separating the sidelink transmission from the one or more radio resources.
9. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive one or more configuration parameters comprising:
a first feedback parameter for selecting first feedback radio resources of a sidelink; and
a second feedback parameter for selecting second feedback radio resources of the sidelink;
select, based on a sidelink control information (SCI) indication, one or more radio resources from one of:
the first feedback radio resources based on the first feedback parameter; and
the second feedback radio resources based on the second feedback parameter; and
transmit a hybrid automatic repeat request (HARQ) feedback for a received sidelink transmission via the selected one or more radio resources.
10. The wireless device of claim 9 , wherein the selecting of the one or more radio resources comprises selecting the second feedback radio resources based on a priority level of the received sidelink transmission being higher than a threshold.
11. The wireless device of claim 10 , wherein the threshold is configured by a base station or is pre-configured.
12. The wireless device of claim 10 , wherein the instructions further cause the wireless device to determine the threshold based on a second priority level of a second sidelink transmission, wherein a second HARQ message of the second sidelink transmission reserves the selected one or more radio resources.
13. The wireless device of claim 9 , wherein the selecting of the one or more radio resources comprises selecting the first feedback radio resources based on a priority level of the received sidelink transmission being lower than or equal to a threshold.
14. The wireless device of claim 13 , wherein the first feedback parameter comprises:
a first parameter indicating a first periodicity of the first feedback radio resources; or
a second parameter indicating a first minimum number of slots separating the sidelink transmission from the one or more radio resources.
15. The wireless device of claim 9 , wherein the SCI indicates, the second feedback parameter, based on a priority level of the received sidelink transmission being higher than a priority threshold.
16. A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:
receive one or more configuration parameters comprising:
a first feedback parameter for selecting first feedback radio resources of a sidelink; and
a second feedback parameter for selecting second feedback radio resources of the sidelink;
select, based on a sidelink control information (SCI) indication, one or more radio resources from one of:
the first feedback radio resources based on the first feedback parameter; and
the second feedback radio resources based on the second feedback parameter; and
transmit a hybrid automatic repeat request (HARQ) feedback for a received sidelink transmission via the selected one or more radio resources.
17. The non-transitory computer-readable medium of claim 16 , wherein the selecting of the one or more radio resources comprises selecting the second feedback radio resources based on a priority level of the received sidelink transmission being higher than a threshold.
18. The non-transitory computer-readable medium of claim 17 , wherein the selecting of the one or more radio resources comprises selecting the first feedback radio resources based on the priority level of the received sidelink transmission being lower than or equal to the threshold.
19. The non-transitory computer-readable medium of claim 18 , wherein the threshold is configured by a base station or is pre-configured.
20. The non-transitory computer-readable medium of claim 18 , wherein the instructions further cause the wireless device to determine the threshold based on a second priority level of a second sidelink transmission, wherein a second HARQ message of the second sidelink transmission reserves the selected one or more radio resources.