Early resource reservation
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine whether sufficient resources are available to perform a transmission in a current slot. The UE may transmit the transmission in the current slot, transmit an early reservation signal for a future resource, or determine whether sufficient resources are available to perform the transmission in a subsequent slot based at least in part on a probability-based determination and based at least in part on whether sufficient resources are available to perform the transmission in the current slot. Numerous other aspects are provided.
1. A method of wireless communication performed by a user equipment (UE), comprising:
determining whether sufficient resources are available to perform a transmission in a current slot or a subsequent slot and whether sufficient resources are available to transmit an early reservation signal for a future resource in the current slot; and
transmitting, based at least in part on whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal, at least one of:
the transmission in the current slot or the subsequent slot, or
the early reservation signal for the future resource.
2. The method of claim 1 , wherein at least one of:
the transmission is transmitted in the current slot based at least in part on a first probability,
the transmission is transmitted in the subsequent slot based at least in part on a second probability, or
the early reservation signal is transmitted based at least in part on a third probability.
3. The method of claim 2 , wherein at least one of the first probability, the second probability, or the third probability is based on at least one of:
a wait time until the subsequent slot,
a priority level of the transmission, or
a remaining delay budget associated with the transmission.
4. The method of claim 2 , wherein a sum of at least two of the first probability, the second probability, and the third probability equals one.
5. The method of claim 1 , wherein determining whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal for the future resource in the current slot comprises:
determining that there are sufficient resources available to perform the transmission in the current slot and that there are sufficient resources available to transmit the early reservation signal for the future resource in the current slot, and
wherein:
the transmission is transmitted in the current slot,
the transmission is transmitted in the subsequent slot, and
the early reservation signal is transmitted.
6. The method of claim 1 , wherein determining whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal for the future resource in the current slot comprises:
determining that there are not sufficient resources available to perform the transmission in the current slot and that there are sufficient resources available to transmit the early reservation signal for the future resource in the current slot,
wherein the early reservation signal is transmitted, and the method further comprising:
waiting until the subsequent slot for transmitting the transmission in the subsequent slot.
7. The method of claim 1 , wherein the transmission comprises a data communication.
8. The method of claim 1 , wherein the transmission is associated with a vehicle-to-anything (V2X) communication.
9. A user equipment (UE) for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
determine whether sufficient resources are available to perform a transmission in a current slot or a subsequent slot and whether sufficient resources are available to transmit an early reservation signal for a future resource in the current slot; and
transmit, based at least in part on whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal, at least one of:
the transmission in the current slot or the subsequent slot, or
the early reservation signal for the future resource.
10. The UE of claim 9 , wherein at least one of:
the transmission is transmitted in the current slot based at least in part on a first probability,
the transmission is transmitted in the subsequent slot based at least in part on a second probability, or
the early reservation signal is transmitted based at least in part on a third probability.
11. The UE of claim 10 , wherein at least one of the first probability, the second probability, or the third probability is based on at least one of:
a wait time until the subsequent slot,
a priority level of the transmission, or
a remaining delay budget associated with the transmission.
12. The UE of claim 10 , wherein a sum of at least two of the first probability, the second probability, and the third probability equals one.
13. The UE of claim 9 , wherein the one or more processors, to determine whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal for the future resource in the current slot, are configured to:
determine that there are sufficient resources available to perform the transmission in the current slot and that there are sufficient resources available to transmit the early reservation signal for the future resource in the current slot, and
wherein:
the transmission is transmitted in the current slot,
the transmission is transmitted in the subsequent slot, and
the early reservation signal is transmitted.
14. The UE of claim 9 , wherein the one or more processors, to determine whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal for the future resource in the current slot, are configured to:
determine that there are not sufficient resources available to perform the transmission in the current slot and that there are sufficient resources available to transmit the early reservation signal for the future resource in the current slot,
wherein the early reservation signal is transmitted, and the one or more processors are further configured to:
wait until the subsequent slot for transmitting the transmission in the subsequent slot.
15. The UE of claim 9 , wherein the transmission comprises a data communication.
16. The UE of claim 9 , wherein the transmission is associated with a vehicle-to-anything (V2X) communication.
17. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
determine whether sufficient resources are available to perform a transmission in a current slot or a subsequent slot and whether sufficient resources are available to transmit an early reservation signal for a future resource in the current slot; and
transmit, based at least in part on whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal, at least one of:
the transmission in the current slot or the subsequent slot, or
the early reservation signal for the future resource.
18. The non-transitory computer-readable medium of claim 17 , wherein at least one of:
the transmission is transmitted in the current slot based at least in part on a first probability,
the transmission is transmitted in the subsequent slot based at least in part on a second probability, or
the early reservation signal is transmitted based at least in part on a third probability.
19. The non-transitory computer-readable medium of claim 18 , wherein at least one of the first probability, the second probability, or the third probability is based on at least one of:
a wait time until the subsequent slot,
a priority level of the transmission, or
a remaining delay budget associated with the transmission.
20. The non-transitory computer-readable medium of claim 18 , wherein a sum of at least two of the first probability, the second probability, and the third probability equals one.
21. The non-transitory computer-readable medium of claim 17 , wherein the one or more instructions, that cause the UE to determine whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal for the future resource in the current slot, cause the UE to:
determine that there are sufficient resources available to perform the transmission in the current slot and that there are sufficient resources available to transmit the early reservation signal for the future resource in the current slot, and
wherein:
the transmission is transmitted in the current slot,
the transmission is transmitted in the subsequent slot, and
the early reservation signal is transmitted.
22. The non-transitory computer-readable medium of claim 17 , wherein the one or more instructions, that cause the UE to determine whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal for the future resource in the current slot, cause the UE to:
determine that there are not sufficient resources available to perform the transmission in the current slot and that there are sufficient resources available to transmit the early reservation signal for the future resource in the current slot,
wherein the early reservation signal is transmitted, and wherein the one or more instructions that, when executed by the one or more processors of the UE, further cause the UE to:
wait until the subsequent slot for transmitting the transmission in the subsequent slot.
23. The non-transitory computer-readable medium of claim 17 , wherein the transmission comprises a data communication.
24. The non-transitory computer-readable medium of claim 17 , wherein the transmission is associated with a vehicle-to-anything (V2X) communication.
25. An apparatus for wireless communication, comprising:
means for determining whether sufficient resources are available to perform a transmission in a current slot or a subsequent slot and whether sufficient resources are available to transmit an early reservation signal for a future resource in the current slot; and
means for transmitting, based at least in part on whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal, at least one of:
the transmission in the current slot or the subsequent slot, or
the early reservation signal for the future resource.
26. The apparatus of claim 25 , wherein at least one of:
the transmission is transmitted in the current slot based at least in part on a first probability,
the transmission is transmitted in the subsequent slot based at least in part on a second probability, or
the early reservation signal is transmitted based at least in part on a third probability.
27. The apparatus of claim 26 , wherein at least one of the first probability, the second probability, or the third probability is based on at least one of:
a wait time until the subsequent slot,
a priority level of the transmission, or
a remaining delay budget associated with the transmission.
28. The apparatus of claim 25 , wherein the means for determining whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal for the future resource in the current slot comprises:
means for determining that there are sufficient resources available to perform the transmission in the current slot and that there are sufficient resources available to transmit the early reservation signal for the future resource in the current slot, and
wherein:
the transmission is transmitted in the current slot,
the transmission is transmitted in the subsequent slot, and
the early reservation signal is transmitted.
29. The apparatus of claim 25 , wherein the means for determining whether sufficient resources are available to perform the transmission in the current slot or the subsequent slot and whether sufficient resources are available to transmit the early reservation signal for the future resource in the current slot comprises:
means for determining that there are not sufficient resources available to perform the transmission in the current slot and that there are sufficient resources available to transmit the early reservation signal for the future resource in the current slot,
wherein the early reservation signal is transmitted, and the apparatus further comprising:
means for waiting until the subsequent slot for transmitting the transmission in the subsequent slot.