Resource availability information reporting and utilization
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may monitor a set of resources to determine a set of availability statuses for the set of resources. The UE may transmit, to a second UE, resource availability information including, for each resource of a set of resources, a respective plurality of bits indicating an availability status of the set of availability statuses. Numerous other aspects are provided.
1. A first user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
monitor a set of resources to determine a set of availability statuses for the set of resources; and
transmit, to a second UE, resource availability information including, for each resource of a set of resources, a respective plurality of bits indicating a non-binary availability status of the set of availability statuses, the non-binary availability status comprising a granularity greater than a binary availability status.
2. The first UE of claim 1 , wherein the one or more processors are further configured to:
receive, from the second UE and based at least in part on transmitting the resource availability information to the second UE, a communication that uses at least one of the set of resources.
3. The first UE of claim 1 , wherein the respective plurality of bits indicating the non-binary availability status of a resource comprises a two bit soft resource availability indication identifying whether the resource is classified as:
strongly available,
weakly available,
weakly not available, or
strongly not available.
4. The first UE of claim 1 , wherein a quantity of bits in the respective plurality of bits is set based at least in part on:
a static configuration for the first UE,
a dynamic indication from the second UE requesting transmission of the resource availability information,
a dynamic determination associated with at least one reference signal received power measurement or reference signal received quality measurement, or
a dynamic determination reported by the second UE.
5. The first UE of claim 1 , wherein a quantity of bits in the respective plurality of bits is adjusted from a set value based at least in part on:
a quantity of modulation and coding scheme layers,
a quantity of priority levels of packets,
a latency parameter,
a reliability parameter,
a quantity of occupied subchannels,
a quantity of power control levels,
a communication range parameter,
a distance between the first UE and the second UE,
a zone identifier,
a type of communication,
a channel busy ratio, or
a utilization of hybrid automatic repeat request feedback.
6. The first UE of claim 1 , wherein the one or more processors are further configured to:
determine the set of availability statuses based at least in part on a signal to interference ratio on a target link with the second UE.
7. The first UE of claim 6 , wherein the signal to interference ratio is based at least in part on a reference signal received power or a reference signal received quality measurement.
8. The first UE of claim 1 , wherein the respective plurality of bits indicating the non-binary availability status comprises an n-bit resource availability indication identifying whether the resource is classified as one of a plurality of possible availability statuses, wherein n>1.
9. The first UE of claim 1 , wherein the one or more processors are further configured to:
compress bits of the resource availability information is compressed using a source coding technique; and
wherein the one or more processors, to transmit the resource availability information, are configured to:
transmit the resource availability information based at least in part on compressing the bits of the resource availability information is compressed using the source coding technique.
10. The first UE of claim 1 , wherein the one or more processors are further configured to:
determine the set of availability statuses based at least in part on a partial sensing of the set of resources during the monitoring of the set of resources; and
wherein the one or more processors, to transmit the resource availability information, are configured to:
transmit the resource availability information based at least in part on determining the set of availability statuses.
11. A second user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
receive, from a first UE, resource availability information including, for each resource of a set of resources, a respective plurality of bits indicating a non-binary availability status of a set of availability statuses, the non-binary availability status comprising a granularity greater than a binary availability status; and
transmit, to the first UE and based at least in part on receiving the resource availability information from the first UE, a communication that uses at least one of the set of resources.
12. The second UE of claim 11 , wherein the respective plurality of bits indicating the non-binary availability status of a resource comprises a two bit soft resource availability indication identifying whether the resource is classified as:
strongly available,
weakly available,
weakly not available, or
strongly not available.
13. The second UE of claim 11 , wherein a quantity of bits in the respective plurality of bits is set based at least in part on:
a static configuration for the first UE,
a dynamic indication from the second UE requesting transmission of the resource availability information,
a dynamic determination associated with at least one reference signal received power measurement, or
a dynamic determination reported by the second UE.
14. The second UE of claim 11 , wherein a quantity of bits in the respective plurality of bits is adjusted from a set value based at least in part on:
a quantity of modulation and coding scheme layers,
a quantity of priority levels of packets,
a latency parameter,
a reliability parameter,
a quantity of occupied subchannels,
a quantity of power control levels,
a communication range parameter,
a distance between the first UE and the second UE,
a zone identifier,
a type of communication,
a channel busy ratio, or
a utilization of hybrid automatic repeat request feedback.
15. The second UE of claim 11 , wherein the one or more processors are further configured to:
determine the at least one of the set of resources based at least in part on at least one of:
a modulation and coding scheme index,
a priority level,
a latency parameter,
a reliability parameter,
a quantity of power control levels,
a communication range parameter,
a distance between the first UE and the second UE,
a type of communication,
a channel busy ratio, or
a utilization of hybrid automatic repeat request feedback.
16. The second UE of claim 11 , wherein the resource availability information is an n-bit report with a first granularity, and further comprising:
determine the at least one of the set of resources based at least in part on a mapping of the n-bit report to an m-bit report with a second granularity that is different from the first granularity.
17. The second UE of claim 16 , wherein the one or more processors are further configured to:
combine the n-bit report with the m-bit report using a logical conjunction operator or an averaging procedure; and
wherein the one or more processors, to determine the at least one of the set of resources, are configured to:
determine the at least one of the set of resources based at least in part on combining the n-bit report with the m-bit report.
18. The second UE of claim 16 , wherein the one or more processors, to determine the at least one of the set of resources, are configured to:
determine the at least one of the set of resources based at least in part on a configurable threshold ratio of available resources to total resource in a resource pool.
19. The second UE of claim 16 , wherein the one or more processors, to determine the at least one of the set of resources, are configured to:
apply a weighting to one or more of the set of resources to select the at least one of the set of resources.
20. The second UE of claim 11 , wherein the one or more processors are further configured to:
decompress bits of the resource availability information that are compressed using a source coding technique; and
wherein the one or more processors, to determine the at least one of the set of resources, are configured to:
determine the at least one of the set of resources comprises based at least in part on decompressing the bits of the resource availability information.
21. The second UE of claim 11 , wherein the respective plurality of bits indicating the non-binary availability status comprises an n-bit resource availability indication identifying whether the resource is classified as one of a plurality of possible availability statuses, wherein n>1.
22. A method of wireless communication performed by a first user equipment (UE), comprising:
monitoring a set of resources to determine a set of availability statuses for the set of resources; and
transmitting, to a second UE, resource availability information including, for each resource of a set of resources, a respective plurality of bits indicating a non-binary availability status of the set of availability statuses, the non-binary availability status comprising a granularity greater than a binary availability status.
23. The method of claim 22 , further comprising:
receiving, from the second UE and based at least in part on transmitting the resource availability information to the second UE, a communication that uses at least one of the set of resources.
24. The method of claim 22 , wherein the respective plurality of bits indicating the non-binary availability status of a resource comprises a two bit soft resource availability indication identifying whether the resource is classified as:
strongly available,
weakly available,
weakly not available, or
strongly not available.
25. The method of claim 22 , wherein a quantity of bits in the respective plurality of bits is set based at least in part on:
a static configuration for the first UE,
a dynamic indication from the second UE requesting transmission of the resource availability information,
a dynamic determination associated with at least one reference signal received power measurement or reference signal received quality measurement, or
a dynamic determination reported by the second UE.
26. The method of claim 22 , wherein a quantity of bits in the respective plurality of bits is adjusted from a set value based at least in part on:
a quantity of modulation and coding scheme layers,
a quantity of priority levels of packets,
a latency parameter,
a reliability parameter,
a quantity of occupied subchannels,
a quantity of power control levels,
a communication range parameter,
a distance between the first UE and the second UE,
a zone identifier,
a type of communication,
a channel busy ratio, or
a utilization of hybrid automatic repeat request feedback.
27. A method of wireless communication performed by a second user equipment (UE), comprising:
receiving, from a first UE, resource availability information including, for each resource of a set of resources, a respective plurality of bits indicating a non-binary availability status of a set of availability statuses, the non-binary availability status comprising a granularity greater than a binary availability status; and
transmitting, to the first UE and based at least in part on receiving the resource availability information from the first UE, a communication that uses at least one of the set of resources.
28. The method of claim 27 , wherein the respective plurality of bits indicating the non-binary availability status of a resource comprises a two bit soft resource availability indication identifying whether the resource is classified as:
strongly available,
weakly available,
weakly not available, or
strongly not available.
29. The method of claim 27 , wherein a quantity of bits in the respective plurality of bits is set based at least in part on:
a static configuration for the first UE,
a dynamic indication from the second UE requesting transmission of the resource availability information,
a dynamic determination associated with at least one reference signal received power measurement, or
a dynamic determination reported by the second UE.
30. The method of claim 27 , wherein a quantity of bits in the respective plurality of bits is adjusted from a set value based at least in part on:
a quantity of modulation and coding scheme layers,
a quantity of priority levels of packets,
a latency parameter,
a reliability parameter,
a quantity of occupied subchannels,
a quantity of power control levels,
a communication range parameter,
a distance between the first UE and the second UE,
a zone identifier,
a type of communication,
a channel busy ratio, or
a utilization of hybrid automatic repeat request feedback.