Identifying sidelink resources through sidelink paging
Certain aspects of the present disclosure provide a method for wireless communications between a first UE and a second UE. The method includes, at the first UE, receiving, from the second UE, a paging indication message on a sidelink channel, the paging indication message associating the first UE with one or more resources of a common resource pool that includes a plurality of resources for communication on the sidelink channel. The method further includes, based on the received paging indication message, monitoring the one or more resources for a message from the second UE.
1. A first user equipment (UE) comprising:
a memory; and
a processor coupled to the memory, the processor and memory being configured to:
receive, from a second UE, a paging indication message on a sidelink channel, the paging indication message associating the first UE with one or more resources of a common resource pool, separate from a paging pool, comprising a plurality of resources for communication on the sidelink channel; and
based on receiving the paging indication message, monitor the one or more resources for a message from the second UE.
2. The first UE of claim 1 , wherein the paging indication message includes a value that maps to the one or more resources, and wherein the processor and memory are further configured to determine the one or more resources based on the value.
3. The first UE of claim 2 , wherein to determine the one or more resources is further based on an identifier of the first UE, wherein the paging indication message is addressed to the identifier of the first UE.
4. The first UE of claim 1 , wherein the paging indication message is received in one or more second resources, and wherein the processor and memory are further configured to determine the one or more resources based on the one or more second resources, wherein to determine the one or more resources is based on a mapping of resources used for paging indication messages to the plurality of resources of the common resource pool.
5. The first UE of claim 1 , wherein the one or more resources comprise one or more time-frequency resources.
6. The first UE of claim 1 , wherein the processor and memory are further configured to:
receive a second paging indication message on the sidelink channel from a third UE, the second paging indication message associating the first UE with one or more other resources of the common resource pool; and
based on receiving the second paging indication message, monitor the one or more other resources for a second message from the third UE.
7. The first UE of claim 1 , wherein the message indicates an event detected by the second UE.
8. A method for wireless communication between a first user equipment (UE) and a second UE, comprising, at the first UE:
receiving, from the second UE, a paging indication message on a sidelink channel, the paging indication message associating the first UE with one or more resources of a common resource pool, separate from a paging pool, comprising a plurality of resources for communication on the sidelink channel; and
based on receiving the paging indication message, monitoring the one or more resources for a message from the second UE.
9. The method of claim 8 , wherein the paging indication message includes a value that maps to the one or more resources and further comprising determining, at the first UE, the one or more resources based on the value.
10. The method of claim 9 , wherein determining the one or more resources is further based on an identifier of the first UE, wherein the paging indication message is addressed to the identifier of the first UE.
11. The method of claim 8 , wherein the paging indication message is received in one or more second resources, and further comprising determining, at the first UE, the one or more resources based on the one or more second resources, wherein determining the one or more resources is based on a mapping of resources used for paging indication messages to the plurality of resources of the common resource pool.
12. The method of claim 8 , further comprising:
receiving a second paging indication message on the sidelink channel from a third UE, the second paging indication message associating the first UE with one or more other resources of the common resource pool; and
based on receiving the second paging indication message, monitoring the one or more other resources for a second message from the third UE.
13. The method of claim 8 , wherein the message indicates an event detected by the second UE.
14. An apparatus for wireless communication between a first user equipment (UE) and a second UE, comprising, at the first UE:
means for receiving, from the second UE, a paging indication message on a sidelink channel, the paging indication message associating the first UE with one or more resources of a common resource pool, separate from a paging pool, comprising a plurality of resources for communication on the sidelink channel; and
means for, based on receiving the paging indication message, monitoring the one or more resources for a message from the second UE.
15. The apparatus of claim 14 , wherein the paging indication message includes a value that maps to the one or more resources and further comprising means for determining, at the first UE, the one or more resources based on the value.
16. The apparatus of claim 15 , wherein determining the one or more resources is further based on an identifier of the first UE, wherein the paging indication message is addressed to the identifier of the first UE.
17. The apparatus of claim 14 , wherein the paging indication message is received in one or more second resources, and further comprising means for determining, at the first UE, the one or more resources based on the one or more second resources, wherein determining the one or more resources is based on a mapping of resources used for paging indication messages to the plurality of resources of the common resource pool.
18. The apparatus of claim 14 , further comprising:
means for receiving a second paging indication message on the sidelink channel from a third UE, the second paging indication message associating the first UE with one or more other resources of the common resource pool; and
means for, based on receiving the second paging indication message, monitoring the one or more other resources for a second message from the third UE.
19. The apparatus of claim 14 , wherein the message indicates an event detected by the second UE.
20. A non-transitory computer readable medium storing computer executable code thereon for wireless communication between a first user equipment (UE) and a second UE, comprising, at the first UE:
code for receiving, from the second UE, a paging indication message on a sidelink channel, the paging indication message associating the first UE with one or more resources of a common resource pool, separate from a paging pool, comprising a plurality of resources for communication on the sidelink channel; and
code for, based on receiving the paging indication message, monitoring the one or more resources for a message from the second UE.
21. The non-transitory computer readable medium of claim 20 , wherein the paging indication message includes a value that maps to the one or more resources and the code further comprises code for determining, at the first UE, the one or more resources based on the value.
22. The non-transitory computer readable medium of claim 21 , wherein determining the one or more resources is further based on an identifier of the first UE, wherein the paging indication message is addressed to the identifier of the first UE.
23. The non-transitory computer readable medium of claim 20 , wherein the paging indication message is received in one or more second resources, and the code further comprises code for determining, at the first UE, the one or more resources based on the one or more second resources, wherein determining the one or more resources is based on a mapping of resources used for paging indication messages to the plurality of resources of the common resource pool.
24. The non-transitory computer readable medium of claim 20 , wherein the code further comprises:
code for receiving a second paging indication message on the sidelink channel from a third UE, the second paging indication message associating the first UE with one or more other resources of the common resource pool; and
code for, based on receiving the second paging indication message, monitoring the one or more other resources for a second message from the third UE.
25. The non-transitory computer readable medium of claim 20 , wherein the message indicates an event detected by the second UE.