Configuration for ungrouped wake up signal and group wake up signal
The present disclosure relates to transmitting and receiving a group wake-up signal (WUS) in conjunction with an ungrouped WUS. A base station may group one or more UEs in a UE group, while other UEs may not be assigned to a UE group. The configuration of WUS resources and WUS sequences for grouped UEs and other UEs is a challenge. The base station may transmit, to one or more UEs in the UE group, a resource allocation of a group WUS resource within a set of WUS resources associated with a paging occasion that is assigned to the one or more UEs in the UE group. A UE, after receiving the resource allocation, may determine a location of the group WUS resource within the set of WUS resources. The UE may monitor for a group WUS at the determined location in the resource allocation of the group WUS resource.
1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising:
one or more memories, individually or in combination, having instructions; and
one or more processors, individually or in combination, configured to execute the instructions and cause the apparatus to:
receive, from a base station, a resource allocation for a group wake-up signal (WUS) associated with one or more UEs in a UE group, wherein the UE is within the UE group, and wherein the resource allocation indicates M WUS resources;
monitor for the group WUS at a first WUS resource of the M WUS resources associated with a first paging opportunity (PO);
cyclically alternate, based on M being greater than or equal to 2, from the first WUS resource to a second WUS resource of the M WUS resources after the first WUS resource is monitored for the group WUS, wherein the second WUS resource is associated with a second PO, and wherein at least one of the first WUS resource and the second WUS resource is associated with both of a system frame number SFN and a hyper-SFN; and
monitor for the group WUS at the second WUS resource.
2. The apparatus of claim 1 , wherein the one or more processors, individually or in combination, are further configured to cause the apparatus to:
alternate from the second WUS resource to another of the M WUS resources after monitoring for the group WUS received at the second WUS resource.
3. The apparatus of claim 1 , wherein the group WUS is configured to indicate that the base station has data to transmit to the UE during the first PO or the second PO.
4. The apparatus of claim 1 , wherein the one or more processors, individually or in combination, being configured to cause the apparatus to alternate from the first WUS resource to a second WUS resource, are further configured to cause the apparatus to:
cyclically alternate from a given one of the M WUS resources to another of the M WUS resources after monitoring for the group WUS at the given one of the M WUS resources.
5. The apparatus of claim 4 , wherein the one or more processors, individually or in combination, are further configured to cause the apparatus to:
receive, from the base station, an explicit indication to cyclically alternate through the M WUS resources to monitor for the group WUS.
6. The apparatus of claim 1 , wherein the one or more processors, individually or in combination, are further configured to cause the apparatus to:
receive the group WUS via the first WUS resource, wherein the group WUS is associated with multiple consecutive POs including the first PO.
7. The apparatus of claim 1 , wherein the one or more processors, individually or in combination, are further configured to cause the apparatus to:
receive, from the base station, a configuration indicating a number of consecutive POs associated with the group WUS.
8. The apparatus of claim 1 , wherein the one or more UEs in the UE group belong to a same service type.
9. An apparatus for wireless communication at a base station, the apparatus comprising:
one or more memories, individually or in combination, having instructions; and
one or more processors, individually or in combination, configured to execute the instructions and cause the apparatus to:
transmit, to a first user equipment (UE) group and a second UE group, a resource allocation for a group wake-up signal (WUS) associated with at least one of the first UE group or the second UE group, wherein the resource allocation indicates M WUS resources, wherein the resource allocation comprises an indication of a first WUS resource of the M WUS resources associated with the first UE group, wherein the resource allocation comprises an indication of a second WUS resource of the M WUS resources associated with the second UE group, and wherein at least one of the first WUS resource and the second WUS resource is associated with both of as system frame number (SFN) and a hyper-SFN;
transmit, to at least one of the first UE group or the second UE group, an explicit indication to cyclically alternate through the first WUS resource and the second WUS resource of the M WUS resources to monitor for the group WUS;
transmit, to the first UE group, a first group WUS via the first WUS resource, the first group WUS associated with a first paging opportunity (PO); and
transmit, to the second UE group after the first group WUS is transmitted, a second group WUS via the second WUS resource, the second group WUS associated with a second PO.
10. The apparatus of claim 9 , wherein the second group WUS is transmitted via the second WUS resource of the M WUS resources based on a cyclic alternation of the M WUS resources, and wherein the second WUS resource is different from the first WUS resource.
11. The apparatus of claim 9 , wherein the first group WUS is associated with multiple consecutive POs including the first PO.
12. The apparatus of claim 9 , wherein the one or more processors, individually or in combination, are further configured to cause the apparatus to:
transmit, to at least one of the first UE group or the second UE group, a configuration indicating a number of consecutive POs associated with the group WUS.
13. The apparatus of claim 9 , wherein the one or more processors, individually or in combination, are further configured to cause the apparatus to:
group multiple UEs in the first UE group based on each of the multiple UEs having a same service type.
14. A method for wireless communication at a user equipment (UE), comprising:
receiving, from a base station, a resource allocation for a group wake-up signal (WUS) associated with one or more UEs in a UE group, wherein the UE is within the UE group, and wherein the resource allocation indicates M WUS resources;
monitoring for the group WUS at a first WUS resource of the M WUS resources associated with a first paging opportunity (PO);
cyclically alternating, based on M being greater than or equal to 2, from the first WUS resource to a second WUS resource of the M WUS resources after the first WUS resource is monitored for the group WUS, wherein the second WUS resource is associated with a second PO, and wherein at least one of the first WUS resource and the second WUS resource is associated with both of a system frame number (SFN) and a hyper-SFN; and
monitoring for the group WUS at the second WUS resource.
15. The method of claim 14 , wherein the method further comprises:
alternating from the second WUS resource to another of the M WUS resources after monitoring for the group WUS received at the second WUS resource.
16. The method of claim 14 , wherein the group WUS is configured to indicate that the base station has data to transmit to the UE during the first PO or the second PO.
17. The method of claim 14 , wherein alternating from the first WUS resource to the second WUS resource further comprises:
cyclically alternating from a given one of the M WUS resources to another of the M WUS resources after monitoring for the group WUS at the given one of the M WUS resources.
18. The method of claim 17 , further comprising:
receiving, from the base station, an explicit indication to cyclically alternate through the M WUS resources to monitor for the group WUS.
19. The method of claim 14 , further comprising:
receiving the group WUS via the first WUS resource, wherein the group WUS is associated with multiple consecutive POs including the first PO.
20. The method of claim 14 , further comprising:
receiving, from the base station, a configuration indicating a number of consecutive POs associated with the group WUS.
21. The method of claim 14 , wherein the one or more UEs in the UE group belong to a same service type.
22. A method for wireless communication at a base station, comprising:
transmitting, to a first user equipment (UE) group and a second UE group, a resource allocation for a group wake-up signal (WUS) associated with at least one of the first UE group or the second UE group, wherein the resource allocation indicates M WUS resources, wherein the resource allocation comprises an indication of a first WUS resource of the M WUS resources associated with the first UE group, wherein the resource allocation comprises an indication of a second WUS resource of the M WUS resources associated with the second UE group, and wherein at least one of the first WUS resource and the second WUS resource is associated with both of a system frame number (SFN) and a hyper-SFN;
transmitting, to at least one of the first UE group or the second UE group, an explicit indication to cyclically alternate through the first WUS resource and the second WUS resource of the M WUS resources to monitor for the group WUS;
transmitting, to the first UE group, a first group WUS via the first WUS resource, the first group WUS associated with a first paging opportunity (PO); and
transmitting, to the second UE group after the first group WUS is transmitted, a second group WUS via the second WUS resource, the second group WUS associated with a second PO.
23. The method of claim 22 , wherein the second group WUS is transmitted via the second WUS resource of the M WUS resources based on a cyclic alternation of the M WUS resources, and wherein the second WUS resource is different from the first WUS resource.
24. The method of claim 22 , wherein the first group WUS is associated with multiple consecutive POs including the first PO.
25. The method of claim 22 , further comprising:
transmit, to at least one of the first UE group or the second UE group, a configuration indicating a number of consecutive POs associated with the group WUS.
26. The method of claim 22 , further comprising:
group multiple UEs in the first UE group based on each of the multiple UEs having a same service type.