Group-based connection release
Various aspects of the present disclosure relate to a UE that receives a group RRC release message that is based on a group mobility configuration, the group RRC release message intended for communication to a group of multiple UEs. The UE can switch to a RRC inactive state based in part on a determination that a RRC connection suspend configuration directed to the UE is included in the group RRC release message. The UE can switch to a RRC idle state based in part on a determination that the RRC connection suspend configuration is not included in the group RRC release message. A network entity can generate the group RRC release message with the group mobility configuration, and the group RRC release message is intended for communication to the group of multiple UEs. The network entity can then transmit the group RRC release message to the group of multiple UEs.
1. A user equipment (UE) for wireless communication, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
receive, from a network equipment (NE), a group mobility configuration message that indicates a group identity associated with a group of multiple UEs;
receive, from the NE and based at least in part on the group mobility configuration message, a group radio resource control release message intended for communication to the group of multiple UEs, wherein:
the group radio resource control release message indicates for a first subset of UEs of the group of multiple UEs to switch to a radio resource control inactive state based at least in part on a first radio resource control connection suspend configuration included in the group radio resource control release message being directed to the first subset of UEs; and
the group radio resource control release message indicates for a second subset of UEs in the group of multiple UEs to switch to a radio resource control idle state based at least in part on a second radio resource control connection suspend configuration directed to the second subset of UEs not being included in the group radio resource control release message; and
switch to the radio resource control inactive state based at least in part on the first subset of UEs including the UE; or
switch to the radio resource control idle state based at least in part on the second subset of UEs including the UE.
2. The UE of claim 1 , wherein the group mobility configuration message comprises one or more of a UE identity of the UE within the group of multiple UEs or a group security key, and wherein the group of multiple UEs are configured with one or more of the group identity, the group security key, or respective UE identities.
3. The UE of claim 1 , wherein the at least one processor is further configured to cause the UE to identify that at least one of the first radio resource control connection suspend configuration or the second radio resource control connection suspend configuration includes an indication of the UE.
4. The UE of claim 1 , wherein at least one of the first subset of UEs or the second subset of UEs is configured with a common configuration based at least in part on one of radio access network notification area information, a radio access network paging cycle, or a timer triggering a periodic radio access network notification area update procedure.
5. The UE of claim 1 , wherein the at least one processor is further configured to cause the UE to perform a radio resource control connection resume procedure based at least in part on timing information received in the group radio resource control release message.
6. The UE of claim 1 , wherein the at least one processor is further configured to cause the UE to:
select a serving cell based at least in part on cell information received in the group radio resource control release message; and
perform a radio resource control connection resume procedure based at least in part on the serving cell.
7. The UE of claim 1 , wherein the group radio resource control release message includes multiple redirected carrier information configurations.
8. The UE of claim 7 , wherein, responsive to the group radio resource control release message failing to include multiple radio resource control connection suspend configurations, the at least one processor is configured to cause the UE to:
identify that at least one redirected carrier information configuration of the multiple redirected carrier information configurations is intended for the UE; and
select a serving cell based at least in part on the at least one redirected carrier information configuration.
9. The UE of claim 8 , wherein the at least one processor is further configured to cause the UE to identify that the at least one redirected carrier information configuration is intended for the UE based at least in part on the at least one redirected carrier information configuration including one or more indications of one or more UEs including an indication of the UE.
10. The UE of claim 1 , wherein the group radio resource control release message includes multiple radio resource control connection suspend configurations for a third subset of UEs of the group of multiple UEs.
11. A network equipment (NE) for wireless communication, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the NE to:
transmit a group mobility configuration message that indicates a group identity associated with a group of multiple user equipment (UEs); and
transmit, based at least in part on the group mobility configuration message, a group radio resource control release message to the group of multiple UEs, wherein:
the group radio resource control release message indicates for a first UE in the group of multiple UEs to switch to a radio resource control inactive state based at least in part on a first radio resource control connection suspend configuration included in the group radio resource control release message being directed to the first UE; and
the group radio resource control release message indicates for a second UE in the group of multiple UEs to switch to a radio resource control idle state based at least in part on a second radio resource control connection suspend configuration directed to the second UE not being included in the group radio resource control release message.
12. The NE of claim 11 , wherein the group radio resource control release message includes multiple radio resource control connection suspend configurations for a subset of UEs in the group of multiple UEs.
13. The NE of claim 11 , wherein the group radio resource control release message includes multiple redirected carrier information configurations.
14. A method performed by a user equipment (UE), the method comprising:
receiving, from a network equipment (NE), a group mobility configuration message that indicates a group identity associated with a group of multiple UEs;
receiving, from the NE and based at least in part on the group mobility configuration message, a group radio resource control release message intended for communication to the group of multiple UEs, wherein:
the group radio resource control release message indicates for a first subset of UEs of the group of multiple UEs to switch to a radio resource control inactive state based at least in part on a first radio resource control connection suspend configuration included in the group radio resource control release message being directed to the first subset of UEs; and
the group radio resource control release message indicates for a second subset of UEs in the group of multiple UEs to switch to a radio resource control idle state based at least in part on a second radio resource control connection suspend configuration directed to the second subset of UEs not being included in the group radio resource control release message; and
switching to the radio resource control inactive state based at least in part on the first subset of UEs including the UE; or
switching to the radio resource control idle state based at least in part on the second subset of UEs including the UE.
15. The method of claim 14 , wherein the group mobility configuration message comprises one or more of a UE identity of the UE within the group of multiple UEs or a group security key, and wherein the group of multiple UEs are configured with one or more of the group identity, the group security key, or respective UE identities.
16. The method of claim 14 , further comprising identifying that at least one of the first radio resource control connection suspend configuration or the second radio resource control connection suspend configuration includes an indication of the UE.
17. The method of claim 14 , wherein at least one of the first subset of UEs or the second subset of UEs is configured with a common configuration based at least in part on one of radio access network notification area information, a radio access network paging cycle, or a timer triggering a periodic radio access network notification area update procedure.
18. The method of claim 14 , further comprising performing a radio resource control connection resume procedure based at least in part on timing information received in the group radio resource control release message.
19. The method of claim 14 , further comprising:
selecting a serving cell based at least in part on cell information received in the group radio resource control release message; and
performing a radio resource control connection resume procedure based at least in part on the serving cell.
20. A method performed by a network equipment (NE), the method comprising:
transmitting a group mobility configuration message that indicates a group identity associated with a group of multiple user equipment (UEs); and
transmitting, based at least in part on the group mobility configuration message, a group radio resource control release message to the group of multiple UEs, wherein:
the group radio resource control release message indicates for a first UE in the group of multiple UEs to switch to a radio resource control inactive state based at least in part on a first radio resource control connection suspend configuration included in the group radio resource control release message being directed to the first UE; and
the group radio resource control release message indicates for a second UE in the group of multiple UEs to switch to a radio resource control idle state based at least in part on a second radio resource control connection suspend configuration directed to the second UE not being included in the group radio resource control release message.