Methods and systems for avoiding collisions in a multi-subscriber identity module (MSIM) user equipment

1. A method of wireless communication performed by a multi-subscriber identity module (MSIM) user equipment (UE), the method comprising:

detecting a collision between a duration in time domain configured to receive downlink data for a dedicated data subscription (DDS) subscription of the MSIM UE and a first paging occasion configured to receive a paging message for a non-DDS (n-DDS) subscription of the MSIM UE;

monitoring a second paging occasion different from the first paging occasion for the paging message, the second paging occasion configured to avoid collision with the duration in time domain; and

triggering, in response to the detecting the collision, a new radio (NR) network on which the n-DDS subscription is camped to initiate a mobility registration update of the UE.

2. The method of claim 1 , wherein the monitoring includes switching reception of the paging message from a first beam carrying a first synchronization signal block (SSB) transmitted via the first paging occasion to a second beam carrying a second SSB transmitted via the second paging occasion and spaced apart in time from the duration in time domain.

3. The method of claim 2 , wherein the switching occurs when a signal strength indicator of the second beam is within a respective threshold signal strength indicator.

4. The method of claim 3 , wherein the signal strength indicator is one or more of a reference signal received power (RSRP), a signal to interference plus noise ratio (SINR), a received signal strength indicator (RSSI), a reference signal received quality (RSRQ), a signal to noise plus interference ratio (SNIR), or a signal to noise ratio (SNR).

5. The method of claim 2 , wherein the second SSB includes a paging search space configured with a non-zero search space identity.

6. The method of claim 5 , wherein a periodicity of the paging search space is no less than a minimum time duration to overcome the collision.

7. The method of claim 1 , wherein the mobility registration update of the UE is configured to assign the UE an updated 5G global unique temporary identifier (5G-GUTI) or an updated 5G S-temporary mobile subscriber identity (5G-S-TMSI).

8. The method of claim 1 , wherein the DDS subscription is camped on a long-term evolution (LTE) network or a NR network, and the n-DDS subscription is camped on the NR network in an idle mode.

9. The method of claim 1 , wherein the downlink data is evolved multimedia broadcast multicast services (eMBMS) data.

10. The method of claim 9 , wherein the DDS subscription is camped on a NR network and the eMBMS data is received via the NR network.

11. The method of claim 1 , wherein the UE is a dual subscriber identity module (SIM) dual standby (DSDS) UE.

12. A multi-subscriber identity module (MSIM) user equipment (UE), comprising:

a memory; and

a processor operatively coupled to the memory and configured to:

detect a collision between a duration in time domain configured to receive downlink data for a dedicated data subscription (DDS) subscription of the MSIM UE and a first paging occasion configured to receive a paging message for a non-DDS (n-DDS) subscription of the MSIM UE;

monitor a second paging occasion different from the first paging occasion for the paging message, the second paging occasion configured to avoid collision with the duration in time domain; and

trigger, in response to the detecting the collision, a new radio (NR) network on which the n-DDS subscription is camped to initiate a mobility registration update of the MSIM UE.

13. The MSIM UE of claim 12 , wherein the processor is configured to switch reception of the paging message from a first beam carrying a first synchronization signal block (SSB) transmitted via the first paging occasion to a second beam carrying a second SSB transmitted via the second paging occasion and spaced apart in time from the duration in time domain.

14. The MSIM UE of claim 13 , wherein the processor is configured to switch when a signal strength indicator of the second beam is within a respective threshold signal strength indicator.

15. The MSIM UE of claim 14 , wherein the signal strength indicator is one or more of a reference signal received power (RSRP), a signal to interference plus noise ratio (SINR), a received signal strength indicator (RSSI), a reference signal received quality (RSRQ), a signal to noise plus interference ratio (SNIR), or a signal to noise ratio (SNR).

16. The MSIM UE of claim 13 , wherein the second SSB includes a paging search space configured with a non-zero search space identity.

17. The MSIM UE of claim 12 , wherein the mobility registration update of the MSIM UE is configured to assign the MSIM UE an updated 5G global unique temporary identifier (5G-GUTI) or an updated 5G S-temporary mobile subscriber identity (5G-S-TMSI).

18. The MSIM UE of claim 12 , wherein the DDS subscription is camped on a long-term evolution (LTE) network or a NR network, and the n-DDS subscription is camped on the NR network in an idle mode.

19. The MSIM UE of claim 12 , wherein the DDS subscription is camped on a NR network and the downlink data is evolved multimedia broadcast multicast services (eMBMS) data configured to be received via the NR network.

20. The MSIM UE of claim 12 , wherein the MSIM UE is a dual subscriber identity module (SIM) dual standby (DSDS) UE.

21. A non-transitory computer-readable medium (CRM) having program code recorded thereon, the program code comprising:

code for causing a multi-subscriber identity module (MSIM) user equipment (UE) to detect a collision between a duration in time domain configured to receive downlink data for a dedicated data subscription (DDS) subscription of the MSIM UE and a first paging occasion configured to receive a paging message for a non-DDS (n-DDS) subscription of the MSIM UE;

code for causing the MSIM UE to monitor a second paging occasion different from the first paging occasion for the paging message, the second paging occasion configured to avoid collision with the duration in time domain; and

code for causing the MSIM UE to trigger, in response to the detecting the collision, a new radio (NR) network on which the n-DDS subscription is camped to initiate a mobility registration update of the MSIM UE.

22. The non-transitory CRM of claim 21 , further comprising code for switching reception of the paging message from a first beam carrying a first synchronization signal block (SSB) transmitted via the first paging occasion to a second beam carrying a second SSB transmitted via the second paging occasion and spaced apart in time from the duration in time domain.

23. The non-transitory CRM of claim 21 , wherein the mobility registration update of the MSIM UE is configured to assign the MSIM UE an updated 5G global unique temporary identifier (5G-GUTI) or an updated 5G S-temporary mobile subscriber identity (5G-S-TMSI).

24. The non-transitory CRM of claim 21 , wherein the DDS subscription is camped on a NR network and the downlink data is evolved multimedia broadcast multicast services (eMBMS) data configured to be received via the NR network.

25. A multi-subscriber identity module (MSIM) user equipment (UE), comprising:

means for detecting a collision between a duration in time domain configured to receive downlink data for a dedicated data subscription (DDS) subscription of the MSIM UE and a first paging occasion configured to receive a paging message for a non-DDS (n-DDS) subscription of the MSIM UE;

means for monitoring a second paging occasion different from the first paging occasion for the paging message, the second paging occasion configured to avoid collision with the duration in time domain; and

means for triggering, in response to the detecting the collision, a new radio (NR) network on which the n-DDS subscription is camped to initiate a mobility registration update of the UE.

26. The MSIM UE of claim 25 , further comprising means for switching reception of the paging message from a first beam carrying a first synchronization signal block (SSB) transmitted via the first paging occasion to a second beam carrying a second SSB transmitted via the second paging occasion and spaced apart in time from the duration in time domain.

27. The MSIM UE of claim 25 , wherein the mobility registration update of the MSIM UE is configured to assign the UE an updated 5G global unique temporary identifier (5G-GUTI) or an updated 5G S-temporary mobile subscriber identity (5G-S-TMSI).

28. The UE of claim 25 , wherein the MSIM UE is a dual subscriber identity module (SIM) dual standby (DSDS) UE.