Techniques for managing power amplifier reliability for multi-SIM antenna switching concurrency
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect a first communication, associated with a first subscriber identity module (SIM) operating in a connected mode, that is at least partially overlapping in a time domain with a second communication associated with a second SIM operating in an idle mode. The UE may detect that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch. The UE may perform a preventive action based at least in part on the first communication associated with the first SIM overlapping in the time domain with the second communication associated with the second SIM while the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch. Numerous other aspects are described.
1. A method of wireless communication performed by a user equipment (UE), comprising:
detecting a first communication, associated with a first subscriber identity module (SIM) operating in a connected mode, that is at least partially overlapping in a time domain with a second communication associated with a second SIM operating in an idle mode;
detecting that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and
performing a preventive action associated with a power amplifier in the transmit chain associated with the first SIM, wherein the performance of the preventive action comprises limiting an allowable output power from the transmit chain associated with the first SIM to a maximum value, the performance of the preventive action being based at least in part on the first communication associated with the first SIM overlapping in the time domain with the second communication associated with the second SIM while the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.
2. The method of claim 1 , wherein the second communication associated with the second SIM includes activity to prepare or program one or more components in the receive chain associated with the second SIM to demodulate or decode a received signal.
3. The method of claim 1 , wherein the maximum value satisfies a ruggedness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.
4. The method of claim 3 , wherein the maximum value for the allowable output power is a minimum of the ruggedness or reliability parameter associated with the power amplifier and one or more additional limits on the allowable output power from the transmit chain associated with the first SIM.
5. The method of claim 1 , wherein the performance of the preventive action comprises stopping or suspending transmission activity associated with the first SIM while the first communication associated with the first SIM is overlapping in the time domain with the second communication associated with the second SIM.
6. The method of claim 5 , further comprising:
resuming the transmission activity associated with the first SIM based at least in part on the first communication associated with the first SIM ceasing to overlap in the time domain with the second communication associated with the second SIM.
7. The method of claim 1 , wherein the performance of the preventive action comprises denying the second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM.
8. The method of claim 1 , further comprising:
determining a first priority for the first communication associated with the first SIM and a second priority for the second communication associated with the second SIM; and
selecting the preventive action based at least in part on the first priority and the second priority.
9. The method of claim 8 , wherein the performance of the preventive action comprises stopping or suspending transmission activity associated with the first SIM based at least in part on the second communication associated with the second SIM having a higher priority than the first communication associated with the first SIM.
10. The method of claim 8 , wherein the performance of the preventive action comprises denying the second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM based at least in part on the first communication associated with the first SIM having a higher priority than the second communication associated with the second SIM.
11. A user equipment (UE) for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
detect a first communication, associated with a first subscriber identity module (SIM) operating in a connected mode, that is at least partially overlapping in a time domain with a second communication associated with a second SIM operating in an idle mode;
detect that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and
perform a preventive action associated with a power amplifier in the transmit chain associated with the first SIM, wherein, to perform the preventive action, the one or more processors are configured to limit an allowable output power from the transmit chain associated with the first SIM to a maximum value, the performance of the preventive action being based at least in part on the first communication associated with the first SIM overlapping in the time domain with the second communication associated with the second SIM while the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.
12. The UE of claim 11 , wherein the second communication associated with the second SIM includes activity to prepare or program one or more components in the receive chain associated with the second SIM to demodulate or decode a received signal.
13. The UE of claim 11 , wherein the maximum value satisfies a ruggedness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.
14. The UE of claim 13 , wherein the maximum value for the allowable output power is a minimum of the ruggedness or reliability parameter associated with the power amplifier and one or more additional limits on the allowable output power from the transmit chain associated with the first SIM.
15. The UE of claim 11 , wherein, to perform the preventive action, the one or more processors are configured to stop or suspend transmission activity associated with the first SIM while the first communication associated with the first SIM is overlapping in the time domain with the second communication associated with the second SIM.
16. The UE of claim 15 , wherein the one or more processors are further configured to:
resume the transmission activity associated with the first SIM based at least in part on the first communication associated with the first SIM ceasing to overlap in the time domain with the second communication associated with the second SIM.
17. The UE of claim 11 , wherein, to perform the preventive action, the one or more processors are configured to deny the second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM.
18. The UE of claim 11 , wherein the one or more processors are further configured to:
determine a first priority for the first communication associated with the first SIM and a second priority for the second communication associated with the second SIM; and
select the preventive action based at least in part on the first priority and the second priority.
19. The UE of claim 18 , wherein, to perform the preventive action, the one or more processors are configured to stop or suspend transmission activity associated with the first SIM based at least in part on the second communication associated with the second SIM having a higher priority than the first communication associated with the first SIM.
20. The UE of claim 18 , wherein, to perform the preventive action, the one or more processors are configured to deny the second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM based at least in part on the first communication associated with the first SIM having a higher priority than the second communication associated with the second SIM.
21. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
detect a first communication, associated with a first subscriber identity module (SIM) operating in a connected mode, that is at least partially overlapping in a time domain with a second communication associated with a second SIM operating in an idle mode;
detect that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and
perform a preventive action associated with a power amplifier in the transmit chain associated with the first SIM, wherein, to perform the preventive action, the one or more instructions cause the UE to limit an allowable output power from the transmit chain associated with the first SIM to a maximum value, the performance of the preventive action being based at least in part on the first communication associated with the first SIM overlapping in the time domain with the second communication associated with the second SIM while the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.
22. The non-transitory computer-readable medium of claim 21 , wherein the maximum value satisfies a ruggedness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.
23. The non-transitory computer-readable medium of claim 21 , wherein the one or more instructions further cause the UE to stop or suspend transmission activity associated with the first SIM while the first communication associated with the first SIM is overlapping in the time domain with the second communication associated with the second SIM.
24. The non-transitory computer-readable medium of claim 21 , wherein the one or more instructions further cause the UE to deny the second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM.
25. The non-transitory computer-readable medium of claim 21 , wherein the one or more instructions further cause the UE to:
determine a first priority for the first communication associated with the first SIM and a second priority for the second communication associated with the second SIM; and
select the preventive action based at least in part on the first priority and the second priority.
26. An apparatus for wireless communication, comprising:
means for detecting a first communication, associated with a first subscriber identity module (SIM) operating in a connected mode, that is at least partially overlapping in a time domain with a second communication associated with a second SIM operating in an idle mode;
means for detecting that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and
means for performing a preventive action associated with a power amplifier in the transmit chain associated with the first SIM, wherein the means for performing the preventive action comprise means for limiting an allowable output power from the transmit chain associated with the first SIM to a maximum value, the performance of the preventive action being based at least in part on the first communication associated with the first SIM overlapping in the time domain with the second communication associated with the second SIM while the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.
27. The apparatus of claim 26 , wherein the maximum value satisfies a ruggedness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.
28. The apparatus of claim 26 , further comprising means for stopping or suspending transmission activity associated with the first SIM while the first communication associated with the first SIM is overlapping in the time domain with the second communication associated with the second SIM.
29. The apparatus of claim 26 , further comprising means for denying the second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM.
30. The apparatus of claim 26 , further comprising:
means for determining a first priority for the first communication associated with the first SIM and a second priority for the second communication associated with the second SIM; and
means for selecting the preventive action based at least in part on the first priority and the second priority.