Systems and methods to designate subscription priority to set a gain state in a multi-subscriber identity module device

Patent metadata

Field	Value
Publication number	US-12425835-B2
Application number	US-202217811481-A
Country	US
Kind code	B2
Filing date	Jul 8, 2022
Priority date	Jul 8, 2022
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

A method of wireless communication is performed by a user equipment (UE) that has a first subscriber identity module (SIM) and a second SIM. The method of wireless communication includes operating in a mode in which the first SIM is associated with a first subscription and in which the second SIM is associated with a second subscription, the first and second subscriptions being active at a same time and sharing radio frequency (RF) resources of the UE; designating the first subscription as having a higher priority status than the second subscription, analyzing a signal condition associated with the second subscription, and changing the higher priority status to apply to the second subscription based on the signal condition.

First claim

What is claimed is:

1. A method of wireless communication performed by a user equipment (UE) that has a first subscriber identity module (SIM) and a second SIM, the method comprising:
operating in a dual-SIM dual-active (DSDA) mode in which the first SIM is associated with a first subscription and in which the second SIM is associated with a second subscription, the first and second subscriptions being active at a same time and sharing a radio frequency (RF) amplifier of the UE;
designating the first subscription as having a higher priority status than the second subscription;
analyzing a signal condition associated with the second subscription; and
changing the higher priority status to apply to the second subscription based on the signal condition.

2. The method of claim 1 , wherein the designating the first subscription as having the higher priority status comprises:
disabling the second subscription from updating a frequency loop associated with the second subscription and enabling the first subscription to adjust a gain setting of the shared RF amplifier of the UE.

3. The method of claim 2 , wherein the shared RF amplifier comprises a first low noise amplifier (LNA), the method further comprising:
adjusting the gain setting of the LNA on behalf of the first subscription.

4. The method of claim 1 , wherein the designating the first subscription as having the higher priority status comprises:
disabling the second subscription from updating a time tracking loop associated with the second subscription and enabling the first subscription to adjust a gain setting of the shared RF amplifier of the UE.

5. The method of claim 1 , wherein analyzing the signal condition comprises:
determining that a difference in power between signals associated with the first subscription and signals associated with the second subscription falls below a threshold; and
wherein changing the higher priority status to apply to the second subscription comprises: switching the higher priority status away from a first plurality of RF chains associated with the first subscription and to a second plurality of RF chains associated with the second subscription.

6. The method of claim 1 , wherein analyzing the signal condition comprises:
determining that a difference in power between signals associated with the first subscription and signals associated with the second subscription is above a threshold; and
wherein changing the higher priority status to apply to the second subscription comprises: switching the higher priority status away from a first RF chain associated with the first subscription and to a second RF chain associated with the second subscription, wherein the higher priority status stays with a third RF chain associated with the first subscription.

7. The method of claim 1 , wherein changing the higher priority status to apply to the second subscription is further performed in response to analyzing a mobility condition associated with the second subscription.

8. The method of claim 7 , wherein analyzing the mobility condition comprises determining that the first subscription performs a quantity of mobility operations, within a time period, greater than a threshold.

9. The method of claim 1 , further comprising:
returning the higher priority status to the first subscription based at least in part on a change in the signal condition.

10. The method of claim 1 , wherein the mode includes the first subscription and the second subscription performing reception on at least one frequency band in common.

11. The method of claim 1 , wherein the first SIM is designated as a default data subscription (DDS).

12. The method of claim 1 , wherein designating the first subscription as having the higher priority status comprises:
allowing the first subscription to control one or more loops of the UE and to control a gain of a component of the shared RF amplifier; and
disallowing the second subscription to control the one or more loops of the UE and to control the gain of the component of the shared RF amplifier.

13. The method of claim 12 , wherein changing the higher priority status to apply to the second subscription comprises:
allowing the second subscription to control the one or more loops of the UE and to control the gain of the component of the shared RF amplifier; and
disallowing the first subscription to control the one or more loops of the UE and to control the gain of the component of the shared RF amplifier.

14. The method of claim 12 , wherein designating the first subscription as having the higher priority status is performed based on a type of service provided on the first subscription.

15. The method of claim 1 , wherein changing the higher priority status is included in a periodic swap of the higher priority status between the first subscription and the second subscription.

16. A user equipment (UE) comprising:
a first subscriber identity module (SIM) associated with a first service provider subscription and a second SIM associated with a second service provider subscription; and
a processor configured to access the first SIM and the second SIM, wherein the processor is further configured to:
operate in a dual-SIM dual active (DSDA) mode in which a first communication session associated with the first service provider subscription is concurrently ongoing with a second communication session associated with the second service provider subscription;
change a gain setting of a radio frequency (RF) component on behalf of the first service provider subscription, wherein the RF component includes an amplifier that is shared by the first service provider subscription and the second service provider subscription;
freeze a second tracking loop associated with the second service provider subscription;
swap a status setting associated with the first service provider subscription and the second service provider subscription, wherein the status setting once swapped allows for changing the gain setting of the RF component on behalf of the second service provider subscription and for freezing a first tracking loop associated with the first service provider subscription; and
revert the status setting to disallow changing the gain setting of the RF component on behalf of the second service provider subscription and to freeze the second tracking loop.

17. The UE of claim 16 , wherein the processor is configured to swap the status setting and revert the status setting periodically and repeatedly in response to a signal condition of either or both of the first service provider subscription and the second service provider subscription.

18. The UE of claim 16 , wherein the processor is configured to swap the status setting and revert the status setting periodically and repeatedly in response to a power difference between a first signal associated with the first service provider subscription and a second signal associated with the second service provider subscription.

19. The UE of claim 16 , wherein the processor is configured to swap the status setting and revert the status setting on an RF chain-by-RF chain basis within a plurality of RF chains of the UE, wherein a first subset of the plurality of RF chains are associated with the first service provider subscription and a second subset of the plurality of RF chains are associated with the second service provider subscription.

20. The UE of claim 16 , wherein the processor is configured to swap the status setting and revert the status setting in response to a power difference, be

Assignees

• Qualcomm Inc

Inventors

• Juneja Raveesh
• Kumar Akash

Classifications

• H04W72/56

  based on priority criteria · CPC title

• H04B1/12 Primary

  Neutralising, balancing, or compensation arrangements · CPC title

• H04W8/183 Primary

  Processing at user equipment or user record carrier · CPC title