Method for protocol stack sharing in dual connectivity

An apparatus for wireless communications at a user equipment (UE), comprising:

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive configuration signaling that configures a first subscription of the UE and a second subscription of the UE, wherein the first subscription supports dual connectivity with a first cell group associated with a first radio access technology and a second cell group associated with a second radio access technology, and wherein the second subscription supports communications with a cell associated with the first radio access technology, the second radio access technology, or both;
• determine that the second subscription supports a same radio access technology as the first subscription and that first time-frequency resources corresponding to first signaling with the first subscription at least partially overlaps with second time-frequency resources corresponding to idle-mode signaling associated with the second subscription, wherein the second subscription is associated with a first protocol stack;
• and
• process, during the first time-frequency resources and using a second protocol stack associated with the first subscription based at least in part on the first protocol stack and the second protocol stack being the same, the idle-mode signaling associated with the second subscription based at least in part on the determining.

An apparatus for wireless communications at a user equipment (UE), comprising:

• means for receiving configuration signaling that configures a first subscription of the UE and a second subscription of the UE, wherein the first subscription supports dual connectivity with a first cell group associated with a first radio access technology and a second cell group associated with a second radio access technology, and wherein the second subscription supports communications with a cell associated with the first radio access technology, the second radio access technology, or both;
• means for determining that the second subscription supports a same radio access technology as the first subscription and that first time-frequency resources corresponding to first signaling with the first subscription at least partially overlaps with second time-frequency resources corresponding to idle-mode signaling associated with the second subscription, wherein the second subscription is associated with a first protocol stack;
• and
• means for processing, during the first time-frequency resources and using a second protocol stack associated with the first subscription based at least in part on the first protocol stack and the second protocol stack being the same, the idle-mode signaling associated with the second subscription based at least in part on the determining.

A non-transitory computer-readable medium storing code for wireless communications at a user equipment (UE), the code comprising instructions executable by a processor to:

• receive configuration signaling that configures a first subscription of the UE and a second subscription of the UE, wherein the first subscription supports dual connectivity with a first cell group associated with a first radio access technology and a second cell group associated with a second radio access technology, and wherein the second subscription supports communications with a cell associated with the first radio access technology, the second radio access technology, or both;
• determine that the second subscription supports a same radio access technology as the first subscription and that first time-frequency resources corresponding to first signaling with the first subscription at least partially overlaps with second time-frequency resources corresponding to idle-mode signaling associated with the second subscription, wherein the second subscription is associated with a first protocol stack;
• and
• process, during the first time-frequency resources and using a second protocol stack associated with the first subscription based at least in part on the first protocol stack and the second protocol stack being the same, the idle-mode signaling associated with the second subscription based at least in part on the determining.