Techniques for handling calls associated with user equipment transition from dual active mode to dual standby mode

A method of wireless communication performed by a user equipment (UE), comprising:

• determining that the UE is in an active session using a first radio access technology (RAT) associated with a first subscription of the UE;
• determining that a second subscription of the UE is associated with a call on hold using the first RAT while the UE is in the active session using the first RAT associated with the first subscription of the UE;
• and
• blocking transmission of an inter-RAT measurement report associated with the first RAT and a second RAT based at least in part on the determination that the second subscription of the UE is associated with the call on hold using the first RAT while the UE is in the active session using the first RAT associated with the first subscription of the UE.

A user equipment (UE) for wireless communication, comprising:

• one or more memories;
• and
• one or more processors operatively coupled to the one or more memories, the one or more processors configured to:
• receive, while the UE is in an active session using a first radio access technology (RAT) associated with a first subscription of the UE, a call request via the first RAT, wherein the call request is associated with a second subscription of the UE;
• search a database that stores information indicating whether one or more cells of the first RAT are associated with fallback from the first RAT to a second RAT for calls;
• determine, based at least in part on searching the database, that the call request is received from a serving cell that is associated with fallback from the first RAT to the second RAT for calls;
• and
• reject the call request or transition the second subscription to a third RAT based at least in part on the determination that the call request is received via the serving cell that is associated with fallback from the first RAT to the second RAT for calls.

A user equipment (UE) for wireless communication, comprising:

• one or more memories;
• and
• one or more processors operatively coupled to the one or more memories, the one or more processors configured to:
• determine that the UE is in an active session using a first radio access technology (RAT) associated with a first subscription of the UE;
• determine that a second subscription of the UE is associated with a call on hold using the first RAT while the UE is in the active session using the first RAT associated with the first subscription of the UE;
• and
• block transmission of an inter-RAT measurement report associated with the first RAT and a second RAT based at least in part on the determination that the second subscription of the UE is associated with the call on hold using the first RAT while the UE is in the active session using the first RAT associated with the first subscription of the UE.