Tearing down a packet data session after a transition to a different subscription of a dual subscriber identity module dual standby user equipment

A dual subscriber identity module (SIM) dual standby (DSDS) user equipment (UE), comprising:

• a memory;
• at least one transceiver;
• and
• at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to:
• transition a packet data session from a first radio access technology (RAT) associated with a first subscription to a second RAT associated with a second subscription;
• transmit, over the first RAT responsive to the packet data session transition to the second RAT, one or more messages to tear down the packet data session over the first RAT;
• and
• receive downlink packet data over the first RAT after the packet data session transition to the second RAT,
• wherein the transmission of the one or more messages is triggered in response to the received downlink packet data.

A subscriber identity module (SIM) dual standby (DSDS) user equipment (UE), comprising:

• means for transitioning a packet data session from a first radio access technology (RAT) associated with a first subscription to a second RAT associated with a second subscription;
• means for transmitting, over the first RAT responsive to the packet data session transition to the second RAT, one or more messages to tear down the packet data session over the first RAT;
• and
• means for receiving downlink packet data over the first RAT after the packet data session transition to the second RAT,
• wherein the transmission of the one or more messages is triggered in response to the received downlink packet data.

A non-transitory computer-readable medium storing a set of instructions, the set of instructions comprising one or more instructions that, when executed by one or more processors of a dual subscriber identity module (SIM) dual standby (DSDS) user equipment (UE) cause the DSDS UE to:

• transition a packet data session from a first radio access technology (RAT) associated with a first subscription to a second RAT associated with a second subscription;
• and
• transmit, over the first RAT responsive to the packet data session transition to the second RAT, one or more messages to tear down the packet data session over the first RAT;
• and
• transmit downlink packet data over the first RAT after the packet data session transition to the second RAT,
• wherein the transmission of the one or more messages is triggered in response to the received downlink packet data.