1. (Currently Amended) A method of wireless communication
comprising:
establishing a first packet data network (PDN) connection with a wireless wide area network (WWAN),
establishing a second PDN connection with the WWAN, the second PDN connection being a traffic-free connection;
establishing a connection with a wireless local area network (WLAN);
disconnecting the first PDN connection based at least in part on the established connection with the WLAN;
maintaining the second PDN connection with the WWAN while connected to the WLAN;
determining that the connection with the WLAN is unavailable; and
establishing a third PDN connection with the WWAN based at least in part on the second PDN connection.
2. The method of claim 1, wherein the second PDN connection comprises an attachment PDN that terminates at a WWAN network entity.
3. The method of claim 1, wherein the second PDN connection comprises an internet protocol (IP) multimedia subsystem (IMS) connection.
4. The method of claim 3, further comprising:
refraining from establishing the IMS connection with the WLAN based at least in part on the second PDN connection; and
communicating using the IMS connection over the WWAN while connected to the WLAN.
5. The method of claim 1, further comprising:

receiving a release request from the WWAN based at least in part on the connection with the WLAN, wherein disconnecting the first PDN connection is based at least in part on a detach request.
6. The method of claim 1, further comprising:
refraining from performing an attachment procedure with the WWAN based at least in part on the second PDN connection.
7. (Currently Amended) A method of wireless communication
comprising:
establishing a first packet data network (PDN) connection with a wireless wide area network (WWAN);
establishing a second PDN connection with the WWAN, the second PDN connection being a traffic-free connection;
determining that a connection with a wireless local area network (WLAN) comprises a trusted connection;
deactivating the first PDN connection with the WWAN based at least in part on the determination that the connection with the WLAN is a trusted connection;
maintaining the second PDN connection with the WWAN while connected to the WLAN; and
refraining from performing an attachment procedure with the WWAN based at least in part on deactivating the first PDN connection with the WWAN and maintaining the second PDN connection with the WWAN.
8. The method of claim 7, further comprising:
determining that the connection with the WLAN is a trusted connection is based at least in part on an internet protocol (IP) address assigned by the WLAN, a service set identifier (SSID) of the WLAN, an authentication mode of the WLAN, or any combination thereof.
9. The method of claim 7, wherein deactivating the connection to the
WWAN comprises:

entering a circuit switch (CS) only mode, disabling a communication mode of the WWAN, initiating a limited service mode, or any combination thereof.
10. The method of claim 7, further comprising:
determining that the connection with the WLAN is unavailable; and reactivating the connection with the WWAN based at least in part on the determination that the connection with the WLAN is unavailable.
11. The method of claim 7, further comprising:
receiving a detach request from the WWAN based at least in part on the connection with the WLAN.
12. (Currently Amended) A method of wireless communication
comprising:
establishing a first packet data network (PDN) connection with a user equipment (UE) over a wireless wide area network (WWAN);
establishing a second PDN connection with the UE over the WWAN, the second PDN connection being a traffic-free connection;
establishing a third PDN connection with the UE over a trusted wireless local area network (WLAN);
disconnecting the first PDN connection with the UE based at least in part on the third PDN connection; and
maintaining the second PDN connection while connected to the UE with the third PDN connection.
13. The method of claim 12, wherein the second PDN connection comprises an attachment PDN that terminates at a WWAN network entity.
14. The method of claim 12, wherein the second PDN connection comprises an internet protocol (IP) multimedia subsystem (IMS) connection.
15. The method of claim 12, further comprising:

transmitting a release request to the UE for the first PDN connection based at least in part on the third PDN connection with the trusted WLAN.
16. The method of claim 12, further comprising:
establishing a fourth PDN connection over the WWAN with the UE based at least in part on the second PDN connection.
17. (Currently Amended) An apparatus for wireless communication
comprising:
a processor;
memory in electronic communication with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
establish a first packet data network (PDN) connection with a wireless wide area network (WWAN);
establish a second PDN connection with the WWAN, the second PDN connection being a traffic-free connection;
establish a connection with a wireless local area network (WLAN);
disconnect the first PDN connection based at least in part on the established connection with the WLAN;
maintain the second PDN connection with the WWAN while connected to the WLAN;
determine that the connection with the WLAN is unavailable; and
establish a third PDN connection with the WWAN based at least in part on the second PDN connection.
18. (Currently Amended) apparatus for wireless communication
comprising:
a processor;
memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:

establish a first packet data network (PDN) connection with a wireless wide area network (WWAN);
establish a second PDN connection with the WWAN, the second PDN connection being a traffic-free connection;
determine that a connection with a wireless local area network (WLAN) comprises a trusted connection;
deactivate the first PDN connection with the WWAN based at least in part on the determination that the connection with the WLAN is a trusted connection;
maintain the second PDN connection with the WWAN while connected to the WLAN; and
refrain from performing an attachment procedure with the WWAN based at least in part on deactivating the first PDN connection with the WWAN and maintaining the second PDN connection with the WWAN.
19. (Currently Amended) An apparatus for wireless communication
comprising:
a processor;
memory in electronic communication with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
establish a first packet data network (PDN) connection with a user equipment (UE) over a wireless wide area network (WWAN);
establish a second PDN connection with the UE over the WWAN, the second PDN connection being a traffic-free connection;
establish a third PDN connection with the UE over a trusted wireless local area network (WLAN);
disconnect the first PDN connection with the UE based at least in part on the third PDN connection; and
maintain the second PDN connection while connected to the UE with the third PDN connection.

20. (Currently Amended) An apparatus for wireless communication,
comprising:
means for establishing a first packet data network (PDN) connection with a wireless wide area network (WWAN);
means for establishing a second PDN connection with the WWAN, the second PDN connection being a traffic-free connection;
means for establishing a connection with a wireless local area network (WLAN);
means for disconnecting the first PDN connection based at least in part on the established connection with the WLAN;
means for maintaining the second PDN connection with the WWAN while connected to the WLAN;
means for determining that the connection with the WLAN is unavailable; and
means for establishing a third PDN connection with the WWAN based at least in part on the second PDN connection.
21. The apparatus of claim 20, wherein the second PDN connection comprises an attachment PDN that terminates at a WWAN network entity.
22. The apparatus of claim 20, wherein the second PDN connection comprises an internet protocol (IP) multimedia subsystem (IMS) connection.
23. The apparatus of claim 22, further comprising:
means for refraining from establishing the IMS connection with the WLAN based at least in part on the second PDN connection; and
means for communicating using the IMS connection over the WWAN while connected to the WLAN.
24. The apparatus of claim 20, further comprising:
means for receiving a release request from the WWAN based at least in part on the connection with the WLAN, wherein disconnecting the first PDN connection is based at least in part on a detach request.

25. The apparatus of claim 20, further comprising:
means for refraining from performing an attachment procedure with the WWAN based at least in part on the second PDN connection.
26. (Currently Amended) An apparatus for wireless communication,
comprising:
means for establishing a first packet data network (PDN) connection with a wireless wide area network (WWAN);
means for establishing a second PDN connection with the WWAN, the second PDN connection being a traffic-free connection;
means for determining that a connection with a wireless local area network (WLAN) comprises a trusted connection;
means for deactivating the first PDN connection with the WWAN based at least in part on the determination that the connection with the WLAN is a trusted connection;
means for maintaining the second PDN connection with the WWAN while connected to the WLAN; and
means for refraining from performing an attachment procedure with the WWAN based at least in part on deactivating the first PDN connection with the WWAN and maintaining the second PDN connection with the WWAN.
27. The apparatus of claim 26, further comprising:
means for determining that the connection with the WLAN is a trusted connection is based at least in part on an internet protocol (IP) address assigned by the WLAN, a service set identifier (SSID) of the WLAN, an authentication mode of the WLAN, or any combination thereof.
28. The apparatus of claim 26, wherein the means for deactivating the
connection to the WWAN comprises:

means for entering a circuit switch (CS) only mode, means for disabling a communication mode of the WWAN, means for initiating a limited service mode, or any combination thereof.
29. The apparatus of claim 26, further comprising:
means for determining that the connection with the WLAN is unavailable; and
means for reactivating the connection with the WWAN based at least in part on the determination that the connection with the WLAN is unavailable.
30. The apparatus of claim 26, further comprising:
means for receiving a detach request from the WWAN based at least in part on the connection with the WLAN.
31. (Currently Amended) An apparatus for wireless communication,
comprising:
means for establishing a first packet data network (PDN) connection with a user equipment (UE) over a wireless wide area network (WWAN);
means for establishing a second PDN connection with the UE over the WWAN, the second PDN connection being a traffic-free connection;
means for establishing a third PDN connection with the UE over a trusted wireless local area network (WLAN);
means for disconnecting the first PDN connection with the UE based at least in part on the third PDN connection; and
means for maintaining the second PDN connection while connected to the UE with the third PDN connection.
32. The apparatus of claim 31, wherein the second PDN connection comprises an attachment PDN that terminates at a WWAN network entity.
33. The apparatus of claim 31, wherein the second PDN connection comprises an internet protocol (IP) multimedia subsystem (IMS) connection.

34. The apparatus of claim 31, further comprising:
means for transmitting a release request to the UE for the first PDN connection based at least in part on the third PDN connection with the trusted WLAN.
35. The apparatus of claim 31, further comprising:
means for establishing a fourth PDN connection over the WWAN with the UE based at least in part on the second PDN connection.
36. (Currently Amended) A non-transitory computer-readable medium
storing code for wireless communication, the code comprising instructions executable to:
establish a first packet data network (PDN) connection with a wireless wide area network (WWAN);
establishing a second PDN connection with the WWAN, the second PDN connection being a traffic-free connection;
establish a connection with a wireless local area network (WLAN);
disconnect the first PDN connection based at least in part on the established connection with the WLAN;
maintain the second PDN connection with the WWAN while connected to the WLAN;
determine that the connection with the WLAN is unavailable; and
establish a third PDN connection with the WWAN based at least in part on the second PDN connection.
37. (Currently Amended) A non-transitory computer-readable medium
storing code for wireless communication, the code comprising instructions executable to:
establish a first packet data network (PDN) connection with a wireless wide area network (WWAN);
establish a second PDN connection with the WWAN, the second PDN connection being a traffic-free connection;
determine that a connection with a wireless local area network (WLAN) comprises a trusted connection;

deactivate the first PDN connection with the WWAN based at least in part on the determination that the connection with the WLAN is a trusted connection;
maintain the second PDN connection with the WWAN while connected to the WLAN; and
refrain from performing an attachment procedure with the WWAN based at least in part on deactivating the first PDN connection with the WWAN and maintain the second PDN connection with the WWAN.
38. (Currently Amended) A non-transitory computer-readable medium
storing code for wireless communication, the code comprising instructions executable to:
establish a first packet data network (PDN) connection with a user equipment (UE) over a wireless wide area network (WWAN);
establish a second PDN connection with the UE over the WWAN, the second PDN connection being a traffic-free connection;
establish a third PDN connection with the UE over a trusted wireless local area network (WLAN);
disconnect the first PDN connection with the UE based at least in part on the third PDN connection; and
maintain the second PDN connection while connected to the UE with the third PDN connection.