Enhanced make-before-break (MBB) handover failure

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

detecting that a timer has expired prior to completing a handover of the UE from a source base station (BS) to a target BS;

selectively maintaining, based at least in part on detecting that the timer has expired prior to completing the handover and whether a connection between the UE and the source BS satisfies a connection condition, the connection,

wherein the UE maintains the connection without an action associated with a radio link failure being performed based at least in part on the timer having expired prior to completing the handover and the connection satisfying the connection condition; and transmitting, to the source BS, a message when the connection is maintained.

2. The method of claim 1 , wherein the message is associated with indicating to the source BS that a handover failure has occurred between the UE and the target BS.

3. The method of claim 1 , further comprising:

detecting that the connection does not satisfy the connection condition; and

declaring the radio link failure based at least in part on detecting that the connection does not satisfy the connection condition.

4. The method of claim 3 , further comprising:

using a radio link failure recovery mechanism based at least in part on declaring the radio link failure.

5. The method of claim 3 , further comprising:

releasing the connection based at least in part on declaring the radio link failure.

6. The method of claim 1 , further comprising:

triggering a radio resource control connection (RRC) reestablishment after a release of the source BS.

7. The method of claim 1 , wherein the radio link failure is not declared based at least in part on the connection satisfying the connection condition.

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

one or more memories; and

one or more processors, coupled to the one or more memories, which are configured, individually or in any combination, to:

detect that a timer has expired prior to completing a handover of the UE from a source base station (BS) to a target BS;

selectively maintain, based at least in part on detecting that the timer has expired prior to completing the handover and whether a connection between the UE and the source BS satisfies a connection condition, the connection,

wherein the UE is configured to maintain the connection without an action associated with a radio link failure being performed based at least in part on the timer having expired prior to completing the handover and the connection satisfying the connection condition; and

transmit, to the source BS, a message when the connection is maintained.

9. The UE of claim 8 , wherein the message is associated with indicating to the source BS that a handover failure has occurred between the UE and the target BS.

10. The UE of claim 8 , wherein the one or more processors are further configured, individually or in any combination, to:

detect that the connection does not satisfy the connection condition; and

declare the radio link failure based at least in part on detecting that the connection does not satisfy the connection condition.

11. The UE of claim 10 , wherein the one or more processors are further configured, individually or in any combination, to:

use a radio link failure recovery mechanism based at least in part on declaring the radio link failure.

12. The UE of claim 10 , wherein the one or more processors are further configured, individually or in any combination, to:

release the connection based at least in part on declaring the radio link failure.

13. The UE of claim 8 , wherein the one or more processors are further configured, individually or in any combination, to:

trigger a radio resource control connection (RRC) reestablishment after a release of the source BS.

14. The UE of claim 8 , wherein the radio link failure is not declared based at least in part on the connection satisfying the connection condition.

15. An apparatus for wireless communication, comprising:

means for detecting that a timer has expired prior to completing a handover of the apparatus from a source base station (BS) to a target BS;

means for selectively maintaining, based at least in part on detecting that the timer has expired prior to completing the handover and whether a connection between the apparatus and the source BS satisfies a connection condition, the connection,

wherein the apparatus maintains the connection without an action associated with a radio link failure being performed based at least in part on the timer having expired prior to completing the handover and the connection satisfying the connection condition; and

means for transmitting, to the source BS, a message when the connection is maintained.

16. The apparatus of claim 15 , wherein the message is associated with indicating to the source BS that a handover failure has occurred between the apparatus and the target BS.

17. The apparatus of claim 15 , further comprising:

means for detecting that the connection does not satisfy the connection condition; and

means for declaring the radio link failure based at least in part on detecting that the connection does not satisfy the connection condition.

18. The apparatus of claim 17 , further comprising:

means for using a radio link failure recovery mechanism based at least in part on declaring the radio link failure.

19. The apparatus of claim 17 , further comprising:

means for releasing the connection based at least in part on declaring the radio link failure.

20. The apparatus of claim 15 , further comprising:

means for triggering a radio resource control connection (RRC) reestablishment after a release of the source BS.