Synchronizing data with timer T3412

If Power Saving Mode (PSM) sleep cannot be used, the application can synchronize uplink data with periodic Tracking Area Update (TAU) by using timer T3412 notifications the same way as PSM sleep notifications. A prewarning of timer T3412's expiration can be used to trigger uplink data.

Hardware components must not be deactivated based on timer T3412 notifications because the modem is active and using the resources.

The following notification example indicates that timer T3412 has started with a 3600000 ms value after connection release:

%XT3412: 3600000

The following notification example is a prewarning of timer T3412's expiration 5000 ms before the timer expires:

%XT3412: 5000

The following notification example indicates that timer T3412 has expired:

%XT3412: 0