Radio Notification with concurrent peripheral and central connection events

The Peripheral link events are arbitrarily scheduled with respect to each other and to the Central links. Therefore, if one link event ends too close to the start of a peripheral event, the notification signal before the peripheral connection event might not be available to the application.

Radio Event distance too short to trigger the notification signal shows an example where the gap before Link-3 is too short to trigger the nACTIVE and ACTIVE notification signals.

Figure 1. Radio Event distance too short to trigger the notification signal
Radio Event distance too short to trigger the notification signal

If the following condition is met:

tgap > tndist

the notification signal will arrive, as illustrated in Radio Event distance is long enough to trigger notification signal. In this figure, the gap before Link-3 is sufficient to trigger the nACTIVE and ACTIVE notification signals.

Figure 2. Radio Event distance is long enough to trigger notification signal
Radio Event distance is long enough to trigger notification signal