This section clarifies the functionality of the Radio Notification signal when Connection Event Length Extension is enabled in the SoftDevice.
When Connection Event Length Extension is enabled, connection events may be extended beyond their initial tradio to accommodate the exchange of a higher number of packet pairs. This allows more idle time to be used by the radio and will consequently affect the radio notifications.
In central links, Radio Notification does not impose limits on how long the Radio event (tradio) may be extended. This implies that all idle time in between connection events can be used for event extension. Because of this, the ACTIVE signal and nACTIVE signals between connection events cannot be guaranteed when Connection Event Length Extension is enabled. The following figure shows an example of how the idle time between connection events can be utilized when Connection Event Length Extension and Radio Notification signals are enabled.
