RE: Central sometimes not receiving notifications

Einar Thorsrud — Tue, 22 Oct 2024 11:56:44 GMT

Hi,

Reading what you write, it seems like you are describing a normal Bleutooth LE connection, with retransmissions if a packet is not acknowledged. The packet will be retransmitted until it is ancknowledged (or supervision timeout occurs).

[quote user=""]Is there a way to disable the retransmission of these packets (either peripheral or central side)? [/quote]

For normal BLE connections, no, retransmissions is always happenign and it is non-configurable. However, the newer LE Isochronous Channels allows configuring a fixed number of retransmissions (or non at all). This is not supported by all devices yet, though. (The primary use case for this is LE Audio, which is also a use case where old data serves no purpose). For an example, you can rerfer to Bluetooth: ISO combined BIS and CIS.