Ble Mesh PB-GATT - how is the connection established?

RE: Ble Mesh PB-GATT - how is the connection established?

johnny — Wed, 25 Oct 2017 07:01:50 GMT

BT SIG Management of Devices in a Bluetooth Mesh Network blog.bluetooth.com/management-of-devices-bluetooth-mesh-network

RE: Ble Mesh PB-GATT - how is the connection established?

Mahendra Tailor — Fri, 13 Oct 2017 14:12:08 GMT

So the implication behind what you are saying is ...

Provisioner sees the provisioning beacon. It wants to use PB-GATT, so it will initiate a connection for a set amount of time using the mac address in that beacon. The provisonee knows it wants to accept PB-GATT provisioning so it interleaves normal adverts which will allow that initiation to work and result in a connection.

I now understand that and I wish the BT SIG had just placed a note to this effect :-)

Kind regards

RE: Ble Mesh PB-GATT - how is the connection established?

Hung Bui — Fri, 13 Oct 2017 14:02:05 GMT

Hi Mahendra,

From my understanding, PB-GATT use Proxy protocol (GATT bearer) so a BLE connection need to be established. The unprovisioned device needs to send normal connectable advertising packet. And the provisioner should established the connection like a normal BLE connection.

After that they can start provisioning via PB-GATT.

Is it the case that there will be additional adverts that the unprovisioned device will send to invite connections? =>Correct if it wants to be provisioned by both options.

If the beacon do PB-ADV it has to be nonconnectable non-scannable as stated in the spec.