US 12,443,403 B2
Firmware upload using BLE connection to Bluetooth mesh firmware distributor node
Tamas Somhegyi, Budapest (HU)
Assigned to Silicon Laboratories Inc., Austin, TX (US)
Filed by Silicon Laboratories Inc., Austin, TX (US)
Filed on Aug. 8, 2023, as Appl. No. 18/231,473.
Prior Publication US 2025/0053403 A1, Feb. 13, 2025
Int. Cl. G06F 8/65 (2018.01); H04W 4/80 (2018.01)
CPC G06F 8/65 (2013.01) [H04W 4/80 (2018.02)] 18 Claims
OG exemplary drawing
 
1. A method of uploading a new firmware image to one or more network devices in a Bluetooth mesh network, comprising:
transmitting from an initiator node a standard Bluetooth Mesh packet, referred to as a Mesh Firmware Distribution Upload Out of Band (OOB) Start Protocol Data Unit (PDU), which indicates an out of band firmware upload is being commenced;
uploading the new firmware image from the initiator node to a distributor node, wherein the new firmware image is transferred using Bluetooth Low Energy (BLE) protocol data units (PDUs);
transmitting from the initiator node a standard Bluetooth Mesh packet, referred to as a Mesh Firmware Distribution Upload Get PDU, to obtain status of the firmware upload; and
using the distributor node to transmit the new firmware image to the one or more network devices using standard Bluetooth Mesh PDUs.