Cheepsync: tIMe synchronIzAtIon
Protocol
The basic CheepSync mechanism uses the broad- caster mode of BLE to transmit a single adver- tisement packet from the beacon (transmitter) unit to the control (receiver) unit. The broad- casted message contains:
• The transmitter’s current timestamp value, which is a counter field that increments every interval millisecond, and is the esti- mated local time at the transmission of the advertisement packet;
• The aggregate delay incurred during the transmission of the previous packet