5.247 (a) (1) Statement 15.247 (a) (1) Statement Bluetooth devices Date: 27/01/2003 CETECOM S.A.
15.247 (a) (1) Statement 1. Pseudorandom hop selection The generation of the hopping sequence in connection mode depends essentially on two input values: 1. LAP/UAP of the master of the connection 2. Internal master clock The LAP (lower address part) are the 24 LSB’s of the 48 BD_ADDRESS. The BD_ADDRESS is an unambiguous number of every Bluetooth unit. The UAP (upper address part) are the 24 MSB’s of the 48 BD_ADDRESS.
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.247 (a) (1) Statement 2. Equally average use of frequencies According to Bluetooth specifications the channel hopping sequence which has a very long period length (23h 30’) does not show repetitive patterns over a short time interval, but distributes the hop frequencies equally over the 79 hopping channels during a short time interval.
15.247 (a) (1) Statement 3. Receiver input bandwidth According to “Bluetooth specification Version 1.1 – Part A – Radio Specification” and in order to match the transmitter output bandwidth, all Bluetooth devices have input bandwidth of 1 MHz. 4. Synchronization of the receiver with the tranmitted signals In every connection one Bluetooth device is the master and the other one is the slave. The master determines the hopping sequence. The slave follows this sequence.
