GSM Normal duration burst [Under GSM]
Below diagram illustrates power vs time map for GSM normal duration (48/13 μs, 3GPP TS 45.010:5.7.1) bursts (i.e.Normal burst, Frequency correction burst, and Synchronisation burst, 3GPP TS 45.002:5.2) as per 3GPP TS 45.005:Annex B.Above plot was drawn with gnuplot. Please find the script and related data files at Let us discuss Telecom.
Normal burst
Tail bits 3 |
Encrypted bits 58 |
Training sequence 26 |
Encrypted bits 58 |
Tail bits 3 |
Guard period 8.25 |
Frequency correction burst
Tail bits 3 |
Fixed bits 142 |
Tail bits 3 |
Guard period 8.25 |
Synchronisation burst
Tail bits 3 |
Encrypted bits 39 |
Synchronisation sequence 64 |
Encrypted bits 39 |
Tail bits 3 |
Guard period 8.25 |
References: GSM book by Mouly and Pautet.
© Copyright Samir Amberkar 2013