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Reply To: BTS Clock

Wallis Dudhnath

Synchronisation in Telecommunications networks (ISDN, Digital Networks, GSM, 3G, 4G, 5G, etc..) is the process of aligning the time scales of transmission and Switching Equipment (e.g. Stored Program Control nodes) so equipment operations occur at the correct time and in the correct order. Synchronisation requires the receiver clock to acquire and track the periodic timing information in a transmitted signal.

Poor synchronisation can lead to the following issues:-

– Degraded speech quality and audible clicks
– Degraded data traffic throughput
– Call setup
– Incomplete Facsimile messages
– Freeze-frames and audio pops on video transmissions
– Call disconnects during mobile call hand-off
– Partial or complete traffic stoppage
– Corrupt data sessions for 3G/4G/5G
– Errors placed in CDRs and Logs

A complete Network Synchronisation plan must be in place that looks at the Clocks (Stratum) used, Jitter and Wander
parameters, Primary and Secondary Synchronisation Clock sources, etc.