What is the difference between soft and hard handoff?

What is the difference between soft and hard handoff?

  • Tanu
  • 26 Dec 2018
  • 73175 Views
  • 12 Answers
Your Answer

Hard Handoff: whenever call cannot be maintained and latching of mobile station becomes lose with BTS loosing frequency sync. or extremely low power, then handover is done on new frequency channel of existing or new BTS. since frequency channel has to be changed and mobile has single antenna so currently used frequency channel has to be stopped before activating new frequency channel to maintain the call. Hence called first break then make connection.

Soft Handoff: Occurs due to low power or poor signal from one BTS (better we call CDMA BTS), since all BTS uses same frequency in CDMA connection is transferred from one channel to another channel without stoping the current channel because both current and new channels have same frequency, (In CDMA channels are characterized by Codes), hence there is a short time when mobile is connected to both BTS and recieves the signla from which it is getting stronger signal and after then disconnects the previous channel.

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