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Question 20289
JEE Physics · Hard

Principles of Communication: Mobile Communication MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Mobile CommunicationHardQuestion 20289

Question

Handoff (handover) in mobile cellular systems means:
  1. A
    Switching the phone off and on
  2. B
    Transferring an active call from one base station to another as the user moves
    Correct
  3. C
    Upgrading network speed mid-call
  4. D
    Encoding the voice signal differently

Correct answer

Transferring an active call from one base station to another as the user moves

Explanation

As a mobile user crosses cell boundaries, the network automatically transfers the radio link to the new cell's base station without dropping the call. Hard handoff (GSM): break-before-make. Soft handoff (CDMA): simultaneous connection to both cells → diversity gain.

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