5G Handover Mechanisms: The Complete Guide

Ever wondered how your call stays connected while you’re speeding on a highway?

The answer: Handover — the seamless transfer of your connection from one cell to another.
But 5G takes handover to a whole new level. Here’s what you need to know:

  • TYPE 1: Intra-gNB vs Inter-gNB → Same site, different cell? Intra-gNB (fastest!) → Moving between sites? Inter-gNB kicks in

  • TYPE 2: Xn-Based vs N2-Based → Xn = Direct gNB-to-gNB (lower latency) → N2 = Via AMF when Xn isn’t available

  • TYPE 3: 4G↔5G Inter-RAT (EN-DC) → Your phone connected to BOTH 4G & 5G simultaneously → Best of both worlds for NSA deployments

  • TYPE 4: Conditional Handover (CHO) :new_button: → Game-changer in 5G! → Multiple target cells pre-configured → UE decides when to execute → Drastically reduces handover failures

  • TYPE 5: DAPS Handover :rocket: → “Make before break” approach → ZERO interruption! → Both links active during transition → Critical for URLLC (gaming, V2X, industrial)

The evolution from “break before make” to “make before break” is what makes 5G mobility truly seamless.

Key Takeaway: 5G isn’t just about speed — it’s about smarter mobility. CHO and DAPS ensure you stay connected even at 300+ km/h! :high_speed_train:

:speech_balloon: Which handover mechanism interests you most?

LinkedIn: :backhand_index_pointing_down:

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