HO
Handover
Mobility
Definition
Transfer of a connected UE from a source cell to a target cell. In NR the UE applies an RRCReconfiguration containing reconfigurationWithSync, which starts timer T304; T304 expiry is a reconfiguration-with-sync failure.
Evolution Across Releases
- NR handover is described in TS 38.300 clause 9.2.3.2.
Related Specifications
TS 36.331
Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification
Protocol
Rel-19TSMobilityUpdated 2026-10-16
TS 38.300
NR; NR and NG-RAN Overall description; Stage-2
Architecture
Rel-19TS5G-AdvancedUpdated 2026-10-16
TS 38.331
NR; Radio Resource Control (RRC); Protocol specification
Protocol
Rel-19TSMobilityUpdated 2026-10-16