18818511. RACH-LESS CONDITIONAL HANDOVER (Samsung Electronics Co., Ltd.)
Contents
RACH-LESS CONDITIONAL HANDOVER
Organization Name
Inventor(s)
Kyeongin Jeong of Allen TX (US)
Anil Agiwal of McKinney TX (US)
Ravindranath Kanamangala of Plano TX (US)
RACH-LESS CONDITIONAL HANDOVER
This abstract first appeared for US patent application 18818511 titled 'RACH-LESS CONDITIONAL HANDOVER
Original Abstract Submitted
A random access channel (RACH)-less conditional cell switch is provided. A user equipment (UE) receives and stores a candidate cell configuration including an execution condition of a conditional cell switch to the candidate cell. The UE selects the candidate cell as a target cell for the conditional cell switch on determination that the execution condition is met. The UE determines whether a valid timing advance (TA) and a valid uplink (UL) grant for initial UL transmission to the target cell is available. When a valid TA and a valid UL grant are available, UE transmits initial UL transmission to the target cell using the valid TA and the valid UL grant. When a valid TA is unavailable, the UE performs random access procedure to the target cell. When a valid UL grant is unavailable, the UE transmits a scheduling request to the target cell.
