Wireless Oom

RNTI (radio network temporary identifier) is used to address the UE (user equipment) on common transport channels.

If dedicated channels are used, then no need for RNTI.

Two types:

1. C-RNTI (cell)

2. U-RNTI(URA)

C-RNTI identifies a UE within a cell, so it can only be used when the UE’s location is known.

Otherwise, U-RNTI is used.

C-RNTI will be allocated to a UE every time it moves to a new cell and conducts a cell-update procedure.

FACH channel also use C-RNTI to whether the data is for me or not.