Section: 5.2.2.6 T430 expiry
Content: The UE shall: 1> if T430 for serving cell expires and if in RRC_CONNECTED: 2> inform lower layers that UL synchronisation is lost; 2> acquire SIB19 as defined in clause 5.2.2.3.2; 2> upon successful acquisition of SIB19: 3> inform lower layers when UL synchronisation is obtained; NOTE: The exact time when UL synchronisation is obtained (after SIB19 is acquired) is left to UE implementation, which can be from the subframe indicated by epochTime and optionally before the subframe indicated by epochTime.