User equipment (UE) can detect a Radio Link Control (RLC) unrecoverable
error and a Radio Link (RL) failure. The two errors are handled
differently while the UE is in a dedicated channel (DCH) state. The RL
failure leads to execution of Radio Access Bearer (RAB) release steps,
characterized by utilizing respective timer values to determine if
associated RABs should be released. The RLC unrecoverable error is not
permitted to execute the RAB release steps. This prevents unnecessary
dropping of services. The UTRAN can optionally include and set the
indicators to command the UE to perform the indicated RLC
re-establishmentprocedure.