Prasanna Sahu

LTE security architecture defines the security mechanism for both NAS layer and AS layer. No HO related security is covered in this document. LTE Security Distribution NAS security Carried out for NAS messages and belongs to the scope of UE and MME. In this case NAS message communication between UE and MME are Integrity protected and Ciphered with extra NAS (more ..)

UE Initial Access is the process between an UE is switched on and before sending UE specific signaling or data. The different steps for initial access are described below. Cell Search and Selection Receive System information Random access procedure Cell Search and Selection In order to know the cell search and selection first we have to know the physical signals (more ..)