The ESM ( EPS Session Management) and EMM (EPS Mobility Management) entity is a control plane function which supports all aspects of signalling for PDN (Packet Data Network) session management, such as EPS Bearer Activation and Modification.
What is NAS ESM?
In LTE, the NAS protocol is used between the User Equipment and the MME in order to facilitate EPS Mobility Management and EPS Session Management procedures.
What is EMM attach?
When UE starts attach or combined attached procedure, it moves to a new state called EMM-REGISTERED-INITIATED. In this state UE waits for response from the network.
What is RRC in LTE?
The Radio Resource Control (RRC) protocol is used in UMTS, LTE and 5G on the Air interface. It is a layer 3 (Network Layer) protocol used between UE and Base Station. … The operation of the RRC is guided by a state machine which defines certain specific states that a UE may be present in.
What is NAS in 5G?
Non-access stratum (NAS) is a functional layer in the UMTS and LTE wireless telecom protocol stacks between the core network and user equipment. This layer is used to manage the establishment of communication sessions and for maintaining continuous communications with the user equipment as it moves.
What is Gummei?
The GUTI (Globally Unique Temporary Identity) has two main components, the GUMMEI (Globally Unique MME Identifier) that uniquely identifies the MME that allocated the GUTI and the M-TMSI (M-Temporary Mobile Subscriber Identity) that provides for an unambiguous identity of the UE within this MME.
What is LTE call flow?
With Long Term Evolution (LTE) comes a myriad of new and exciting attributes. One of these is the LTE call flow itself. In fact, call flow and signaling is unique for LTE, and is driven by 3GPP standards. Call flow is how signaling and sessions are created across an LTE network.
What is Guti in LTE?
What is the GUTI? In LTE, the GUTI is the Globally Unique Temporary ID, and identifies the mobile device to the LTE network. … By allocating a temporary ID to the device, the MME maintains the security of the IMSI (International Mobile Subscriber Identification) when transmitting over radio interface.
What are LTE protocols?
What are LTE protocols & specifications?
- Air Interface Physical Layer.
- GPRS Tunnelling Protocol User Plane (GTP-U)
- GTP-U Transport.
- Medium Access Control (MAC)
- Non-Access-Stratum (NAS) Protocol.
- Packet Data Convergence Protocol (PDCP)
- Radio Link Control (RLC)
- Radio Resource Control (RRC)