What is Identity request LTE?

Ø The identification procedure is used by the network to request a particular UE to provide specific identification parameters, e.g. IMSI, IMEI etc… Ø The network initiates the identification procedure by sending an IDENTITY REQUEST message to the UE.

What is LTE service request?

A Service Request is a procedure an UE executes when it is in Idle mode and needs to establish the bearers to send data or it needs to send signaling to the MME. The UE Triggered Service Request procedure is outlined in Figure 17.8.

What is identification method used in LTE call flow in order to identify UE?

The UE uses a UL-SCH allocation to send the RRC Connection Request message. The UE is identified by the C-RNTI that was assigned in the Random Access Response message. The message contains a UE identity (typically S-TMSI: MMEC+M-TMSI). The message also includes the establishment cause for the RRC connection.

What is ESM information request?

The ESM information request procedure is used by the network to retrieve protocol configuration options like APN etc. from the UE during the attach procedure. This procedure is used as the UE has indicated (in the PDN CONNECTIVITY REQUEST) that it has ESM information that needs to be sent with security.

What is dedicated bearer in LTE?

The first EPS bearer that is activated when a PDN connection is established in LTE is called the “default bearer”. This bearer remains established during the lifetime of the PDN connection. Additional EPS bearers that may be activated for a PDN connection are called “dedicated bearers”.

What is the purpose of the service request procedure?

The purpose of the service request management practice is to support the agreed quality of a service by handling all pre-defined, user-initiated service requests in an effective and user-friendly manner.

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 create session request?

MME forwards a Create session request to the selected S-GW, including the APN and QoS settings that have been selected so far for the EPS bearer. This request indicates the IP address of the P-GW selected for the session. This procedure is just a request.

How is LTE transmitted?

The LTE network is based on Internet Protocol (IP) standards, the kind that delivers Web pages to your computer, and adds voice data to the transmission streams [source: 4G Americas]. It uses a schematic called OFDMA, or Orthogonal Frequency Division Multiple Access, which is similar to the OFDM approach in WiMAX.