Section 7: Characteristics of EPS Bearer in 4G LTE. Mobile Subscriber Identification Number (MSIN) identifying the mobile subscriber within a PLMN. UE Measurements  In the HSS, a key to be used along with an IMSI in authenticating subscribers, and QoS profile to be used by the user are stored. In case of drop in power measured using RSSI, either UE or network initiates the handover or cell re-selection is carried out. MME will send eNB initial context setup message containing S1 interface context setup request, NAS attachement accept and activate default bearer request. The UE response message back to the MME with NAS ciphering and integrity protection. The LTE call flow navigates over the elements of the network going through certain steps in order to complete its end-to-end signaling from the user equipment (UE) all the way to the rest of the network components. NOTE: UE can be either voice centric or data centric. Each MME has three main identities. protocol stack  The TMSI is used instead of IMSI to protect subscriber from being identified and also make life more difficult to radio interface eavesdroppers. At this time the Release 8 specifications are not yet fully defined. An LTE network area is divided into three different types of geographical areas. Introduction . Every MME pool area is controlled by one or more MMEs on the network. Create session request message from the Mobility Management Entity (MME) to the Serving Gateway(SGW) to create a GTP tunnel. It is used for Frequency Selective Scheduling of PUSCH, not  PUCCH. It is expressed in decibels per milliwatt (dBm). Make it easier to find … GUTI is stored in TIN parameter which is MM context of the LTE UE. The communication starts with eNodeB and the UE requesting Radio Resource Connection (RRC LTE). What is LTE? The S-GW service areas - This is an area served by one or more serving gateways S-GW, through which the mobile can move without a change of serving gateway. This usage setting basically tells the network what’s more important for that UE (voice or data). This message is sent via S1AP interface and it contains the initial UE message which includes: the PDN Connectivity Request , the Tracking Area Identify (TAI) and E-UTRAN Cell Global Identifier (ECGI). LTE Features  Including HSS, PCRF and also SGSN and GGSN from 3G networks. Each cell in the network has three types of identity. The reader is … If the GUTI is wrong , will the signaling stop after SIB2 Msg? The message contains: configuration parameters for uplink RLC, UL-SCH, Power Head Room (PHR) and Uplink Power Control. An erroneous block is defined as a Transport Block of which the the cyclic redundancy check (CRC) is wrong. Requested URL: www.udemy.com/course/4g-lte-technology-evolved-packet-core-protocols-lte-architecture-volte/, User-Agent: Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.36.