
Follow how 4G LTE and LTE advanced standards were standardized by 3GPP, uniting telecom vendors like Siemens and Huawei with operators such as Orange.
Learn 4G nomenclature by defining the radio network as LTE, the evolved packet core as SAE, and the overall system as EPS, with user equipment linking to the access network.
Set design targets for 4G LTE with downlink 100 Mbps and uplink 50 Mbps. Explain flexible bandwidth 1.4–20 MHz, handover to 3G, and 2–4x spectral efficiency.
Learn how eNB selects an MME from a pool of MMEs in the 4G core network, avoiding MME relocation and reducing signaling load.
Explore how the PDN-GW in the 4G core assigns IP addresses, acts as the internet gateway, anchors inter-SGW handovers, and enables deep packet inspection with DiffServ Code Points for QoS.
Explain gtpv2-c control signaling for creating and modifying eps bearers and tunnels across s5, s8, and s11, with s10 mmes signaling during handover and tunnel switching, carried over udp/ip.
Explore how the S1-AP operates on the S1-MME interface between eNB and MME to transfer UE context, establish ERAB and GTP tunnels, and set up radio bearers.
Explore how the diameter protocol links the MME and HSS to download user data. See how QoS policy and charging rules move from PCRF to the PDN gateway over S7/Gx.
Explore how 4G networks use PLMN-ID (MCC+MNC), MME group IDs and GUMMEI, TA IDs, and ECGI to create globally unique identities for E-UTRAN cells and the core.
Understand how 4g ue identifiers GUTI, M-TMSI, and S-TMSI form from MCC, MNC, and MME ID to provide a globally unique temporary identity, replacing IMSI over the air for security.
The EPS connection management state shows whether the UE has an active link to 4G core; MME uses RRC with eNB to move ECM from idle to connected and back.
Explore how the traffic flow template function links uplink traffic to PDN gateway and maps it to EPS bearer using TCP or UDP board numbers and DiffServ code points.
Explain the LTE attach procedure for default bearer establishment, from MME selecting the PDN gateway to S-GW/PGW GTP signaling and PCRF-driven IP-CAN decisions.
Shows how idle UE with an inactive eps bearer is paged via S1AP, with GTP signaling carrying IMSI and TMSI to trigger SGW buffering and bearer activation for downlink data.
Learn the X2-based handover procedure in 4G LTE, from RRC measurement reports and ERAB negotiation to X2AP messaging, path switch, and bearers switching from source eNB to target eNB.
Explore the 4g authentication and key agreement procedure, detailing Milenage-based vectors and the K_ASME, K_eNB, K_NASint, K_NASenc, K_RRCenc, K_RRCint, and K_UPenc keys used to secure NAS and RRC signaling.
Trace the eps key hierarchy from the master key to ck, ik, and k_asme, then derive nas, enb, and rrc encryption and integrity keys for both network and user equipment.
Understand how VoLTE uses SRVCC and CSFB to support circuit-switched voice calls by handing over to 2G or 3G networks when 4G coverage is unavailable or during call setup.
Understand how session initiation protocol enables signaling in the IMS network to create, modify, and terminate sessions, with sdp carried inside sip for negotiating ip addresses, ports, codecs, and bandwidth.
Explore how SIP provides user location, availability, and capabilities services via SDP and supports session setup and session management signaling for voice calls.
Discover how IMS enables 4G VoLTE using SIP on the SGi interface between the PDN gateway and IMS, with diameter signaling across Sh, Rx, and Cx to HSS and PCRF.
Learn how the service centralization and continuity application server enables mid-call handovers from 4G to 2G or 3G, ensuring voice call continuity via the single radio voice call continuity mechanism.
Explore how user equipment registers with the IMS network via PCSCF discovery, obtaining the PCSCF IP address through PDN gateway assignment, static configuration, or DHCP, with optional DNS translation.
IMS enables subscription to the proxy call session control function so user equipment and the application servers are notified of registration status changes when a SIP network de-registers a user.
In the continuously evolving and growing landscape of mobile telecommunications, the 3GPP (3rd Generation Partnership Project) 5G standard has just been released. But legacy 4G technology is still being deployed in the market. Since the commercial launch of LTE in 2010, LTE technology has been widely deployed by Mobile operators around the world. Today LTE is the dominant market technology and it will continue to do so for many years to come.
So for those who aspire to start career in mobile telecom companies, it is quite rewarding to invest in the 4G LTE technology. For those already in Mobile network operators this will enhance their portfolio and career prospects.
This LTE training is comprehensive and indepth, so that you may get started with this LTE cellular technology as soon as possible. This course is designed to provide you with necessary functional knowledge possible in shortest possible time.
The course comes with 100% MONEY-BACK GUARANTEE.
This course is targeted for:
Telecom professionals
Telecom students
Networking students
Course Contents:
Section 1: Introduction
Evolution To 4G LTE
Standardization of 4G LTE/LTE Advanced
Three Major Parts of 4G LTE Network
Nomenclature For 4G Network
Evolution to an all IP system in 4G LTE
4G LTE Design Targets
Section 2: Overall 4G EPS Architecture
Evolved Node B (eNB) Functions in 4G LTE
MME Selection by eNB
4G LTE EPS Bearer
4G Evolved Packet Core (EPC) Architecture
Mobility Management Entity (MME)
Serving Gateway (S-GW)
Packet Data Network Gateway (P-GW)
Policy and Charging Rules Function (PCRF)
Policy and Charging Enforcement Function (PCEF)
Home Subscriber Server (HSS)
Section 3: 4G EPS Interfaces
GTPv1-U Traffic Interfaces
GTPv2-C Interfaces
S1AP (S1 Application Protocol) on S-MME Interface
X2 Interface Protocols
Diameter Protocol Interfaces
Section4: Identifiers in 4G LTE Network
4G LTE Network Identifiers-MMEGI, MMEI, GUMMEI, TAI, ECGI, Access Point Name
UE Identifiers-IMEI, IMSI, MSISDN, GUTI, M-TMSI, S-TMSI, MMEC
Tracking Areas in 4G LTE
MME Pool Areas in 4G LTE
Serving Gateway Service Areas in 4G LTE
Section 6: UE State Management in 4G LTE
Section 7: Characteristics of EPS Bearer in 4G LTE
EPS Bearer Types: Default And Dedicated Bearers
EPS Bearer States: 1. Active 2. Inactive
4G EPS Bearer Quality of Service (QoS)
QoS Class Identifiers (QCIs) in EPS Bearer
Allocation And Retention Priority (ARP) in EPS Bearer
Template Flow Template Function in EPS Bearer
Section 8: 4G LTE Evolved Packet Core Procedure
UE POwer On Procedure-LTE Attach Procedure, UE Registration, Default Bearer Establishment
Tracking Area Update Procedure
UE Paging Procedure
X2-based Handover Procedure in 4G LTE
S1 Based Handover in 4G LTE
UE Triggered Service Request in 4G LTE
Section 9: Security in 4G LTE
Basic 4G Security Terminologies
4G LTE Roaming Architecture
4G Authentication And Key Agreement (AKA) Procedure
4G LTE Security Key Hierarchy
Encryption And Integrity Protection Algorithms in 4G LTE
Section 10: Voice Over LTE (VoLTE)
What are SRVCC and CSFB in VoLTE?
Voice Codecs For VoLTE
Session Initiation Protocol in VoLTE
IP Multimedia Subsystem (IMS) in 4G VoLTE
Call Session Control Functions (CSCFs) in IMS
Telephony Application Server (TAS) in IMS
Service Centralization And Continuity (SCC) Application Server in IMS
IMS Connectivity Requirement & EPS Bearers for IMS in VoLTE
UE Registration with IMS in VoLTE-PCSCF Discovery
UE Registeration with IMS in VoLTE-Signal Flow
SIP signalling for Voice Over LTE (VoLTE) Call
IMS Media Bearer Establishment For Voice over LTE (VoLTE)
Tear Down Of Voice Over LTE (VoLTE) Call
Section 10: LTE Air Interface