LTE Technical Overview
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With 4G mobile technology already rolled out by over 700 operators globally, standards bodies, manufacturers and operators are looking towards the next generation of mobile technology. The UMTS standards body, 3GPP has created a plan to achieve ambitious goals for where mobile communications should go. This is Long Term Evolution – LTE.
This overview course describes the motivations, timescales and goals of LTE as well as identifying the technical features of UMTS that will change to support LTE. This includes, notably, the core network which has its own evolution plan, SAE, System Architecture Evolution.
The orientation of the course is such that it is suited to both non-specialists and technical radio-oriented planners, architects, etc. New or changed areas described include the use of MIMO antenna systems, OFDM-based multiple access as well as the architectural changes.
The Mobile Arena (2 topics)
- UMTS, HSPA and Mobile WiMAX
- Goals of LTE: Performance Aims and Objectives
Overview of the Technology (2 topics)
- Access Network
- Core Network
Technology: Moving Antennas On (2 topics)
- MIMO Concepts
- Space Time Diversity Coding and Spatial Multiplexing
Technology: Orthogonal Frequency Division Multiplexing – OFDM (6 topics)
- Proposed use in LTE
- Uplink and Downlink are Different:
- Changes to Modulation
- Forward Error Correction
Core Network Aspects - SAE – System Architecture Evolution (7 topics)
- LTE Architectural Concepts
- Evolved Packet Core - EPC
- Mobility Management
- Serving Gateway
- PDN gateway
- User Plane Entity
- The Application Protocol Interfaces
Security Aspects Beyond 3G (1 topic)
- Features and Opportunities
The course assumes some top-level familiarity with existing UMTS systems but no specific RF expertise is required.