School of Advanced Communications Technologies

E-UTRAN: Architecture and Protocols

Course-DescriptionThis 3 day course encompasses all aspects of the LTE radio interface and eUTRAN functions and protocols.  A full and detailed description of the LTE radio interface is given including an introduction to OFDMA and its application in LTE. The LTE radio interface layer 2 protocols are examined and the upper control plane layers of RRC and NAS are also covered.

The eNB is the focus of the EUTRAN therefore this course will detail the functions of the eNB and the supported interfaces, these include the Uu, S1_MME, S1_U and X2

The protocols and operation of the S1 interfaces, control plane and user plane are described, with examples of typical signalling and data transfer procedures given.  Since the S1 is terminated at the MME and SGW, the general operation and functions of these nodes will also be described.

The X2 interface protocols are described and the typical operation of the X2 is shown with signalling scenarios, such as handover and interference coordination

Why you should attend this course?

  • Relate theoretical diagrams of the eUTRAN with practical implementations.
  • Detailed understanding of each network node, eNB, MME SGW
  • Be fully conversant with the eUTRAN interfaces and protocol sets.
  • Be able to describe the detailed relationship between  NAS and AS protocols, i.e. RRC functions and their relationship with eMM, eSM and the S1 procedures
  • Understand and explain the X2 interface functions and describe the X2AP protocol.
  • Understand and explain the S1_U and S1_MME interface and describe the protocol stacks for each interface.
  • Follow detailed procedures and appreciate the function of each interface for various scenarios such as, Registration, Bearer Functions, Handover, QoS Modifications.
  • Use the theoretical knowledge gained to follow real network protocol captures.
  • Confidence to make decisions on technology implementation and procurement that are commercially viable, minimise risk, and in line with the strategy and goals of the wider organization.
  • A solid foundation on which to plan and facilitate advanced technology projects – with higher competency levels bringing operational efficiencies, cost savings, and time-to-market advantage

Course Contents

  • LTE Architectural Review
  • LTE Radio Physical Layer
  • EUTRAN Identities and Mobility
  • SCTP Primer
  • S1 Interface
  • X2 Interface
  • EUTRAN End to End Signalling Procedures