5G Layers 1-3 with Emphasis on e-CPRI

5G Wireless Technology Training
  • Course:5G Layers 1-3 with Emphasis on e-CPRI
  • Course ID:5G3LECPRI Duration:5 days Where: Your Office (7+ Persons)
  • Available as a private, customized course for your group at your offices or ours and in some cases as a WebLive(TM) class.

  • Download Course Description (PDF)

Course Outline

5G Layers 1-3 with Emphasis on e-CPRI

5G Layers 1-3 with Emphasis on e-CPRI: Day 1

  • 5G Radio: An Introduction
    • 5G Spectrum & Frequency Bands
    • Sub-6GHz, cmW, mmW
    • Spectrum Management & Spectrum Sharing
    • UE 5G NR Radio Requirements
    • 5G requirements for RAN: Bandwidth, power, spectral efficiency, new technology adaptation, latency, signaling load, capacity, coverage, interference, mobility
    • 5G requirements for Core: Network topology, cloud architectures, big data analytics
    • Base Station 5G NR Radio Requirements
    • Common UE and BS Radio Requirements
    • 5G NSA and SA architectures
    • 5G core and 5G-EPC brief overview
  • 5G: New Radio (NR) Physical Layer
    • How 5G will differ from 4G
    • NR channel structure
    • Relation to LTE
    • NR time (slot) and frequency (SCS & RB) structure
    • The new concept of bandwidth part (BWP) and how it is configured/controlled by operator
    • Why flexible numerology?
    • The L1 processing chain
    • OFDM principles (basic introduction, FFT and signal generation)
    • OFDM signal processing (up sampling, decimation)
    • Modulation Schemes (256QAM, 64QAM, 16QAM, QPSK) and evolution from IQ modulator – IQ imbalance, phase errors, DC offset errors
    • L1 Time synchronization, frequency synchronization
    • L1 FEC and LDPC coding and decoding – analysis on decoding performance
    • Code Block Group (CBG) based retransmissions
    • L1 CRC coding and decoding – the BLER concept
    • L1 rate matching
    • The BBU modular architecture (ADC, DAC, Scheduler module, Link Adaptation module, Power control module, MIMO precoder module)
    • The mMIMO antenna panel modular RF chain structure (PA, LNA)
    • The RF traditional (Radio Remote Unite or RF card) chain modular structure (PA, LNA)
    • BBU calibration requirements
    • RRU calibration requirements
    • OFDM signal processing (up sampling, decimation)

5G Layers 1-3 with Emphasis on e-CPRI: Days 2-3

  • 5G 3GPP Physical Layer Channels, Signals and Procedures
    • 3GPP Physical layer procedures for control signaling
    • Synchronization signals and reference signals structure
    • Cell search procedure
    • SS/PBCH structure
    • Random access preamble formats – initial beam establishment
    • Downlink control signaling
    • Uplink control signaling
    • Overview power control
    • Overview transmit timing control
    • 3GPP Physical procedures for user data transmissions
    • Reference signals (DMRS, CSI-RS, TRS, PTRS, SRS)
  • 5G Layer 2 Procedures
    • Explain the L2 transport protocols SDAP, PDCP, RLC, MAC and GTP-U Protocols
    • Describe the contents of the SDAP, PDCP, RLC and MAC Packet Data Unit
    • Describe the SDAP functions in the user plane
    • Explain the PDCP functions
    • Explain the RLC functions
    • Explain RLC transparent, unacknowledged and acknowledged modes
    • Explain the MAC functions
    • MAC HARQ codebook principles
    • Scheduler functionality for UL and DL
    • Scheduler resource allocation (time-frequency grid)
    • How scheduler controls physical layer resources
    • RACH analysis
    • Scheduling requests, BSR, CQI/CSI reports
    • Beam management functions
    • P1, P2, P3 algorithm implementations
    • Explain the main functions & procedures of the transport protocol GTP-U
    • Traces and signaling examples

5G Layers 1-3 with Emphasis on e-CPRI: Days 3-4

  • 5G Layer 3 Procedures
    • Explain the interaction between Radio Resource Control (RRC) and the lower layers in the control plane
    • Distinguish the RRC connected, inactive and idle UE states
    • Detail the functions and services of RRC
    • Explain the RRC signaling flow for SA service connectivity
    • Explain the RRC signaling flow for NSA service connectivity
    • Carrier aggregation
    • Emphasize on SIB contents and accessibility procedures
    • List the main functions and procedures of XnAP signaling protocol
    • List the main functions and procedures of NGAP signaling protocol
    • NAS signaling
    • NAS contents in MME/AMF
    • Paging procedure
    • Traces and signaling examples
  • 5G Mobility
    • Explain Mobility and Dual Connectivity in 5G
    • Describe Inactive and Idle mode mobility in Standalone and Non-Standalone NR
    • SSB control and scheduling
    • UE synchronization
    • Detail the bearer type transitions (MN terminated MCG <-> SN terminated split DRB) in Non-Standalone NR
    • Describe the user plane control transitions
    • Explain Dual Connectivity mobility
    • Explain connected mode mobility in Standalone NR
    • Mobility analysis and examples

5G Layers 1-3 with Emphasis on e-CPRI: Day 5

  • 5G MIMO – Beam forming
    • Massive MIMO general introduction
    • Beamforming and spatial multiplexing principles
    • MAC layer to mMIMO antenna panel interaction
    • Describe how scheduler schedule data on mMIMO antenna panel and the creation of the beams
    • MIMO/Beamforming modules
    • Codebook vs non-codebook transmissions
    • The new concept of Grid of Beams (GoB)
    • Analog vs. digital beamforming
    • e-CPRI standards and description

5G Layers 1-3 with Emphasis on e-CPRI : Course Wrap-up

Course Overview

Course in a Nutshell

5G Layers 1-3 with Emphasis on e-CPRI explores the lower layer 2, upper layer 2, and layer 3 protocols and procedures for radio technology involved in 5G RAN New Radio (NR), the e-CPRI and MIMO, and the MIMO/Beamforming techniques.


Customize It

The duration and content of 5G Layers 1-3 with Emphasis on e-CPRI can be customized to your participants’ backgrounds and needs.

Audience / Prerequisites

Aimed At

This 5G Layers 1-3 with Emphasis on e-CPRI course is for those who need to understand 5G protocols to aid their network implementation from 3GPP to oRAN.



Those wishing to take 5G Layers 1-3 with Emphasis on e-CPRI should have a good understanding of LTE/LTE-A and wireless communications.