Cellular IoT Air Interface

In a bid to support the growing IoT market, the 3GPP have introduced a number of enhancements to the existing 2G and 4G air interfaces in their Release 13 specifications. This course therefore addresses these modifications in terms of the three key Cellular IoT air interface technologies; EC-GSM-IoT, LTE-M and finally NB-IoT.

Click on the links below for a more detailed breakdown of each module.


  • Duration: 2 hours
  • Topic areas covered include
  • Benefits of EC-GSM-IoT
  • EC-GSM-IoT Air Interface
  • Coverage Classes
  • Logical Channels
  • MCS (Modulation and Coding Schemes)
  • Radio Link Control / Medium Access Control Operation
  • Overlaid CDMA
  • EC-GSM-IoT Operation
  • Initial Procedures
  • Packet Transfer
  • Security Enhancements
  • Power Efficient Operation
  • Power Save Mode
  • Extended Discontinuous Reception
  • Duration: 2 hours
  • Topic areas covered include
  • Benefits of LTE-M
  • LTE-M Terminology
  • Coverage Enhancement Levels
  • Supported Frequency Bands
  • LTE-M Device
  • Handset Category M1
  • LTE-M Channels
  • Channels used for LTE-M Operation
  • PBCH Repetition
  • MPDCCH and New DCI Formats
  • PDSCH Scheduling
  • PDSCH Carrying SIB1-BR
  • Narrowband Hopping
  • PRACH for LTE-M
  • LTE-M Operation
  • RRC Connection Establishment
  • Session Establishment
  • Mobility
  • Power Efficient Features
  • PSM (Power Save Mode)
  • Extended Discontinuous Reception
  • Duration: 2 hours
  • Topic areas covered include
  • Benefits of NB-IoT
  • Flexible Deployment Options
  • LTE Features Not Supported in NB-IoT
  • NB-IoT Device
  • NB1 Category
  • Power Classes
  • NB-IoT Downlink Air Interface
  • Downlink Frame Structure
  • NRS (Narrowband Reference Signals)
  • Narrowband Synchronization Signals
  • New Narrowband Downlink Channels
  • Impact of “In-Band” Deployment
  • NB-IoT Uplink Air Interface
  • New Narrowband Downlink Channels
  • 15kHz Uplink Frame Structure
  • 3.75kHz Uplink Frame Structure
  • Uplink RU (Resource Unit)
  • Narrowband Physical Random Access Channel
  • NB-IoT Operation
  • NB-IoT Cell Acquisition
  • Narrowband System Information Messages
  • NB-IoT Attach Procedure
  • Downlink and Uplink Resource Allocation
  • Multi Carrier Operation
  • NB-IoT Optimization Features
  • CIoT Control Plane Optimization
  • PSM (Power Save Mode)
  • Extended Discontinuous Reception
  • Introduction to 5G
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Duration 6 hours

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