NB-IoT - Design Details & System Engineering

Chapter 1: Introduction, Playground and Alternatives of NB-IoT (1 – 2 h)

The IoT-marketplace in terms of use cases, numbers and volume
Long range vs short range IoT-technologies
Differences among NB-IoT, EC-GSM and CAT-M1
How to define and determine the QoS in IoT-environments
Introducing NB-IoT network architecture
High level operation of selected use cases in NB-IoT
Pet tracking, metering and others, considering IoT-specifics like high latency communication HLComm, eDRX and PSM

Chapter 2: Diving into the Physical Layer of NB-IoT (4 – 5 h)

Introducing Maximum Coupling Loss, Link Budget, Receiver Sensitivity and Signal to Noise Ratio
MCL in genuine LTE for different channels, MCL in NB-IoT for different channels
How to determine the coverage area of a radio system
Coverage enhancements in NB-IoT
Focus is on the use, simulation and operation of blind repetitions
The Downlink OFDMA-grid in NB-IoT
Allocation and Permutation of physical signals and channels to the OFDMA-grid
e.g. PSS; SSS, NPDSCH, NPDCCH, ...
Uplink options and their operation and characteristics
Single-tone 3.75 kHz, single-tone 15 kHz and multi-tone 12x15 kHz, reference signals, modulation and symbols
Operation of the NPRACH
The random-access procedure in the PHY of NB-IoT
Channel coding and HARQ in NB-IoT
TBCC and turbo coding

Chapter 3: Protocol Stack and Operation of NB-IoT (3 – 4 h)

Protocol Stack of NB-IoT
Control Plane and User Plane
Cell Search, Random Access and RRC-connection establishment in NB-IoT
Changes to protocols and their functions
MAC, RLC, PDCP, …
Attachment of an NB-IoT UE to the network
Basic procedure, specifics of NB-IoT, discussion of options and timer values for PSM and eDRX
eDRX and PSM in operation
Specifics and differences
Device triggering
MSISDN-less operation
Data transfer through the user plane
User plane CIoT Optimizations
Data transfer through the control plane
Control plane CIoT Optimizations
Security in NB-IoT
Use of SIM and future, key generation, distribution and update, operation

Chapter 4: Performance Analysis and Use Cases (3 – 4 h)

Calculating the real user throughput rates under ideal conditions
taking the previous chapters into account
Calculating battery lifetimes for different use cases
Calculating throughput rates and latencies for different conditions
Applicability of NB-IoT or alternative technologies like CAT-M1 for different use cases and different conditions

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