NB-IoT Use Cases and Devices: Design Guide

Description

This book presents the cellular wireless network standard NB-IoT (Narrow Band-Internet of Things), which addresses many key requirements of the IoT. NB-IoT is a topic that is inspiring the industry to create new business cases and associated products. The author first introduces the technology and typical IoT use cases. He then explains NB-IoT extended network coverage and outstanding power saving features which are enabling the design of IoT devices (e.g. sensors) to work everywhere and for more than 10 years, in a maintenance-free way. The book explains to industrial users how to utilize NB-IoT features for their own IoT projects. Other system ingredients (e.g. IoT cloud services) and embedded security aspects are covered as well. The author takes an in-depth look at NB-IoT from an application engineering point of view, focusing on IoT device design. The target audience is technical-minded IoT project owners and system design engineers who are planning to develop an IoT application. Introduction About this Book Contents List of Figures About the Author IoT Target Applications Wireless WAN for Internet Access From GSM to Cellular IoT NB-IoT Use Cases Object Tracking/Localization Remote Monitoring/Detection NB-IoT Gateway Cellular IoT Technology Cellular Network Basics Modem Interface NB-IoT Technology Network Deployment Options Cell Capacity Coverage Extension Network Selection Radio Resource Control (RRC) and Random Access (RA) Procedures Power Saving Methods Power Saving Mode (PSM) Extended Discontinuous Reception (eDRX) Release Assistance Indication (RAI) RRC Suspend/Resume Early Data Transmission (EDT) Wake-Up Signal (WUS) Latency Ingredients for NB-IoT Design Concepts NB-IoT Cellular Network Modules Vendor Overview AT Command Interface Unsolicited Result Code (URC) IoT Data Transfer Protocols IP-Based Protocols MQTT (Message Queuing Telemetry Transport) CoAP (Constrained Application Protocol) End-to-End IoT Data Security How Public-Key Cryptography Can Help Message Authenticity and Integrity Public Key Infrastructure (PKI) TLS Handshake and DH Key Agreement Security Hardware and Certifications Server Hosting and IoT Clouds LwM2M Device Management SIM Card or Embedded eSIM Sensors Suppliers and Online Support NB-IoT Network Deployment Roaming and MVNOs Designing an NB-IoT Device RasPi Mockup and Network Tester Low-Power Device Design Manage Immediate RRC Release Optimize Downlink Traffic Scheduling Avoid Coverage Enhancement Levels CE1 and CE2 Optimize Uplink Transmission Matching of Antenna Utilize Sleep Modes Estimate Overall Power Consumption NB-IoT Device Battery Lifetime Calculator Design Concept #1: Environmental Sensor Principle of Operation Functional Description Estimation of Battery Lifetime Local Device Setup Block Diagram/Schematics Board Assembly Layout Design Concept #2: Object Localizer Principle of Operation Functional Description Power Consumption Block Diagram/Schematics Board Assembly Layout Glossary: Explanation of Frequently Used Cellular IoT Acronyms References