NB-IoT Use Cases and Devices: Design Guide

ISBN-13: 9783030849757 / Angielski / Miękka / 2022 / 122 str.

Kersten Heins

Opis

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.

Spis treści

Introduction

About this Book

About the Author

     Glossary

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

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

References

 

 

O autorze

Kersten Heins is a Freelance Technical Editor and Blogger (www.chip-info.com) for IoT Solutions and Embedded Security. After his graduation he spent 30 years in the industrial computing and semiconductor industry as a design engineer and in various marketing positions.