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Learning path 07

Wireless Technologies

A technology name is the start of a question. Read its modes, documents and conditions, then compare the evidence against the product’s required service.

Begin with the evidence →Explore the sequence
Sequence
7 modules
Available now
Modules 07.1–07.7
Prerequisites
Paths 02, 05 and 06
Recurring case
Node and gateway
The path contract

Read the mode. Defend the choice.

For RF, systems and product engineers comparing connectivity or positioning options.

Prepare

Signals & Modulation, RF Systems and Antennas & Propagation supply the waveform, budget and spatial evidence.

Scope

Learn how to read source hierarchies, compare operating states and expose uncertainty. Measurement execution and jurisdictional determinations belong to later paths.

Whole-path outcomes
  • Trace a claim to a versioned authoritative source.
  • Compare delivery, latency, state energy and infrastructure.
  • Connect RF/antenna and coexistence constraints.
  • Defend a candidate and its next experiment.
The learning sequence

Seven connected decisions.

Modules 01–07 are available. Build an ungraded connectivity portfolio review; these lessons do not award certification.

  1. 01

    How to Read a Wireless Standard & System

    Trace one product mode through documents, conditions, versions, and unresolved evidence.

    90–120 min · estimated
    10 sections
    • Five range claims, five different questions
    • Define the product mode before opening the standard
    • Identify who owns each document
    • Read requirements in their actual scope
    • Build a compatible version chain
    • Trace an RF number with its conditions
    • Connect PHY claims to MAC and state behavior
    • Separate qualification from market authorization
    • Review changes without rewriting history
    • Complete and audit the evidence card
    Open module
  2. 02

    Personal, Proximity & Low-Rate Mesh Technologies

    Compare discovery, telemetry, ranging, mesh, and state energy on a common basis.

    90–120 min · estimated
    10 sections
    • “Short range” hides different jobs
    • Topology determines who stays awake
    • Read Bluetooth LE by PHY and state
    • Separate IEEE 802.15.4 from its ecosystem
    • UWB ranging needs a timing budget
    • Proximity changes coupling and energy ownership
    • Build a complete event and sleep ledger
    • Discovery and crowded spectrum change service
    • Fit the radio and antenna into the product
    • Choose modes and the next current trace
    Open module
  3. 03

    Wi-Fi as an RF System

    Connect resources, antennas, adaptation, and medium access to delivered service.

    90–120 min · estimated
    10 sections
    • A headline rate fails the gateway requirement
    • Identify the standard, certification, and product
    • Band and channel need a regional context
    • Follow the OFDM resource budget
    • MCS and streams change rate and RF demands
    • Antenna count does not guarantee MIMO rank
    • Medium access consumes time and energy
    • A connection moves through an envelope
    • Concurrent radios share a real RF product
    • Specify allowed modes and a concurrency plan
    Open module
  4. 04

    Low-Power Wide-Area Networks

    Compare coverage, airtime, capacity, infrastructure, and regional dependencies.

    90–120 min · estimated
    10 sections
    • Link budget is not a distance guarantee
    • Freeze the remote fleet’s traffic
    • Explain the coverage mechanisms and their price
    • Separate modulation, protocol, and region
    • Calculate airtime before discussing efficiency
    • Shared spectrum carries shared load
    • Compare private and scheduled network resources
    • Downlink and receive windows change the battery story
    • Scale nodes, modes, and gateway placement carefully
    • Choose an architecture and a field experiment
    Open module
  5. 05

    Cellular Radio for Product Engineers

    Read releases, bands, capabilities, network states, and ecosystem evidence.

    90–120 min · estimated
    10 sections
    • “Global LTE” is not a product requirement
    • Navigate releases and specification versions
    • Choose the service and radio family
    • Build complete band and duplex tuples
    • Connect waveform to front-end power
    • Antenna and receiver requirements follow the tuple
    • Integrate the whole network-state timeline
    • Separate capability from deployed service
    • Understand qualification and host obligations
    • Write the cellular option decision memo
    Open module
  6. 06

    Positioning & Satellite Links

    Separate timing, geometry, receiver behavior, sky view, and service assumptions.

    90–120 min · estimated
    10 sections
    • An accuracy headline fails at the window
    • Pseudorange contains an unknown clock
    • Geometry transforms ranging error
    • Read signal-in-space and receiver evidence separately
    • C/N₀, acquisition and tracking answer different questions
    • The installed antenna changes signal and timing
    • Biases can defeat a good geometry number
    • Satellite messaging is a separate link
    • Availability and resilience need their own evidence
    • Specify two experiments and evidence plans
    Open module
  7. 07

    Coexistence & Technology Selection

    Defend a connectivity portfolio with constraints and discriminating experiments.

    90–120 min · estimated
    10 sections
    • Certified radios fail when used together
    • Freeze one common service basis
    • Map every victim, aggressor and path
    • Identify the interference mechanism
    • Mitigate within the controllable boundary
    • Compare complete service and energy scenarios
    • Keep ecosystem and market gates visible
    • Apply hard constraints before preference
    • Find reversals and choose an experiment
    • Record the connectivity portfolio review
    Open module