Field Guide · organization

Also known as: LoRa Alliance

The LoRa Alliance is a non-profit industry association that develops, publishes, and certifies the LoRaWAN standard — the open networking protocol that turns the LoRa radio modulation into a complete low-power wide-area network (LPWAN) for the Internet of Things.1 The alliance owns the LoRaWAN specification and runs the certification and interoperability program, while the underlying LoRa physical layer remains proprietary to Semtech.2

LoRa PHY — chirp spread spectrum (Semtech) LoRaWAN — MAC & network (LoRa Alliance) Applications — sensors, meters, trackers
The LoRa Alliance standardizes LoRaWAN, the open MAC and network layer built on the LoRa radio.

Overview

The LoRa Alliance was founded in 2015 by a group of technology and telecom companies to turn LoRa — Semtech’s long-range, low-data-rate chirp-spread-spectrum modulation — into an open, multi-vendor standard rather than a single-supplier product. The key distinction the alliance draws is between the radio and the network: LoRa is the patented physical layer that any licensed chipset implements, whereas LoRaWAN is the openly published media-access and networking specification the alliance controls, defining how end devices, gateways, network servers, and application servers exchange messages, handle security keys, and manage data rates.

The alliance publishes the LoRaWAN specification and regional parameters (band plans and duty-cycle rules differ by country), operates a certification program so that a “LoRaWAN Certified” device works across compliant networks, and coordinates a large ecosystem of operators, gateway makers, and sensor vendors. Its design goals are the classic LPWAN trade-off: very long range and multi-year battery life at the cost of low throughput and high latency, which suits telemetry — utility meters, agricultural sensors, asset trackers — rather than anything real-time.

Relevance to SDR

LoRaWAN operates in sub-GHz ISM bands (for example 868 MHz in Europe and 915 MHz in North America), which sit comfortably within the tuning range and bandwidth of inexpensive SDRs. Because the LoRaWAN specification is open, SDR-based receivers and gateways can be built to observe uplink traffic, and the chirp structure of the LoRa physical layer — up-chirps and down-chirps whose starting frequency encodes the symbol — is a well-known and visually distinctive target on a spectrogram. Projects that decode LoRa with GNU Radio rely on understanding both the proprietary chirp modulation and the LoRaWAN framing the alliance standardizes.

GopherTrunk does not decode LoRa or LoRaWAN; it is a trunked land-mobile voice scanner and LPWAN telemetry is outside its scope. The LoRa Alliance is included here to round out the IoT and LPWAN corner of the standards landscape, alongside competing approaches such as Sigfox and cellular NB-IoT — a useful contrast for readers mapping where each low-power technology fits.

Sources

  1. LoRa Alliance — the alliance’s official site, for the LoRaWAN specification, regional parameters, and certification program. ↩

  2. LoRa — Wikipedia, for the LoRa modulation, the LoRaWAN protocol, and the alliance’s role. ↩

See also