DECT NR+: How Non-Cellular 5G Is Emerging for Industrial IoT

DECT NR+ is one of the youngest wireless technologies entering the industrial IoT market, but its roots go back to the DECT standard originally created for wireless home and office telephones. Today, the technology has evolved into something very different: a private, non-cellular 5G system designed for large IoT networks, low-latency communication and industrial applications.

Standardized by ETSI as DECT-2020 New Radio and recognized by the ITU as part of the IMT-2020 5G family, DECT NR+ supports both massive Machine-Type Communication (mMTC) and Ultra-Reliable Low-Latency Communication (URLLC). Its most distinctive proposition is that organizations can build and operate their own private wireless networks without relying on a public mobile operator.

In 2026, the technology is moving from standards development toward commercial products, interoperability and early industrial deployment.

From Wireless Telephones to a New Radio Technology

The name can initially be misleading. DECT is still strongly associated with wireless home and office telephones, but DECT NR+ is not simply a modernized telephone standard.

ETSI introduced DECT-2020 NR in October 2020 as a new radio interface for local wireless applications, including industrial automation, massive IoT and low-latency communication. From the outset, it was designed for autonomous operation, mesh communication and flexible deployment rather than traditional telephony.

The technology uses modern radio concepts including Orthogonal Frequency Division Multiplexing, OFDM, dynamic channel selection, advanced channel coding and Hybrid Automatic Repeat Request. The physical layer is designed for spectrum below 6 GHz and supports different channel bandwidths and data rates.

The commercial name NR+, or New Radio Plus, is now used for technology based on DECT-2020 NR.

Why It Is Called Non-Cellular 5G

DECT NR+ is often described as non-cellular 5G.

That description requires some precision. It is not 3GPP 5G NR and does not use the same architecture as a conventional mobile 5G network. It is a separate ETSI technology that has been accepted within the ITU’s IMT-2020 framework for mMTC and URLLC use cases.

The difference is important.

A conventional cellular deployment normally depends on mobile-network infrastructure or a dedicated private cellular architecture. DECT NR+ is designed so that enterprises, building operators and industrial users can create their own local networks themselves.

The DECT Forum describes NR+ as supporting point-to-point, star and mesh topologies, giving companies considerable flexibility in how a network is designed.

Private Networks Without a Mobile Operator

This deployment model is one of the main reasons DECT NR+ is attracting attention in industrial IoT.

Technologies such as LTE-M, NB-IoT and public 5G are highly effective when devices need wide-area connectivity, but they normally depend on coverage and services provided by a mobile operator.

DECT NR+ takes another approach.

The radio network can be owned and operated locally, without requiring an individual cellular subscription for every connected device. According to the DECT Forum, radio connectivity can be subscription-free, while many devices share the network’s external backhaul connection.

That can be attractive in factories, buildings, logistics sites and utility installations containing hundreds or thousands of connected devices.

Instead of every sensor communicating independently with a public network, devices can form part of a locally controlled wireless infrastructure.

Why the 1.9 GHz Spectrum Matters

Spectrum is another important part of the story.

DECT historically operates around the 1.9 GHz band, and ETSI designed DECT-2020 NR with a dedicated global frequency band around 1900 MHz while also allowing operation across a broader range of sub-6-GHz frequencies.

For European industrial installations, this is significant because NR+ does not necessarily have to compete in the heavily occupied 2.4 GHz ISM band used by Wi-Fi, Bluetooth LE, Zigbee and Thread.

Industrial sites can contain hundreds of radios, machines and access points. Interference and congestion therefore become important design considerations.

NR+ also inherits automatic interference-management principles from DECT. The technology uses dynamic channel selection and is designed to reduce the need for extensive manual frequency planning.

Mesh Networking Extends Coverage

One of DECT NR+’s most interesting technical capabilities is mesh networking.

In a conventional star network, every endpoint communicates directly with a central access point or gateway. Extending the network often requires adding more infrastructure.

With a mesh architecture, nodes can relay communication for other devices. Data can therefore travel across several hops before reaching a gateway.

This can extend coverage through large factories, buildings or industrial campuses and provide alternative paths when individual links become unavailable. The DECT Forum describes NR+ networks as self-organizing and self-healing, characteristics intended to reduce single points of failure and simplify deployment.

Gateways are still required to connect the local network to enterprise systems or the cloud. But not every individual sensor needs a direct radio link to that gateway.

Low Latency and Massive IoT in One Standard

Many IoT wireless technologies are optimized for a particular requirement.

Bluetooth LE is strong for low-power short-range communication. LoRaWAN focuses on long-range, low-data-rate sensing. Wi-Fi offers high throughput. LTE-M and NB-IoT provide wide-area cellular connectivity.

DECT NR+ attempts to combine two particularly demanding areas within one architecture: very large device populations and low-latency reliable communication.

The DECT Forum says NR+ can support device-to-device latency down to approximately 1 millisecond, depending on configuration. This should not be interpreted as a guaranteed latency for every deployment, but it illustrates that the technology was designed for more than occasional sensor telemetry.

At the same time, NR+ supports low-power behavior. Beacon intervals can be extended so that devices sleep for long periods and wake when communication is required. Transmission power can also be dynamically reduced when devices are close together.

That combination is relevant because industrial networks rarely consist of only one type of endpoint. The same site may contain battery-powered sensors, mobile equipment, actuators and time-critical applications.

IPv6 Connects the Wireless Network to IT

DECT NR+ also supports IPv6 networking.

This matters because industrial wireless networks increasingly need to integrate directly with broader IT and IoT infrastructures.

According to the DECT Forum, IPv6 can reduce dependence on proprietary application gateways and allows standard IP-based security, device management and firmware-update mechanisms to be used across the network.

The result is a network architecture that is intended to connect operational devices more directly with enterprise and cloud systems.

Where DECT NR+ Could Be Used

Initial implementations are focusing on smart metering, building automation, professional audio and industrial applications.

Industrial monitoring is one of the most obvious use cases.

Machines and sensors may be distributed across factories, basements, technical rooms or outdoor infrastructure. Cellular coverage can be poor indoors, while installing wired connections or dense Wi-Fi infrastructure may be expensive.

A recent example comes from Azzurro Digitale’s MATIX Box, which combines Bluetooth LE, LTE-M, NB-IoT and DECT NR+. Bluetooth LE connects nearby sensors and supports indoor location, cellular IoT provides direct cloud connectivity, and DECT NR+ can provide a local private-network path when public cellular coverage is unavailable.

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That illustrates an important point: NR+ does not need to replace other wireless technologies.

It can become one layer in a multi-radio architecture. Bluetooth LE can handle local sensor communication, DECT NR+ can provide plant-wide private connectivity, and cellular IoT can connect assets beyond the private network.

Who Is Building the Ecosystem?

DECT NR+ is still commercially young compared with Bluetooth, Wi-Fi or cellular IoT, but its ecosystem is expanding.

In 2026, the DECT Forum is highlighting semiconductor companies, networking-software suppliers, gateway vendors and industrial manufacturers working with the technology. The emerging ecosystem includes companies such as Nordic Semiconductor, Last Mile Semiconductor, Wirepas, Schneider Electric, Siemens, Legrand, R3 Solutions, Sennheiser and Shure.

Nordic Semiconductor is particularly relevant because its nRF9151 hardware platform supports DECT NR+ alongside LTE-M and NB-IoT. This makes hybrid devices possible in which the same product can communicate through a private NR+ network or through public cellular infrastructure.

Software suppliers such as Wirepas are developing networking layers around NR+, while industrial manufacturers are exploring applications in automation, buildings and infrastructure.

ETSI and the DECT Forum Have Different Roles

Two organizations are central to the technology.

ETSI, the European Telecommunications Standards Institute, develops and maintains the technical DECT standards. This includes the DECT-2020 NR radio specifications and related work on interoperability, profiles and security.

The DECT Forum is the industry association supporting the commercial development and adoption of DECT technologies. It brings together semiconductor suppliers, software companies, product manufacturers and other ecosystem participants.

In simple terms: ETSI defines the technical standard, while the DECT Forum helps build the market and ecosystem around it.

From Standardization to Commercial Deployment

DECT-2020 NR has existed since 2020, but DECT NR+ is only now beginning to move into a broader commercial phase.

The focus in 2026 is increasingly on interoperable devices, gateways, software stacks and industrial products rather than on the radio standard alone. The DECT Forum is highlighting a growing ecosystem of semiconductor suppliers, software companies and industrial manufacturers developing commercial NR+ solutions.

That transition is crucial for adoption. Industrial users need more than a technically capable standard: they need interoperable hardware, multiple suppliers, certification, long-term product availability and practical network-management tools.

These building blocks are now starting to take shape around DECT NR+.

Where DECT NR+ Fits in the Wireless Landscape

DECT NR+ enters a market that already contains many established technologies.

Its opportunity therefore does not come from replacing Bluetooth LE, Wi-Fi, LoRaWAN or cellular IoT across the board.

Its relevance lies in a relatively unusual combination: private network ownership, dedicated spectrum, mesh networking, low latency, support for large numbers of devices and integration into the IMT-2020 5G framework.

For factories and infrastructure operators, that creates another option between short-range local networks and operator-based cellular connectivity.

The technology remains early in its commercial development, and the ecosystem is still much smaller than Bluetooth, Wi-Fi or cellular IoT. But semiconductor support, networking software and industrial implementations are now appearing.

For DECT NR+, the central question has therefore changed.

It is no longer whether DECT can move beyond wireless home and office telephony. Technically, that transition has already happened.

The question is whether DECT NR+ can turn its combination of private 5G capabilities, mesh networking and dedicated spectrum into a sufficiently broad and interoperable ecosystem to become an established connectivity layer for factories, buildings and infrastructure.

Sources

ETSI – DECT-2020 New Radio
ETSI launches DECT-2020 NR for IoT

ETSI – DECT Standards
ETSI DECT technology and standards overview

DECT Forum – NR+ Technology
DECT NR+ technology overview

DECT Forum – Commercial Ecosystem 2026
DECT NR+ Commercial Ecosystem Comes Together at DECT World 2026