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The basic ULE wireless network uses a “star network topology”; i.e. there is one main device, called “base”, which controls the network; the “base” is wirelessly connected to “nodes”, which usually are devices with dedicated functions, such as sensors, remote controls, actuators, smart meters, etc.
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ULE communication range is among the longest in the short range wireless communication technologies: over 50 meters in buildings and up to 300 meters in the open air. For the few cases where this range is not sufficient, repeaters can be used to extend the range. Similarly to DECT, ULE can also use
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ULE Alliance developed and defined HAN-FUN application layer protocol (Home Area
Network FUNctional protocol). The HAN FUN protocol defines the profiles of devices and sets requirements for application level interoperability of ULE based devices. The first version of HAN FUN (released in November
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Primary application areas of ULE based wireless networks are for home automation, home security and climate control. Each of these application areas represent variety of dedicated devices. Many home gateways, deployed worldwide integrate DECT and implementing the DECT base functionality. These
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ULE enables simultaneous data and voice communication; this means that sensors are not limited to indicating the event, but also enable voice interface. A good example is a pendant device for elderly care, which in case of emergency enables person carrying it not only indicate of an emergency
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ULE Transport and
Physical layers are defined and standardized by ETSI. The ULE physical layer is identical to DECT physical layer, while the Transport layer was enhanced to better fit requirements of wireless sensor networks.
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ETSI TS 102 939. Digital
Enhanced Cordless Telecommunications (DECT) – Ultra Low Energy (ULE) – Machine to Machine Communications
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situation, but also communicate with a remotely located caretaker, or service station as with regular cordless phone, but all with the simple press of a button.
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Some examples of node devices – door locks, smoke detectors, motion detectors, remote controls, gas and electricity meters, baby monitors, elderly care, etc.
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Enhancements were made to the DECT transport layer level by ETSI Technical Group DECT to adapt it to the requirements of the ULE wireless sensor networks:
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more complex network architecture, with several bases connected with each other to cover extended areas (such as offices and larger buildings).
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gateways are usually software upgradable. A home gateway which already has DECT functionality can become ULE enabled by software upgrade.
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ETSI publishes first specification for Ultra Low Energy DECT – and expects to lead the field in the M2M market
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Low power operation, which enables ULE devices to operate on batteries for extended time period of years
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Extended security – ULE is using strong 128 bit AES encryption scheme vs. 64 bit encryption of DECT
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Similarly to DECT, ULE uses a dedicated radio frequency, outmatching other technologies, such as
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released the specification of the ULE standard (Technical
Specification TS 102 939-01).
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242:"ETSI TS 102 939-2 V1.3.1 (2019-01). Part 2: Home Automation Network (phase 2)"
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2013) defines profiles of over two dozen different devices.
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136:applications. DECT ULE originated from the
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