Terminology » Other Wireless » DECT vs. DECT ULE: Key Differences Explained

DECT vs. DECT ULE: Key Differences Explained

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This article breaks down the key differences between the original DECT (Digital Enhanced Cordless Telecommunications) standard and its low-energy cousin, DECT ULE (Ultra Low Energy). We’ll explore what sets them apart in terms of power consumption, range, data rates, and typical applications.

DECT ULE was developed with a focus on energy efficiency and is managed by the ULE Alliance, ETSI, and the DECT forum. It brings some significant improvements compared to the legacy DECT technology.

Here’s a quick look at some of the defining characteristics of DECT ULE:

  • Low Power Consumption: DECT ULE chips are designed to sip power, typically consuming around 5mA at 3.3 Volts.
  • Low Latency: Faster response times compared to traditional DECT.
  • Long Range: Can cover larger areas, making it suitable for various applications.
  • Moderate Data Rate: Offers a reasonable data transfer speed for its intended uses.
  • Value-Added Services: Supports both voice and data applications.

DECT vs. DECT ULE: A Detailed Comparison

The table below highlights the key differences between the two technologies:

SpecificationsDECTDECT-ULE
Coverage Distance75 meters (Indoor), 300 meters (Outdoor)70 meters (Indoor), 600 meters (Outdoor)
Frequency of Operation1.880 to 1.900 GHz1.8 GHz in Europe, 1.9 GHz in USA
Data Rate1.152 Mbps1 Mbps
Battery LifeMediumLong (10 years)
Channel Spacing1.728 MHz1.728 MHz
LatencyHigher than DECT ULELower than DECT
SecurityUses Challenge and Response based encryption which generates encryption key to be used between Base unit and Handset. DECT uses 64 bit encryption.DECT ULE uses very strong encryption i.e. 128 bit AES.
Transport LayerNormalEnhanced to meet WSN (Wireless Sensor Network) requirements
ApplicationsCordless telephony (Mostly used for Voice communication)Cordless telephony, Home automation, M2M, Security and monitoring, used for voice and data communication

Key Takeaways

  • Range: DECT ULE offers significantly longer outdoor range compared to standard DECT.
  • Security: DECT ULE uses a much stronger encryption standard (128-bit AES) compared to DECT’s 64-bit encryption.
  • Applications: While DECT is primarily used for cordless phones, DECT ULE expands into home automation, M2M (Machine-to-Machine) communication, and security/monitoring systems.
  • Battery Life: DECT ULE is designed for extremely long battery life, potentially lasting up to 10 years in some applications.