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DECT ULE INTRODUCTION DECT is a digital wireless technology - PowerPoint PPT Presentation

Jun 11, 2023 •666 likes •715 views

DECT ULE INTRODUCTION DECT is a digital wireless technology developed and standardized by ETSI and it is part of the IMT2000 family. DECT technology has been a continously evolved through more than 20 years with improvement of the core

  1. DECT ULE INTRODUCTION  DECT is a digital wireless technology developed and standardized by ETSI and it is part of the IMT2000 family.  DECT technology has been a continously evolved through more than 20 years with improvement of the core technology within HD voice and internet  The latest addition – DECT Ultra Low Energy – is a low power communication technology, which can cooperate and co-exists with legacy DECT equipment  Leveraging ¡on ¡DECT’s ¡strong ¡points:  Long range, interference free, low cost silicon, interoperability  ... DECT ULE brings multi-year battery life time to applications 1

  2. ULE TECHNOLOGY OVERVIEW  PHY : TDMA/FDMA/TDD, 24 timeslots, 10(5) RF carriers, GMSK modulation , 1.152Mbps, 1.724MHz bandwidth, 250mW TX power, reserved/unlicensed frequency band 1880-1900MHz (US: 1920-1930MHz), multi-cell, star topology, range 75-300meters, antenna diversity  MAC : Dynamic channel selection, interference avoidance, payload size: 80 or 40bytes, reliable packet delivery, circuit and packet mode, exponential back- off, various sleep modes (locked/un-locked), paging/broadcast 2

  3. ULE TECHNOLOGY OVERVIEW  DLC : sequencing, segmentation, SDU size 500bytes (or larger), single packet SDU = 32bytes, per packet encryption and authentication by use of CCM (AES- 128)  NWK : pairing/registration, peer authentication including identity check, addressing supports up to 4096 nodes per FP, multi-cell roaming, service negotiation and configuration  APP : The standard supports multiple application protocols. ULE Alliance is defining HAN-FUN, RTX has drafted 6LoWPAN (IPv6)  Support for variety of applications  Sensors with different range of reporting interval  Actuators  Power consumption: down to 3-4uA 3

  4. DECT ULTRA LOW ENERGY ADVANTAGES  OPEN STANDARDISED TECHNOLOGY DECT is specificed by ETSI EN-300 175 1-5  Multiple chipset vendors  WW Licensed frequencies available free from royalties  EASY INSTALLATION   Easy setup and pairing  Maturity using DECT - established as technology by ETSI in 1993  House coverage and high capacity (>500) on a single Home Gateway Interference free – ”Listen before talking”  COST-EFFECTIVE   DECT already present in Millions of standard Home Gateways  Over 300 million DECT chips sold every year  Interoperability secured by certification program 5

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