Skip to main content

Wi-Fi Alliance and AT4 to test unlicensed LTE coexistence with wi-fi

AT4 wireless is to provide testing services to assess the fair coexistence of wi-fi and LTE in unlicensed spectrum (LTE-U) devices in accordance with the Wi-Fi Alliance Coexistence Test Plan. The testing assesses whether commercially available LTE-U devices coexist fairly with wi-fi in the same environment. The development and deployment of LTE-U devices, which utilise 4G LTE radio communications technology in the unlicensed spectrum, introduces the possibility of interference with wi-fi equipment operat
August 9, 2016 Read time: 2 mins
AT4 wireless is to provide testing services to assess the fair coexistence of wi-fi and LTE in unlicensed spectrum (LTE-U) devices in accordance with the Wi-Fi Alliance Coexistence Test Plan. The testing assesses whether commercially available LTE-U devices coexist fairly with wi-fi in the same environment.

The development and deployment of LTE-U devices, which utilise 4G LTE radio communications technology in the unlicensed spectrum, introduces the possibility of interference with wi-fi equipment operating in the same bands. Small deviations in LTE-U design requirements may affect wi-fi performance when working in proximity and in the same frequency band. AT4 wireless will conduct independent testing based on objective tests and an industry-approved methodology to verify that LTE-U products do not violate fairness indicators.

Wi-Fi Alliance agreed to qualify AT4 wireless to provide testing services based on the Coexistence Test Plan, which is being developed by members of the wi-fi and LTE-U communities in Wi-Fi Alliance. The Performance Test Tool from AT4 wireless will collect the most relevant key performance indicators, such as throughput, latency (one-way delay), and jitter (latency variation). Official testing will commence once Wi-Fi Alliance releases the final Coexistence Test Plan.

The AT4 wireless Performance Testing Platform is a multipurpose testing solution capable of acting with different roles: traffic generation, setup automation, data collection and analysis. It provides specific features tailored for measuring the impact of the LTE-U devices on Wi-Fi deployments.

AT4 wireless has collaborated with Wi-Fi Alliance as an Authorized Testing Laboratory since 2004 and offers test services for all Wi-Fi Alliance programs for the certification of Wi-Fi devices.

Related Content

  • Sustainable mobility? Only possible with a multifaceted approach
    May 25, 2023
    ITS European Congress 2023 was scene for 'full and frank exchange of views'
  • Oregon tests new mileage-base charging scheme
    August 5, 2013
    Jack Opiola from D’Artagnan Consulting LLP explains Oregon’s latest moves which mandated a trial of mileage-based road use charging. In 1919, Oregon made the 20th century’s most significant contribution to transportation funding policy, becoming the first state in America to implement a gas tax to pay for roads. This summer Oregon’s Legislature passed, and Governor John Kitzhaber signed into law, Senate Bill 810 which requires a distance-based road usage charge for 5,000 volunteer vehicles by 1 July 2015. T
  • Orange County to manage traffic with trial interoperable CCTV
    September 12, 2014
    Interoperable CCTV can provide early warning of problems and help improve traffic management and incident response as Morteza Fahrtash and Carlos Ortiz explain. California’s transportation system is one of the state’s defining features and Caltrans (California Department of Transportation) strives to improving mobility across the state through the design, construction, operation and maintenance of the network of highway, freeways, toll roads and expressways.
  • ITS in the Baltic States: on the rise
    August 12, 2020
    In the Baltic states, on north-east Europe’s border with Russia, the ITS sector is on the verge of big growth, finds Eugene Gerden - but more