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

  • Weathering the elements: how weather affects the network
    July 29, 2013
    Weather-related problems can render cost-cutting counter productive, according to CommScope’s Philip Sorrells. When severe weather conditions make headlines every winter, motorists and travellers seem willing to accept the impact on the trains and roads and yet take for granted that the communications networks will continue uninterrupted. They often appear far more upset that the information system does not give them an update on road conditions, train services or bus arrival times than they are about the a
  • Transport and traffic management for major sporting events
    February 2, 2012
    Maurizio Tomassini, Isis, and Monica Giannini, Pluservice, detail the STADIUM project, which is intended to provide those responsible for planning major international events with a blueprint for success
  • Asecap debates the future of tolling
    August 23, 2016
    Colin Sowman reports form Asecap’s Study & Information Days event in Madrid. At Asecap’s (the Association of European Toll Road Operators) recent Study and Information Days event there was no doubt about the subject at the top of the agenda: the European Union Directive 23/2014/EU. This will introduce fundamental changes to the concession model under which Asecap members operate more than 50,000km of tolled highways and, in response, it has compiled a report entitled Proposal for a Sustainable Concession Mo
  • ITS America, Global Automakers respond to NHTSA's connected car ANPRM
    August 19, 2014
    ITS America and international motor vehicle manufacturers’ representative the Association of Global Automakers (Global Automakers) have responded to the US Department of Transportation's (DOT) National Highway Traffic Safety Administration (NHTSA) advance notice of proposed rulemaking (ANPRM) and a supporting comprehensive research report on vehicle-to-vehicle (V2V) communications technology. The report will include analysis of the Department's research findings in several key areas including technical