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

  • Global V2V penetration in new cars to reach 69 per cent by 2027
    November 21, 2013
    The latest analysis by ABI research expects global V2V penetration in new cars to increase from 10.9 per cent in 2018 to 69 per cent in 2027. ABI Research vice-president and practice director Dominique Bonte comments: “Huge interest in autonomous driving across the automotive ecosystem firmly positions V2X technology and applications as a key component of driverless car systems. However, some OEMs are claiming some forms of (semi)-autonomous driving can be achieved by just using in-vehicle ADAS-sensors.
  • A new beginning for travel information, based on users' needs
    February 3, 2012
    Despite its name, the EU's forthcoming SUNSET project could represent a new beginning for travel information services. Here, Susan Grant-Muller and Frances Hodgson from the Institute for Transport Studies at the University of Leeds detail a project which is intended to exert a greater influence on network users' travel habits
  • Utah Transit Authority offers Wi-Fi services on FrontRunner trains
    December 21, 2017
    Utah Transit Authority has commissioned the GBS Group (GBS) to equip its FrontRunner trains with fast and reliable Wi-Fi access points to passengers. The technology is based on Eltec's CyBox AP-W (models 1007/1023), which enables mobile Wi-Fi-capable devices to communicate with the Internet on passenger trains, buses or underground trains as well as access to local data and schedule information. Eltec assisted GBS in the project planning stage, the selection of suitable devices and the implementation of
  • US updates ITS strategy for Connected Vehicle deployment
    March 16, 2015
    Jon Masters looks at the USDOT’s new ITS Strategic Plan for the next five years. Emphasis and direction for the next five years of Government led ITS research in the United States has been framed within a new ITS Strategic Plan. The US Department for Transportation’s (USDOT) ITS Joint Program Office (JPO) published the report at the tail end of 2014 after concluding a two-year ITS industry consultation process. The Plan identifies a vision to transform the way society moves and the ITS JPO’s aim of advancin