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

  • EU project identifies critical road transport infrastructure
    March 21, 2013
    The results of the US3.2 million European Union (EU research project Security of Road Transport Networks (SeRoN) have been published by software and consulting services provider PTV Group and its seven partners. The report presents a methodology which allows planners to identify critical bridges and tunnels and to develop appropriate protection measures. As part of the EU’s 7th Framework Programme, the SeRoN project investigated the security of tunnels and bridges. To this end, the project partners develop
  • Euro NCAP puts autonomous pedestrian detection to the test
    November 11, 2015
    European safety organisation Euro NCAP is introducing a new test that will check how well vehicles autonomously detect and prevent collisions with pedestrians, which it says will make it simpler for consumers and manufacturers to find out which systems work best. According to Euro NCAP, independent analysis of real world crash data in the UK and Germany indicates that the deployment of effective autonomous emergency braking systems on passenger cars could prevent one in five fatal pedestrian collisions.
  • Tags or communication based toll payment systems?
    January 20, 2012
    Midland Expressway Ltd's Tom Fanning discusses deployment of Near Field Communicationbased payment on the M6 Toll facility The M6 Toll's introduction from early next year of Near Field Communication (NFC) is a pragmatic response to the relative scarcity of tolled facilities and the concomitant low levels of tag take-up in the UK, according to the road's operator, Midland Expressway Ltd (MEL). Nevertheless, Dedicated Short-Range Communication (DSRC)-based tags operating at 5.8GHz are still a key part of the
  • US closer to finalising a new reauthorisation bill
    January 25, 2012
    Pete Goldin talks with ITS America about the continuing efforts of US Congress to finalise a transportation reauthorisation bill and how this will impact the ITS industry