The US global semiconductor company Qualcomm has announced that its subsidiary, Qualcomm Technologies, will cooperate with US telecommunications holding company Sprint, and Nascar to demonstrate the second phase of an over-the-air trial of an LTE TDD hyper-dense small-cell network at the Phoenix International Raceway, Telecompaper reports.

Part of the trial, on March 1-2, at the Nascar Sprint Cup Series March Phoenix Race, Qualcomm Technologies installed 31 small-cell base stations in the raceway’s garage site to test density limits, network performance ability and potential impact on a user\'s mobile.

This hyper-dense network demonstration, done with Airspan\'s AirSyngery 2000 LTE-Advanced Pico base stations, is powered by Qualcomm Technologies small-cell chipsets and Ultra Self-Organizing Network (SON) technology. The network is equal to 1,000 cells per square kilometer in density, operating on Sprint\'s band 41 LTE-TDD spectrum.

Phase 1 of the trial was completed back in November, where Qualcomm Technologies showed UltraSON\'s ability to improve wireless data performance and service quality in hyper-dense small-cell networks, while significantly reducing signal load to the network. During Phase 2, the company demonstrated capacity gain with hyper-dense small-cell networks compared to existing large-area cellular technology, while providing a robust user experience across the whole trial area with UltraSON.