Huawei and NTT DOCOMO have demonstrated the co-channel coexistence between Licensed-Assisted Access (LAA) and Wi-Fi systems in a dense small cell scenario targeting LAA deployment in an unlicensed band.
The demo was performed at the DOCOMO R&D Open House 2015 held at the DOCOMO R&D Center in Yokosuka Research Park near Yokohama, Japan.
The Chinese telecom network vendor and DOCOMO demonstrated LAA and Wi-Fi co-existence key technologies complying with standardized LAA in the 3rd Generation Partnership Project (3GPP), which is expected to be completed in Q1, 2016.
NTT DOCOMO used a multi-access points/multi-user small cell network to model a field test scenario, with an unlicensed carrier operating in air-interface, showing the capability of LAA to provide fair co-existence and promising use of a real commercial network.
The Japanese telecom network operator has also tested an enhanced co-existence technology called adaptive Listen-Before-Talk (LBT) proposed by Huawei. Adaptive LBT can achieve 50 percent LAA performance gain over baseline co-existence solution, while providing fair co-existence to neighboring Wi-Fi systems.
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