NI presents a system for testing, experimenting and prototyping new wireless access technologies LTE Unlicensed (LTE-U) and/or License Assisted Access (LAA). Today, LTE-U and LAA standards are needed to improve 4G and facilitate the transition to 5G.
This real-time test bed includes a FPGA-based LTE-based physical layer in the source code, so that different LTE-U and LAA scenarios can be tested, evaluated and potentially enriched to estimate performance and increase data rates of systems based on existing LTE and 802.11 infrastructures.
Because LTE-U and LAA standards use an unlicensed 5.9 GHz ISM band to extend the cellular spectrum, LTE-U and LAA-compatible devices must "share" spectrum with 802.11a and 802.11ac WiFi equipment. The 3GPP technical specifications group is particularly interested in the LAA standard because, unlike the LTE-U, which is subject to each country's local spectrum regulations, the LAA is applicable globally.
Based on the NI USRP RIO software radio and the LabVIEW Communications System Design suite, the NI test bench is a ready-to-use system consisting of:
LabVIEW Communications System Design Suite
LTE application framework under LabVIEW Communications
LTE-U and LAA reference configurable software
Two USRP-2953R-based FPGA-based software radios.
"Several suggestions have been included in the proposed 3GPP standard to minimize interference with unlicensed tape users," says James Kimery, Director of RF Research and Software Radio at NI. "Of course, it is necessary to conduct the prototyping and testing phases with great application to facilitate the adoption of a new standard. NI's LTE-U/LAA test bench will allow researchers to assess the impact of this new standard under specific test conditions. »
Find out more: https://www.ni.com/white-paper/53044/en