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LTE unlicensed (LTE-U)

Long Term Evolution (LTE) is a mobile communications technology that uses various license-free frequency ranges below 1 GHz, at 1.8 GHz and 2.5 GHz. In the " LTE Unlicensed" (LTE-U) variant developed by Verizon, Qualcomm and other companies and discussed by the Third Generation Partnership Project (3GPP), the license-free 5 GHz range, which is otherwise only used by WLANs

and occupied by WiFi devices, is also included. With the cellular

technology of LTE-U, thedata rate ofmobile networks can be significantly increased over short distances, and without the integration of a WLAN. All the user data flows over the license-free frequency bands

. Since cellular mobile radio technologies normally transmit in frequency ranges subject to licensing, LTE-U shares the frequency range with WLANs, which can lead to mutual interference and increasing interference potential. The coexistence of both technologies, cellular and WLAN, in the same license-free frequency ranges requires rudimentary mechanisms to prevent mutual interference. Other methods that use license-free frequency ranges are LTE-WLAN Aggregation (LWA), Licensed Assisted Access (LAA) and MulteFire.

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Englisch: LTE unlicensed - LTE-U
Updated at: 14.07.2017
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