LTE Advanced signal indicator in Android LTE Advanced signal indicator on Xiaomi phones LTE Advanced signal indicator (4G+) on Samsung Galaxy phones in Europe LTE Advanced (LTE+, LTE-A;[1] on Samsung Galaxy and Xiaomi phones — 4G+) is a mobile communication standard and a major enhancement of the Long Term Evolution (LTE) standard. It was formally submitted as a candidate 4G to ITU-T in late 2009