A base transceiver station (BTS) is a piece of equipment that facilitates wireless communication between user equipment (UE) and a network. BTS is called node B (in 3G networks) or the base station (BS). The E-UTRAN Node B, also known as Evolved Node B (eNodeB or eNB), is the evolution of the Node B in UTRA of UMTS. gNodeB Base Stations are the Next Generation Node B used for 5G-SA and 5G-NSA networks.