4G Wireless Networks 4th generation (4G), mobile communications use the International Mobile Telecommunications-Advanced (IMT-Advanced) standards for mobile communications and follows on from 3G with faster data transfer. The data transfer rate can yield up to 100 Mbps for high-mobility devices, such as those used from a car or bus. For low-mobility or fixed communications situations, such as walking or using a portable device that is not moving, the data transfer rate can go up to 1 Gbps. Besides higher data speeds than 3G, 4G offers:
