# 4G Long Term Evolution (LTE) Started in 2004 and finalised in 2008 - [Internet Protocol](Internet%20Protocol.md) based - Voice - Multimedia - Data Everything can be quantified by bits, so this is how it is charged. ## Requirements - Increase user data rate to 100 Mbps downlink and 50 Mbps uplink (for a 20MHz bandwidth) - Reduce latency (< 5ms for small [IP](Internet%20Protocol.md) packets) - Low speed (<20km/h) support up to 350km/h - Increases spectral efficiency of cell-edge users (still interference) # References 1. [TELE4652-lecture-01-introduction-to-wireless-communications](../../Spaces/University/TELE4652/Lectures/TELE4652-lecture-01-introduction-to-wireless-communications.pdf)