This book presentsLTE evolution towards 5G mobile communication and the emergence of newrequirements for MBB, MTC and LLC services.As LTE technologiesevolve, LTE Advanced Pro dramatically increases cell capacity and user datarates for the MBB unicast service. Such requirements are obtained usingfull-dimension MIMO, carrier aggregation (on either licensed or unlicensedfrequency bands) and dual connectivity.To improve theefficiency of same-content delivery to multiple users, 3GPP proposes a groupcommunications service over LTE and defines mission critical push-to-talk(MCPTT) for dedicated public safety services.Complementarylow-cost and low-power modems with enhanced coverage and massive connectivityare emerging. Thus, this book also discusses the need for LTE to support low-ratetransmission and high-latency communication for MTC services.