5G 1 5G mobile communication systems 1 Electric batteries 1 Electric power utilization 1 Internet of things 1 Low Power 1 Low power electronics 1 Massive internet of thing device NB-IoT 1 NPUSCH 1 Narrow bands 1 Narrowband internet of thing 1 Power saving mechanism 1 Resource units 1 Scheduling algorithms 1 Uplink scheduling 1 Uplink scheduling algorithm 1 Wide area networks 1 Wide-area networks 1 massive IoT devices 1 power saving mechanism 1 resource units 1 uplink scheduling 1