Showing posts from August, 2019

eDRX(Extended DRX)

Home                 LTE                NB-IoT            5G(NR-NSA) Hi Guys today we are learning about eDRX in NB-IOT. If you are interested in learning more about DRX please  click here . What is eDRX? eDRX(Extended DRX) is a feature which was introduced by 3GPP in Rel. 13. As the name suggests, it is an enhancement/extension of DRX, a Release 8 feature. It was introduced to reduce Power Consumption of IoT devices. What is the difference between DRX and eDRX? eDRX is an extension of DRX in the sense that the duration for which the UE is in sleep mode has been extended considerably. DRX is used in smartphones and other LTE devices to reduce power consumption and extend battery life. In NB-IoT, eDRX allows the UE to sleep for a long duration of time, and wake up periodically to check Paging. Since the sleep duration in eDRX is considerably longer than in DRX, hence there can be lot of power saving. For eDRX to work there should be perfect timing