Improving Power Saving through Early Release of RRC Connection for Cellular Internet of Things

Abstract

In order to meet the massive demands of IoT the Third Generation Partnership Project (3GPP) proposed new cellular IoT (CIoT) technologies How to reduce the power consumption is always a critical issue because a majority of IoT devices are battery-powered 3GPP proposed eDRX and two transport optimization mechanisms to help devices reduce power consumption In this thesis based on the CP CIoT EPS Optimization a Early Release of RRC (ER-RRC) scheme is proposed with two major features entering RRC _IDLE early and reducing unnecessary paging processes The message flow is modified to make IoT devices enter RRC _IDLE early A counter-based mechanism is used to reduce unnecessary paging procedure The results show that ER-RRC outperforms standard CP CIoT EPS Optimization by gaining significant power saving with little downlink latency

Date of Award	2019
Original language	English
Supervisor	Meng-Hsun Tsai (Supervisor)