Random access method with access time distribution scheme

摘要

Machine-to-Machine (M2M) communication, a promising technology enables ubiquitous connection between massive autonomous devices without human intervention. M2M communication is one of the core technologies supporting data exchange among sensing devices, processing devices, and actuating devices to facilitate various M2M applications (e.g., telematics, smart metering, smart grid, and home/factory/city automation). Machine Type Communication (MTC) is a new service defined by the 3GPP to enable M2M devices to communicate with each other over LTE-Advanced cellular networks. For huge numbers of MTC devices, one of the challenging issues is to provide an efficient way for multiple access in the network. In this paper, we propose a novel scheme named Access Time Distribution (ATD) that can distribute access time to reduce a random access overload. The ATD scheme can be an effective solution that can alleviate the overload problem.