Research on M2M device access method based on packet combining competitive and non-competitive

With the rapid development of Internet of things technology, M2M communication traffic volume is also increasing day by day, but the available wireless resources in LTE network are extremely limited, which has caused great pressure on the service quality of H2H users. In order to ensure the service requirements of H2H users, this paper based on the massive delay tolerant device (delay tolerant) access to the cell network, carries out packet access control, and analyzes the number of devices in the group. The results show that it can effectively reduce the access delay of M2M equipment, and can better meet the requirements of access delay when the number of available preambles allocated to M2M device is small.