基于功率优先级的电力LTE专网随机接入技术

摘要

Facing the demand of wireless access to massive terminals and access priorities for the different electricity business terminals,it is very important to solve the problem of random access to the electric dedicated long term evolution (LTE) network.LTE random access technology for the electric dedicated LTE system is studied,the access demand of massive equipment is analyzed and LTE random access technology is described.By taking into account the characteristics of business access in the smart grid,the random access algorithm in the dedicated LTE network is studied.Finally,the performance of the proposed algorithm is fairly good according to simulation results and up to requirement of different business access levels.%面对电网海量终端的无线接入及不同电力业务终端的接入优先级需求，解决电力LTE(long term evolution)网络的随机接入问题十分重要。研究了电力LTE专网下的随机接入技术，首先分析了电力的海量终端接入需求，阐述了电力丰富业务类型，结合电力业务接入特征，对LTE专网模式下的随机接入算法进行了研究。最后对提出算法进行性能仿真，仿真结果表明，所提算法性能较好，能够满足不同接入等级业务的接入需求。