摘要
5G海量机器类通信的无线接入方案包括终端无线连接方案、终端接入和传输方案、终端成本优化方案、覆盖增强和降低功耗方案。MTC终端无线接入方案,包括直接连接、汇聚点连接和MTC终端之间的直接通信。5G接入和传输方案包括协作机制和非协作机制,二者同时支持是5G机器类通信接入和传输的发展趋势。降低MTC终端成本的设计方案,主要是降低终端传输和发射模块的复杂度。MTC覆盖增强方案,对于不同的物理信道,需要分别采用相应的覆盖增强技术。降低MTC终端功耗方案包括采用休眠模式和扩展非连续接收(DRX)周期模式。
The wireless access scheme of 5G mass machine class communication includes terminal wireless connection scheme,terminal access and transmission scheme,terminal cost optimization scheme,coverage enhancement and power reduction scheme.MTC terminal wireless access scheme includes direct connection,connection between point of convergence and direct communication between MTC terminals.5G access and transmission scheme includes cooperation mechanism and non-cooperation mechanism,and the trend of 5G machine class communication access and transmission is that the two mechanism are supported simultaneously.The design scheme of reducing MTC terminal cost is mainly to reduce the complexity of terminal transmission and transmit module.For different physical channels,MTC coverage enhancement scheme adopts the corresponding coverage enhancement technology respectively.The MTC end power reduction scheme includes both sleep mode and extended discontinuous receive（DRX） cycle mode.
出处
《安徽电子信息职业技术学院学报》
2017年第4期1-5,共5页
Journal of Anhui Vocational College of Electronics & Information Technology
关键词
5G
机器通信
物联网
MTC
无线接入
5G
machine communication
Internet of things
MTC
wireless access
