第六代移动通信展望
the future sixth generation (6G) mobile network is expected to be an innately intelligent, highly dynamic, ultradense heterogeneous network that interconnects all things with extremely low-latency and high speed data transmission.
Topic:
intelligent D2D communication
缩写词
mobile user equipments (UEs)
personal mobile workstations
和5G相比的主要进步
it is envisioned that 5G cannot fulfill the requirements of emerging
Internet of Everything applications like augmented reality (AR), virtual reality (VR), and mixed reality (MR), which require a convergence of communication, sensing, control, and computing functionalities
current research trends have shown that 6G network architecture at least has the following characteristics:
space-air-terrestrial-sea integrated (SATSI), artificial intelligence (AI) driven, higher frequency bands, ultradense heterogeneous, green energy, security and privacy.
挑战:
further network densification in 6G will encounter many serious problems and challenges like severe interference, very complex resource management, a vast amount of signaling, prohibitively high cost and energy consumption.
对策
the utilization of AI techniques
移动终端执行AI：
smartphones can be regarded as personal mobile workstations
that enable on-device AI processing for intelligent networking in the future
新概念1： Space-Air-Terrestrial-Sea IntegratedNetworks
特点：
broad coverage and ubiquitous connectivity
组成：
a space network：satellites
an air network： high altitude platform
low altitude UAV
heterogeneous ultradense terrestrial network
功能：
seamless high-speed communication in space, air, terrestrial and sea domains
其中的D2D应用
to support low latency and high speed data transmission
新概念2:extremely heterogeneous and ultradense network
D2D communication作用：
to efficiently support a much larger and more diverse set of UEs and applications.
新概念3： innately intelligent, highly dynamic networks
AI辅助的网络运维和优化
global AI, local AI and on-device AI will cooperate and leverage one another’s advantages to maintain the network operation and optimization.
distributed AI.
AI的具体应用环境
Intelligent resource allocation, network optimization, small BSs or UAVs deployment, network design.
新特点：移动终端变得智能
UEs like smart phones may provide opportunities for on-device data training, which can sense and learn from the local channel pattern, traffic pattern, moving trajectory, etc.