Synaesthesia integrated de cellular super large-scale MIMO and high-frequency wireless access technology

【 pick   want 】 With holographic communication 、 Number twin 、 The rapid emergence of new applications such as virtual and real space fusion and interaction , Future mobile communication systems need to be able to support ultra large capacity wireless transmission and extremely high-precision positioning . Based on de cellular super large scale MIMO The distributed antenna array of the system and the user centered scalable service architecture , Design the integration of communication and perception , Achieve high energy / Spectral transmission and in band high-precision sensing and positioning , It is an effective solution . Firstly, the potential technology and application requirements of future mobile communication systems are introduced ; Then from the beam forming and system performance analysis 、 Pilot allocation and channel estimation 、 Return trip / Performance optimization under forward link constraints and other aspects introduce de cellular ultra large scale MIMO Research status of the system ; Then analyze from the basic information theory 、 Communication aware integrated access method 、 Joint channel estimation and location update method 、 Position information assisted distributed beamforming 、 High energy / Spectrum efficiency distributed resource optimization 、 High frequency near-field wireless access and other aspects analyze the synaesthesia integrated de cellular super large scale MIMO Future research direction of Technology ; Finally, the synaesthesia integrated de honeycomb super large scale MIMO The main advantages of the system and the problems that still need attention in the future .

【 key word 】 Go to cellular super large scale MIMO System ; Synaesthesia integrated user access ; Joint channel estimation and location update ; Distributed beamforming ; Distributed resource optimization ; High frequency near-field wireless access

0    introduction

The improvement of user demand and technological innovation are the source power of the evolution of mobile communication system . With holographic communication 、 Number twin 、 Virtual and real space fusion and interaction 、 The rapid emergence of emerging applications such as the wide area Internet of things , The future mobile communication system is required to support Tbps Wireless transmission rate of order of magnitude and centimeter positioning accuracy [1-2]. Based on large-scale MIMO（Multi-Input Multi-Output, Multiple inputs, multiple outputs ）[3-6]、 Millimeter wave [7]、 New code modulation 、 Network virtualization and other technologies ,5G Achieved peak rate 、 User experience rate 、 Spectral efficiency 、 Time delay 、 Connection density 、 Comprehensive improvement of network energy efficiency and other performance , The basic needs of users and networks have been met . However , With the continuous expansion of the scope of application and by the spectrum 、 energy consumption 、 Cost and other multiple factors , Mobile communication systems still need to evolve to cope with huge traffic 、 Increased number of connections 、 Differential application and high-precision positioning