Chapter 4
Phase 2 Radio Network and User Equipment
Book Editor(s):Jyrki T. J. Penttinen,
First published: 23 March 2021
Abstract
This chapter refers to a multitude of 3rd Generation Partnership Project (3GPP) Technical Specifications and Technical Reports (TR) on New Radio (NR) access. Cloud RAN is a centralized RAN architecture model based on cloud computing for RANs. Equally, the core network can be based on cloud. Both support current mobile communication systems and future wireless standards. The key specification for 5G NR is 3GPP 38.300. Among other aspects, it defines the protocol architecture and functional split, interfaces, protocols, channels and procedures, mobility and states, scheduling, User Equipment (UE) functionalities and capabilities, QoS, security, self-configuration, and self-optimization. The chapter summarizes the key radio aspects of Release 16. Release 16 includes enhanced beam handling and Channel-State Information feedback, support for transmission to single UE from multi-TRP, and full-power transmission from multiple UE antennas in the UL.
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