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5G New Radio: Unveiling the Essentials of the Next Generation Wireless Access Technology

2019; Institute of Electrical and Electronics Engineers; Volume: 3; Issue: 3 Linguagem: Inglês

10.1109/mcomstd.001.1800036

2471-2833

Xingqin Lin, Asbjörn Grövlen, Karl Werner, Jingya Li, Robert Baldemair, Jung-Fu Cheng, Stefan Parkvall, Daniel Larsson, H. Koorapaty, Mattias Frenne, Sorour Falahati,

Cooperative Communication and Network Coding

The fifth generation (5G) wireless access technology, known as New Radio (NR), will address a variety of usage scenarios from enhanced mobile broadband to ultra-reliable low-latency communications to massive machine type communications. Key technology features include ultra-lean transmission, support for low latency, advanced antenna technologies, and spectrum flexibility including operation in high frequency bands and inter-working between high and low frequency bands. This article provides an overview of the essentials of the state of the art in 5G wireless technology represented by the 3GPP NR technical specifications, with a focus on the physical layer. We describe the fundamental concepts of 5G NR, explain in detail the design of physical channels and reference signals, and share the various design rationales influencing standardization.