5G New Radio: Physical Layer Overview
Release Date：2017-07-24
Author：YUAN Yifei and WANG Xinhui
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[Abstract] This paper provides an overview of the physical layer of 5G new radio (NR) system. A general framework of 5G NR is first described, which glues together various key components, all of them helping to fulfill the requirements of three major deployment scenarios: enhanced mobile broadband (eMBB), ultra⁃reliable low latency communications (URLLC) and massive machine type communications (mMTC). Then, several key components of the 5G NR physical layer are discussed in more detail that include multiple access, channel coding, multiple antennas, frame structures, and initial access. The two⁃phase approach of NR is also discussed and the key technologies expected to be specified in Phase 1 and Phase 2 are listed.
[Keywords] 5G; IMT⁃2020; new radio (NR)
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