首页|Recent Advances in 5G Technologies: New Radio Access and Networking
Recent Advances in 5G Technologies: New Radio Access and Networking
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NSTL
Wiley-Hindawi
In Sept. 2015, the International Telecommunication Union-Radiocommunications Standardization Sector (ITU-R) has released the service recommendations of the fifth generation (5G) mobile networks known as International Mobile Telecommunications 2020 (IMT-2020). Instead of solely boosting the data rates, like the past evaluations from IMT-2000 to IMT-Advanced, an IMT-2020 system shall support three categories of wireless scenarios, including enhanced mobile broadband (eMBB), ultra-reliability and low latency communication (URLLC), and massive machine-type communication (mMTC), to sustain the 20 Gbps peak data rate, 100 Mbps user experienced data rate, 10 Mbps/m~2 area traffic capacity, 10~6 devices/km~2 connection density, 1 ms latency, and 500 km/hr mobility. To compete for being an IMT-2020 system, 3GPP consequently launched the normative works of "New Radio (NR)" in Release 15 and Release 16. In Jun. 2018, Phase I normative work of NR (i.e., Release 15) has completed, and Phase II (i.e., Release 16) has subsequently begun. The feature technologies in NR thus include communications using millimeter/centimeter wave carriers (spectrum above 6 GHz), nonorthogonal multiple access (NOMA), advanced vehicle-to-everything (V2X), directional transmission/reception, software-defined network (SDN), etc.
NSTL
Wiley-Hindawi
