5G
Introduction
The fifth generation of mobile communication technology (5th Generation, 5G), some of the technical specifications extend from 4G, the main goal is to increase the data transmission rate (eMBB), reduce the transmission time delay (uRLLC), and increase the system capacity to accommodate Large-scale device connection number (mMTC). The 5G network uses the millimeter wave band (mmWave) from 30 to 300 GHz and the microwave frequency band below 6 GHz (Sub-6G), using higher frequency radio waves to achieve higher data rates.
Compared with 4G’s breakthrough goal of 100Mbps, 5G plans to challenge 10Gps in transmission rate, which is equivalent to the transmission speed of passive optical fiber networks. It is 100 times faster than 4G and can easily play 3D movies and 4K movies. 5G networks are expected to be matched with applications such as the Internet of Things (IoT) and smart homes. While allowing more devices to be connected, the challenge is to maintain low-power battery life. And the ultra-low time delay of less than 1 millisecond, compared with the 30-70 millisecond delay time of 4G, many key bottlenecks in applications such as Industry 4.0, smart factories, Internet of Vehicles, and telemedicine are expected to be broken. Because of the use of higher frequency bands, the effective transmission distance is relatively reduced, and more base stations need to be built. The number of 5G devices is 1,000 times that of 4G, providing a more flexible and distributed network architecture than 4G to meet the needs of more Diversified network services.
Standard
The 5G communication standard Release15 submitted by the 3rd Generation Partnership Project (3GPP) belongs to the 5G NSA-NR (Non-Stand-Alone New Radio) international specification, with the primary goal of increasing the data communication rate, mainly for the biggest difference between 5G and 4G the radio channel specifications are updated, and various possible migration deployment methods are defined for seamless migration from 4G to 5G. The second phase of the Release16 specification further defines the independent networking 5GSA-NR (Stand-Alone New Radio) international specification.
- mIoT ‐ TS 22.861
- CRIC – TS 22.862
- eMBB – TS 22.863
- NEO – TS 22.864
- V2X – TS 22.886
- Architecture – TR 23.799, TS 23.501, TS 23.502
- Security – TR 33.899, TR 33.501
Application
- Wireless broadband mobile data service
- Key infrastructure construction of AIoT
- Virtual reality and ultra-clear image action games
- Environmental background awareness mobile communication
- Telemedicine services
Architecture
mmWave Analog Beamforming Architecture
