Recently, China Mobile Shanghai, together with China Mobile Shanghai Industry Research Institute, Huawei and other partners, took the lead in completing the opening of the world's first 5G-A IoV vehicle, road, network, cloud, and map all-factor verification demonstration route in Shanghai Pudong Jinqiao Intelligent Connected Vehicle Demonstration Zone, which adopts 5G-A synaesthesia fusion, deterministic high bandwidth and other technologies.
What is 5G-A? What is synaesthesia? What is Deterministic High Bandwidth? This article will interpret them one by one, and the shortcomings are common.
What is5g-a(5.5g)
5G-A, also known as 5G-Advanced, is the evolution and enhancement of 5G. In April 2021, the International Standards Organization 3GPP (Third Generation Partnership Program) officially determined the name of 5G evolution as 5G-Advanced at the 46th PCG meeting, and completed the first batch of projects of the first version of 5G-Advanced, the REL-18 standard, in December 2021, followed by REL-19, REL-20 and other standards to further promote the evolution and popularization of 5G Advanced. As we all know, mobile communication technology is almost every decade, 55G, as a transition and bridging between 5G and 6G, will probably last for more than 5 years.
In terms of performance, 55G will achieve peak rates of 10 Gigabit (10 Gbps) downlink and 1 Gigabit (1 Gbps) uplink, as well as millisecond-level latency and low-cost 100 billion IoT. Compared to 5G, which began to be commercialized in 2019, 55G has higher bandwidth, lower latency, higher connection density, higher positioning accuracy, and multiple capabilities such as large uplink, higher availability, higher accurate timing, synaesthesia fusion, and air-space integration.
The IMT-2020 (5G) Promotion Group proposed that 5G-Advanced will be targeted at six application scenarios: immersive real-time, intelligent uplink, industrial interconnection, synaesthesia, 100 billion IoT and space-ground integration.
What is synaesthesia?
Synaesthesia fusion refers to the integration of communication and perception functions, so that the future communication system has both communication and perception functions, and actively recognizes and analyzes the characteristics of the channel while transmitting information on the wireless channel, so as to perceive the physical characteristics of the surrounding environment and realize the mutual enhancement of communication and perception functions. It goes beyond traditional connectivity in 5G networks to bridge the real world with the virtual world. In research for 5G-Advanced, sensing will be an important capability and feature of cellular systems. In the application of intelligent driving, the perception of the road environment can be realized based on the integrated base station of communication and perception or the cooperation between base stations, which can effectively realize the construction of high-precision maps and provide over-the-horizon assistance for the safe operation of autonomous vehicles.
What is Deterministic High Bandwidth?
Uplink bandwidth: 5The uplink rate of 5G can reach 1Gbps, which is ten times higher than that of 5G, and the uplink enhancement technology direction is mainly time-domain duplex evolution, flexible access to the full spectrum in the frequency domain, uplink MIMO enhancement in the airspace, and user aggregation transmission in the power domain.
In intelligent driving scenarios, it can be applied to the movement and monitoring of unmanned vehicles, including real-time dynamic monitoring of vehicles and data return of vehicles, and can also be applied to remote driving to get out of trouble. In the preceding scenarios, the uplink bandwidth requirements reach the 100 Gigabit range.
Large downlink bandwidth: The peak downlink rate of 5G-A will be increased from gigabit to 10 gigabit at the beginning of 5G.
In the intelligent driving scenario, the downlink high-bandwidth network provides a solid network foundation for the new cockpit that is gradually moving towards large-screen and multi-screen, making it possible to experience immersive experiences such as in-vehicle XR, high-definition, lossless, and conference.
Conclusion
With the development of the intelligent networked vehicle industry, including the gradual expansion of the market demand and scale of intelligent cockpits, high-precision map navigation based on vehicle-road coordination, and advanced autonomous driving, the demand for intelligent networked vehicles is becoming more and more stringent. Next 55G and the Internet of Vehicles will be more closely integrated to achieve larger-scale implementation, better exert their value, and help the development of the autonomous driving industry.
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