6G Network : overview 2022 is just a begining
This will increase the performance of 5G apps by increasing capacity and reducing latency. This will allow for new applications in wireless connectivity and cognition as well as sensing and imaging. Access points can now serve multiple clients simultaneously using 6G via orthogonal frequencies-division multiple accessibility.
Higher frequencies on 6G will allow sampling rates to be performed at a faster rate than 5G. These frequencies will provide higher throughput and data rates, as well as significantly greater throughput. Wireless sensing technology will be improved by the use of sub-mm wavelengths (wavelengths less than one millimeter) and frequency selectivity to determine relative electromagnetic absorb rates.
Mobile edge computing is built into all 6G networks. It must be added to 5G networks. When 6G networks become operational, edge and core computing will be integrated into a combined communication and computation infrastructure framework. As 6G technology becomes operational, this approach could offer many benefits. These benefits include better access to AI capabilities, and support for advanced mobile devices and systems.
When will 6G internet become available?
Commercial launch of 6G internet is anticipated for 2030. This technology makes more use of the distributed radio network ( RAN) as well as the terahertz spectrum (THz), to increase capacity, lower latency, and improve spectrum sharing.
Although there have been some preliminary discussions to determine the technology, 6G research-and-development (R&D), activities began in earnest in 2020. Advanced mobile communications technologies such as cognitive and highly secured data networks will be required for 6G. It will also require an increase in spectral bandwidth, which is orders of magnitude quicker than 5G.
China launched a 6G test satellite with a terahertz-equipped terahertz system. According to reports, technology giants Huawei Technologies as well as China Global plan to launch similar 6G satellite launches by 2021. Network designers must address many of the issues associated with 5G deployment of millimeter-wave radio in order to be able to tackle the 6G challenges.
What will 6G look like?
6G wireless sensors will use different frequencies to measure absorption, and adjust frequencies accordingly. This is possible because molecules and atoms emit and absorb electromagnetic radiation at different frequencies. The emission and absorption frequencies for each substance are the same.
The impact of 6G on many industry and government approaches to public safety, critical asset protection and public safety will be profound.
- threat detection;
- Health monitoring
- feature and facial recognition
- Decision-making in areas such as law enforcement and credit systems;
- Air quality measurements
- Gas and toxicology sensing;
- Sensory interfaces that feel real life-like
These improvements will also benefit smartphone technology and other mobile networks, as well emerging technologies like smart cities, autonomous cars, virtual reality, augmented reality, and smart cities.
This chart shows some of the capabilities 6G is expected provide.
Do we even need 6G?
There are many reasons why 6G technology is needed. These are some of them:
- Technology convergence. The sixth generation of mobile networks will bring together previously disparate technologies such as deep learning, big-data analytics and deep learning. Many of these convergences have been made possible by the introduction of 5G.
- Edge computing. Edge computing is an important driver for 6G.
- Internet of things (IoT). Another driving force behind the Internet of things (IoT) is the need for machine-to-machine communications in IoT.
- High-performance computing (HPC). The strong relationship between 6G (and HPC) has been established. Edge computing resources can handle some IoT data and mobile technology data but most of it will need more central HPC resources.
Who is involved in 6G technology?
Many industry leaders are paying attention to the race for 6G. Keysight Technologies, a test and measurement company, has committed to its advancement. Major infrastructure companies like Samsung, Nokia, and Huawei have indicated that they are working on 6G R&D.
The race for 5G might seem minor compared to the competition to see which countries and companies dominate the 6G market, and the related applications and services.
These are the major projects currently underway:
- The University of Oulu, Finland, has launched the 6Genesis research project to create a 6G vision by 2030. To coordinate the research of the Finnish 6G Flagship on 6G technologies, the university also signed a collaboration deal with Japan’s Beyond 5G Promotion Consortium.
- The terahertz frequency band is being investigated by the South Korean Electronics and Telecommunications Research Institute. It envisages data speeds up to 100 times faster that 4G Long-Term evolution ( LTE), and five times faster as 5G networks.
- China’s Ministry of Industry and Information Technology invests in and monitors 6G R&D.
- In 2020, the U.S. Federal Communications Commission opened 6G frequency to spectrum testing frequencies above 95 gigahertz (GHz), to 3 THz.
- Hexa-X, a European consortium made up of industry and academic leaders working together to improve 6G standards research. Nokia, a Finnish communications company, is leading the project. Ericsson, a Swedish operator also participates in it, as well as TIM in Italy.
- Researchers from Osaka University, Japan, and Adelaide University in Australia have created a silicon-based microchip that uses a special multiplex code to split data and allow for more efficient management and control of terahertz waves. Researchers claimed that the device transmits data at 11 gigabits per seconds, compared to 5G’s theoretical limit of 10 Gbps.
Future scope for 6G networks
The phrase “Beyond4G” (or B4G) was first used 10 years ago to describe the need to improve the evolution to 4G beyond the LTE standard. At the time, 5G was still unknown. Only pre-standards prototypes were being developed. B4G was a term that was used for a time. It was used to describe what could be done beyond 4G. Ironically, LTE standards are still in development and 5G will utilize some of them.
Beyond 5G, like B4G is a pathway to 6G technologies which will replace fifth-generation applications and capabilities. 5G’s private wireless communications implementations that include LTE, 5G, and edge computing for industrial and enterprise customers have laid the foundation for 6G.
The next-generation 6G wireless network will go further. They will create a network of communication providers, many of which are self-providers. This is similar to how photovoltaic sun power has enabled cogeneration within the smart Grid. 6G could make mesh networks more accessible and expand coverage beyond the reach of older towers.
Data centers already face big 5G-driven change. These include virtualization and programmable network. Edge computing is also important. Some business customers might want to combine on premises RAN with hybrid on site and hosted computing — for both edge and core computing respectively — as well as data center-hosted core networks elements for private business networks.
6G radio networks will allow for data collection and communication. The 6G technology market requires a systems approach that uses data analytics, AI, and next-generation computation capabilities with HPC and quant computing.
6G will not only bring about profound technological changes in RAN technology but also changes to the core network fabric of communications networks as new technologies converge. AI will be the focus of 6G.
The following are some other changes that 6G could bring:
- Nano-core. The so-called nanocore will be a common computing center that includes elements of AI and HPC. Nano-cores do not have to be physical elements. It could instead be a logical collection or shared computational resources by multiple networks and systems.
- Edge and core coordination. 6G networks will generate significantly more data than 5G networks. Computing will also evolve to include coordination between core and edge platforms. Data centers will need to adapt to these changes.
- Data management. Data management. 6G’s capabilities in imaging, sensing and location determination will produce a lot of data that must all be managed by network owners, service providers, and data owners.