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South Korea on the way to 6G technology

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South Korea on the way to 6G technology

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Ahead of the future: South Korea on the path to 6G technology

Scientists have created a data transmission method that will be the beginning of the development of next-generation networks.

A group of scientists from South Korea suggested a new method for scheduling and transmitting a network bundle (network slicing) applicable to next-generation satellite systems networks in low Earth orbit (Low Earth Orbit, LEO).

LEO satellite networks are communication networks with satellites launched at a distance of 300 to 1500 km, designed for a stable Internet connection. Unlike base stations on the ground, where radio signals are often obstructed by mountains or buildings, LEO satellites can be launched to build communication networks in low population density areas where base stations cannot be installed.

One of the main advantages of using LEO satellites in telecommunications is that they provide lower signal latency compared to satellites in geostationary orbit, making them more suitable for high data rate applications such as the Internet. However, LEO satellites move relatively fast relative to the Earth, requiring more complex tracking systems and communication switching between satellites to maintain a continuous connection.

In the era of 6G networks and the growing demand for data and diverse services such as VR/AR and autonomous driving, it is necessary to implement “network slicing” technology that provides these services after splitting into independent virtual networks.

Network Slicing is a technology that allows operators to create multiple virtual networks on the same physical infrastructure. This is achieved by dividing the physical network into multiple independent and isolated virtual networks or “slices”.

Each slice can be optimized for specific requirements and needs, such as high performance services such as virtual reality (VR), augmented reality (AR), or for autonomous driving.

In other words, operators can provide diverse and more flexible services on the same network to meet different requirements and needs of end users. It should be noted that Network Slicing technology is a key component for the implementation of 5G networks and 6G networks.

South Korean experts propose a new method for planning network segmentation using the characteristics of the distribution and movement of LEO satellites, as well as the environment of wireless channels in scenarios in which various services are virtualized.

The developed network layering planning method, including handover of LEO satellites, allows South Korea to take its satellite network technologies to a new level, which is still at an early stage compared to other countries where LEO-based satellite Internet services such as Starlink, already commercialized.

According to the authors, the study aims to continually segment the network to deliver the services users need in response to the changing LEO satellite environment. The main goal of scientists is to provide a plan for using various applications in LEO satellites for the coming 6G era.

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