Methods of fomalization and simulation of telecommunication network using network slice

The 5G networks are already widely used and developed for practical use and implementation in modern communication systems. One of the key technologies of these networks is network slicing technology that allows you to distribute, optimize and improve the operation of the entire network. There are many representations and implementations of network slicing. In this paper, we consider models and methods of slicing that can be used for implementation in telecommunication networks.Each of the considered models has both advantages and limitations. Further studies can be devoted to possible modifications of these models from a client-oriented point of view and to considering the possibility of combining these models depending on the requirements of the network.