In terms of indoor networks, 5G means innovative user features, new organisational productivity opportunities by IoT, factory automation, and new networking services. 5G will implement completely modern architectures to enable Massive IoT and Critical Realtime IoT applications, in addition to developments in multi-Gbps mobile broadband. Wireless communication is also becoming popular in industrial operation day by day due to its low reliable latency. It is needed to control appliances i.e, automated vehicles, machine to machine communication in factories, etc. compare to wired communication, and wireless communication is cost efficient. UWB and millimetre wave bands are suitable for enabling high data rate indoor communication. UWB band can detect the position of devices in accuracy range of 5-10 centimetre and millimetre wave in millimetre range. UWB and millimetre wave can measure the angle of arrival and angle of departure by calculating phase difference between antenna elements. Saleh Valenzuala model is widely adopted for indoor communication which is based on amplitude and time delay model to form clusters. Because of its advantages in industry, wireless networking is increasingly growing to new heights. Most of the channel models are characterized by empirical, statistics, or stochastic model. An empirical channel model is developed for a particular application. So, deterministic channel models e.g, ray tracing model is becoming popular which is based on fresnel coefficient, farmat’s law and electromagnetic propagation theory.