Balanced Duplex Equation and Budgets of Downlink and Uplink Channels in a Cell of a Mobile Communication System Based on It

The purpose: derivation of the balanced duplex equation and development of the calculation method of the downlink and uplink channel budgets in the cell of the GSM-2G mobile communication system. Research methods: circuit analysis of the duplex radio communication conditions for typical structures of the downlink and uplink channels of the cell. The novelty: according to the proposed method, the maximum radio communication range in a GSM-2G cell, due to the limited power of the subscriber station, is calculated based on the parameters of the uplink channel, and the required transmitter power of the base station is determined using the balanced duplex equation based on the parameters of the receiving and transmitting equipment of the base and subscriber stations, as well as the characteristics of the downlink and uplink radio channels. Result: a new balanced duplex equation was obtained and a method for calculating the downlink and uplink channel budgets of the GSM-2G cellular system was proposed. Practical / Theoretical significance: the results of the work can be useful for developers of receiving and transmitting equipment of various radio systems.