RADIO LINE ALLOCATION JUDGING METHOD IN MOBILE COMMUNICATION SYSTEM AND RADIO LINE CONTROLLER

摘要

A method for judging radio line allocation in a mobile communication system, which can prevent rapid deterioration of the durability against the same frequency interference wave attributed to the lowering of the reception level of the communication channel due to, for example, a move of the mobile station. When a communication request of a mobile station is received along with the results of measurement of the reception level of a level measuring channel, an unused allocation candidate frequency and an unused allocation candidate radio channel are selected, and the carrier-to-interference ratio (CIR) corresponding to the reception level is found from a table. The results of measurement of the interference wave reception levels of the allocation candidate frequency and radio channel are acquired from the mobile station. It is judged whether or not the interference wave reception level fulfills the carrier-to-interference ratio (CIR), and the selected frequency and radio channel are allotted if it fulfills. A radio line controller is also disclosed.