초록 ▼

A mobile station measures the field intensity and bit error rate of a downlink radio wave from a base station at each measurement timing and reports the measured results to the base station. Upon receiving the measured results from each mobile station, the base station compares the measured results

A mobile station measures the field intensity and bit error rate of a downlink radio wave from a base station at each measurement timing and reports the measured results to the base station. Upon receiving the measured results from each mobile station, the base station compares the measured results with a reference characteristic to determine if they are abnormal or not. The base station acquires the determined results of the measured results for a fixed period of time and statistically processes them to judge the state of interference.

대표청구항 ▼

A method for monitoring the state of interference in each zone of a mobile radio communication system wherein a mobile station in each zone performs communication via a base station of said each zone, said method comprising the steps of: (a) periodically measuring, by said mobile station, the field

A method for monitoring the state of interference in each zone of a mobile radio communication system wherein a mobile station in each zone performs communication via a base station of said each zone, said method comprising the steps of: (a) periodically measuring, by said mobile station, the field intensity and quality of a downlink radio wave from said base station; (b) reporting measured results from said mobile station to said base station; (c) collecting, by said base station for a predetermined period of time, said measured results reported from said mobile station and statistically processing said collected measured results into data about the state of interference by comparing said measured results with a predetermined reference characteristic to judge whether said measured results are abnormal or not, said reference characteristic being a characteristic predetermined on the basis of a characteristic representing an ideal relationship between field intensity and bit error rate; and (d) evaluating said data about said state of interference, thereby judging the state of interference between the radio wave from said base station and other radio waves of the same frequency as that of said radio wave from said base station, it being judged whether said measured results are abnormal by comparing said measured results with said bit error rate defined by said reference characteristic, the ratio of the number of measured results judged as abnormal to the number of measured results collected for said predetermined period of time being used as an index indicating said state of interference.