摘要
Deep analysis of call detail log of the alarming information indicates that reasons except user equipment(UE)issue are usually ignored.To effectively reduce call drop rate in wideband code division multiple access(WCDMA)mobile communication system,a novel method is presented.First,the reliable trace information is extracted to observe the distribution of all the exceptions from radio network controller(RNC)daily report.Then,the antenna angle of generalized clustering network in 024 base station’s c sector(GCN024C)for environmental test(ET)which is obtained from the radio frequency(RF)engineer is manually changed from 4° to 6°.Experimental results show that the proposed method can guarantee the key performance indicators(KPI)of WCDMA and have obvious effect on reducing call drop rate.
Deep analysis of call detail log of the alarming information indicates that reasons except user equipment （UE） issue are usually ignored. To effectively reduce call drop rate in wideband code division multiple access （WCDMA） mobile communication system, a novel method is presented. First, the reliable trace information is extracted to observe the distribution of all the exceptions from radio network controller （RNC） daily report. Then, the antenna angle of generalized clustering network in 024 base station＇s c sector （GCN024C） for environmental test （ET） which is obtained from the radio frequency （RF） engineer is manually changed from 4＊ to 6＊. Experimental results show that the proposed method can guarantee the key performance indicators （KPI） of WCDMA and have obvious effect on reducing call drop rate.
