Saturday, December 30, 2023
Saturday, December 30, 2023
Friday, April 12, 2024
简要说明基于SDH技术的MSTP所能提供的光接口和电接口类型。...
Saturday, September 23, 2023
Monday, November 13, 2023
Monday, January 22, 2024
Tuesday, September 26, 2023
Friday, April 12, 2024
Friday, April 12, 2024
Sunday, September 24, 2023
Sunday, September 24, 2023
Saturday, December 30, 2023
简要比较SDH网元的TM、ADM、REG功能及其应用场合。...
Sunday, December 31, 2023
Monday, January 22, 2024
Monday, January 22, 2024
简述同步设备定时源(SETS)的工作方式及其应用场合。...
Saturday, December 30, 2023
Monday, January 22, 2024
某三扇区GSM、CDMA基站,每扇区均配置了14个业务信道单元,无线呼损为5%,每用户平均忙时话务量为0.02 Erl。试问:GSM基站能容纳多少用户?CDMA基站能容纳多少用户?...
Sunday, December 31, 2023
Monday, November 13, 2023
Saturday, December 30, 2023