[互联网]东莞网络优化培训资料.ppt

东 莞 联 通 GSM 系统 网 络 优 化 技 术 交 流 内容 GSM系统性能评估 系统优化流程 系统优化的主要内容 系统性能分析 数据库参数介绍 切换算法 系统频率规划 优化工具－ESASTCOM2000 ，WP，Net in hand 一、GSM系统性能评估 GSM系统性能评估 在现有的网络资源的基础上，致力提高网络的运营性能，达到所制定的网络表现目标 网络数据指标是衡量网络运行表现最准确的标准 基于系统现在的运行情况和性能指标，根据实际情况提出可行的系统优化指标 Call Set Up Success Rate 呼叫建立成功率 (total_calls + congest_assign_ho_suc) * 100% ______________________________________________________________ ok_acc_proc[cm_serv_req_call] + ok_acc_proc[cm_serv_req_emerg] + ok_acc_proc[cm_serv_req_sms] + ok_acc_proc[cm_reestablish] + ok_acc_proc[page_response] - sms_init_on_sdcch GSM系统性能评估 Drop call rate 掉话率 Cell Level rf_losses_tch + intra_cell_ho[intra_cell_ho_lostms] +out_intra_bss_ho[out_intra_bss_ho_lostms] + out_inter_bss_ho[out_inter_bss_ho_cleared] _________________________________________________________ * 100% total_calls + congest_assign_ho_suc + in_inter_bss_ho[in_inter_bss_ho_suc] in_intra_bss_ho[in_intra_bss_ho_suc] BSS Level rf_losses_tch + intra_cell_ho[intra_cell_ho_lostms] + out_intra_bss_ho[out_intra_bss_ho_lostms] + out_iner_bss_ho[out_inter_bss_ho_cleared] _________________________________________________________ * 100% total_calls + congest_assign_ho_suc + in_inter_bss_ho[in_inter_bss_ho_suc] GSM系统性能评估 Network Level rf_losses_tch + intra_cell_ho[intra_cell_ho_lostms] + out_intra_bss_ho[out_intra_bss_ho_lostms] + out_iner_bss_ho[out_inter_bss_ho_cleared] _________________________________________________*100% total_calls + congest_assign_ho_suc GSM系统性能评估 Handover Success Rate 切换成功率 out_inter_bss_ho_suc+ intra_cell_ho_suc+ out_intra_bss_ho_suc _________________________________________________*100% out_inter_bss_ho_atmpt+ intra_cell_ho_atmpt+ out_intra_bss_ho_atmpt GSM系统性能评估 TCH Blocking Rate 话音信道拥塞率 alloc_tch_fail * 100% ____________________ alloc_tch + alloc_tch_fail SDCCH Blocking Rate 信令信道拥塞率 alloc_sdcch_fail * 100% ___________________________ alloc_sdcch + alloc_sdcch_fail ? 二、系统优化流程 系统优化流程 工具的安装和准备 Net in hand, EAS