1、KPI指標分析與處理 2005年5月切換成功率公式1切換成功率公式2KPI指標公式KPI指標公式無線接通率公式1無線接通率公式2KPI指標公式全網掉話率公式1全網掉話率公式2KPI指標監(jiān)測OMCR自定義PM監(jiān)測模板 觀察全網KPI指標情況，收集并排序小區(qū)級KPI指標，分析掉話最高或擁塞最嚴重的的510個小區(qū)，定位故障原因，派發(fā)排障工單。利用GETPM工具利用MotoANS系統(tǒng)。檢查掉話小區(qū)是否連接有直放、功放等設備檢查掉話在該小區(qū)的載頻上分布情況檢查掉話小區(qū)的Per Carrier統(tǒng)計項（Path_balance、BER、IOI等） PB2或奇偶值 IOI5或單個載頻明顯偏高利用Perf工具過

2、濾Ma_fail_from_ms高的載頻檢查掉話小區(qū)的周圍小區(qū)是否存在斷站情況檢查掉話小區(qū)周圍基站是否擁塞嚴重高掉話小區(qū)處理思路RF掉話小區(qū)內切換掉話檢查掉話小區(qū)是否連接有直放、功放等設備檢查掉話小區(qū)的Per Carrier統(tǒng)計項（Path_balance、BER、IOI等）利用Perf工具過濾Ma_fail_from_ms高的載頻檢查掉話小區(qū)的周圍小區(qū)是否存在斷站情況檢查掉話小區(qū)周圍基站是否擁塞嚴重檢查切換參數設置是否合理高掉話小區(qū)處理思路切換掉話高掉話小區(qū)處理思路切換掉話BSC內部切換掉話檢查掉話小區(qū)的Per Carrier統(tǒng)計項（Path_balance、BER、IOI等）統(tǒng)計其鄰區(qū)的I

3、N_INTRA_BSS_HO_RETURN值檢查上述統(tǒng)計項（切入返回）高的小區(qū)的Per Carrier統(tǒng)計項。打開Per Neighbour的統(tǒng)計項，檢查切向哪個鄰區(qū)的成功率較低檢查掉話小區(qū)的周圍小區(qū)是否存在斷站情況檢查掉話小區(qū)周圍基站是否擁塞嚴重檢查切換參數設置是否合理和周圍小區(qū)有無同BCCH、BSIC的小區(qū) BSC之間切換掉話檢查掉話小區(qū)的Per Carrier統(tǒng)計項（Path_balance、BER、IOI等）檢查鄰區(qū)切換信息如LAC、Cell ID、BCCH、BSIC等設置是否有誤統(tǒng)計其鄰區(qū)的IN_INTRA_BSS_HO_RETURN值檢查上述統(tǒng)計項（切入返回）高的小區(qū)的Per Ca

4、rrier統(tǒng)計項。打開Per Neighbour的統(tǒng)計項，檢查切向哪個鄰區(qū)的成功率較低檢查掉話小區(qū)的周圍小區(qū)是否存在斷站情況檢查掉話小區(qū)周圍基站是否擁塞嚴重檢查切換參數設置是否合理和周圍小區(qū)有無同BCCH、BSIC的小區(qū)高掉話小區(qū)處理思路切換掉話RF掉話相關參數上行（Up link) LINK_FAIL：不能解碼減1，恢復加2；變?yōu)?，停止發(fā)射 LINK_ABOUT_TO FAIL：確定BTS、MS何時滿功率發(fā)射 T3109：釋放TCH參數 下行（Down link) RADIO_LINK_TIMEOUT ：不能解碼減1，恢復加2；超時MS停止發(fā)射 T3109必須大于Radio_link_ti

5、meout，防止兩個手機同時占用同一個TCH信道產生串話現象FULL_PWR_RF_LOSS設置為1 切換類型和優(yōu)先級別Uplink qualityUplink interferenceDownlink qualityDownlink interferenceUplink rxlevDownlink rxlevDistancePBGT由高到低切換參數設置averagingHreqave = 3Hreqt = 3-85-88-88-91-91-89-88-86-87-96-95-94-94-92-91-91N = 3P = 2-90.3-88-86-88.3-87-91-89.3-87.7-91

6、-90.3-88-91.7表示多少個采樣點進行平均表示保留多少個平均值Averaging :注意:N=Hreqt Hreqave*Hreqt=32切換參數設置averagingHreqave/Hreqt的設置參數修改命令格式chg_cell_element rxqual_dl_ho, 0 0 4 6 0 0 0 LAC CellIDEnter hreqave: 4Enter hreqt: 3 Enter w_qual: 1 參數查看命令格式disp_element rxqual_dl_ho, 0 37 cell_number =4 6 0 0 0 31122 4153rxqual_dl_ho0

7、 = alg_num: 0 alg_data: 4 3 0切換參數設置Rxqual下列參數設置決定是否做RXqual切換：ul_rxqual_ho_allowed : 上行RXqual切換控制開關dl_rxqual_ho_allowed : 下行RXqual切換控制開關chg_cell_element rxqual_dl_ho, 0 0 4 6 0 0 0 LAC CELLIDchg_cell_element rxqual_ul_ho, 0 0 4 6 0 0 0 LAC CELLIDdecision_1_n6/decision_1_p6：滿足切換門限的測量報告數目 （經過平均過的）大于等于P

8、6 l_rxqual_dl_h： RXqual切換控制門限 l_rxqual_ul_h：命令格式 chg_element decision_1_n1 切換參數設置Interference下列參數設置決定是否做RXqual切換：.interfer_ho_allowed : 切換開關chg_cell_element rxlev_ul_ho, 0 0 4 6 0 0 0 LAC CELLIDchg_cell_element rxlev_dl_ho, 0 0 4 6 0 0 0 LAC CELLID N7 must be greater than or equal to P7. N7 must be

9、less than or equal to the hreqt value set using chg_cell_element rxlev_ul_ho command for rxlev_dl_ho andrxlev_ul_ho.decision_1_n7/decision_1_p7thresholds: u_rxlev_dl_ih/u_rxlev_ul_ih 切換門限 interfer_ho_allowed 開關參數 intra_cell_handover_allowed 開關參數chg_cell_element rxqual_ul_ho, 0 0 4 6 0 0 0 LAC CELLID

10、 chg_cell_element rxqual_dl_ho, 0 0 4 6 0 0 0 LAC CELLID chg_cell_element rxlev_ul_ho, 0 0 4 6 0 0 0 LAC CELLID chg_cell_element rxlev_dl_ho, 0 0 4 6 0 0 0 LAC CELLID n6/p6 n7/p7 判決條件 u_rxlev_ul_ih/u_relev_dl_ih l_rxqual_ul_h/u_rxqual_dl_h 切換門限 hop_count 切換次數 hop_count_timer 時間（SACCH）切換參數設置Intracell

11、切換參數設置PBGT pwr_handover_allowed 開關參數 Use_neighbor_pbgt_hreqave1=use hreqave in add_nei0=use hreqave in add_cell PBGT(n) ho_margin_cell 切換門限切換參數設置擁塞釋放ho_exist_congestmb_tch_cong_threscongest_ho_margin bounce_protect_margin bounce_protect_cong_tmr If there is no free TCH available when an assignment r

12、equest is coming in, it is possible to handover existing calls to neighbor cells and free TCHs for new coming callsIf ho_exist_congest = 1, handover as many calls as the number of queued assignment requestsIf ho_exist_congest = 2, handover as many calls as that meet congestion relief criteria切換參數設置

13、其它en_incom_ho enable incoming handoverinter_cell_handover_allowedms_distance_allowed : enable distance handover decision_1_n8/decision_1_p8 thresholds: ms_max_range the ms_max_range is also used by RRSM to reject Channel Requests from distant mobiles. This feature is enabled by chg_element poor_init

14、ial_assignmentbounce_protect_margin bounce_protect_qual_tmr功率控制RXqualThe following parameters will determine if the power control has to be done due to rxqual.for power increase: decision_1_n3/decision_1_p3for power decrease: decision_1_n4/decision_1_p4uplink thresholds: l_rxqual_ul_p/u_rxqual_ul_pd

15、ownlink thresholds:l_rxqual_dl_p/u_rxqual_dl_p功率控制RxlevThe following parameters will determine if the power control has to be done due to rxlev.for power increase: decision_1_n1/decision_1_p1for power decrease: decision_1_n2/decision_1_p2uplink thresholds: l_rxlev_ul_p/u_rxlev_ul_pdownlink threshold

16、s: l_rxlev_dl_p/u_rxlev_dl_p功率控制參數MSms_power_control_allowedenable/disable MS power control, if disabled, the MS transmits in max_tx_ms.ms_p_con_interval (0-31 , 1 step= 2 SACCH multiframes,default=2)the minimum time in BSS interval between successive power control commands.ms_p_con_ack (0-31 , 1 st

17、ep= 2 SACCH multiframes,default=2) when the MS is sent a new power control message, it will change transmit power and then echoes an ack message. The ms_p_con_interval will only be started when ack has been received or this timer has expired.功率控制BTSbts_p_con_intervalbts_p_con_ackfor BTS power contro

18、l, same as the previous one.bts_power_control_allowedif disable, the BTS transmits in max_tx_bts功率控制步長pow_inc_step_size_ulpow_inc_step_size_dlsets the step size for uplink and downlink power increase in dBpow_red_step_size_ulpow_red_step_size_dlsets the step size for uplink and downlink power decrease in dB功率控制rapid pwr downrapid_pwr_downenable/disable