1、KPI指標(biāo)分析與處理 2005年5月,切換成功率公式1 切換成功率公式2,KPI指標(biāo)公式,KPI指標(biāo)公式,無(wú)線接通率公式1 無(wú)線接通率公式2,KPI指標(biāo)公式,全網(wǎng)掉話率公式1 全網(wǎng)掉話率公式2,KPI指標(biāo)監(jiān)測(cè),OMCR自定義PM監(jiān)測(cè)模板 觀察全網(wǎng)KPI指標(biāo)情況，收集并排序小區(qū)級(jí)KPI指標(biāo)，分析掉話最高或擁塞最嚴(yán)重的的510個(gè)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(shè)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(jì)項(xiàng)（Path_balance、BER、IOI等） PB2或奇偶值 IOI5或單

2、個(gè)載頻明顯偏高 利用Perf工具過(guò)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(yán)重,高掉話小區(qū)處理思路RF掉話,小區(qū)內(nèi)切換掉話 檢查掉話小區(qū)是否連接有直放、功放等設(shè)備 檢查掉話小區(qū)的Per Carrier統(tǒng)計(jì)項(xiàng)（Path_balance、BER、IOI等） 利用Perf工具過(guò)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(yán)重 檢查切換參數(shù)設(shè)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(nèi)部切換掉話 檢查掉話小區(qū)的Per Carrier統(tǒng)計(jì)

3、項(xiàng)（Path_balance、BER、IOI等） 統(tǒng)計(jì)其鄰區(qū)的IN_INTRA_BSS_HO_RETURN值 檢查上述統(tǒng)計(jì)項(xiàng)（切入返回）高的小區(qū)的Per Carrier統(tǒng)計(jì)項(xiàng)。 打開(kāi)Per Neighbour的統(tǒng)計(jì)項(xiàng)，檢查切向哪個(gè)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(yán)重 檢查切換參數(shù)設(shè)置是否合理和周圍小區(qū)有無(wú)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(jì)項(xiàng)（Path_balance、BER、IOI等） 檢查鄰區(qū)切換信息如LAC、Cell ID、BCCH、BSIC等設(shè)置是否有誤 統(tǒng)計(jì)其鄰區(qū)的IN_INTR

4、A_BSS_HO_RETURN值 檢查上述統(tǒng)計(jì)項(xiàng)（切入返回）高的小區(qū)的Per Carrier統(tǒng)計(jì)項(xiàng)。 打開(kāi)Per Neighbour的統(tǒng)計(jì)項(xiàng)，檢查切向哪個(gè)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(yán)重 檢查切換參數(shù)設(shè)置是否合理和周圍小區(qū)有無(wú)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(guān)參數(shù),上行（Up link) LINK_FAIL：不能解碼減1，恢復(fù)加2；變?yōu)?，停止發(fā)射 LINK_ABOUT_TO FAIL：確定BTS、MS何時(shí)滿功率發(fā)射 T3109：釋放TCH參數(shù) 下行（Down link) RADIO_LINK_TIME

5、OUT ：不能解碼減1，恢復(fù)加2；超時(shí)MS停止發(fā)射 T3109必須大于Radio_link_timeout，防止兩個(gè)手機(jī)同時(shí)占用同一個(gè)TCH信道產(chǎn)生串話現(xiàn)象 FULL_PWR_RF_LOSS設(shè)置為1,切換類型和優(yōu)先級(jí)別,Uplink quality Uplink interference Downlink quality Downlink interference Uplink rxlev Downlink rxlev Distance PBGT,由高到低,切換參數(shù)設(shè)置averaging,切換參數(shù)設(shè)置averaging,Hreqave/Hreqt的設(shè)置 參數(shù)修改命令格式 chg_cell_el

6、ement rxqual_dl_ho, 0 0 4 6 0 0 0 LAC CellID Enter hreqave: 4 Enter hreqt: 3 Enter w_qual: 1 參數(shù)查看命令格式 disp_element rxqual_dl_ho, 0 37 cell_number =4 6 0 0 0 31122 4153 rxqual_dl_ho0 = alg_num: 0 alg_data: 4 3 0,切換參數(shù)設(shè)置Rxqual,下列參數(shù)設(shè)置決定是否做RXqual切換： ul_rxqual_ho_allowed : 上行RXqual切換控制開(kāi)關(guān) dl_rxqual_ho_allo

7、wed : 下行RXqual切換控制開(kāi)關(guān) chg_cell_element rxqual_dl_ho, 0 0 4 6 0 0 0 LAC CELLID chg_cell_element rxqual_ul_ho, 0 0 4 6 0 0 0 LAC CELLID decision_1_n6/decision_1_p6：滿足切換門限的測(cè)量報(bào)告數(shù)目 （經(jīng)過(guò)平均過(guò)的）大于等于P6 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(shù)設(shè)置Interference,下列參數(shù)設(shè)置決定是否做RXqua

8、l切換：. interfer_ho_allowed : 切換開(kāi)關(guān) 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 N7 must be greater than or equal to P7. N7 must be less than or equal to the hreqt value set using chg_cell_element rxlev_ul_ho command for rxlev_dl_ho andrx

9、lev_ul_ho. decision_1_n7/decision_1_p7 thresholds: u_rxlev_dl_ih/u_rxlev_ul_ih 切換門限,interfer_ho_allowed 開(kāi)關(guān)參數(shù) intra_cell_handover_allowed 開(kāi)關(guān)參數(shù) chg_cell_element rxqual_ul_ho, 0 0 4 6 0 0 0 LAC CELLID 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 LA

10、C 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(shù) hop_count_timer 時(shí)間（SACCH）,切換參數(shù)設(shè)置Intracell,切換參數(shù)設(shè)置PBGT,pwr_handover_allowed 開(kāi)關(guān)參數(shù) Use_neighbor_pbgt_hreqave 1=use hreqave in add_nei 0=use hreqave

11、 in add_cell PBGT(n) ho_margin_cell 切換門限,切換參數(shù)設(shè)置擁塞釋放,ho_exist_congest mb_tch_cong_thres congest_ho_margin bounce_protect_margin bounce_protect_cong_tmr If there is no free TCH available when an assignment request is coming in, it is possible to handover existing calls to neighbor cells and free TCHs

12、for new coming calls If ho_exist_congest = 1, handover as many calls as the number of queued assignment requests If ho_exist_congest = 2, handover as many calls as that meet congestion relief criteria,切換參數(shù)設(shè)置 其它,en_incom_ho enable incoming handover inter_cell_handover_allowed ms_distance_allowed : en

13、able 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_initial_assignment bounce_protect_margin bounce_protect_qual_tmr,功率控制RXqual,The following par

14、ameters will determine if the power control has to be done due to rxqual. for power increase: decision_1_n3/decision_1_p3 for power decrease: decision_1_n4/decision_1_p4 uplink thresholds: l_rxqual_ul_p/u_rxqual_ul_p downlink thresholds:l_rxqual_dl_p/u_rxqual_dl_p,功率控制Rxlev,The following parameters

15、will determine if the power control has to be done due to rxlev. for power increase: decision_1_n1/decision_1_p1 for power decrease: decision_1_n2/decision_1_p2 uplink thresholds: l_rxlev_ul_p/u_rxlev_ul_p downlink thresholds: l_rxlev_dl_p/u_rxlev_dl_p,功率控制參數(shù)MS,ms_power_control_allowed enable/disabl

16、e 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 step= 2 SACCH multiframes,default=2) when the MS is sent a new power con

17、trol 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BTS,bts_p_con_interval bts_p_con_ack for BTS power control, same as the previous one. bts_power_control_allowed if disable,

18、 the BTS transmits in max_tx_bts,功率控制步長(zhǎng),pow_inc_step_size_ul pow_inc_step_size_dl sets the step size for uplink and downlink power increase in dB pow_red_step_size_ul pow_red_step_size_dl sets the step size for uplink and downlink power decrease in dB,功率控制rapid pwr down,rapid_pwr_down enable/disable of this feature 0 = OFF