flexi bsc 培訓(xùn)材料

1、第一局部:Flexi BSC及DX200平臺、MML命令簡介一、Flexi BSC特點: 1 最大支持18,000 Erlangs話務(wù)量。 2 最大支持30720個數(shù)據(jù)業(yè)務(wù)信道。 3 最大支持3000個載頻和3000個小區(qū)。 4 平均容量更低的能耗。 5 支持多種接口，支持IP E1/T1 STM-1/OC-3 6 良好的備份系統(tǒng)，故障管理，過載保護(hù)。 二、DX200平臺MML介紹 1 每個MML的命令的執(zhí)行需要以分號結(jié)尾。 2 每個MML命令由3級菜單構(gòu)成。 3 每個MML命令前邊的字母Z表示回到最初級的菜單，沒有任務(wù)其他含義。 4 局部MML命令執(zhí)行的時候會有確認(rèn)，如需執(zhí)行請輸入y 否那么

2、輸入n。 5 在寫MML命令輸入?yún)?shù)的過程中，回車鍵不帶表執(zhí)行，只會提示下一步該輸入什么參數(shù)。三、FlexiBSC硬件介紹： 1、 FlexiBSC CPU單元介紹 OMU：每個BSC只有一個OMU單元，狀態(tài)應(yīng)為WO-EX。該單元出現(xiàn)問題將影響MML接入，但不影響業(yè)務(wù)。 在MML中查看OMU狀態(tài)的命令為：ZUSI:OMU; MCMU：1+12N備份，1個WO-EX，一個SP-EX。MCMU單元主要功能為控制BCSU單元，此單元非常重要，如果2個MCMU單元都不處在WO-EX階段，那么系統(tǒng)會重啟，會暫時喪失一切業(yè)務(wù)，故排查故障時白天不要輕易切換或?qū)λM(jìn)行操作。在MML中查看MCMU狀態(tài)的命令為：

3、ZUSI:MCMU;BCSU：N+1備份，只有一個是SP-EX，其余都是WO-EX。BCSU單元主要負(fù)責(zé)信令的處理與對數(shù)據(jù)業(yè)務(wù)的支持。在MML中查看BCSU狀態(tài)的命令為：ZUSI:BCSU;2、Flexi BSC其他單元介紹1 GSW2KB 交換矩陣。CLS1+1備份，1個WO-EX，一個SP-EX。此單元為時鐘單元，非常重要，正常情況下建議白天不要輕易切換或?qū)λM(jìn)行操作。在MML中查看CLS狀態(tài)的命令為：ZUSI:CLS;傳輸板框ETC或者GT1CMB/EMB：1+1備份，1個WO-EX，一個SP-EX。此單元為CPU單元之間通信的消息總線，非常重要，正常情況下建議白天不要輕易切換或?qū)λM(jìn)行

4、操作。在MML中查看MB狀態(tài)的命令為：ZUSI:MB;四、在FlexiBSC中創(chuàng)立基站的流程1、 創(chuàng)立信令：ZDSE:OM001:BCSU,0:62,1:64,265-31:M,2; /BCF link ZDSE:T0011:BCSU,0:0,1:64,265-31:M,2; /TRX link2 、創(chuàng)立BCF： ZEFC:1,X,M:DNAME=OM001:PORT0=267,PORT2=268,PORT4=269;3、 創(chuàng)立BTS:ZEQC:BCF=4,BTS=8,NAME=GSMINGBO3:CI=49203,BAND=900, CHW=2:NCC=5,BCC=7:MNC=00,MCC=

5、460,LAC=6378:HOP=BB,HSN1=11,HSN2=11;4、 創(chuàng)立TRXZERC:BTS=4,TRX=1:GTRX=N,DAP=N,PREF=P:FREQ=27,TSC=7,PCMTSL=267-1:DNAME=T0041:CH0=MBCCH,CH1=SDCCH,CH2=TCHD,CH3=TCHD,CH4=TCHD,CH5=TCHD,CH6=TCHD,CH7=SDCCH;分SEG和支持EDGE的FCU5、創(chuàng)立功率參數(shù)ZEUC:SEG=4;6、 創(chuàng)立切換參數(shù)ZEHC:SEG=4;7、 創(chuàng)立臨區(qū)參數(shù)ZEAC:SEG=4:MCC=460,MNC=00,LAC=30027,CI=262

6、61:NCC=4,BCC=5,FREQ=49:RAC=100激活信令：ZDTC:T0001:WO;解鎖TRX: ZERS:BTS=1,TRX=1:U;解鎖BTS: ZEQS:BTS=1:U;解鎖BCF: ZEFS:BCF=1:U;舉例建好的基站，查看命令：ZEEI ZEEI:BCF=36;LOADING PROGRAM VERSION 22.4-0FlexiBSC HRBBSC2 2021-03-10 17:35:19RADIO NETWORK CONFIGURATION IN BSC: E P B F T R C D-CHANNEL BUSY AD OP R ET- BCCH/CBCH/ R

7、 E S O&M LINK HR FR LAC CI HOP ST STATE FREQ T PCM ERACH X F U NAME ST /GP= = = = = = = = = = = = = =BCF-0036 BTSPLUS-M U WO 2 BF036 WO 09723 15218 BTS-0036 U WO 0 1 MLJIXINGG1 -/- 1 TRX-001 U WO 96 0 308 MBCCH P 2 09723 25218 BTS-0037 U WO 0 1 MLJIXINGG2 -/- 1 TRX-002 U WO 112 0 308 MBCCH P 2 09723

8、 35218 BTS-0038 U WO 4 2 MLJIXINGG3 -/- 2 EDGE TRX-003 U WO 121 0 308 P 2 TRX-004 U WO 110 0 308 MBCCH P 2 EDGE TRX-005 U WO 119 0 308 2第二局部：BSC 系統(tǒng)告警監(jiān)測與日常維護(hù)一 、 定時的系統(tǒng)備份軟件包狀態(tài)介紹：ZWQD /刪除數(shù)據(jù)包ZWKS /執(zhí)行備份命令 ZWKI /查看備份進(jìn)程 一次備包需要時間約10分鐘 ZWQB / 校驗備份后的軟件包NOTICE:1 系統(tǒng)只能記錄8個注冊的軟件包，到達(dá)8個包后，需要先刪除不用的包再備份新的包 2 備份過程中，不要進(jìn)

9、行任何其他操作，也不要執(zhí)行除了查看命令以外的任何命令。建議每周備份。二、 重要單元狀態(tài)檢查ZUSI OMU MCMU BCSU CLS EMB TCSMOMU：只有一個OMU單元，狀態(tài)應(yīng)為WO-EX。該單元出現(xiàn)問題將影響MML接入，但不影響業(yè)務(wù)。MCMU：1+1備份，1個WO-EX，一個SP-EX。此單元非常重要，排查故障時白天不要輕易切換或?qū)λM(jìn)行操作。BCSU：N+1備份，只有一個是SP-EX，其余都是WO-EX。BCSU單元主要負(fù)責(zé)信令的處理與對數(shù)據(jù)業(yè)務(wù)的支持。CLS：1+1備份，1個WO-EX，一個SP-EX。此單元為時鐘單元，非常重要，正常情況下建議白天不要輕易切換或?qū)λM(jìn)行操作。

10、MB：1+1備份，1個WO-EX，一個SP-EX。此單元為CPU單元之間通信的消息總線，非常重要，正常情況下建議白天不要輕易切換或?qū)λM(jìn)行操作。TCSM：正常情況下都應(yīng)該是WO-EX。檢查各單元狀態(tài)時應(yīng)注意INFO一欄的附加信息，比方是否有FLTY信息，如果有而且該單元在SE-OU或者TE-EX狀態(tài)那么此單元可能出現(xiàn)了故障，可以將此單元校至TE狀態(tài)進(jìn)行診斷，并查看當(dāng)前和歷史告警分析原因。TCSM可以使用ZDTF:TCSM檢查BSC至TCSM的LAPD信令是否正常?？偨Y(jié)：如果MCMU、CLS、MB出現(xiàn)了故障應(yīng)立即通知相關(guān)人員，第一時間處理，同時對以上單元操作要謹(jǐn)慎。如果OMU、BCSU、TCSM

11、出現(xiàn)了故障，建議盡快處理。 IO設(shè)備狀態(tài)檢查ZISIWDU：WDU為硬盤，每個BSC共有2個。狀態(tài)都是WO-BU?？偨Y(jié)：如果硬盤出現(xiàn)了故障應(yīng)立即通知相關(guān)人員，分析處理，同時不能重起單元。三 、 CCS7信令鏈路檢查與GB鏈路檢查 ZNET；所有CCS7信令正常狀態(tài)是AV-EX。LOG： LINK TERM LOG EXTERN INTERN BIT LINK LINK SET STATE UNIT TERM FUNCT TERM PCM-TSL PCM-TSL RATE = = = = 0 16 KMG10 AV-EX BCSU-3 0 0 0 32-31 16-00 64 1 16 KMG1

12、0 AV-EX BCSU-5 0 0 0 34-31 24-00 64 ZFXO:BCSU=0&6; 所有GB LINK正常狀態(tài)都為WO-EX，AV-EX。LOG：NSEI-00102 BCSU-05 PCU-03NS-VC ADM OP DLCI OP CIR BEARER CHANNELID NAME STATE STATE STATE ID NAME- - - - -00102 NSVC_102 U WO-EX 016 AV-EX 0192 0002 BCH_2總結(jié)：如果GB 信令鏈路狀態(tài)異常，那么會影響GPRS業(yè)務(wù)，應(yīng)立即通知相關(guān)人員檢查處理，通?？梢院蚐GSN工程師配合處理。如果CC

13、S7信令鏈路狀態(tài)異常，應(yīng)盡快排查原因處理，同時使用ZCEL和ZEEL指令查看用戶數(shù)是否正常，如果發(fā)現(xiàn)該BSC用戶數(shù)量比平時急劇下降那么立即通知相關(guān)人員檢查原因處理。 四、 告警查看與分析告警分類NOTICE注意：交換設(shè)備 0-799O&M設(shè)備 800-899傳輸設(shè)備 900-999DISTUR干擾：交換設(shè)備 1000-1799O&M設(shè)備 1800-1899傳輸設(shè)備 1900-1999ALARM告警：交換設(shè)備 2000-2799、3000-3799O&M設(shè)備 2800-2899、3800-3899傳輸設(shè)備 2900-2999、3900-3999 診斷報告：診斷報告號 3700-3999外部告警：

14、交換設(shè)備 4000-4799O&M設(shè)備 4800-4899傳輸設(shè)備 4900-4999供電設(shè)備 5000-5499外部設(shè)備 5500-5999基站告警： 7000-7999傳輸設(shè)備告警： 8000-8999相關(guān)命令：ZAHO 查看BSC當(dāng)前的活動告警ZAHP 查看BSC 歷史告警ZEOL 查看 BSC側(cè)觀察的基站當(dāng)前活動告警 ZEOH 查看 BSC側(cè)觀察的基站歷史告警傳輸類告警2915FAULT RATE MONITORING KM_BSC71 BCSU-5 TRANSM 2006-09-27 01:04:05.50* ALARM ET-120 1B002-01 ERDSUP (8712) 2

15、915 FAULT RATE MONITORING ET 120d 00 總結(jié)：2915、2900、2909、2902一般來說是表示傳輸已經(jīng)中斷，其它告警那么表示誤碼或者滑碼較高，會影響傳輸質(zhì)量。在判斷傳輸是否正常時除了看告警，也要檢查ET板的狀態(tài)是否正常ZUSI:ET,XX;傳輸質(zhì)量還可通過指令ZYMO:ET,XX;來查看。單元故障類告警2950 TRCO FAILURE TRCO故障 BS_BSC32 OMU TRANSM 2006-11-26 16:04:20.75 * ALARM TCSM-36 4B120-61 PXRECE (0536) 2950 TRCO FAILURE 0 信令

16、鏈路中斷類故障告警*2072 FAILURE IN SIGNALLING LINK ACTIVATION OR RESTORATION某條7號信令鏈路中斷，對系統(tǒng)影響很大，容易造成A接口信令鏈路負(fù)載不均衡，同時如果多條CCS7信令鏈路出現(xiàn)此問題那么需要盡快處理。首先查看是否是傳輸中斷引起，是否有TCSM的告警，可以和MSC/MSS工程師配合處理，打死、激活、重啟TCSM、有時甚至需要刪除重建。 掉話類故障告警2992 BTS AND TC UNSYNCHRONIZATION CLEAR CALLS ON A INTERFACE KM_BSCC8 BCSU-2 TRANSM 2006-11-24

17、 12:01:53.29 . CANCEL . SC7_BX (7362) 2992 BTS AND TC UNSYNCHRONIZATION CLEAR CALLS ON A INTERFACE 1458d 24d 06D8 54d 24d 54d 23d 0d 03 24d 出現(xiàn)問題時對BSC的全面檢查 由于整個通信網(wǎng)絡(luò)是由有許多網(wǎng)元組成，因此在處理BSC業(yè)務(wù)受到影響的故障時，不能僅僅局限于BSC網(wǎng)元自身的檢查，也需要其它網(wǎng)元工程師的積極配合，才能快速而又準(zhǔn)確定位故障原因，從而使故障得以及時解決。系統(tǒng)當(dāng)前告警 ： ZAHO； (需對所有告警分析和逐一檢查)系統(tǒng)用戶情況 ： ZEEL:BL;

18、 此步為確認(rèn)系統(tǒng)是否有用戶，無線基站是否有斷站情況系統(tǒng)主要單元狀態(tài)： ZUSI:COMP; ZUSI:CLS; ZUSI:MB; 系統(tǒng)主要外接單元狀態(tài)： ZISI:WDU; 系統(tǒng)A口信令狀態(tài)： ZNET;系統(tǒng)A口信令鏈路集： ZNSI:NA1;系統(tǒng)路由狀態(tài)： ZNRI:NA1;系統(tǒng)子系統(tǒng)狀態(tài)： ZNHI:NA1;系統(tǒng)SCCP 層狀態(tài)： ZNFI:NA1;系統(tǒng)播送狀態(tài)： ZOBI:NA1; ZOBL:NA1;系統(tǒng)時鐘同步： ZDRI; ZDCD;系統(tǒng)電路狀態(tài)： ZCEL:CGR=;系統(tǒng)GB 信令鏈路： ZFUI; ZFXO ZF WO:BCSU=0&8:BTS;系統(tǒng)歷史告警： ZAHP;系統(tǒng)基站

19、告警： ZEOL;系統(tǒng)人機命令記錄： ZIGO系統(tǒng)軟件包情況： ZWQO:CR; ZWQO:RUN; ZEWL;第三局部：BSC 局?jǐn)?shù)據(jù)集成一 A接口集成Create signalling links (NCC). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlncc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&poi

20、nter=cmdncc l cmdncc t _blank ZNCC:,:BCSU,:;ParameterExplanationparameter set numberETSI: value 0 is recommended.ANSI SS7: value 2 must be used.Create the local signalling point code (NRP). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnrp&edi

21、tion=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnrp l cmdnrp t _blank ZNRP:,SEP:STAND=:;ParameterExplanationss7 standardETSI: ITU-T is usually used. ANSI: ANSI is recommended.number of spc subfieldsETSI: value 1 is usually used. ANSI: value 3 is usually used

22、.Create the signalling link set (NSC).To implement this step, choose one of the following alternatives: Create the signalling link set for the control plane directly to the MSS. HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnsc&edition=0&langu

23、age=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnsc l cmdnsc t _blank ZNSC:,:,;The signalling link code of the signalling link must be the same as the code of the corresponding link in the MSC.You can add up to four signalling links to the signalling link set. Repeat th

24、e last three parameters for each signalling link.Create the signalling link set for the Ater interface transparently via the MGW to the MSC server. HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnsc&edition=0&language=en&coverage=global&encodin

25、g=xhtml_1_0&component=data&item=data&pointer=cmdnsc l cmdnsc t _blank ZNSC:,:,;The parameters signalling network and signalling point code define the network element where the signalling link set leads to.Add links to the signalling link set (NSA).This step is needed only if all the links were not a

26、dded to the link set in the previous step. HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnsa&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnsa l cmdnsa t _blank ZNSA:,:,;Create the signalling rout

27、e set (NRC).To implement this step, choose one of the following alternatives: Create the signalling route set for the control plane directly to the MSS. HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnrc&edition=0&language=en&coverage=global&en

28、coding=xhtml_1_0&component=data&item=data&pointer=cmdnrc l cmdnrc t _blank ZNRC:,:,0;ParameterExplanationparameter set numberValue 1 is recommended.load sharing statusD is recommended.restriction statusR is recommended.Create the signalling route set for the Ater interface transparently via the MGW

29、to the MSC server.Direct connections: HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnrc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnrc l cmdnrc t _blank ZNRC:,:,0;STP configurations: HYPERLINK

30、:/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnrc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnrc l cmdnrc t _blank ZNRC:,:,0;ParameterExplanationparameter set numberValue 0 is recommended in STP configur

31、ations, value 1 for direct connectionsload sharing statusD is recommended.restriction statusN is recommended in STP configurations, R for direct connections.Allow activation of the signalling links (NLA). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identi

32、fier=mmlnla&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnla l cmdnla t _blank ZNLA:;Allow activation of the signalling route (NVA).To implement this step, choose one of the following alternatives: Allow activation of the signalling route for the contr

33、ol plane directly to the MSS. HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnva&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnva l cmdnva t _blank ZNVA:,:;Allow activation of the signalling route

34、 for the Ater interface transparently via the MGW to the MSC server. HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnva&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnva l cmdnva t _blank ZNVA:,:,;

35、Change signalling link states (NLC). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnlc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnlc l cmdnlc t _blank ZNLC:,ACT:;Change route set state (NVC).T

36、o implement this step, choose one of the following alternatives: Change route set state for the control plane directly to the MSS. HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnvc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&compo

37、nent=data&item=data&pointer=cmdnvc l cmdnvc t _blank ZNVC:,:ACT;Change route set state for the Ater interface transparently via the MGW to the MSC server. HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnvc&edition=0&language=en&coverage=global&

38、encoding=xhtml_1_0&component=data&item=data&pointer=cmdnvc l cmdnvc t _blank ZNVC:,:,:ACT;Creating the SCCPCreate service (NPC). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnpc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&compone

39、nt=data&item=data&pointer=cmdnpc l cmdnpc t _blank ZNPC:,03,SCCP:Y:Y,208,10F;Define SCCP for the BSCs own signalling point (NFD). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnfd&edition=0&language=en&coverage=global&encoding=xhtml_1_0&compon

40、ent=data&item=data&pointer=cmdnfd l cmdnfd t _blank ZNFD:,:,;ParameterExplanationsignalling point parameter set numberETSI: value 1 is recommended.ANSI: no recommended value.subsystem numberETSI: FE, ANSI: DE.subsystem nameETSI: BSSAP, ANSI: RSAP.subsystem parameter set numberETSI: value 1 is recomm

41、ended.ANSI: no recommended value.Define SCCP for the MSCs or MSSs signalling point (NFD). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnfd&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnfd l cmdn

42、fd t _blank ZNFD:,:,;See the previous step for recommended parameter values.Modify broadcast status of SCCP signalling points (OBM). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlobm&edition=0&language=en&coverage=global&encoding=xhtml_1_0&com

43、ponent=data&item=data&pointer=cmdobm l cmdobm t _blank ZOBM:,:Y;ParameterExplanationsubsystem numberETSI: FE, ANSI: DE.subsystem nameETSI: BSSAP, ANSI: RSAP.Modify the local broadcast status of SCCP subsystems (OBC). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_

44、06_27&identifier=mmlobc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdobc l cmdobc t _blank ZOBC:,:Y;ParameterExplanationsubsystem numberETSI: FE, ANSI: DE.subsystem nameETSI: BSSAP, ANSI: RSAP.Change the SCCP state at BSC side (NGC). HYPERLINK :/127.0.

45、0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlngc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdngc l cmdngc t _blank ZNGC:,:ACT;Change the SCCP state at MSC side (NGC). HYPERLINK :/127.0.0.1:43231/NED/NED?action=r

46、etrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlngc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdngc l cmdngc t _blank ZNGC:,:ACT;Change subsystem state at BSC side (NHC). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_b

47、ss14_v2x_2021_06_27&identifier=mmlnhc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnhc l cmdnhc t _blank ZNHC:,:ACT;The value of the parameter subsystem is BSSAP in ETSI and RSAP in ANSI.Change subsystem state at MSC or MSS side (NHC). HYPERLINK :/127.

48、0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlnhc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdnhc l cmdnhc t _blank ZNHC:,:ACT;The value of the parameter subsystem is BSSAP in ETSI and RSAP in ANSI.Creating the

49、 speech channelsCreate a circuit group (RCC). HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlrcc&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdrcc l cmdrcc t _blank ZRCC:TYPE=CCS,NCGR=,CGR=:DIR=,NE

50、T=,SPC=,LSI=;Note that the circuit group name must have the same name as the one created for MSC. In addition the circuit group SPC must be the same peer entity (e.g. MSC/MSS) with which the BSC is carrying 3GPP 48.008 BSSAP signalling.ParameterExplanationdirectionTo activate Reversed Hunting: OUT.I

51、f you do not want to activate Reversed Hunting: IN.line signalling DUMMY, AINA0, AINA1, AIIN0, AIIN1, DSS01.Add circuits to the circuit group (RCA).If more speech circuits are needed they must be added to the previously created circuit group.ETSI:In multiplexed cases: HYPERLINK :/127.0.0.1:43231/NED

52、/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlrca&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdrca l cmdrca t _blank ZRCA:NCGR=:ETPCM=,CRCT=,CRCTSTEP=1:CCSPCM=:;In non-multiplexed cases: HYPERLINK :/127.0.0.1:43231/NED/NED?act

53、ion=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlrca&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdrca l cmdrca t _blank ZRCA:CGR=1:ETPCM=,CRCT=:CCSPCM=:;Note that one to six (ETSI) or one to seven (ANSI) transcoder PCMs can be used towar

54、ds the MSC if the BSC is equipped with the GSWB. The amount of PCMs and TSLs depends on channel types: 8 Kbit/s (HR), 16 Kbit/s, 32 Kbit/s (HS2), 64 Kbit/s (HS4, through connected signalling channels). The same transcoder unit can have PCMs of different types, and the channels can be of a multimode

55、type.For more information, see the figures HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=dn60075666&edition=3&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=oct126175284 l oct126175284 Time slot allocation for ful

56、l-rate traffic on Ater 2Mbit/s interface with the TCSM2 (ETSI) and HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=dn60075666&edition=3&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=oct126175285 l oct126175285 A in

57、terface time slot allocation (ANSI).ANSI: HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlrca&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdrca l cmdrca t _blank ZRCA:NCGR=,ETPCM=,CRCT=,CIC=,CICDIR=

58、;Change the state of the speech circuits (CEC).Immediately after creation the circuits are in NU-US state. The state must be changed to WO-EX before the circuits can be used. HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlcec&edition=0&language

59、=en&coverage=global&encoding=xhtml_1_0&component=data&item=data&pointer=cmdcec l cmdcec t _blank ZCEC:ETPCM=,CRCT=:; HYPERLINK :/127.0.0.1:43231/NED/NED?action=retrieve&library=bss_rel_bss14_v2x_2021_06_27&identifier=mmlcec&edition=0&language=en&coverage=global&encoding=xhtml_1_0&component=data&item

60、=data&pointer=cmdcec l cmdcec t _blank ZCEC:ETPCM=,CRCT=:WO;ParameterExplanationstateIf Reversed Hunting is not used: BL.二 GB口集成Creating and activating the Gb interface when frame relay is usedIf necessary, create an ET unit (WTU).Creating a new ET unit is only needed if there is no room for the Gb