交换局数据基础知识.doc

交换局数据交换网络概况三级结构:1. 一级话务汇接:A1、A2；一级信令汇接：H1、H22. 2级话务汇接:B1、B2；一级信令汇接：L1、L23. 端局：MSC、HLR、GW、MTM、SMSCMSISDN 与 IMSI 的对应关系（注意广东已部分使用特殊的对应关系）1. 第4位为0的号码：MSISDN = 8613S0H1H2H3ABCD IMSI = 46000H1H2H3SXXXXX2. 第4位不为0的号码：MSISDN = 8613SH0H1H2H3ABCD IMSI = 46000H1H2H3(S-5）H0XXXXXMGT 与 MSISDN 的对应关系MSISDN= CC + NDC + SNIMSI = MCC + MNC + MSINMGT = CC + NDC + MSIN 7号信令OSI 与CCS7 为什么要使用SCCP？传送非语音关联的信令。为什么要使用GT寻址？提供 ，GSM使用两种GT：E.164，E.214,翻译计划（TT）均为0，号码性质均为4。* Connected to GZAMSC *C7NCP:SP=2-19-255-13,SSN=ALL;CCITT7 SCCP NETWORK CONFIGURATION DATASP SPID SPSTATE BROADCASTSTATUS SCCPSTATE2-19-255-13 GZL1 ALLOWED CON ALLOWED SSN SUBSYSTEMSTATE SST GTSUP NONEENDC7NCP:SP=2-19-255-24,SSN=ALL;CCITT7 SCCP NETWORK CONFIGURATION DATASP SPID SPSTATE BROADCASTSTATUS SCCPSTATE2-19-255-24 GZAGHLR ALLOWED CON ALLOWED SSN SUBSYSTEMSTATE SST GTSUP 6 ALLOWED YES NOENDC7NCP:SP=2-19-255-26,SSN=ALL;CCITT7 SCCP NETWORK CONFIGURATION DATASP SPID SPSTATE BROADCASTSTATUS SCCPSTATE2-19-255-26 GZBGSM ALLOWED CON ALLOWED SSN SUBSYSTEMSTATE SST GTSUP 7 ALLOWED YES NO 8 ALLOWED YES NOENDMGCAP;MT OWN CALLING ADDRESS DATAINT NAT8613900221 13900221ENDLOCATION UPDATELOCATION UPADATE 分为4种：Normal IMSI detachIMSI attachPeriodic registrationMGT 仅用于LOCATION UPADATE(normal)LOCATION UPDATE 须做IMSI表、GT表1. MSC中一般SIM卡和智能卡的IMSI表数据* Connected to GZAMSC *MGISP:IMSIS=4600022042;MT IMSI NUMBER SERIES ANALYSIS DATAOPERATING TABLEIMSIS M NA ANRES4600022042 5-86139 4 OBA-31=B表入口源 去掉前5位，加入86139 BO-72=呼叫转移B表入口源 则IMSI-MGT OWNMS= NATMS MAPVER-1=MAP VERSION CBA-63=用于呼叫限制ENDMGISP:IMSIS=4600000111;MT IMSI NUMBER SERIES ANALYSIS DATAOPERATING TABLEIMSIS M NA ANRES4600000111 5-86139 4 OBA-61=智能卡B表入口为60！ BO-72 OWNMS NATMS MAPVER-1 CBA-63END2. 对MGT做GT分析取得发送的SP，注意LOCATION UPDATE 用的GT是NP=7，即E.214C7GSP:TT=0,NP=7,NA=4,NS=8613922042;CCITT7 GLOBAL TITLE SERIES TRANSLATION DATAOPERATINGTT NP NA NS TERM LSSN GTRC0 7 4 8613922042 NO 54ENDC7GCP:GTRC=54;CCITT7 GLOBAL TITLE ROUTING CASE DATAGTRC RSTATE PSP TERM PSSN SSP TERM SSSN54 PRIMARY 2-19-255-208 YESEND3. HLR须对自己用户的GT落地* Connected to GZHLR5 *C7GSP:TT=0,NP=7,NA=4,NS=8613922042;CCITT7 GLOBAL TITLE SERIES TRANSLATION DATAOPERATINGTT NP NA NS TERM LSSN GTRC0 7 4 8613922042 YESENDCALL FROM MS1. MS通过DTAP协议向MSC发SETUP消息，其中包含B-number,BNT(B-number Type),BC(Bear Capability)和NP（Numbering Plan）等。MSC若不支持该业务，中断该呼叫。2. MSC根据IMSI表找到B表入口源MGISP:IMSIS=4600022042;MT IMSI NUMBER SERIES ANALYSIS DATAOPERATING TABLEIMSIS M NA ANRES4600022042 5-86139 4 OBA-31 BO-72 OWNMS NATMS MAPVER-1 CBA-63 END1. 通过B表预分析PNBSP:BO=31;PRE-ANALYSIS OF B-NUMBER INFORMATIONOPERATING AREABO NAPI BNT RESULT31 1 OBA=4031 2 OBA=3131 3 OBA=3131 4 OBA=31END3. B表分析，得RC及D值ANBSP:B=31-8666;B-NUMBER ANALYSIS DATAOPERATING AREAB-NUMBER MISCELL F/N ROUTE CHARGE L A31-8 D=4-0 TRD=5 BNT=431-86 L=8 BNT=431-866 RC=19 CC=1END 4. IMSI表的CBA值与D表的TDCL值比较，如有相同则中断呼叫。注意每一次B表分析结束都会产生D值，都需要与CBA值比较，一切的call baring都是通过D表完成。ANDSP:D=4-0;ACCESS BARRING DATAD TDCL4-0 1END5. RC表分析得路由6. 路由表分析得SP和电路EXROP:R=MTM1O;ROUTE DATAR ROUTE PARAMETERSMTM1O DETY=C7BTC4 TTRANS=3 FNC=3 R=MTM1I MIS1=0 MIS2=0 MIS3=0 ST=0 MIS4=0 MIS5=0 CCH=0 DPCN=19-255-251 END7. 当出现B表没有对应号码或对方忙的情况，则产生一个EOS值，在E表中可找到对应的通知音。CALL TO MS以登记在MSC A的用户13922200XXX拨打登记在MSC C的用例，前3项与CALL FROM MS 一致1. 本地用户呼叫发起源ANBSP:B=31-1392220;B-NUMBER ANALYSIS DATAOPERATING AREAB-NUMBER MISCELL F/N ROUTE CHARGE L A31-131-13 31-139 31-1392 F=54END 进入路由查询分析源 ANBSP:B=54-1392220;B-NUMBER ANALYSIS DATAOPERATING AREAB-NUMBER MISCELL F/N ROUTE CHARGE L A54-154-13 D=10-054-139 L=1154-1392 54-13922 54-139222 RC=34 CC=1 L=11 M=0-86 NW BNT=1END 2. RC分析表得软件路由GRI ANRSP:RC=34;ROUTING CASE DATAOPERATING AREARC CCH BR ROUTING SP DATA34 NO P01=1 R=GRI3 MM1 COT EST SI ESS ESR 0 0 0 0 BNT RN SPR OLI OLI2 1 00 0 ISC FCP D 0 FCPEND3. RC得到GRI查询路由，向HLR发Send Routing Information 信令EXROP:R=GRI3;ROUTE DATAR ROUTE PARAMETERSGRI3 DETY=GRI RSV=175 MIS1=72 MIS3=15 BO=58 END RSV是重要的参数，BIT0SPNBIT1ICIBIT2OINBIT3DMSISDNBIT5&BIT4 00-MAP VERSION UNDEFINE,01-MAP 1,10-MAP 2,11-MAP 3BIT7MAP 2 Extension FieldBO 为路由查询结果MSRN在B表分析的入口源MIS1 为路由查询结果为呼转时C-number在B表分析的入口源4. GT分析C7GSP:TT=0,NP=1,NA=4,NS=86139222;CCITT7 GLOBAL TITLE SERIES TRANSLATION DATAOPERATINGTT NP NA NS TERM LSSN GTRC0 1 4 86139222 NO 54ENDC7GCP:GTRC=54;CCITT7 GLOBAL TITLE ROUTING CASE DATAGTRC RSTATE PSP TERM PSSN SSP TERM SSSN54 PRIMARY 2-19-255-208 YESEND5. 用户所在的HLR通过LOCATION DATA得到MS所在VLR地址，向VLR发Provide Roaming Number信令* Connected to GZHLR5 *HGSDP:MSISDN=8613922200392,LOC;HLR SUBSCRIBER DATASUBSCRIBER IDENTITYMSISDN IMSI STATE AUTHD8613922200392 460002204200257 CONNECTED AVAILABLELOCATION DATAVLR ADDRESS MSRN MSC NUMBER LMSID4-8613900228 8613900228 END6. VLR选取一个空闲的MSRN（本例设为8613900228101），并把用户的IMSI与该MSRN绑定，向HLR回送MSRN* Connected to GZHMSC * MGRSP:MSRNS=ALL;MT ROAMING AND HANDOVER NUMBER SERIES DATAMSRNS L R USAGE 86139002281 2 MRNR11 RNPERM 86139002282 2 MRNR12 RNPERM 86139002283 2 MRNR13 RNPERM 86139002284 2 MRNR14 RNPERM 86139002285 2 MRNR15 RNPERM 86139002286 2 MRNR16 RNPERM 86139002287 2 MRNR17 RNPERM 86139002288 2 MRNR18 RNPERM 86139002289 2 HOVER1 HONPERMEND7. MSC从HLR得到MSRN，送MSRN 和HON的分析源58，注意58源是由GRI路由定义的* Connected to GZAMSC *ANBSP:B=58-86139002;B-NUMBER ANALYSIS DATAOPERATING AREAB-NUMBER MISCELL F/N ROUTE CHARGE L A58-858-86 F=58 M=2 TRD=2102END ANBSP:B=58-13900228;B-NUMBER ANALYSIS DATAOPERATING AREAB-NUMBER MISCELL F/N ROUTE CHARGE L A58-158-13 58-139 58-1390 58-13900 58-139002 58-1390022 58-13900228 RC=79 CC=1 L=11 D=5-0 TRD=3228 BNT=4END 8. 分析得到D=5-0，而CBA=63与D=5-0的所有TDCL值都不相等，呼叫继续ANDSP:D=5-0;ACCESS BARRING DATAD TDCL5-0 1END9. 分析得到RC=79，正是被叫MS所在GZHMSC的话音路由。GZAMSC 向GZHMSC发起以MSRN（8613900228101）为被叫地址的呼叫。GZHMSC收到GZAMSC的呼叫，从入路由定义得到话务入口分析源81* Connected to GZHMSC *EXROP:R=GZAGMI;ROUTE DATAR ROUTE PARAMETERSGZAGMI DETY=C7BTC4 PRI=10 EO=2 FNC=3 R=GZAGMO MIS1=2 MIS2=0 MIS3=0 BO=81 RO=40 CO=NO TO=0 TDCL=0 MIS4=0 MIS5=0 MIS6=0 NAI=4 CPI=0 PI=0 DPCN=19-255-25 END 10. 经过81、80、58、55源的分析，最后以MTE参数落地，GZHMSC得到MSRN对应的IMSI，并向LAI内的CELL发出广播，呼NBSP:B=55-002281;B-NUMBER ANALYSIS DATAOPERATING AREAB-NUMBER MISCELL F/N ROUTE CHARGE L A55-055-00 55-002 55-0022 55-00228 55-002281 MTE CC=1 L=8 NDC=139 D=1-0 BNT=1END 当主叫与被叫在同一MSC，则略去话音路由的过程，直接在B表得到MTE参数落地。CALL FORWARD UNCONDITIONALCALL FORWARD UNCONDITIONAL 是CALL TO MS 的一种特例，只是在MSC向HLR查询路由时，HLR由于被叫用户无条件呼转，就不再向被叫用户登记的VLR索取MSRN，而直接向MSC返回C-NUMBER.1. 用户激活了无条件呼转，其中OFA-1为呼转分析入口源* Connected to GZHLR5 *HGSDP:MSISDN=8613922200820,ALL;HLR SUBSCRIBER DATASUBSCRIBER IDENTITYMSISDN IMSI STATE AUTHD8613922200820 460002204200431 CONNECTED AVAILABLEPERMANENT SUBSCRIBER DATASUDCAT-11 DBSG-1 CAPL-1 OBR-2TS11-1 TS21-1 TS22-1 TS62-1OFA-1 PWD-0000 CFU-1 CFB-1CFNRY-1 CFNRC-1 BAOC-1 BOIC-1BAIC-1 CAW-1 SOCFB-0 SOCFRY-0SOCFRC-0 SOCFU-0 SOCB-0 SOCLIP-1HOLD-1 MPTY-1 CLIP-1SUPPLEMENTARY SERVICE DATABSGTS10SS STATUS FNUM TIME SADDBAIC NOT ACTIVEBAOC NOT ACTIVEBOIC NOT ACTIVECAW NOT ACTIVECFU ACTIVE-OP 8613800200200 CFB NOT ACTIVECFNRY NOT ACTIVECFNRC NOT ACTIVEEND2. 呼转表的号码最终应为国际号码形式，而参数REST表示拦截HGFSP:FW=1HLR FORWARDED-TO NUMBER ANALYSIS DATAOPERATINGFORWARDED-TO NUMBER M F/N RESTRICTION1-1 1-13 1-138 1-1380 1-13800 0-86END3. 发起呼叫的MSC根据GRI路由的定义，进入B表相应的源对C-NUMBER分析。* Connected to GZAMSC *EXROP:R=GRI3;ROUTE DATAR ROUTE PARAMETERSGRI3 DETY=GRI RSV=175 MIS1=72 MIS3=15 BO=58 END ANBSP:B=72-8613800;B-NUMBER ANALYSIS DATAOPERATING AREAB-NUMBER MISCELL F/N ROUTE CHARGE L A。最后得到GZTR1/GZTR2的路由向GZVMS发起呼叫CONDITIONAL CALL FORWARD CONDITIONAL CALL FORWARD 也是CALL TO MS 的一种特例，只是在MSC话音路由接通被叫MS所在的MSC后，由于用户无应答或用户忙或不在服务区，而从被叫MS所在的MSC 转呼C-NUMBER.1. 用户激活了条件呼转，其中FNUM经过呼转分析后的C-NUMBER* Connected to GZHLR5 *HGSDP:MSISDN=8613922200820,ALL;HLR SUBSCRIBER DATASUBSCRIBER IDENTITYMSISDN IMSI STATE AUTHD8613922200820 460002204200431 CONNECTED AVAILABLESUPPLEMENTARY SERVICE DATABSGTS10SS STATUS FNUM TIME SADDB