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、H2
2. 2级话务汇接:B1、B2；一级信令汇接：L1、L2
3. 端局：MSC、HLR、GW、MTM、SMSC

MSISDN 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 = 46000H1H2H3SXXXXX
2. 第4位不为0的号码：
MSISDN = 8613SH0H1H2H3ABCD IMSI = 46000H1H2H3(S-5）H0XXXXX
MGT 与 MSISDN 的对应关系
MSISDN= CC + NDC + SN
IMSI = MCC + MNC + MSIN
MGT = 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 DATA
SP SPID SPSTATE BROADCASTSTATUS SCCPSTATE
2-19-255-13 GZL1 ALLOWED CON ALLOWED
SSN SUBSYSTEMSTATE SST GTSUP
NONE
END
<C7NCP:SP=2-19-255-24,SSN=ALL;
CCITT7 SCCP NETWORK CONFIGURATION DATA
SP SPID SPSTATE BROADCASTSTATUS SCCPSTATE
2-19-255-24 GZAGHLR ALLOWED CON ALLOWED
SSN SUBSYSTEMSTATE SST GTSUP
6 ALLOWED YES NO
END
<C7NCP:SP=2-19-255-26,SSN=ALL;
CCITT7 SCCP NETWORK CONFIGURATION DATA
SP SPID SPSTATE BROADCASTSTATUS SCCPSTATE
2-19-255-26 GZBGSM ALLOWED CON ALLOWED
SSN SUBSYSTEMSTATE SST GTSUP
7 ALLOWED YES NO
8 ALLOWED YES NO
END
<MGCAP;
MT OWN CALLING ADDRESS DATA
INT NAT
8613900221 13900221
END
LOCATION UPDATE
LOCATION UPADATE 分为4种：
Normal
IMSI detach
IMSI attach
Periodic registration

MGT 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 DATA
OPERATING TABLE
IMSIS M NA ANRES
4600022042 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
END
<MGISP:IMSIS=4600000111;
MT IMSI NUMBER SERIES ANALYSIS DATA
OPERATING TABLE
IMSIS M NA ANRES
4600000111 5-86139 4 OBA-61 〈=智能卡B表入口为60！
BO-72
OWNMS
NATMS
MAPVER-1
CBA-63
END
2. 对MGT做GT分析取得发送的SP，注意LOCATION UPDATE 用的GT是NP=7，即E.214
<C7GSP:TT=0,NP=7,NA=4,NS=8613922042;
CCITT7 GLOBAL TITLE SERIES TRANSLATION DATA
OPERATING
TT NP NA NS TERM LSSN GTRC
0 7 4 8613922042 NO 54
END
<C7GCP:GTRC=54;
CCITT7 GLOBAL TITLE ROUTING CASE DATA
GTRC RSTATE PSP TERM PSSN SSP TERM SSSN
54 PRIMARY 2-19-255-208 YES
END
3. 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 DATA
OPERATING
TT NP NA NS TERM LSSN GTRC
0 7 4 8613922042 YES
END
<
CALL FROM MS
1. 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 DATA
OPERATING TABLE
IMSIS M NA ANRES
4600022042 5-86139 4 OBA-31
BO-72
OWNMS
NATMS
MAPVER-1
CBA-63

END

1. 通过B表预分析
<PNBSP:BO=31;
PRE-ANALYSIS OF B-NUMBER INFORMATION
OPERATING AREA
BO NAPI BNT RESULT
31 1 OBA=40
31 2 OBA=31
31 3 OBA=31
31 4 OBA=31
END
3. B表分析，得RC及D值
<ANBSP:B=31-8666;
B-NUMBER ANALYSIS DATA
OPERATING AREA
B-NUMBER MISCELL F/N ROUTE CHARGE L A
31-8
D=4-0
TRD=5
BNT=4
31-86 L=8
BNT=4
31-866 RC=19 CC=1
END
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 DATA
D TDCL
4-0 1
END
5. RC表分析得路由
6. 路由表分析得SP和电路
<EXROP:R=MTM1O;
ROUTE DATA
R ROUTE PARAMETERS
MTM1O 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
END
7. 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的用户13922200392为例，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 DATA
OPERATING AREA
B-NUMBER MISCELL F/N ROUTE CHARGE L A
31-1
31-13
31-139
31-1392 F=54
END
进入路由查询分析源
<ANBSP:B=54-1392220;
B-NUMBER ANALYSIS DATA
OPERATING AREA
B-NUMBER MISCELL F/N ROUTE CHARGE L A
54-1
54-13
D=10-0
54-139 L=11
54-1392
54-13922
54-139222 RC=34 CC=1 L=11
M=0-86
NW
BNT=1
END
2. RC分析表得软件路由GRI
ANRSP:RC=34;
ROUTING CASE DATA
OPERATING AREA
RC CCH BR ROUTING SP DATA
34 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 FCP
END
3. RC得到GRI查询路由，向HLR发Send Routing Information 信令
<EXROP:R=GRI3;
ROUTE DATA
R ROUTE PARAMETERS
GRI3 DETY=GRI RSV=175 MIS1=72 MIS3=15 BO=58
END
RSV是重要的参数，
BIT0 SPN
BIT1 ICI
BIT2 OIN
BIT3 DMSISDN
BIT5&BIT4 00-MAP VERSION UNDEFINE ,01-MAP 1,10-MAP 2,11-MAP 3
BIT7 MAP 2 Extension Field

BO 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 DATA
OPERATING
TT NP NA NS TERM LSSN GTRC
0 1 4 86139222 NO 54
END
<C7GCP:GTRC=54;
CCITT7 GLOBAL TITLE ROUTING CASE DATA
GTRC RSTATE PSP TERM PSSN SSP TERM SSSN
54 PRIMARY 2-19-255-208 YES
END
5. 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 DATA
SUBSCRIBER IDENTITY
MSISDN IMSI STATE AUTHD
8613922200392 460002204200257 CONNECTED AVAILABLE
LOCATION DATA
VLR ADDRESS MSRN MSC NUMBER LMSID
4-8613900228 8613900228
END

6. 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 DATA
MSRNS 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 HONPERM
END
7. 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 DATA
OPERATING AREA
B-NUMBER MISCELL F/N ROUTE CHARGE L A
58-8
58-86 F=58
M=2
TRD=2102
END
<ANBSP:B=58-13900228;
B-NUMBER ANALYSIS DATA
OPERATING AREA
B-NUMBER MISCELL F/N ROUTE CHARGE L A
58-1
58-13
58-139
58-1390
58-13900
58-139002
58-1390022
58-13900228 RC=79 CC=1 L=11
D=5-0
TRD=3228
BNT=4
END
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 DATA
D TDCL
5-0 1
END
9. 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 DATA
R ROUTE PARAMETERS
GZAGMI 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，呼叫13922200392
<ANBSP:B=55-002281;
B-NUMBER ANALYSIS DATA
OPERATING AREA
B-NUMBER MISCELL F/N ROUTE CHARGE L A
55-0
55-00
55-002
55-0022
55-00228
55-002281 MTE CC=1 L=8
NDC=139
D=1-0
BNT=1
END
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 UNCONDITIONAL
CALL 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 DATA
SUBSCRIBER IDENTITY
MSISDN IMSI STATE AUTHD
8613922200820 460002204200431 CONNECTED AVAILABLE
PERMANENT SUBSCRIBER DATA
SUD
CAT-11 DBSG-1 CAPL-1 OBR-2
TS11-1 TS21-1 TS22-1 TS62-1
OFA-1 PWD-0000 CFU-1 CFB-1
CFNRY-1 CFNRC-1 BAOC-1 BOIC-1
BAIC-1 CAW-1 SOCFB-0 SOCFRY-0
SOCFRC-0 SOCFU-0 SOCB-0 SOCLIP-1
HOLD-1 MPTY-1 CLIP-1
SUPPLEMENTARY SERVICE DATA
BSG
TS10
SS STATUS FNUM TIME
SADD
BAIC NOT ACTIVE
BAOC NOT ACTIVE
BOIC NOT ACTIVE
CAW NOT ACTIVE
CFU ACTIVE-OP 8613800200200
CFB NOT ACTIVE
CFNRY NOT ACTIVE
CFNRC NOT ACTIVE
END
2. 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=1-13800200200;
HLR FORWARDED-TO NUMBER ANALYSIS DATA
OPERATING
FORWARDED-TO NUMBER M F/N RESTRICTION
1-1
1-13
1-138
1-1380
1-13800 0-86
END
3. 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 DATA
R ROUTE PARAMETERS
GRI3 DETY=GRI RSV=175 MIS1=72 MIS3=15 BO=58
END
<ANBSP:B=72-8613800;
B-NUMBER ANALYSIS DATA
OPERATING AREA
B-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 DATA
SUBSCRIBER IDENTITY
MSISDN IMSI STATE AUTHD
8613922200820 460002204200431 CONNECTED AVAILABLE
SUPPLEMENTARY SERVICE DATA
BSG
TS10
SS STATUS FNUM TIME
SADD
BAIC NOT ACTIVE
BAOC NOT ACTIVE
BOIC NOT ACTIVE
CAW NOT ACTIVE
CFU NOT ACTIVE
CFB NOT ACTIVE
CFNRY NOT ACTIVE
CFNRC ACTIVE-OP 8613800200200
END

2. MS在不同条件下呼转的C-NUMBER都已储存在MS登记的VLR里
<MGSLP:IMSI=460002204200431,ALL;
MT MOBILE SUBSCRIBER LIST
SUBSCRIBER IDENTITY
IMSI MSTAT MSISDN CAT
460002204200431 REG 8613922200820 11
SUBSCRIBER NON SUPPLEMENTARY SERVICE DATA
BASIC SERVICE DATA
SPCH SMS AFX3
SUBSCRIBER SUPPLEMENTARY SERVICE DATA
SS BSG STAT KEY FNUM FOPT TIME
SADD
CLIP-O FX PAO
SPCH PAO
HOLD SPCH PAO
MPTY SPCH PAO
CFU FX P
SPCH P
CFB FX P 0
SPCH P 0
CFNRY FX P 0
SPCH P 0
CFNRC FX P 0
SPCH PRAO 8613800200200 0
CW FX P
SPCH P
BAOC ALL P
BOIC ALL P
END
3. 当呼转条件成立，MS所在的MSC把对应的C-NUMBER送B表分析，入口源由MSC的IMSI表定义
<MGISP:IMSIS=4600022042;
MT IMSI NUMBER SERIES ANALYSIS DATA
OPERATING TABLE
IMSIS M NA ANRES
4600022042 5-86139 4 OBA-31
BO-72
OWNMS
NATMS
MAPVER-1
CBA-63

END
<ANBSP:B=72-8613800200200;