1 Huawei Core MSC HLR MGW Training - Sample Training

Interworkin Interw orking g with with BSC/MSC/PSTN/MG W Data Con Configura figuration tion www.huawei.com

Copyright Copyrigh t © 2006 Hu awei Techn Techn ologies ologies Co., Ltd. Al l rights reserved.

Objectives 

Upon completion completion of this course, you will be able to: 

Know the networking modes between UMG8900 and BSC/MSC/PSTN



Perform the data configuration BSC/MSC/PSTN/MGW

interworking with

Networking Modes 

In GSM/UMTS GSM/ UMTS network, there are four f our interworking modes used to exchange common signaling messages between BSC/MSC/PSTN BSC/M SC/PSTN and MSC Server. Mode 1: Independen Indepe ndentt SG mode; mod e;

MSC Server 

Independent SG

Mode 2: Direct connection conn ection between MSC Server Se rver and other exchanges;

SS7 Signaling network

Mode 3: UMG8900 UMG890 0 embedded SG mode base on M3UA or M2UA; M 2UA; Mode 4: SPC between b etween MSC Server

Embedded SG

and other exchanges exch anges through

UMG8900

Semi-permanent Connection

MSC

UMG8900.

Embedded SG（MTP3-M3UA） Networking Mode MSOFTX3000

UMG8900

IP bearer

TDM bearer

PSTN1

TDM bearer

PSTN2

SG（MTP3-M3UA）Protocol Stack BSC/MSC/ PSTN Switch

SS7

IP

UMG8900

S7UP

S7UP

MTP3

M3UA

M3UA-NIF MTP3

MTP2 MTP2 MTP1

MGC

TDM

SCTP IP

MTP1

SCTP

M3UA

MAC

IP IP

MAC

M3UA: MTP3 us er adaptation layer

MTP: Message Mess age Transfer Part

S7UP: No.7 Signaling User Part

SCTP: Stream Control Con trol Transpo Transport rt Protocol

NIF: Node Interworking Function

MGC: Media Gateway Control

MAC: Media Access Control

Embedded SG（MTP2-M2UA） Networking Mode MSOFTX3000

UMG8900

IP bearer

TDM bearer

BSC-1

TDM bearer

BSC-2

SG（MTP2-M2UA）Protocol Stack BSC/MSC/ PSTN Switch

SS7

IP

UMG8900

S7UP

S7UP

MTP3

MTP3

M2UA-NIF MTP2

MTP2 MTP1

MGC

TDM

M2UA

M2UA

SCTP

SCTP

IP MTP1

MAC

IP

IP MAC

M2UA: MTP2 u ser adaptation layer

MTP: Message Mes sage Transfer Part

S7UP: SS7 User Part

SCTP: Stream Control Con trol Transpo Transport rt Protocol

NIF: Node Interworking Functio Func tion n

MGC: Media Gateway Control Control

MAC: Media Acces Acc ess s Control

SPC Networking Mode

BSC-1

UMG8900

MSOFTX3000 IP bearer

TDM bearer BSC-2

TDM bearer

EPI

E32 TDM bearer

TDM bearer

SPC Protocol Stack BSC/MSC/ PSTN Switch

SS7

UMG8900

SS7

S7UP

S7UP MTP3

MTP3

M2UA-NIF

MTP2

MTP2 TDM

MTP1

MGC

TDM

MTP1

Contents 1. Overview 2. Data Data Conf Config igur ura ation tion 3. Mai Mainte ntenanc nance e Com Comma mand nds s 4. Exercises

Contents 2

Data Configuration 2.1 Config C onfigur uring ing Connection with BSC/MSC/PSTN 2.2 Configuring M3UA SG 2.3 Configuring M2UA SG 2.4 Configuring SPC 2.5 Configuring Conf iguring Connection with MGW

Preparation 

In the networks, the UMG8900 communicates with BSC, MSC (VMSC, TMSC or GMSC) and PSTN switches (including voice and narrowband data) based on TDM mode. No.

Items

Remarks

1

Information about the E1/T1 interface interf ace to the E1/T1 interface interconnected interconnected device, including access mode, frame data structure, line code format and so on.

2

SDH/SONET interface data

Information about the SDH/SONET SDH /SONET interface to the interconnected interconnected device, such as overhead bytes.

3

TDM time time slots allocation

Time slots s lots allocation allocation of the TDM interface boards E32/T32/S2L/S1L for the convenience conv enience of TDM time time slots slo ts management and maintenance and system s ystem upgrade.

Procedures for Configurin Configuring g Interconnection with BSC/MSC/PSTN Start E1/T1 port

TDM port type

SDH/SONET port

Configure SDH/SONET port (optional)

Configure E1/T1 port (optional)

Configure SDH/SONET port protection (optional)

Configure TDM timeslots

End

Steps for Configuring In Interconnection terconnection with BSC/MSC/PSTN Steps

Commands

Step 1:Configuring 1:Conf iguring E1 port (optional)

SET E1PORT

1)Set E1/T1 port attribute att ribute

Step 2:Configuring TDM timeslots 1)Add TDM timeslots

 ADD TDMIU TDMIU

Configuring Connection with BSC/MSC/PSTN 

Set E1/T1 Port Attributes 

Command: Comm and: SET E1PORT You can choose to s et attributes of all ports on a board or only



one port on a boa rd. To set attributes of one port, s et Start Port No. and End Port No. to the same value. When we configure con figure the frame structure, keeps consistent consis tent with



the frame structure of the device interconnected.

Configuring Connection with BSC/MSC/PSTN 

Configuring TDM Time Slots (1) 

Command: ADD ADD TDMIU This command command is used to designate which which VMGW the TID belongs



to as the UMG8900 supports VMGW functions func tions and can allocate TDM resources of one physical physic al device to multiple VMGWs. It could also designate the CMU that manages the TID.  An E32/T32 E32/T 32 has 1024 1 024 physic phy sical al time slots at most. Therefo T herefore, re, the th e



end TID minus the start TID must must be less than 1024. The start TID of a TDM interface board (E32/T32/S2L) must be an



integral multiple of 1024.

Configuring Connection with BSC/MSC/PSTN 

Configuring TDM Time Slots (2) 

Command: ADD TDMIU The start TID of a TDM interface inte rface board (E32/T32/S2L) must be an



integral multiple of 1024.  All time slots slo ts of one TDM interface interf ace board boa rd (E32/T32/S2L) (E32/T32 /S2L) must mus t be of



the same load type.  All time slots slo ts of one trunk tru nk (namely, (namely , one E1/T1 port) must mus t be of the



same relay type.

Contents 2

Data Configuration 2.1 Configuring Connection with BSC/MSC/PSTN 2.2 Configuring Co nfiguring M3UA SG 2.3 Configuring M2UA SG 2.4 Configuring SPC 2.5 Configuring Conf iguring Connection with MGW

Related Concepts about M3UA 

M3UA Local Entity 



M3UA Destination Entity 



The group of all M3UA link between SGP SGP and ASP

M3UA Link 



An M3UA destination entity defines a destination signaling point. A path from the local loc al node to the destination node can be established establ ished through the configuration of the destination entity.

M3UA Link set 



 An entity ent ity refers to a logical log ical unit that th at completes complete s the th e specific speci fic function functio n (AS,SP,SG), (AS,SP,SG), an M3UA local loc al entity defines a loc al signaling point.

M3UA link is the SCTP SCTP association associati on between SGP and ASP

M3UA Route 

The path from local loc al entity to destination entity is called c alled route

Preparation NO

Items

Remarks

1

SPC of destination entity

Used for interfacing interfac ing the UMG8900 and MSC Server.

2

IP address of destination entity

Used for interfacing interfac ing the UMG8900 and MSC Server.

3

Local and remote SCTP port No. of each M3UA link

Used for interfacing interfac ing the UMG8900 and MSC Server. They shall be planned uniformly. uniformly.

4

Route context (optional)

Used for interfacing interfac ing the UMG8900 and MSC Server.

5

Local office signaling point code

Used for interfacing interfac ing the UMG8900 and BSC/MSC/PSTN switch.

6

Peer office signali ng point code

Used for interfacing interfac ing the UMG8900 and BSC/MSC/PSTN switch.

7

Signaling Signaling link code c ode and signaling link link code send

Used for interfacing interfac ing the UMG8900 and BSC/MSC/PSTN switch.

8

TDM timeslots used by MTP2 link

Used for interfacing interfac ing the UMG8900 and BSC/MSC/PSTN switch.

on gura on mode Configuration of i nterconnect nterconnection ion with BSC/MSC/ PSTN switch

roce ure o Start

Confi guration guration of interconnection interconnection with MSC Server

Confi gure IP port

Configure Con figure TDM timeslot

Confi gure M3UA local local en tity tity Configure MTP2 MTP2 lin k Configure M3UA destination destination entity

Configure MTP3 OPC

Con figure M3UA traffic table (optional)

Confi gure MTP3 MTP3 DPC

Configure MTP3 MTP3 l ink set

Confi gure M3UA M3UA link set

Configure MTP3 route

Confi gure M3UA route route

Configure MTP3 MTP3 lin k

Confi gure M3UA M3UA link

End

Configuration Steps of M3UA Configuration M 3UA SG mode Steps Step 1: Configure MTP link 1)Configure local office information 2)Add MTP2 link 3)Add MTP destination point code 4)Add MTP link set 5)Add MTP route 6)Add MTP link

Step 2: Configure M3UA link link 1)Add M3UA local entity 2)Add M3UA destination entity 3)Add M3UA link set

Commands SET OFI  ADD MTP2LNK MTP2LNK  ADD N7DSP N7DSP  ADD N7LKS N7LKS  ADD N7RT  ADD N7LNK N7LNK  ADD IPADDR IPADDR  ADD M3LE  ADD M3DE  ADD M3LKS

4)Add M3UA route

 ADD M3RT

5)Add M3UA link

 ADD M3LNK

Relationship between Command Parameter BSC/MSC/ PSTN Switch

DPC NI LEN

UMG8900 SET/ADD OFI INDEX OPC NI LEN ADD N7DSP

NI OPC

INDEX NI DPC OSPINDEX ADD N7LKS DSPIDX INDEX ADD N7RT INDEX LKSIDX DSPIDX ADD N7LNK

SLC

INDEX LKSIDX SLC MTP2NO ADD MTP2LNK LNKNO

MSC Server  ADD M3UALE LET OPC NI LEX RC ADD M3UADE LEX DEX NI DPC RC DET

RC

NI OPC RC

ADD M3UALKS  ADX LSX TM ADD M3UART DEX LSX ADD M3UALNK LSX LIP1/LIP2 LP RIP1/RIP2 RP BN ADD IPADDR BT=SPF BN IPADDR

RIP1/RIP2 RP LIP1/LIP2 LP

Configuring Configurin g MTP Link 

Configure Local Office Information 

Command: SET OFI/ADD OFI 

MSOFTX3000 support 16 local office information tables( numbered 0



15).

～

The local office data index added for the first time is "0". SET OFI is used for the first time to add local office data.



Currently, MSOFTX3000 supports multi-SP configuration at the local office, so we could use the command ADD OFI to add SPs to break the number limitation of 16 signaling links.

Configuring Configurin g M3UA Link 

 Add MTP2 Links: 

Command: ADD MTP2LNK. 

This command is to configure the link in MTP2 layer. The MTP2 link could transfer the M2UA signaling and bear the MTP3 signaling.



The MTP2 link can be applied to the M2UA or MTP3 layer, to configure an SG based on M2UA, select the MTP2 link type for M2UA; to configure an SG based on M3UA, select the MTP2 link type for MTP3.

Configuring Configurin g MTP Link 

 Add Destination Point : 

Command: ADD N7DSP. 

These MTP3 destination destinati on signaling points form the topology of the signaling network where the local office MTP3 signaling points are are located.



Network indicator and local office SPC have been defined when we add local office information.



STP flag is to configure c onfigure whether HLR have ha ve STP function, it is up to network and operator.



HLR is directly connected with MSC, they are adjacent network entity in SS7 signaling network, so this adjacent flag is True.

Configuring Configurin g MTP Link 

 Add MTP Link Set: 

Command: ADD N7LKS. 

 An MTP3 link link set set is a group group of signaling signaling links between between two adjacent signaling points



 Adjacent  Adjacent DSP index index is a index index of associated associated DPC to define define the destination of the link set. This index must be set in the former table.

Configuring Configurin g MTP Link 

 Add MTP Route: 

Command: ADD N7RT. 

 An MTP3 route route is the path throug through h which signaling signaling messages messages are transmitted between two signaling points.



This command defines routes used by a link set.



The link set and DPC must be added in the two former tables.

Configuring Configurin g MTP Link 

 Add MTP Link: 

Command: ADD N7LNK. 

Module number is the module module number of WCSU board (or SGU board).



Circuit number is the time slot sl ot number of E1 used by the link, usually use 16th time slot in E1 as the signaling sign aling link, need to consult with HLR configuration.



Link Set Index indicates that that which link set the link is belong to.



SLC is a appointed value, it is a interface parameter, parameter, need to c onsult with with HLR configuration.



Choose 64k link, if need to use one E1 time slot as the signaling link.

Configuring Configurin g M3UA Link 

 Add IP Address: 

Command: ADD IPADDR. 

This command is used to configure the IP address of a specified interface on a specified board. In this chapter it is used to configure the IP address of SPF board.



It could be used to configure master, slave, and test IP addresses.



To configure multiple addresses for an IP interface, configure the master IP address first before a slave IP address. otherwise, configuring a slave IP address will fail.

Configuring Configurin g M3UA Link 

 Add M3UA Local Entities: 

Command: ADD M3LE. 

 An M3UA M3UA local local entity correspon corresponds ds to an origin originating ating signaling signaling point point code (OPC) that is identified by network ID (NI) and OPC.



Local entity type specifies the application mode of the UMG8900 in the M3UA link. For the two peer devices, if the entity type is  Applicatio  Application n Server (AS) (AS) for one one device, device, the entity type is is SG for the the other.



Usually the entity type is set to SG for the UMG8900 and AS for MGC.

Configuring Configurin g M3UA Link 

 Add M3UA Destination Entities: Entities: 

Command: ADD M3DE. 

 An M3UA M3UA destination destination entity defines defines a destination destination signaling signaling point point and is identified by NI and DPC.



Network Mode is valid only when the destination entity type is AS. It specifies whether the peer AS engrosses or shares a signaling point code with others.

Configuring Configurin g M3UA Link 

 Add M3UA Link Sets: 

Command: ADD M3LKS. 

 A group group of M3UA M3UA links between between the local entity and and adjacen adjacentt destination entity constitute a M3UA link set.



 An M3UA M3UA link set describe describes s the static features features of all the M3UA M3UA links from the local entity to an M3UA adjacent destination entity.

Configuring Configurin g M3UA Link 

 Add M3UA Routes: 

Command: ADD M3RT. 

M3UA route is the path from the local entity to the destination entity is called.



There can be multiple routes to a M3UA destination entity, but the routes to the same M3UA destination entity must use different M3UA link sets.

Configuring Configurin g M3UA Link 

 Add M3UA Signaling Signaling Links: 

Command: ADD M3LNK. 

The link set up between the SGP and the ASP through SCTP is called M3UA link.



Each end of an M3UA link can be either the SGP or the ASP (IPSP is not applied in the UMG8900).



First IP address is a mandatory parameter, and if second address is also specified, this configuration shall support the dual homing function.

Contents 2

Data Configuration 2.1 Configuring Connection with BSC/MSC/PSTN 2.2 Configuring M3UA SG 2.3 Configuring Co nfiguring M2UA SG 2.4 Configuring SPC 2.5 Configuring Conf iguring Connection with MGW

Related Concepts about M2UA 

IID ( Interface ID ) 

IID can be showed in Integer-type Int eger-type or Text-t Text-type, ype, It uniquely identifies identifies this MTP link from others others borne borne by the M2UA link. link. IID I ID must be negotiated with SG and MGC (MSOFTX3000).

Preparation NO

Items

Remarks Used for interfacing interfac ing the UMG8900 and

1

IP address of MSC Server

MSC Server

2

Local and remote remote SCTP port No.

Used for interfacing interfac ing the UMG8900 and

of

MSC

each M2UA links

Server ,they need to be uniformly plan Used for interfacing interfac ing the UMG8900 and

3

Interface Identity

MSC Server ,they need to be uniformly plan

4

TDM timeslots used by MTP2 link

Used for interfacing interfac ing the UMG8900 and BSC/MSC/PSTN switch

Configuration Procedure Configuration Procedure of M2UA SG Mode Configurati Conf iguration on of interconnecti interco nnection on with MSC/ BSC/PSTN switch

Start

Configure TDM timeslots

Configurati Conf iguration on of interconnection with MSC Server

Configure Configure IP I P interface

Configure L2UA link set

Configure work mode of SPF sub-board (optional)

Configure MTP2 link

Configure L2UA link

End

Configuration Steps of M2UA Configuration M 2UA SG Mode Steps Step 1: Configure M2UA link link 1)Add M2UA link set 2)Add M2UA link

Commands  ADD IPADDR IPADDR  ADD L2UALKS L2UALKS  ADD L2UALNK L2UALNK

Step 2: Configure Configure MTP 1)Add MTP2 link

 ADD MTP2LNK MTP2LNK

Configuring Configurin g M2UA Link 

 Add L2UA Link Sets: 

Command: ADD L2UALKS. 

L2UA link sets refer to the collection of SCTP links between the UMG8900 and MSC Server.



In this command we could specify the L2UA link interface ID type borne by this L2UA link set, it could be integer-type interface ID or text-type interface ID.

Configuring Configurin g M2UA Link 

 Add L2UA Links: 

Command: ADD L2UALNK. 

L2UA signaling is processed in SPF boards.



The link works in Server/Client mode, if one end is set to server mode the other should be set to client mode.

Relationship between Command Parameters ADD L2UALKS LKS PROTYPE

ADD L2UALNK LKS PROTYPE LNKNO LOCALIP1 LOCALPN REMOTEIP1 REMOTERN

MSC Server  REMOTEIP REMOTEPN LOCALIP LOCALPN

ADD MTP2LNK LKS BINIFID TEXTIFID LNKTYPE STRTTS ENDTS

MSC Server  BINIFID TEXTIFID BSC/MSC/PSTN Switch LNKTYPE STRTTS ENDTS

Contents 2

Data Configuration 2.1 Configuring Connection with BSC/MSC/PSTN 2.2 Configuring M3UA SG 2.3 Configuring M2UA SG 2.4 Configuring Co nfiguring SPC 2.5 Configuring Conf iguring Connection with MGW

Data Configuration Step (MGW side) 

Between the UMG8900 and and MSC M SC Server common comm on channel signaling can be transferred through semi-permanent connections between TDM time slots. When a semi-perma semi -permanent nent connection is established between the TDM time slots s lots that bear the signaling, the two TDM time slots are always in the connected state. The SS7 signaling s ignaling is transparently transferred through this connection.

Steps

Commands

 Add semi-pe semi-permane rmanent nt connection connection

 ADD SPC

Configuring Semi-perm Configuring Semi-permanent anent Connection 

 Add Semi-permanent Semi-permanent Connection Connection : 

Command: ADD SPC. 

Between the UMG8900 and MSC Server common channel signaling can be transferred through semi-permanent connections between TDM time slots.



Once a semi-permanent connection is established, the two time slots are always connected.

Contents 2

Data Configuration 2.1 Configuring Connection with BSC/MSC/PSTN 2.2 Configuring M3UA SG 2.3 Configuring M2UA SG 2.4 Configuring SPC 2.5 Configuring Co nfiguring Connectio Conn ection n with wi th MGW

TDM Bearer 

The UMG8900 can serve as an MGW in the t he core network, where it can interwork with other MGWs over over IP, TDM or ATM bearers. The configuration of MGWs M GWs interconnection interconnection over TDM TDM bearers is the same with w ith configuring conf iguring connection with BSC/MSC/PST BSC/ MSC/PSTN. N.

IP Bearer －Configuration Procedure Start

Configure IP interfaces

Configure gateway address

Configure IP bearer capability

End Configuring IP I P bearer  bearer 

IP Bearer －Configurati Configuration on Steps Steps

Commands

Configure IP and gateway gatew ay 1)Add IP address of bearer 2)Add IP gateway

 ADD IP IPADDR  ADD GWADDR GWADDR

Configuring IP Gateway 

 Add IP Gateway Address: 

Command: ADD GWADDR 

The purpose of configuring gateway address is to forward IP packets carrying services to the desired gateway. As an IP packet is unaware of its destination when being configured, you are unable to configure forward information of the IP packet with the  ADD ROUTE ROUTE command command,, which which requires requires destination destination address. address.



 An IP interface interface can be configured configured with two gateway gateway addresse addresses s at most.

Configuring IP Bearer Capability 

 Add IP resources for VMGW: 

Command: ADD VMGWIP 

For the UMG8900 supports VMGW functions, we use this command to allocate the IP bearer capability for each VMGW. IP bearer capability is the number of the combinations IP address + “

UDP port . ”



The UDP ports of an IP address can be shared by multiple VMGWs or be exclusively occupied by one VMGW; on the other hand, one VMGW can occupy UDP port resources of multiple IP addresses.

Exercise 1－M3UA SG Mode M ode 

The UMG8900 UM G8900 transfers SS7 signaling between the PSTN switch swit ch and MSC Server in the t he MTP3-M3UA mode.

No.

Items

Examples

1

OPC

0x100,na 0x10 0,national tional network, 24bit length

2

DPC (of MSC Server)

0x200,na 0x20 0,national tional network, 24bit length

3

IP address and port No. of a local entity entity

10.0.0.1/24 10.0.0.1/24 , 7000

4

10.0.0.254/24

5

The IP address of the router interface interface connecting conn ecting with SPF directly IP address and port No. of a destinat des tination ion entity

6

Client/Server mode

UMG8900 as SERVER , MSC Server as CLIENT

7

DPC (of PSTN switch)

0x302, national national network, network, 24bit long

8

Information Informa tion about the SPF

Numbered Numbe red 0, the sub-board s ub-board 0 engaged en gaged in in MTP2 messages mes sages handling handling

9

Signaling link code, signaling link link code c ode send

0, consistent consistent with those of the PSTN switch

TDM time slots used by MTP2 links

The time slot 16 used, consistent with that that of the PSTN switch

10

192.168.0.1 192.16 8.0.1/24 /24 , 6000

Exercise 2－M2UA SG Mode M ode 

The UMG8900 is connected to the MSC through E32. The SPF 0 is responsible for SS7 signaling process. An M2UA link set is added for MSC Server and M2UA links are added to the link set. An MTP2 link is added for BSC. No.

Items

Examples Examp les

1

IP address and port No. of a local entity (SPF board)

10.0.0.2/24 , 7100

2

IP address and port No. of a destination destina tion entity

192.168.0.2 192.16 8.0.2/24 /24 , 6100

3

Client/Server mode

UMG8900 as SERVER , MSC Server as CLIENT

4

Information Informa tion about SPF

Numbered Numbe red 0, the sub-board su b-board 0 engaged en gaged in MTP2 messages mess ages handling

5

TDM timeslot used by MTP2 links

0, consistent consistent with with those of the PSTN switch

6

IID

1073

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