Huawei MSOFTX3000 Product Description
HUAWEI MSOFTX3000
Product Description Contents
Contents
1 Introduction.................................................................................................................................1-1
1.1 Product Orientation ..........................................................................................................................................1-2
1.1.1 Introduction to Huawei Mobile Softswitch Solution .............................................................................1-2
1.1.2 Features of Huawei Mobile Softswitch Solution ...................................................................................1-3
1.1.3 Introduction to the MSOFTX3000 .........................................................................................................1-6
1.2 Product Features ...............................................................................................................................................1-8
1.2.1 Dynamic Service Provision Capabilities................................................................................................1-8
1.2.2 Powerful and Flexible Networking Capabilities ....................................................................................1-9
1.2.3 Large Capacity and High Integration ...................................................................................................1-10
1.2.4 Powerful Processing Capabilities .........................................................................................................1-10
1.2.5 Highly Reliable .....................................................................................................................................1-11
1.2.6 Capabilities for Smooth Expansion ......................................................................................................1-11
1.2.7 Advanced Charging Capabilities ..........................................................................................................1-12
1.2.8 Excellent Performance Measurement Function ...................................................................................1-12
1.2.9 Convenient and Useful O&M Function ...............................................................................................1-13
1.2.10 Support for 2G/3G Integration............................................................................................................1-13
2 System Structure ........................................................................................................................2-1
2.1 Hardware Structure...........................................................................................................................................2-2
2.1.1 Appearance..............................................................................................................................................2-2
2.1.2 Physical Structure ...................................................................................................................................2-2
2.1.3 Logical Structure.....................................................................................................................................2-5
2.2 Software Structure ............................................................................................................................................2-8
2.2.1 Overview .................................................................................................................................................2-8
2.2.2 Host Software..........................................................................................................................................2-9
2.2.3 BAM Software ......................................................................................................................................2-10
2.3 Capacity Expansion........................................................................................................................................2-12
2.3.1 Cabinet Configuration...........................................................................................................................2-12
2.3.2 Expansion Configuration ......................................................................................................................2-14
3 Interfaces, Signaling, and Protocols .......................................................................................3-1
3.1 Physical Interfaces............................................................................................................................................3-2
3.1.1 Classification...........................................................................................................................................3-2
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3.1.2 Interface Specifications...........................................................................................................................3-3
3.2 Protocol Interface .............................................................................................................................................3-4
3.2.1 Standard Interface ...................................................................................................................................3-4
3.2.2 CDR Interface .........................................................................................................................................3-6
3.2.3 Interception Interface ..............................................................................................................................3-6
3.3 Signaling and Protocols....................................................................................................................................3-7
Product Description
4 O&M System...............................................................................................................................4-1
4.1 Overview of O&M ...........................................................................................................................................4-2
4.1.1 Basic Concept..........................................................................................................................................4-2
4.1.2 Terminal System......................................................................................................................................4-2
4.1.3 Network Management Networking ........................................................................................................4-4
4.1.4 Introduction to MML Command Line....................................................................................................4-4
4.2 O&M Function .................................................................................................................................................4-4
4.2.1 Configuration Management ....................................................................................................................4-4
4.2.2 Fault Management...................................................................................................................................4-5
4.2.3 Performance Measurement .....................................................................................................................4-7
4.2.4 Security Management .............................................................................................................................4-7
4.2.5 CDR Management...................................................................................................................................4-7
4.2.6 Environment Monitoring ........................................................................................................................4-8
5 Services and Functions..............................................................................................................5-1
5.1 Basic Services...................................................................................................................................................5-2
5.1.1 Teleservices.............................................................................................................................................5-2
5.1.2 Supplementary Services..........................................................................................................................5-3
5.1.3 ODB Services..........................................................................................................................................5-6
5.1.4 IN Services ..............................................................................................................................................5-7
5.1.5 Value Added Services .............................................................................................................................5-8
5.2 Basic Functions ..............................................................................................................................................5-10
5.2.1 Mobility Management...........................................................................................................................5-10
5.2.2 Security Management ...........................................................................................................................5-11
5.2.3 Handover ...............................................................................................................................................5-13
5.2.4 Call Processing......................................................................................................................................5-14
5.2.5 Charging................................................................................................................................................5-15
5.2.6 SSP ........................................................................................................................................................5-21
5.3 Description of Features ..................................................................................................................................5-22
5.3.1 List of Features......................................................................................................................................5-22
5.3.2 V100R005 Version................................................................................................................................5-24
5.3.3 V100R003 Version................................................................................................................................5-31
6 Networking and Application...................................................................................................6-1
6.1 Typical Networking..........................................................................................................................................6-2
6.1.1 MSC Networking ....................................................................................................................................6-2
6.1.2 GMSC Networking .................................................................................................................................6-4
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Product Description Contents
6.1.3 TMSC Networking..................................................................................................................................6-6
6.1.4 Dual-Homing Networking ......................................................................................................................6-7
6.1.5 Multi-Area Networking ........................................................................................................................6-10
6.1.6 Solution for Huawei NGN Interworking with CS Domain..................................................................6-11
6.1.7 Evolution Strategy of Huawei Mobile Core Network..........................................................................6-12
6.2 Network Application Cases............................................................................................................................6-13
6.2.1 Multi-area Commercial Network of Company A.................................................................................6-13
6.2.2 Dual-Homing Commercial Network of Company B ...........................................................................6-15
7 Reliability and Security Design..............................................................................................7-1
7.1 Reliability Design.............................................................................................................................................7-2
7.1.1 Hardware Reliability...............................................................................................................................7-2
7.1.2 Software Reliability ................................................................................................................................7-3
7.1.3 Reliability of Charging System ..............................................................................................................7-5
7.2 Security Design ................................................................................................................................................7-6
7.2.1 Networking Application Security ...........................................................................................................7-6
7.2.2 Data Security...........................................................................................................................................7-6
7.2.3 O&M Security.........................................................................................................................................7-7
7.2.4 Security Authentication Information ......................................................................................................7-7
8 Technical Specifications and Environmental Requirements ............................................8-1
8.1 Technical Specifications...................................................................................................................................8-2
8.1.1 System Capacity......................................................................................................................................8-2
8.1.2 System Processing Capability.................................................................................................................8-2
8.1.3 Protocol Processing Capability...............................................................................................................8-3
8.1.4 CDR Processing Capability ....................................................................................................................8-3
8.1.5 Number Analysis Capability...................................................................................................................8-4
8.1.6 Reliability Specifications........................................................................................................................8-4
8.1.7 Environmental Specifications.................................................................................................................8-4
8.1.8 Mechanical Data of Cabinet ...................................................................................................................8-5
8.1.9 Power Supply ..........................................................................................................................................8-6
8.1.10 Power Consumption..............................................................................................................................8-6
8.2 Introduction to Clock Synchronization System...............................................................................................8-8
8.2.1 Technical Features...................................................................................................................................8-8
8.2.2 Technical Specifications .........................................................................................................................8-8
8.3 EMC Specifications........................................................................................................................................8-10
8.4 Environmental Requirements.........................................................................................................................8-10
8.4.1 Storage Environment.............................................................................................................................8-10
8.4.2 Transportation Environment .................................................................................................................8-12
8.4.3 Running Environment...........................................................................................................................8-15
9 Compliant Specifications .........................................................................................................9-1
9.1 3GPP Specifications .........................................................................................................................................9-2
9.2 ITU-T Specifications........................................................................................................................................9-6
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9.3 Other Technical Specifications.........................................................................................................................9-9
Product Description
10 Installation...............................................................................................................................10-1
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Product Description Figures
Figures
Figure 1-1 Huawei mobile softswitch solution .....................................................................................................1-2
Figure 1-2 MSOFTX3000 in 2G/3G integration networking.............................................................................1-13
Figure 2-1 Appearance of an MSOFTX3000 cabinet ...........................................................................................2-2
Figure 2-2 Overall structure of the OSTA subrack ...............................................................................................2-3
Figure 2-3 Hardware structure of the MSOFTX3000...........................................................................................2-4
Figure 2-4 Logical structure of the MSOFTX3000 hardware..............................................................................2-6
Figure 2-5 Software structure of the MSOFTX3000............................................................................................2-8
Figure 2-6 Relationship between BAM server software, operating system, and database................................ 2-11
Figure 2-7 Configuration of MSOFTX3000 cabinets (when the NET Switch is configured in the integrated
configuration cabinet)...........................................................................................................................................2-12
Figure 2-8 Configuration of MSOFTX3000 cabinets (when the NET Switch is configured outside the cabinet)
...............................................................................................................................................................................2-13
Figure 2-9 Expansion configuration of the MSOFTX3000................................................................................2-14
Figure 3-1 Protocol interfaces provided by the MSOFTX3000 in a mobile network .........................................3-5
Figure 4-1 Network structure of the terminal system ...........................................................................................4-3
Figure 5-1 Networking model of Overlay network mode ..................................................................................5-21
Figure 5-2 Networking model of target network mode ......................................................................................5-22
Figure 5-3 Mini-A-Flex networking ...................................................................................................................5-32
Figure 5-4 Iu-Flex network architecture .............................................................................................................5-33
Figure 5-5 Ordinary encoding and decoding speech operation..........................................................................5-36
Figure 5-6 Encoding and decoding speech operation after activating TFO.......................................................5-36
Figure 5-7 Encoding and decoding speech operation after activating TrFO......................................................5-37
Figure 6-1 MSC networking..................................................................................................................................6-2
Figure 6-2 GMSC networking...............................................................................................................................6-5
Figure 6-3 TMSC networking ...............................................................................................................................6-6
Figure 6-4 1+1 backup networking.......................................................................................................................6-8
Figure 6-5 1+1 mutual assistance networking ......................................................................................................6-8
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Figures
Figure 6-6 N+1 backup networking (N = 2) .........................................................................................................6-9
Figure 6-7 N+1 mutual assistance networking (N = 2) ......................................................................................6-10
Figure 6-8 MA networking ..................................................................................................................................6-11
Figure 6-9 Networking structure for Huawei NGN interworking with the CS domain ....................................6-12
Figure 6-10 Evolution strategy of Huawei mobile core network .......................................................................6-12
Figure 6-11 Solution of Huawei R5 ....................................................................................................................6-13
Figure 6-12 Multi-area commercial network of company A ..............................................................................6-14
Figure 6-13 Dual-homing commercial network of company B .........................................................................6-15
Figure 8-1 Maximum allowed input jitter and lower limit of wander..................................................................8-9
Product Description
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Product Description Tab les
Tables
Table 1-1 Functions of the MSC server and the MGW ........................................................................................1-3
Table 1-2 Benefits offered by mobile softswitch networks ..................................................................................1-5
Table 1-3 Protocols ................................................................................................................................................1-7
Table 1-4 Related abbreviations ............................................................................................................................1-8
Table 1-5 Protocols, links, and signaling modes supported and interfaces provided by the MSOFTX3000......1-9
Table 1-6 Measures taken in designing the MSOFTX3000................................................................................1-11
Table 3-1 Numbers and functions of physical interfaces ......................................................................................3-2
Table 3-2 Specifications of FE electrical interfaces.............................................................................................. 3-3
Table 3-3 Specifications of E1 interfaces..............................................................................................................3-3
Table 3-4 Specifications of clock interfaces..........................................................................................................3-4
Table 3-5 Interfaces and protocols supported by the MSOFTX3000 in a mobile network .................................3-5
Table 3-6 Signaling and protocols supported by the MSOFTX3000. ..................................................................3-7
Table 5-1 Original CDR generation scenario......................................................................................................5-16
Table 5-2 List of the features supported by the MSOFTX3000 .........................................................................5-22
Table 7-1 Security authentications ........................................................................................................................7-7
Table 8-1 System capacity .....................................................................................................................................8-2
Table 8-2 Reference traffic model .........................................................................................................................8-2
Table 8-3 System processing capability ................................................................................................................8-2
Table 8-4 Protocol processing capability ..............................................................................................................8-3
Table 8-5 CDR processing capability....................................................................................................................8-3
Table 8-6 Number analysis capability ...................................................................................................................8-4
Table 8-7 Reliability specifications .......................................................................................................................8-4
Table 8-8 Environmental adaptation (long term operation)..................................................................................8-4
Table 8-9 Noise specifications...............................................................................................................................8-5
Table 8-10 Mechanical data of cabinet..................................................................................................................8-5
Table 8-11 Power supply........................................................................................................................................8-6
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Tabl es
Table 8-12 Overall power consumption ................................................................................................................8-6
Table 8-13 Power consumption (functional units) ................................................................................................8-7
Table 8-14 Technical specifications of the clock synchronization system...........................................................8-8
Table 8-15 Climate environment requirements (for storage)..............................................................................8-10
Table 8-16 Density requirements for mechanically active materials (for storage) ............................................8-11
Table 8-17 Density requirements for chemically active materials (for storage) ................................................8-11
Table 8-18 Mechanical stress requirements (for storage)...................................................................................8-11
Table 8-19 Waterproof requirements ...................................................................................................................8-12
Table 8-20 Climate environment requirements (for transportation)...................................................................8-12
Table 8-21 Density requirements for mechanically active materials (for transportation)..................................8-13
Table 8-22 Density requirements for chemically active materials (for transportation) .....................................8-13
Table 8-23 Mechanical stress requirements (for transportation) ........................................................................8-14
Table 8-24 Temperature and humidity requirements ..........................................................................................8-15
Table 8-25 Other climate environment requirements..........................................................................................8-15
Product Description
Table 8-26 Density requirements for mechanically active materials (for equipment running) .........................8-16
Table 8-27 Density requirements for chemically active materials (for equipment running) .............................8-16
Table 8-28 Mechanical stress requirements (for equipment running) ................................................................8-16
Table 9-1 The compliant 3GPP R4 specifications (2004.12) of the MSOFTX3000............................................9-2
Table 9-2 The compliant ITU-T specifications of the MSOFTX3000.................................................................9-6
Table 9-3 Technical specifications.........................................................................................................................9-9
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Product Description 1 Introduction
1 Introduction
About This Chapter
The following table lists the contents of this chapter.
Section Describes
1.1 Product Orientation Huawei mobile softswitch solution and the
MSOFTX3000.
1.2 Product Features Features of the MSOFTX3000.
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Product Description 1 Introduction
parts, namely, the MSC server and the MGW, in the 3GPP R4 and later versions.
Table 1-1
describes the function of the MSC server and the MGW.
Table 1-1 Functions of the MSC server and the MGW
Network
Function Product
Element
MSC
server
It connects with the BSS or the UTRAN,
and performs the following control
functions of the CS domain:
z
Mobility management
z
Security management
z
Handover processing
z
Signaling processing
z
Call processing
z
Subscriber data management (function
of the VLR)
MGW It is the endpoint of the MSOFTX3000's
connection with the PSTN or the PLMN,
and performs the following functions:
z
Media transformation
z
Bearer management
z
Coding/Decoding of digital signals
z
Echo cancellation
z
Conference bridging
The MSOFTX3000 provided by
Huawei serves as an MSC
server, as shown in
Figure 1-1.
The UMG8900 provided by
Huawei serves as an MGW, as
shown in
Figure 1-1.
PLMN = Public Land Mobile Network
1.1.2 Features of Huawei Mobile Softswitch Solution
Support for 2G/3G Integration
The carriers who are operating or will operate on both 2G and 3G networks must consider
how toprotect the investment in the 2G network when expanding it.
Huawei offers a combined GSM/UMTS solution to help carriers solve the problem. This
solution supports that the BSS and the UTRAN can connect to the network simultaneously, so
as to provide services for 2G and 3G subscribers at the same time. The 2G and 3G networks
can share equipment resources. Therefore, the solution has the following benefits:
z
Reducing the capital expenditure (CAPEX) of carriers
z
Improving subscriber satisfaction
z
Unifying network operation
z
Simplifying network topology
z
Saving network resources
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1 Introduction
This solution can be upgraded online and configured dynamically during the evolution from
the GSM to the UMTS.
High Efficiency
In Huawei mobile softswitch solution, MGWs can be located in many cities, and IP bearers
can be used between MGWs. This simplifies the network interconnection topology and
network management, and saves transmission resources for carriers.
The Huawei mobile softswitch equipment enjoys:
z
z
z
It saves equipment room space, and reduces the power consumption. Carriers can focus their
O&M on a small number of softswitch offices, thereby reducing the operation expenditure
(OPEX).
On the basis of an open architecture and distributed software technology, the Huawei mobile
softswitch solution helps carriers quickly develop services. Statistics shows that the
development cycle of services based on mobile softswitch networks is 50% shorter than that
based on conventional switching equipment.
HUAWEI MSOFTX3000
Product Description
High integration
Large capacity
Powerful processing capability
Highly Reliable
The innovative dual homing solution provided by Huawei ensures the high reliability (1+1
mutual aid and N + 1 backup) for MSC Servers. It supports the Iu-Flex scheme, as well as
multiple backup modes of HLR. Based on specific conditions, Huawei is able to use these
modes flexibly.
With the network-level flow control mechanism, Huawei ensures that the voice quality is not
affected when the IP bearer network is congested. The advanced flow control mechanism
ensures that the network remains highly reliable even when traffic is heavy.
Smooth Evolution
The fixed mobile convergence (FMC) is the trend of network development. During this
process, it is important to integrate the equipment of fixed and mobile networks. At present,
Huawei provides a number of devices that can be used in both fixed and mobile networks, and
also provides integrated services.
In the future, the fixed and mobile networks can be integrated through the IMS subsystem at
the network level. The Huawei mobile softswitch equipment MSC Server and MGW can also
be evolved to the equipment in IMS smoothly. This saves the capital expenditure (CAPEX)
for carriers.
More Benefits
Compared with the conventional switched circuit network (SCNs), mobile softswitch
networks offer carriers the benefits, as listed in
Table 1-2:
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1 Introduction
Product Description
1.1 Product Orientation
1.1.1 Introduction to Huawei Mobile Softswitch Solution
By separating the bearer from the control, a networking model with the softswitch technology
as the core can use bearer networks such as the IP and TDM. This is a key feature of the
softswitch technology. At present, the softswitch technology is chosen by most carriers to
build mobile core networks (CNs). By using distributed networking mode and IP bearers,
mobile softswitches offer carriers the following benefits:
z
Reducing operation costs by improving the efficiency of network transmission
z
Protecting the carrier investment by providing smooth evolution from one model to
another as the subscriber base and traffic increases
The mobile softswitch solution of Huawei is based on the networking requirements and
network features of carriers. It provides a 2G or 3G integration networking scheme that is
easy to operate and maintain. The solution supports networking schemes of the GSM, 3GPP,
R99, 3GPP R4, and 3GPP R5.
softswitch solution of Huawei for 3GPP R4.
Figure 1-1 shows a typical networking model of the mobile
Figure 1-1 Huawei mobile softswitch solution
Bearer
Signaling
BSS
2G Access
3G Access
UTRAN
GGSN: Gateway GPRS Support Node HLR: Home Location Register MGW: Media Gateway
MSC Server: Mobile Switching Center Server CN: Core Network CS: Circuit Switched domain
SGSN: Serving GPRS Support Node PS: Packet Switched domain PSTN: Public Switched Telephone Network
UTRAN: UMTS Terrestrial Radio Access Network BSS: Base Station Subsystem
MSC Server
(MSOFTX3000)
MGW
(UMG8900)
SGSN
CN
HLR
GMSC Server
(MSOFTX3000)
MGW
(UMG8900)
GGSN
CS
PS
Other
Networks
PSTN
Internet
Based on the evolution strategy of the CS domain of the mobile CN and the requirement for
constructing an all IP networking, the MSC in the GSM and 3GPP R99 is divided into two
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Table 1-2 Benefits offered by mobile softswitch networks
Benefit Description
The CAPEX is
lowered.
The OPEX is
lowered.
In contrast to the closed structure of the conventional SCN, a
mobile softswitch network uses the following to provide services:
A control core
Open interfaces
Universal protocols
It helps carriers to build an open and low-cost network and
improve the speed of service deployment. The mobile softswitch
technology also enables smooth migration from 2G to 3G and IMS
networks. This decrease the CAPEX for network migration.
The centralized mobile softswitch equipment with large capacity
has higher equipment resource utilization in the following aspects:
z
The distributed media gateway reduces alternative routes in local
transmission.
z
The flat networking mode does not require the construction of
tandem layer.
z
IP bearer cuts down the transmission costs for the whole
network.
Statistics shows that the CAPEX of a mobile softswitch network is
20% to 30% lower than that of a conventional SCN.
Compared with the conventional switching equipment, the mobile
softswitch equipment enjoys:
z
Better processing capability
z
A higher level of integration
z
Lower power consumption
This helps save 60% to 70% of the equipment room area and 30%
power consumption. With the bearer separated from the control,
the core of the mobile softswitch network can be located and
managed in a centralized manner. This reduces the network O&M
costs.
Network security is
enhanced.
The mobile softswitch network uses network-level reliability
mechanisms, such as the following:
z
Dual homing
z
Iu-Flex
The dual homing mode realizes the backup of mobile softswitch
equipment. When a mobile softswitch is faulty, the system can
smoothly switch the service to the standby softswitch. This ensures
that the service is not affected.
The Iu-Flex technology enables networks to share multiple CN
equipment nodes. Hence, services are not affected when a single
MGW is faulty and the network is more secure .
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HUAWEI MSOFTX3000
Product Description
Benefit Description
New services can be
offered quickly and
easily
New services can be provided on the mobile softswitch layer
without affecting the MGW in the bearer layer. Therefore, the
mobile softswitch network allows users to develop and offer new
services more flexibly and quickly in the following ways:
z
The open network structure shortens the cycle of developing
services.
z
Centralized service management makes service deployment
easy.
z
The network supports SIP. This enhances the capability of
providing multimedia services.
Note:
CAPEX = Capital Expenditure; OPEX = Operational Expenditure; SIP = Session Initiation Protocol
1.1.3 Introduction to the MSOFTX3000
Overview
The HUAWEI MSOFTX3000 Mobile SoftSwitch Center (called MSOFTX3000 in this
manual) is a large capacity mobile softswitch developed by Huawei. It provides:
z
Advanced software and hardware technologies
z
Dynamic service provision capabilities
z
Powerful networking functions
The MSOFTX3000 serves as the MSC server at the control layer of the CS domain in the
WCDMA core network. It implements functions, such as call control and connection
management for voice and data services based on IP or TDM.
By supporting protocols and functions of both the GSM and the WCDMA, the MSOFTX3000
allows for smooth evolution from the GSM to the WCDMA. With the bearer separated from
the control, the MSOFTX3000 can function as the core of a network with different bearer
networks such as IP and TDM. During the upgrade of the CN of the mobile network (GSM ->
3GPP R99 -> 3GPP R4 -> 3GPP R5), the MSOFTX3000 can serve as many network elements
(NEs), including the following:
z
VMSC Server/VLR
z
GMSC Server
z
TMSC Server
z
MSC/SSP
VMSC Server/VLR
The MSOFTX3000 supports many protocols, including H.248, BICC, SIP, CAP, BSSAP,
RANAP, MAP, ISUP, TUP, and BSSAP+. It can provide the functions of a VMSC server and
a VLR. When connected with the UMG8900 and the shared interworking function (SIWF) of
Huawei, the MSOFTX3000 supports the BSS/UTRAN access and can serve as a 2G VMSC, a
3G VMSC, or a 2G/3G integrated VMSC.
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Product Description 1 Introduction
Tab le 1-3 lists the protocols.
Table 1-3 Protocols
Abbreviation Full Name
BICC Bearer Independent Call Control Protocol
CAP CAMEL Application Part
BSSAP Base Station Subsystem Application Part
RANAP Radio Access Network Application Part
MAP Mobile Application Part
ISUP Integrated Services Digital Network User Part
TUP Telephone User Part
BSSAP+ Base Station Subsystem Application Part+
When the MSOFTX3000, UMG8900, and SIWF of Huawei are used together in the GSM or 3GPP R99,
they are called the MSC9880.
GMSC Server
The GMSC server is a node between the CS domain of the CN and external networks. With
the GMSC server, a mobile network can exchange signaling with the following:
z
PSTN
z
NGN
z
Integrated services digital network (ISDN)
z
Other PLMNs
The GMSC server performs the following functions:
z
Serving as a mobile gateway office between networks
z
Analyzing routing
z
Implementing call connection and settlement between networks
The MSOFTX3000 supports H.248, MAP, and ISUP. It provides the following functions:
z
Black and white lists
z
Call authentication
z
Call interception
z
Storage of a large number of CDRs
When connected with the UMG8900 of Huawei, the MSOFTX3000 can serve as a GMSC
server.
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1 Introduction
TMSC Server
MSC/SSP
HUAWEI MSOFTX3000
Product Description
As a toll tandem office, the TMSC server performs the following functions:
z
Routing analysis
z
Intra-network toll call convergence
In applications, a layered structure is used in a large network. The MSOFTX3000 supports
H.248, ISUP, and BICC. When connected with the UMG8900 of Huawei, the MSOFTX3000
can serve as a TMSC server. It provides a large number of TDM trunks or IP bearer channels.
The MSOFTX3000 can provide the functions of a gsmSSF. It supports CAP, CAMEL 1,
CAMEL 2, CAMEL 3, and CAMEL 4. In the target network mode, the MSOFTX3000 can
serve as an SSP.
The MSOFTX3000 can also support the Overlay network mode and trigger mobile IN
services based on number segments.
Tab le 1-4 lists related abbreviations.
Table 1-4 Related abbreviations
Abbreviation Full Name
SSF Service Switching Function
CAP CAMEL Application Part
INAP Base Station Subsystem Application Part
CAMEL Customized Applications for Mobile Network Enhanced Logic
SSP Service Switching Point
IP Intelligent Peripheral
IN Intelligent Network
1.2 Product Features
1.2.1 Dynamic Service Provision Capabilities
The MSOFTX3000 supports protocols and functions of both the GSM and the WCDMA. It
can also serve as different types of NEs, and provides the following services:
z
Basic services: voice, SMS, GSM fax, GSM bearer, and UMTS bearer
z
Supplementary services: call forwarding, call restriction, number identification, call
completion, multiparty, unstructured data transfer, closed user group, explicit call
transfer, and enhanced multi-level precedence and preemption
z
Operator determined barring services: barring of all outgoing calls, barring of outgoing
international calls, barring of outgoing international calls except those to the home
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HUAWEI MSOFTX3000
Product Description 1 Introduction
PLMN country, barring of all incoming calls, barring of supplementary management, and
barring of incoming calls when roaming outside home PLMN country
z
IN services: prepaid and mobile virtual private network
z
Value-added service: multimedia, mobile location, ring back tone, equal access, charging
based on time and area, enhanced roaming restriction, alternate line service, and voice
and video double number
1.2.2 Powerful and Flexible Networking Capabilities
The MSOFTX3000 provides open and standard interfaces. It supports GSM, 3GPP R99, and
3GPP R4 networking and allows smooth upgrades and expansion.
links, and signaling modes supported, and interfaces provided by the MSOFTX3000 to
interwork with other NEs.
Table 1-5 Protocols, links, and signaling modes supported and interfaces provided by the
MSOFTX3000
Table 1-5 lists the protocols,
Protocol,
Interface Interworking and Benefits
Link and
Signaling
Mode
H.248 Mc For the MSOFTX3000 to interconnect with the MGW
BSSAP A For the MSOFTX3000 to interconnect with the BSC when
the MSOFTX3000 is connected with the MGW
RANAP Iu For the MSOFTX3000 to interconnect with the RNC in a
WCDMA network when the MSOFTX3000 is connected
with the MGW
MTP, TUP,
and ISUP
MAP C, D, E,
- For the MSOFTX3000 to interconnect with the STP and
PSTN switches
For the MSOFTX3000 to interconnect with the HLR, VLR,
G, and Lg
MSC, SMC, and GMLC in a GSM or WCDMA network
CAP - For the MSOFTX3000 to interconnect with the SCP in an
IN
SIP - For the MSOFTX3000 to interconnect with the IMS or
NGN
BICC - Provides the Nc interface for the MSOFTX3000 to
interconnect with the MSC server
BSSAP+ Gs For the MSOFTX3000 to interconnect with the SGSN in
the PS domain
SIGTRAN
(M2UA,
- For the MSOFTX3000 to interconnect with the SG and the
MGW with built-in SG function
M3UA, and
IUA)
R2 - For the MSOFTX3000 to interconnect with PSTN switches
that support only R2
Issue 05 (2007-05-20) Huawei Technologies Proprietary 1-9
1 Introduction
HUAWEI MSOFTX3000
Product Description
Protocol,
Interface Interworking and Benefits
Link and
Signaling
Mode
PRA - For the MSOFTX3000 to interconnect with the PBX
Supporting
virtual multiple
signaling point
codes
- Meets the requirements of a large number of trunks in the
case of GMSC networking.
Improves reliability of networking by using load sharing
networking mode between virtual multiple signaling points
and remote signaling points.
TDM 2-Mbit/s
links
- Improves the traffic capacity between two signaling points,
simplifies signaling networking, and lowers network
construction costs.
ATM 2-Mbit/s
links
- Supports ATM bearer through E1 demultiplexing, provides
flexible networking schemes, reuses existing equipment
and transmission resources, and reduces network
construction costs. At present, the ATM 2-Mbit/s links
support the MAP signaling only.
Satellite
transmission
Mc and Iu Makes networking more flexible and networks more
adaptive to ground conditions.
links
FTP and
FTAM
- For the MSOFTX3000 to interconnect with the billing
center
MML - For the MSOFTX3000 to interconnect with the NMC
Note:
NMC: Network management center
1.2.3 Large Capacity and High Integration
The MSOFTX3000 provides the advanced hardware technology, featuring modular hardware
structure, large capacity, and high integration:
z
All boards use advanced integrated circuits such as the ASIC, PLD, and FPGA. This
simplifies the MSOFTX3000 and improves the integration of the system.
z
In full configuration, the MSOFTX3000 can support up to 1.8 million subscribers
(serving as a VMSC) or 450 thousand TDM circuits (serving as a TMSC).
z
The MSOFTX3000 in full configuration requires only three cabinets, thus occupying less
space. In addition, the power consumption of the MSOFTX3000 is low (less than six
kW).
1.2.4 Powerful Processing Capabilities
With a distributed hardware structure, high performance chips, high speed buses, and high
speed PowerPC processors, the MSOFTX3000 provides powerful processing capabilities (the
following data is based on the full configuration):
1-10 Huawei Technologies Proprietary Issue 05 (2007-05-20)
HUAWEI MSOFTX3000
Product Description 1 Introduction
z
When serving as a VMSC server, the MSOFTX3000 supports up to 2700k BHCA.
z
When serving as a GMSC server, the MSOFTX3000 supports up to 7200k BHCA.
z
When serving as a TMSC server, the MSOFTX3000 supports up to 9000k BHCA.
1.2.5 Highly Reliable
The MSOFTX3000 is highly reliable, because the following are carefully designed
z
Hardware
z
Software
z
Billing system
For details, see
Table 1-6.
Table 1-6 Measures taken in designing the MSOFTX3000
Item Measure
Hardware design
z
Active/standby backup, load sharing, and redundancy techniques
for boards.
z
Optimized fault detection and isolation techniques. This improves
the system maintenance.
z
Dual connections for important components and dual plane and
mesh connection design. This ensures that the system is not
affected when a single node is faulty.
Software design Layered modular structures which enable the protection, fault
tolerance, and fault monitoring functions of the software
Billing The billing gateway of the MSOFTX3000 is the iGWB of Huawei.
The iGWB uses dual system hot backup and Hot RAID5 hard disk
array. This enables dual backup of billing data and mass storage.
The reliability assessment method adopted shows the following:
z
The MTBF of the MSOFTX3000 reaches 24 years (in full configuration)
z
The MTBF of the MSOFTX3000 reaches 42 years (when configured with only one
subrack).
z
The MTTR of the MSOFTX3000 is lesser than one hour (not considering the preparation
time).
MTBF is short for Mean Time Between Failure. MTTR is short for Mean Time To Repair.
1.2.6 Capabilities for Smooth Expansion
The designs of the hardware and the system processing function of the MSOFTX3000 take
future network expansion into account. The MSOFTX3000 supports smooth expansion of
networks:
z
Hardware design: The MSOFTX3000 uses the open standards telecom architecture
(OSTA) platform as the hardware platform. The OSTA provides a modular overlay
structure. The number of subracks ranges from 1 to 10. The subracks are connected
through LAN Switches to help in smooth expansion.
Issue 05 (2007-05-20) Huawei Technologies Proprietary 1-11
1 Introduction
z
System processing function design: The MSOFTX3000 provides excellent processing
performance and reserves space for future service expansion.
1.2.7 Advanced Charging Capabilities
The MSOFTX3000 supports the charging of many services, including the following:
z
Vo i c e ,
z
Data service
z
Vide o servic e
z
SMS
z
Supplementary services
With over 40 types of original CDRs, the MSOFTX3000 offers different types of charging.
The features of charging are as follows:
z
Supporting CDR types, such as mobile-originated call ticket, mobile-terminated call
ticket, call forwarding ticket, transit ticket, mobile-originated SMS ticket,
mobile-terminated SMS ticket, outgoing gateway exchange ticket, incoming gateway
exchange ticket, roaming ticket, supplementary service ticket, IN mobile-originated call
ticket, IN mobile-terminated call ticket, IN call forwarding ticket, and IN pickup ticket
z
Supporting the storage of CDRs based on modules, services, or time
z
Supporting standard FTP and FTAM charging interfaces
z
Supporting a charging accuracy of 10 milliseconds
z
Supporting the generation of intermediate CDRs
z
Supporting the call restriction function in the case of CDR pool threshold crossing
z
Supporting hot billing
z
Supporting Advice of Charge
z
Supporting IN announcement charging
HUAWEI MSOFTX3000
Product Description
1.2.8 Excellent Performance Measurement Function
The MSOFTX3000 provides excellent performance measurement (PM) functions. And
supports many PM entities and tasks. It uses tables and figures to display data in real time and
report service loading and system running status. The performance measurement features of
the MSOFTX3000 are as follows:
z
Supporting the measurement and record of traffic (up to 200 tasks and 3,000 short or
1,000 long subtasks can be run at the same time; up to 4,000 measurement objects are
supported)
z
Predefining measurement items and time, automatically starting and stopping
measurement at specified time on specified dates, canceling predefined items, and
measuring one or many items based on the actual requirements
z
Supporting at least four measurement periods every day for predefined measurement
items and automatically exporting measurement results to terminals and network
management centers
z
Supporting the measurement of the number of times that a supplementary service is
activated or cancelled
z
Supporting the performance measurement of the IP port traffic of the softswitch system
1-12 Huawei Technologies Proprietary Issue 05 (2007-05-20)
HUAWEI MSOFTX3000
Product Description 1 Introduction
1.2.9 Convenient and Useful O&M Function
The MSOFTX3000 provides convenient and useful O&M functions:
z
The MSOFTX3000 provides many O&M modes. The terminal system of the
MSOFTX3000 is based on the Client/Server distributed structure. It provides several
maintenance modes, such as the graphic user interface (GUI) and man machine language
(MML) commands. Local and remote clients can access the MSOFTX3000 at the same
time. Carriers can set up management network based on network components,
management requirements, and investment scale.
z
The MSOFTX3000 provides the GUI with a special navigation tree. The GUI is visual,
which minimizes the need for memory. The GUI features graphic topology views of
network components and device panel views.
z
The MSOFTX3000 provides the call tracing, signaling tracing, and interface tracing
functions, as well as message the explanation function. The trace viewer tool allows
operators to analyze and locate faults easily.
z
The MSOFTX3000 supports the real time fault management function based on H.248.
The system receives and displays fault reports of network equipment in real time. This
helps operators to find the source of a fault quickly and take measures to restore the
services.
z
The MSOFTX3000 supports hot software patches, dynamic data setting, and quick
version upgrade/rollback.
z
The MSOFTX3000 supports the associated subscriber tracing functions to provide the
entire network tracing feature. This helps carriers troubleshoot faults by locating the
faults. Therefore, carriers can effectively process subscribers' complains.
1.2.10 Support for 2G/3G Integration
The MSOFTX3000 supports mixed networking and interworking of GSM, 3GPP R99, 3GPP
R4, and 3GPP R5 networks. That is, the MSOFTX3000 supports the 2G/3G integrated
networking. It can connect with the BSS and UTRAN and provide services for 2G and 3G
subscribers at the same time.
Figure 1-2 MSOFTX3000 in 2G/3G integration networking
MSC
MSOFTX3000
A
BSS
Iu-CS
UMG8900
UTRAN
Figure 1-2 shows a typical networking model.
TUP/ISUP
BICC
GM SC
MSOFTX3000
UMG8900
TUP/ISUP
PSTN/
PLMN
Issue 05 (2007-05-20) Huawei Technologies Proprietary 1-13
1 Introduction
HUAWEI MSOFTX3000
Product Description
In the 2G/3G integration networking structure, the MSOFTX3000 and the UMG8900 can be
used as an MSC (GMSC or TMSC) function entity:
z
The MSC provides A and Iu-CS interfaces to support the access of GSM and UMTS
subscribers. One MSOFTX3000 can be connected with many UMG8900s. The
UMG8900 can be located remotely.
z
The MSOFTX3000 allows subscribers' handover between GSM and UMTS systems.
The MSOFTX3000 enables the network to control the subscriber access.
z
GSM and UMTS subscribers can access the MSOFTX3000 at the same time. This makes
network upgrades smooth, and services of original subscribers of the network are not
affected during the upgrades.
1-14 Huawei Technologies Proprietary Issue 05 (2007-05-20)
HUAWEI MSOFTX3000
Product Description 2 System Structure
2 System Structure
About This Chapter
The following table lists the contents of this chapter.
Section Describes
2.1 Hardware Structure The physical and logical structures of the MSOFTX3000
hardware.
2.2 Software Structure The logical structure of the MSOFTX3000 software.
2.3 Capacity Expansion The normal and expanded configuration of the
MSOFTX3000 cabinets.
Issue 05 (2007-05-20) Huawei Technologies Proprietary 2-1
2 System Structure
2.1 Hardware Structure
2.1.1 Appearance
HUAWEI MSOFTX3000
Product Description
The MSOFTX3000 is composed of the N68-22 cabinets of Huawei.
appearance of an N68-22 cabinet:
Figure 2-1 Appearance of an MSOFTX3000 cabinet
Figure 2-1 shows the
The N68-22 cabinet is a 19-inch standard cabinet that complies with the following
international standards:
z
IEC60297-1, Dimensions of mechanical structures of the 482.6 mm (19 in) series Part
1:Panels and racks
z
IEC60297-2, Dimensions of mechanical structures of the 482.6 mm (19 in) series Part
2:Cabinets and pitches of rack structures
z
IEC60297-3, Dimensions of mechanical structures of the 482.6 mm (19 in) series Part
3:Subracks and associated plug-in units
2.1.2 Physical Structure
Introduction to OSTA Platform
The OSTA platform is used in the MSOFTX3000 as the hardware platform. The platform uses
the Ethernet bus as the bus of the backplane. This ensures high reliability of the
2-2 Huawei Technologies Proprietary Issue 05 (2007-05-20)
2 System Structure
z
Alarm boards
z
Power boards (each occupies two standard slots)
The remaining 12 slots are used for service boards and interface boards.
Hardware Structure of the MSOFTX3000
The MSOFTX3000 hardware mainly consists of three parts:
z
OSTA subrack
z
BAM
z
iGWB (it is the billing gateway.)
BAM is short for Back Administration Module.
The OSTA subracks form the host of the MSOFTX3000. The host provides the functions of
signaling and service processing and resource management.
The BAM, the local maintenance terminals (LMTs) and the iGWB form the background of
the MSOFTX3000. The background offers the OAM functions and CDR management.
Figure 2-3 shows the hardware structure of the MSOFTX3000.
HUAWEI MSOFTX3000
Product Description
Figure 2-3 Hardware structure of the MSOFTX3000
FE
2×FE
2×FE
NET Switch 0
NET Switch 0
NET Switch 0
FE
NET Switch 1
NET Switch 1
NET Switch 1
FE
FE
FE
LAN Switch 0
LAN Switch 0
LAN Switch 0
LAN Switch 1
LAN Switch 1
LAN Switch 1
机框
机框
机框
Host
主机部分
0#
0# Subrack
1#
1# Subrack
2# Subrack
2#
9# Subrack
9#
FE: Fast Ethernet LMT: Local Maintenance Terminal
2×FE
FE
FE
FE
2×FE
2×FE
2×FE
To IP MAN
FE
FE
To IP MAN
FE
FE
iGWB
主用
Active iGWB
Standby iGWB
备用
Background
后台部分
EWS
iGWB
BAM
BAM
BAM
To Billing Center
FE
To Billing Center
LAN Switch
LAN Switch
LAN Switch
WS WS WS
WS WS WS
WS WS WS
To network
management
center
2-4 Huawei Technologies Proprietary Issue 05 (2007-05-20)
HUAWEI MSOFTX3000
Product Description 2 System Structure
Inter-Device Communication
The inter-device communication of the MSOFTX3000 system is as follows:
z
The subracks communicate with each other through the internal Ethernet. Each subrack
is connected to LAN Switches 0 and 1 through two network cables.
z
The subracks communicate with the BAM and iGWB through the internal Ethernet. The
BAM and the iGWB are connected to the LAN Switches 0 and 1 through two network
cables.
z
The BAM and the iGWB are each connected to a LAN Switch through a network cable.
The LMTs interact with the BAM and the iGWB through the TCP/IP protocols in
client/server mode.
System Capacity
The system capacity is determined by the number of service processing subracks which
ranges from 1 to 10 in the MSOFTX3000. Hence, the MSOFTX3000 can expand its capacity
smoothly.
Complying With International Standards
The OSTA subracks and boards comply with the following international standards:
z
IEEE1101.1-1991, IEEE stand for Mechanical Core Specification for Microcomputers
Using IEC 60603-2 connectors
z
IEEE1101.10-1996, IEEE stand for Additional Mechanical Core Specification for
Microcomputers Using IEEE Std 1101.1-1991 Equipment Practice
z
IEEE1101.11-1998, IEEE stand for Mechanical Rear Plug-in Units Specification for
Microcomputers Using IEEE 1101.10 Equipment Practice
2.1.3 Logical Structure
The logical structure of the MSOFTX3000 hardware system includes five modules:
z
System support module (SSM)
z
Interface module (IM)
z
Signaling lower-layer processing module (SLLPM)
z
Service processing module (SPM)
z
Operation & maintenance module (OMM)
Figure 2-4 shows the logical structure of the MSOFTX3000 hardware.
Issue 05 (2007-05-20) Huawei Technologies Proprietary 2-5
HUAWEI MSOFTX3000
Product Description 2 System Structure
MSOFTX3000. As a result, the MSOFTX3000 can exchange and transfer data packets of
variable lengths.
The OSTA platform is structured in a standard subrack, which is 19 inches wide and 9U high.
Front boards and back boards are installed, as shown in
Figure 2-2.
Figure 2-2 Overall structure of the OSTA subrack
(3) (1)(2) (2)
(4)
(5)
(6)
(7) (8) (7) (9) (1)
(1) Power boards (2) Interface boards (3) Ethernet communication boards
(4) Back boards (5) Backplane (6) Front boards
(7) Service boards (8) System management boards (9) Alarm board
In the OSTA subrack, the front boards are:
z
Service boards
z
System management boards
z
Alarm boards
In the OSTA subrack, the back boards are:
z
Interface boards
z
Ethernet communication boards
Power boards can be installed either at the front or at the back. The front and back installation
mode separates the functions of the front boards from those of the back boards, and has the
following advantages:
z
Simplifying the board design
z
Unifying the board functions
z
Simplifying the hardware structure
z
Improving reliability of the system
z
Improving versatility of the boards
z
Enhancing flexibility of system configuration
In the MSOFTX3000, all subracks have the same hardware structure. The width of the
subrack is 21 times the width of a standard board slot. The following boards must be
configured in the fixed slots of the subrack, occupying the width of nine standard board slots:
z
System management boards
z
Ethernet communication boards
Issue 05 (2007-05-20) Huawei Technologies Proprietary 2-3
2 System Structure
Figure 2-4 Logical structure of the MSOFTX3000 hardware
HUAWEI MSOFTX3000
Product Description
Interface
Module
BITS
E1/T1
Interface
ATM-2M
Interface
FE
Interface
NMS
WS
BC
WCKI
WEPI
WEPI/
WEAM
WBFI/
WIFM
BAM
iGWB
Operation &
Maintenance Module
System Support Module
WHSC
Signaling
Lower-Layer
Processing
Module
CPC
WBSG
Service
Processing
Module
WCCU
WVDB
WCDB
WMGC
WSIU/WSMU
System Support Module
LAN
bus
OSTA bus
The SSM implements the following functions:
z
Software and data loading
z
Device management and maintenance
z
Inter-board communications
It comprises the following units:
z
System management unit (WSMU)
z
System interface unit (WSIU)
z
Hot-swap and control unit (WHSC)
z
Core LAN Switch
The WSMU is the main control board of a subrack. Through the system buses and the serial
port, the WSMU can achieve the following functions of all the devices in the system:
z
Loading control
z
Data configuration
Working status controlThe WHSC implements the following functions:
z
Bridge connection between the left and right shared resource buses
z
Hot swappability control of board
z
Intra-subrack LAN bus switching
2-6 Huawei Technologies Proprietary Issue 05 (2007-05-20)
HUAWEI MSOFTX3000
Product Description 2 System Structure
The signaling traffic streams are formed through the LAN bus provided by the WHSC. The
WHSC is not configured with a CPU. Therefore, the WHSC is directly configured and
maintained by the WSMU through the Ethernet bus.
The core LAN Switch implements the following functions:
z
Interconnection of multiple subracks
z
Connection between these subracks and management devices
Interface Module
The IM provides various physical interfaces to meet the system networking demands,
including:
z
Narrowband interface: The E1_pool interface unit (WEPI) provides eight E1 interfaces
to realize the framing and line interfacing function (MTP1 function). The WEPI
interworks with the MTP2 processing unit WCPC (subboard of the WCSU) of the
signaling lower layer processing module through the internal HW.
z
ATM-2M interface: The WEPI provides eight E1 interfaces and two 8-Mbit/s HW signal
cables to connect with the WEAM. The WEAM segments and re-assembles the ATM
cells in the data streams, and transfers signaling to the WBSG through internal LAN bus.
z
FE interface: The WIFM provides the 100-Mbit/s Ethernet electrical interface by
configuring the FEP subboard and the WBFI. It distributes and brings together
broadband signaling information streams, and distributes them to the specified
processing unit based on the IP address and the port number.
z
The narrowband signaling requires clock synchronization. The MSOFTX3000 provides
two kinds of clock sources, BITS and E1, and the WCKI provides external interfaces.
Signaling Lower-Layer Processing Module
The SLLPM offers the lower layer protocol processing function. It includes SS7 MTP2
processing unit (WCPC) and SCTP processing unit (WBSG):
z
The WCPC processes SS7 MTP2 over narrowband E1 and communicates with the
service processing unit (WCSU) through the internal bus. The WCPC is a subboard of
the WCSU.
z
The WBSG handles the lower layer signaling over IP and ATM (by using the ATM
2-Mbit interface), and distributes it to the upper layer service processing board.
Service Processing Module
The SPM is composed of the service processing unit (WCCU/WCSU), central database unit
(WCDB), VLR database unit (WVDB) and media gateway control unit (WMGC):
z
The WCCU processes the signaling protocols on Layer 3 or a higher layer (MTP3,
M3UA, ISUP, SCCP, TCAP, MAP and CAP) necessary for service features. It also
implements call control on the application layer and processes intelligent CAMEL
services. In this system, two WCPCs pinched on the WCCU make a WCSU.
z
As the central database unit, the WCDB stores centralized resources, such as inter-office
trunk resources, local office subscriber data, and gateway capability status. It also
provides the call resource query service for the service processing unit.
z
The WVDB is a dynamic database, which provides the functions of the VLR.
z
The WMGC controls the H.248 media gateways.
Issue 05 (2007-05-20) Huawei Technologies Proprietary 2-7
2 System Structure
The WCCU/WCSU, WCDB, WBSG, WMGC, WIFM and WAFM are universal processing boards in the
system. They are pinched with different subboards and loaded with different software. They
communicate with each other through Ethernet.
Operation & Maintenance Module
The OMM has the following functions:
z
Implementing operation, maintenance and management of the equipment
z
Providing man-machine interfaces to users to implement local O&M
z
Providing interfaces for the Network Management System (NMS)
To provide CDRs, the iGWB must be configured in the MSOFTX3000 to manage CDRs and
provide billing interfaces for the billing center.
2.2 Software Structure
2.2.1 Overview
HUAWEI MSOFTX3000
Product Description
The MSOFTX3000 adopts a distributed software structure. The system distributes its software
functions and features to boards and servers. You can configure them flexibly to meet the
actual requirement. Based on its location, the MSOFTX3000 software consists of two parts:
z
Host software
z
BAM software
Figure 2-5 shows the software structure of the MSOFTX3000.
Figure 2-5 Software structure of the MSOFTX3000
Host software BAM software
Service processing
Protocol processing
Database
Device mgmtSignaling bearer
Middleware
Operating system
Performance
Bill
Alarm
Maintenance
Communication Exchange
Database software
Performance
Bill
Alarm
Maintenance
Operating system
GUI
MML
2-8 Huawei Technologies Proprietary Issue 05 (2007-05-20)
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