ISSUEISSUE
Fixed Network Curriculum
Development Section
Fixed Network Curriculum
Development Section
OAA000002 NGN DescriptionOAA000002 NGN Description
2.02.0
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Course ContentsCourse Contents
About NGN
U-SYS System Description
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What is NGN What is NGN
Next Generation Network (NGN) is a service-oriented network.
Through the separation of service and call control, as well as
call control and bearer, the service-independent architecture is
implemented, which makes services independent of network.
NGN is a kind of open and integrated network architecture.
NGN is a kind of brand-new network integrating voice, data, fax,
and video services.
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Characteristics of NGNCharacteristics of NGN
Characteristics of Next Generation Network:
Open and distributed network architecture
NGN adopts the hierarchical architecture, which is divided into
media access layer, transport layer, control layer and
service/application layer.
Independent network control layer
Internetworking and gateways
NGN is based on standard protocols and packet switching network.
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ArchitectureArchitecture
Edge Access
Core Switch
Network Control
Service Management
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NGN Network Architecture NGN Network Architecture
IAD AMG
BroadBandAccess
UMG
PLMN/3G
SG TMG
PSTN
UMG
Service Management
Packet Core Network
Network Control
Core Switching
Edge Access
SoftSwitch SoftSwitch
iOSSPolicyServer
ApplicationServer
SCPLocationServer
RADIUSServer
MRS
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SoftSwitchSoftSwitch SoftSwitchSoftSwitch
NGN- Control LayerNGN- Control Layer
3G AccessAMGIADBroadband Access
PSTNPSTNTMG
SG
PLMNPLMN
IP Core Network
UMG
UMG
Call control path
Talking Path
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NGN- Core Switching LayerNGN- Core Switching Layer
Core Switching IP Core Network
SS RR
LANSWITCH
BEIJING
SHENZHEN
New York
Paris
bigsmall
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Core Switching Layer
Edge Access 3G AccessAMGIADBroadband Access
PSTNPSTNTMG
SG
PLMNPLMN
IP Core Network
UMG
UMG
NGN- Edge Access LayerNGN- Edge Access Layer
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SignalingModule
Trunk Module UserAccess Module
Service ServerSoftSwitch
TrunkGateway
TrunkGateway
TrunkGateway
SS7SignalingGateway
Contrast between PSTN and NGN
User AccessGateway
CPU
Switching Array
Intelligent Service Server
IP Core
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NGN using standard protocol
ISUP
IN OSSPARLAY/SIP
SNMP/MMLAppServer
SG
PSTN
switchSTP
Packet Core Network
TMG
PLMN
MGW
Soft-phone
SIP/H.323
SIP-T/BICC/H.323Softswitch
IADAMG
H.248/MGCP
TRIP
Location Server
H.248M2UA/SCTP H.248
Softswitch
MRS
MGCP/H248/SIPINAP
M3UA/SCTP
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Course ContentsCourse Contents
About NGN
U-SYS System Description
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Introduction Introduction
As a SoftSwitch product, SoftX3000 is located at the core cont
rol layer of NGN scheme.
SoftX3000 acts as a generic Call Controller in the packet-switc
hed network, supports the interworking between PSTN, H.323,
SIP, and MGCP domains.
SoftX3000 provides H.248 and MGCP based bearer control.
In the NGN solution of Huawei, SoftX3000 acts as the core of N
GN, interworking with other NGN components through the ope
n network adopting distributed standard protocols.
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U-SYS Network ArchitectureU-SYS Network Architecture
Service Layer
Control Layer
Core Switch Layer
Access Layer
SoftX3000SoftX3000
3G AccessAMG5000IAD系列Broadband
AccessPSTNPSTN TMG8010
SG7000
PLMNPLMN
SoftX3000SoftX3000
IP Core Video GW
UMG8900
UMG8900
SIP/H.323 Phone
U-Path
U-NICAU-NICAApp ServerApp Server
Policy Policy ServerServer MRS6000MRS6000ININ
OSSOSSiManageriManagerN2000N2000
LocationLocationServerServer
PSTN
switchSTP
Open Eye2G
Terminal3G
Terminal
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Networking and Application
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Packet Multimedia End Office Packet Multimedia End Office
OpenEye
AMG5000
U-Path
POTS
POTS PC
Centralized Subscriber Access Scheme
xDSL IAD IAD
PCPOTS POTS POTS
Distributed Subscriber Access Scheme
SoftX3000(end office)
MGCP/H.248SIP/H.323
MGCP/H.248MGCP/H.248
TMG
ISUP trunk SIP/SIP-T trunkPSTN / PLMN
OtherSoftSwitch
network
SIPPhone
H.323Phone
MGCP/H.248Phone
Individual Subscriber Access Scheme
MAN
MCUMRS
MGCP H.323
Private protocol
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Packet Tandem Office
xDSL
SIP trunk
SoftX3000(tandem office)
Backbonenetwork
SIP trunk
SIP/ENUM/TRIP
SoftSwitch(end office A)
SoftSwitch(end office B)
MAN A MAN B
SIPPhone
OpenEye
H.323Phone
MGCP/H.248Phone
Subscriber access of the office B
AMG5000
POTS
POTS PC
Subscriber access of the office A
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C5 Office (End Office)
SoftX3000
IP MAN
RSP device
UMG8900 UMG8900
POTS POTS POTS POTS
H.248
E1
H.248/V5UA
V5 access device
ONU
BSC
PBX and NAS
V5 V5 PRI/R2 PRI
NASPRX
H.248/IUA
UMG8900
RSP
ISDN ISDN
TMG8010/UMG8900
H.248/M2UA
ISUP trunk
C4 office
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C4 Office (Tandem Office) C4 Office (Tandem Office)
SoftX3000
IP MAN/backbone
TMG8010/UMG8900
C5 office C5 office C5 office
SS7 signalingnetwork
SG7000
Other C4 officeor toll office
M3UA
MTP
MTP
MTP
H.248/M2UA
ISUP trunk
ISUP trunkISUP trunkISUP trunk
H.248/M2UA
TMG8010/UMG8900
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Interworking with H.323 Network Interworking with H.323 Network
SoftX3000
SIP Phone H.323 Phone
H.323 trunk
GK
Backbonenetwork
H.323 trunk
H.323 Phone H.323 GW
H.323networkMAN
AMG TMG
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Interworking with IN Interworking with IN
SIPPhone
H.323Phone
SoftX3000
MTP
MAN
SS7 signalingnetwork
SCP
SG7000
IP backbonenetwork
MTP
M3UA M3UA
MTP
M3UA
AMG TMG
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Interworking with SIP Network Interworking with SIP Network
SIPApplication
Server
R
WMC SMCWWW Server Store Server
SIP
SoftX3000
SIPPhone
H.323Phone
MAN
AMG TMG
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Interworking with Parlay Gateway Interworking with Parlay Gateway
ParlayGateway
R
WMC SMCWWW Server Store Server
INAP/SIP
SoftX3000
SIPPhone
H.323Phone
MAN
AMG TMG
Firewall
Parlay APIParlay API
3rd AS3rd AS3rd AS 3rd AS
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Integrating of Fixed network and Mobile network
SoftX3000
IN
App serveriOSS
TMG8010
PSTN
SG7000
SS7 Link
E1/SDH
SS7 Link
3G Terminal
3G RAN
UMG8900
3G Core Network Application
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Commercial NGN of the Company S Commercial NGN of the Company S
MRS6000
SoftX3000
FECentral office
S2403
SCP
iManager N2000
PSTNE1
S3526
FE
FE
Billing Center
IP backbone network
FEFEFE
Access in cities
Access network in the city A
SIPPhone
H.323Phone
S2008
POTS POTS
IAD
PSTN ISUP
TMG8010
PSTNISUP
TMG8010
Access network in the city B
SIPPhone
H.323Phone
POTS POTS
IAD
S2008
SG7000
MTP
TMG8010
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Commercial VoIP Network of the Country B Commercial VoIP Network of the Country B
TELLINSoftX3000 SoftX3000 iManager N2000
UMG8900
POTS
RSP
ISDN POTS
RSP
ISDN
UMG8900
POTS
RSP
ISDN POTS
PBX
POTS
E1 E1 E1 E1
IP core network
Central office equipment
Access equipment
Centraloffice A
Centraloffice B
GE GE
S3526S3526POS
MRS6000
PSTN
UMG8900
E1
E1
UMG8900
MRS6000
FEFE FE FE FE FE
POS
POSPOS
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Evolution from PSTN to NGNEvolution from PSTN to NGN
Tandem /toll exchange
LE
Packet core network
Trunk gateway
LE
Soft switch
Core switch
Call control
IN NMS App Server Policy Service
ISUP SG
PSTN
switch
STPTMG
PLMN
WMG
SIPPhone
H.323Phone
PCPhone
IADAMG
Packet core network
Soft switchSoft switch
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SummarySummary
NGN is divided into four layers: access layer, transport layer, contr
ol layer and service layer.
NGN is the four-layer hierarchical network based on packet switchi
ng and transmission. Interworking between different layers is realiz
ed via open standard protocols, which provides NGN with consider
able advantages and flexibility.
Located at the control layer of NGN, SoftX3000 is the core control e
quipment in NGN for information interchange. It is used to control t
he communication of various MGWs.
The transmission and interchange of information streams between
MGWs do not fall into the control of SoftX3000. It is under the contr
ol of transport layer instead.
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