AA000002 NGN DescriptionISSUE 3.0

Fixed Network Curriculum Development Section

Course Contents

About NGN U-SYS System Description

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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.3

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Security Level: Internal

Characteristics of NGNCharacteristics 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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Architecture

Service Management

Network Control Core Switch

Edge Access

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NGN Network Architecture

iOSS

Policy Server

Application Server

Location Server

RADIUS Server

MRS

SCP

Service Management

Network Control

SoftSwitch

SoftSwitch

Core Switching

Packet Core Network

Edge Access

IAD

AMG Access

SG

TMG PSTN

UMG

UMG PLMN/3G 6

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Security Level: Internal

NGNControl Layer

SoftSwitchCall control path

SoftSwitch

IP Core NetworkTalking PathIAD AMG SG UMG

Broadband Access

3G Access

PSTN

TMG

UMG

PLMN

7Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

NGNCore Switching Layer

LANSWITCH

small

big

Core Switching

IP Core NetworkS

R

BEIJING

New York Paris SHENZHEN8Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

NGNEdge Access Layer

Core Switching Layer

IP Core Network

Edge Access

Broadband Access

IAD

AMG SG

UMG

3G Access

PSTN

TMG

UMG

PLMN

9Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

Contrast between PSTN and NGNIntelligent Service Server

SoftSwitch

CPU

Service Server

Switching Array

IP Core

Signaling Module SS7 Signaling Gateway

Trunk Module

User Access Module

Trunk Gateway Trunk Gateway Trunk Confidential Information of Huawei. Gateway No Spreading without Permission.Security Level: Internal

User Access Gateway

10

NGN using standard protocolIN Location Server TRIP

MRS

OSS SNMP/MML

AppServer PARLAY/ SIP

INAP

MGCP/H248/SIP SIP-T/BICC/H.323 Softswitch

M3UA/SCTP

Softswitch

SG ISUP

H.248 M2UA/SCTP

Packet Core Network

H.248

H.248/MGCP STP switch PSTN AMG IAD TMG SIP/ H.323

MGWPLMN

Soft-phone

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Course Contents

About NGN

U-SYS System Description

12Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

Introduction

As a SoftSwitch product, SoftX3000 is located at the core control layer of NGN scheme.

SoftX3000 acts as a generic Call Controller in the packetswitched 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 NGN, interworking with other NGN components through the open network adopting distributed standard protocols.

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U-SYS Network Architecture

Service Layer

iManager N2000

OSS

Location Server

Policy Server

U-NICA App Server

IN

MRS6000

Control Layer

SoftX3000

SoftX3000Video GW

Core Switch LayerIAD AMG5000 Broadband Access

IP Core

UMG8900 3G Access SG7000

Access Layer

PSTN

TMG8010

UMG8900

PLMN

STP

switch

PSTN

SIP/H.323 U-Path Open Eye Phone

2G Terminal

3G Terminal 14

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Security Level: Internal

Networking and Application

15Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

Packet multimedia end officeDNS/ OSS SoftX3000 (End office) MCUMGCP PSTN / PLMN ISUP trunk TMG8010/ UMG8900 IP H.323 SIP/SIP-T trunk

MRS

SMC

Other NGNs

CMTSHFC network NCS EMTA

MGCP/H.248

MGCP/H.248

SIP/H.323

POTS

AMG5000 U-Path xDSL

Eudemon IAD IAD

SIP OpenEye IP private H.323 network OpenEye VP8220

POTS

SIP video terminal

POTS

PC

POTS

POTS

POTS

PC Multimedia subscriber access mode

Corporate subscriber access mode

Decentralized subscriber access mode

16Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

C5 Office (End Office)SoftX3000

IP MAN

H.248/M2UA TMG8010/ UMG8900

ISUP trunk

C4 office

H.248

H.248/V5UA

H.248/IUA

UMG8900E1 V5

UMG8900V5 PRI/R2

UMG8900PRI

RSP

ONU

PBX

NAS

POTS

ISDN

POTS

ISDN

BSC

POTS

POTS

RSP device

V5 access device

PBX and NAS

17

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Security Level: Internal

C4 Office (Tandem Office)SoftX3000

IP MAN/Backbone network M3UA SS7 signaling network

H.248/ M2UATMG8010/ UMG8900

ISUP trunkOther C4 office or toll office

MTP

SG7000

H.248/ M2UA TMG8010/ UMG8900

MTP

ISUP trunk

ISUP trunk

ISUP trunk

C5 office

C5 office

C5 office

18Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

Inter-working with H.323 Network

SoftX3000

GK

MAN

H.323 trunk

Backbone network

H.323 trunk

H.323 network

SIP Phone AMG TMG

H.323 Phone

H.323 Phone

H.323 GW

19Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

Inter-working with INSS7 signaling network MTP SG7000 M3UA M3UA SoftX3000 INAP over IP IP backbone network INAP over IP MTP

M3UA SCP

MAN

SIP Phone AMG TMG

H.323 Phone

20Security Level: Internal

Confidential Information of Huawei. No Spreading without Permission.

Inter-working with 3G multimedia networkVIG SoftX3000

RAS/Q.931/H.245 H.248 UMTS H.324 UMG8900 UMG8900 NGN core network H.323 video terminal

H.324 video terminal

RAS H.323 network

Q.931/H.245

GKConfidential Information of Huawei. No Spreading without Permission.

H.323 video terminal21Security Level: Internal

Interworking with SIP NetworkR

WMC

WWW Server

SMC

Store Server

SIP Application Server SIP

SoftX3000

MAN

AMG

TMG

SIP Phone

H.323 Phone

22Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

Interworking with Parlay Gateway3rd AS 3rd AS 3rd AS Parlay API Firewall 3rd AS

Parlay API

R

WMC

WWW Server

Parlay Gateway INAP/SIP

SMC

Store Server

SoftX3000

MAN

AMG

TMG

SIP Phone

H.323 Phone

23

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Security Level: Internal

Smart NetworkAIP APP Server SCP MRS

IN service center

INAP/SIP SHLR SHLR

Subscriber data center

MAP

SoftX3000

SoftX3000

Service switching center

UMG8900

UMG8900

LE

LE

LE

LE

LE

LE

End office layer of local network

24

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Security Level: Internal

Static dual-homing networkingService management layerNMS MRS SCP

Active SoftX3000

Standby SoftX3000

IP network

PSTN UMG

IAD

AMG

UMG

Packet terminal

Subscriber access layerConfidential Information of Huawei. No Spreading without Permission. Security Level: Internal

25

Active/standby dynamic dual-homing networkingLegend Active SoftX3000 Standby SoftX3000 Heartbeat link Primary signaling channel Secondary signaling channel UMG_A

IP packet networkUMG_B

PSTN

IAD

AMG

UMG

Packet terminal

Access layer of local network26Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

Load Sharing Dynamic Dual-homing NetworkingLegend SoftX3000 (office A) SoftX3000 (office B)Heartbeat link Primary signaling channel Secondary signaling channel

TMG_A IP packet network TMG_B PSTN

IAD

AMG

UMG

Packet terminal

IAD

AMG

UMG

Packet terminal

Accessed by office A

Accessed by office B27

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Security Level: Internal

Networking model of company Ds commercial NGNiManager N2000 MRS6000 SoftX3000 Application server MCU TMG8010 E1 PSTN

3026

3026

Equipment in the central office

FE

3026

IP MAN FE Access devices 3026 U-PATH 3026 FE 3026 3026 Telecom Intranet AMG5000 AMG5000 Firewall

Fax

POTS

ephone

Video Internet accessSoftPhone

WLAN Video terminal terminal

AMG access

UniPhone

Message Video terminal conference IAD access terminal

U-PATH console

28

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Security Level: Internal

Evolution from PSTN to NGNSoft switch Tandem /toll exchange Packet core network Call control Core switch Trunk gateway LE LE

IN

NMS

App Server

Policy Service

Soft switch

Soft switch

ISUPSTP

SG

Packet core networkWMG AMG IAD PC SIP H.323 Phone Phone Phone

TMGswitch

PSTN

PLMN29

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Security Level: Internal

Summary

NGN is divided into four layers: access layer, transport layer, control layer and service layer.

NGN is the four-layer hierarchical network based on packet switching and transmission. Interworking between different layers is realized via open standard protocols, which provides NGN with

considerable advantages and flexibility.

Located at the control layer of NGN, SoftX3000 is the core control equipment in NGN for information interchange. It is used to control the 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 control of transport layer instead.30

Confidential Information of Huawei. No Spreading without Permission.

Security Level: Internal

31Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal