1. PTCL Training & Development
NGN Architecture/Layer description and NGN Trends
PTCL Training & Development

2. NGN Architecture Characteristics of Next Generation Network:
NGN is designed with an open network framework.
NGN adopts the hierarchical architecture, which is divided into media access layer, transport layer, control layer and service/application layer.
NGN is based on standard protocols and packet switching network.

3. NGN Hierarchical Architecture
Service/Application Layer
Service Management
Control Layer
Network Control
Transport Layer
Core Switch
Edge Access
Media Access Layer

4. Access Layer
Interworks between Core Packet Transport layer and various existing communication networks.
Provides access of various communication terminals such as analog phone, SIP Phone, PC Phone visual terminal and intelligent terminals to the Core Packet Transport layer via various access gateways

5. Core Transport Layer
The packet switching network composed of backbone transmission equipments such as IP router or broadband ATM switch as the bearer basis of the softswitch system.

6. NGN Control Layer
The control Layer combines the equipment that manages signaling and call control progress.
The control handles the call setup and controls the media gateways.
Major components at this layer are the soft-switches.

7. Application Layer
Layer with various applications and services such as client oriented integrated intelligent services and service customization.

8. NGN Network Architecture
IAD
AMG
BroadBand
Access
UMG
PLMN/3G SG
TMG
PSTN
Packet Core Network
Soft Switch
iOSS
Policy
Server
Application
SCP
Location
RADIUS
MRS
Service Management
Network Control
Core Switching
Edge Access
iOSS: Intelligent network management system, SCP: Service Control Point , MRS: Media Resource Server, IAD: Integrate Access Device, AMG: Access Media Gateway, TMG: Trunk Media Gateway, UMG: Universal Media Gateway, RADIUS: Remote Authentication Dial-In-User Services

9. Huawei U-SYS Network Architecture
Service Layer
Control Layer
Core Switch Layer
Access Layer
SoftX3000
3G Access
AMG5000
IAD
Broadband Access
PSTN
UMG8900
SG7000
PLMN
IP Core
Video GW
SIP/H.323
Phone
U-Path
ENIP
Policy Server
MRS6100 IN
OSS
iManager
N2000
Location
Server
switch
STP
Open Eye 2G
Terminal 3G

10. ZTE NGN Architecture Core Packet Network Softswitch TG SG NAS AG IAD
Router Server
SCP
AAA Server
Application
Server
Policy Server
Service
ZXUP10 APP
Softswitch
Control
ZXSS10 SS1
IP Router/ATM switch
Core Packet Network
Core
Transport
ZXSS10 S100 TG
ZXSS10 M100
ZXSS10 A200
ZXSS10 IAD Series SG
NAS
H323 GW AG
IP PBX
MSAG
IAD
WAG
Access
Wireless
SS7 Network
PSTN/ISDN
Broadband
Access
NAS: Network Access Server
WAG: Wireless Access Gateway
MSAG: Multi Service Access Gateway
AG: Access Gateway

11. PSTN Access IP Core PSTN TG SG Softswitch APP NMS
APP: APP Server: Application Server, TG: Trunk gateway
SG: Signaling Gateway, NMS: Network Management system

12. PSTN-IP Toll Traffic Splitting Solution
Control Stream
Media Stream
IP Connection
TDM Bearer Network TG
IP Bearer Network SG
CityA PSTN
CityB PSTN LS MS
LSTP TS
HSTP
SIP-T
TDM Connection
Softswitch Control Device
Signaling gateway
FE/GE
Signalling Gateway
TS: Tandem Switch, HSTP: High Speed Transfer Protocol, TG: Trunk Gateway, MS: Main Switching centre
LS: Local Switch, SIP-T: Session Initiation Protocol for Telephone, FE/GE: Fast Ethernet Giga Ethernet

13. Next Generation Network -Future
NMS
ENIP
APP Server
3rd Party
Convergence
Broadband
Intelligence
Softswitch
User Profile Center
Signaling GW
Resource Manager
Resource Manager
SS7/TDM
Multi Service Edge Route
IP Core Network
PSTN
Multi Service Edge Route
Metro Optical Backhaul
SS7/V5.2/TDM
Media GW
XDSL/LAN/POTS
MSAN
LAN
IAD AP AP
Softphone
Internet
Softphone
IPTV
POTS
SIP Phone
SipPhone
POTS
FMC
Residential Enterprise Mobile Scenario
ENIP: Enhanced Network Intelligent Platform, NMS: Network Management system, AP: Access Point
MSAN: Multi Service Access Node, FMC: Fixed Mobile Convergence, MG: Media Gateway

14. Convergence-oriented
NMS
Centralized user profile center and application layer for service convergence and fast service deployment
ENIP
Softswitch
User Profile Center
Convergence
Shared converged IP network for voice, data and mobile
IP Core Network
Metro Optical Backhaul
XDSL/LAN/POTS
MSAN
LAN
Unified multi-service access node for diversified services, decreasing the number of access node, AP
IAD AP
Softphone
Softphone
Internet
SIP Phone
IPTV
SipPhone
POTS
POTS
FMC
Enterprise
Residential
From multi-network to multi-service Network

15. From Narrowband to Broadband
Broadband-oriented
NMS
ENIP
Softswitch
User Profile Center
Constructing high QoS network with large bandwidth
IP Core Network
Broadband
Metro Optical Backhaul
Broadband
XDSL/LAN/POTS
Introduce various broadband access methods to support broadband service deployment
MSAN
LAN AP
IAD AP
Softphone
SIP Phone
Softphone
Internet
IPTV
SipPhone
POTS
POTS
FMC
Residential
Enterprise
From Narrowband to Broadband

16. Intelligence-oriented
Centralized user profile center, session control and application layer
Bring intelligence to whole network
Support fast unified service deployment
NMS
ENIP
APP Server
3rd Party
Intelligence
Softswitch
User Profile Center
IP Core Network
Metro Optical Backhaul
Broadband
XDSL/LAN/POTS
LAN
MSAN AP
IAD AP
Softphone
Softphone
SIP Phone
Internet
IPTV
SipPhone
POTS
POTS
Residential
Enterprise
From Intelligent Network to Network Intelligence