draft eecm523 note 8 - ngn
TRANSCRIPT
-
8/8/2019 Draft EECM523 Note 8 - NGN
1/23
Advanced Applied Telecommunication
Systems (EECM523)
Draft Note 8 Next Generation Network(NGN)
ByCheah Cheng Lai
-
8/8/2019 Draft EECM523 Note 8 - NGN
2/23
1. Introduction
-
8/8/2019 Draft EECM523 Note 8 - NGN
3/23
What is NGN
Next generation networking (NGN) is a broad term todescribe some key architectural evolutions intelecommunication core and access networks that will bedeployed over the next 510 years.
The general idea behind NGN is that one networktransports all information and services (voice, data, andall sorts of media such as video) by encapsulating theseinto packets, like it is on the Internet.
NGNs are commonly built around the Internet Protocol,and therefore the term "all-IP" is also sometimes used todescribe the transformation toward NGN.
3Source: Wikipedia (4 Mar 2010)
-
8/8/2019 Draft EECM523 Note 8 - NGN
4/23
Central Theme of NGN - Convergence
As the current services are supported by multiplenetworks, one of the major task toward NGN is
convergence . How the convergence may take place is depending
on the nature of the network operators, for examples
Fixed telephone operator convergence of PSTN and IPnetworks.
Mobile telephone operation convergence of GSM and IP
network.
-
8/8/2019 Draft EECM523 Note 8 - NGN
5/23
Why Convergence?
The primary driver is cost reduction!
1. Packet switching is more efficient than circuit switching thus supporting more traffic and more users.
2. Continuing reduction in the cost of electronic for packet-switching based electronics.
3. Support VoIP bypassing normal toll operation.4. Improved productivity, from both operations and the ICT
staff by administrating only a single network.5. Application As we have only a single network, many new
applications can be easily deployed with the fasterdeployment cycle to the end user.
-
8/8/2019 Draft EECM523 Note 8 - NGN
6/23
Network and service convergence
Network convergence - the efficient coexistence of telephone, video and data communication within a
single network. The use of multiple communicationmodes in a single network offers convenience andflexibility not possible with separate infrastructures.
Network convergence is also called mediaconvergence.
Service/device convergence new devices are ableto supports many different services.
6
-
8/8/2019 Draft EECM523 Note 8 - NGN
7/23
2. ITU-T Recommendation for NGN
-
8/8/2019 Draft EECM523 Note 8 - NGN
8/23
Definition of NGN: Y.2001
ITUITU--T SG 13: Rec. Y.2001T SG 13: Rec. Y.2001
A NGNNGN is a packetpacket- -based networkbased network able to provide
telecommunication services and able to make use of multiplemultiplebroadband,broadband, QoSQoS--enabled transport technologiesenabled transport technologies and in whichserviceservice--related functionsrelated functions are independentindependent from underlying
transporttransport- -related technologiesrelated technologies . It enables unfettered accessunfettered access forusers to networks and to competing service providers and/orservices of their choice. It supports generalized mobilitygeneralized mobility whichwill allow consistent and ubiquitous provision of services tousers.
-
8/8/2019 Draft EECM523 Note 8 - NGN
9/23
AccessIndependent
(CoreTransport)Network
Service/Network
ControlPlatform
Application
Multi-layer Service Edge
PresenceQoS/TrafficControl
RADIUS
SIP
SingleSign-On Server
AccountingMulti-point
video-conference
Home Agent
Certification Authority
NWdefense
HGWmanagement
ONUONU
Service Node
ADSL modem
Core Node
MCWDMDSLAM
MC
MC
MC
Distribution Function
BusinessUser
HGW
OLT
V-ONU
HE
V-OLT
VisualSystem
Mass User
OtherNetwork
GWPSTN
Community CollaborationCommunity Collaboration ContentsContents CommerceCommerce
Ubiquitous Network User
Network
Access
DependentNetwork BS
RMC
MSC
Transportstratum
Servicestratum
GW
GW
Wireline AccessRAN HE: Head endMSC: Mobile Switching
CenterRMC: Radio Media
ConverterBS: Base StationDSLAM: Digital Subscriber
Access ModuleOLT: Optical Line TerminalONU: Optical Network UnitMC: Media Converter
NNI
UNI
Example of NGN Realization
Chae-Sub, LEE - Chairman of FG NGN - NGN Technical Workshop 14 ~ 15 March 2005, Jeju, Korea
-
8/8/2019 Draft EECM523 Note 8 - NGN
10/23
3. Convergence for Fixed TelephoneNetworks
-
8/8/2019 Draft EECM523 Note 8 - NGN
11/23
The First Step of Convergence for FixedTelephone Network is VoIP
The challenge of VoIP is to provide the efficiency of a packet-switched network while providing the similar voice quality of a circuit-switched network.
TDMCircuit
SwitchedNetwork
IP PacketSwitchedNetwork
NGNVoice / Data / Multimedia
Provide adequate voicequality
Inefficient use of networkbandwidth
Much more efficient
The quality is an issue
-
8/8/2019 Draft EECM523 Note 8 - NGN
12/23
The Legacy Network (Example)
TDM Time division multiplexing
Kuala Lumpur
TDMnetwork
Penang
Johor Baru
KuantanPSTNSwitch / Exchange
PSTNSwitch / Exchange
PSTNSwitch / Exchange
PSTNSwitch / Exchange
-
8/8/2019 Draft EECM523 Note 8 - NGN
13/23
The Converged IP Network (Example)
Kuala Lumpur
IPnetwork
Penang
Johor Baru
Kuantan
Media Gateway
Media Gateway
Media Gateway
Media Gateway
Softswitch(Media Gateway Controller)
Direct replacement of PSTN switch with media gateway and adding of soft-switch.
-
8/8/2019 Draft EECM523 Note 8 - NGN
14/23
Next Step - Adding New Services
Kuala Lumpur
IPnetwork
Penang
Johor Baru
Kuantan
Media Gateway
Media Gateway
Media Gateway
Media Gateway
Softswitch
SIPApplication
Servers
SIPSIP
SIP Phone
SIP
SIP Phone
SIP SIP Sessioninitiation protocol
Benefit: 1) New services can be added easily2) Faster deployment cycle for new services.
-
8/8/2019 Draft EECM523 Note 8 - NGN
15/23
4. Convergence for MobileTelephone Networks
-
8/8/2019 Draft EECM523 Note 8 - NGN
16/23
3GPP defining migration from GSM to UMTS (W-CDMA) Core network evolves from GSM-only to support GSM,
GPRS and new W-CDMA facilities
3GPP Release 99 (2000) Adds 3G radios3GPP Release 4 (2001) Adds all IP- Core Network3GPP Release 5 (2002)
First IP Multimedia Services (IMS) and HSDPA3GPP Release 6 (2004) Add HSUPA and MBMS - media
The similar convergence approach for fixednetworks is also happen for mobile networks
Source: Sum, Tan, Yap, Chan, Lee and Thi, Group 4 Presentation Slides
-
8/8/2019 Draft EECM523 Note 8 - NGN
17/23
-
8/8/2019 Draft EECM523 Note 8 - NGN
18/23
-
8/8/2019 Draft EECM523 Note 8 - NGN
19/23
IMS For operator to deliver new data services over the packet switching domain.
-
8/8/2019 Draft EECM523 Note 8 - NGN
20/23
3G Partnership Project (3GPP)3GPP Release 4 (2001)
Adds all IP- Core Network3GPP Release 5 (2002) First IP Multimedia Services (IMS) and HSDPA
3GPP Release 6 (2004) Integrates WLAN, adds HSUPA and MBMS.3GPP Release 7 Effort to provide better QoS (lower lattency, jitter). Adds
voice call continuity (VCC), additional fixed/mobileconvergence (FMC) features, and HSDPA+.
How about the Future?
-
8/8/2019 Draft EECM523 Note 8 - NGN
21/23
Acronyms
FMC Fixed/Mobile Convergence GigE Gigabit Ethernet HSDPA High-Speed Downlink Packet Access HSUPA High-Speed Uplink Packet Access IMS IP Multimedia Services MBMS - Multimedia Broadcast Multicast Service
NGN Next Generation Network QoS Quality of Service SIP - Session initiation protocol UMTS Universal Mobile Telecommunications System VCC Voice Call Continuity VoIP Voice over IP W-CDMA Wideband CDMA
-
8/8/2019 Draft EECM523 Note 8 - NGN
22/23
Announcements
No class on next Tuesday and Thursday (9 & 11 Mar 2010). The Group 6 presentation (FTTH) shall be remained on next
Friday (12 Mar 2010).
22
Date Topic
22-1-2010(Friday)
9.00 to 9.20 am Group 1 (RFID)9.30 to 9.50 am Group 2 (ZigBee)
9-2-2010(Tuesday)
9.00 to 9.20 am Group 3 (Bluetooth)9.30 to 9.50 am Group 4 (WiFi)
12-2-2010
(Friday)
9.00 to 9.20 am Group 5 (WiMAX)
9.30 to 9.50 am Group 8 (BPL)5-3-2010(Friday)
9.00 to 9.20 am Group 9 (xDSL)9.30 to 9.50 am Group 11 (DWDM)
12-3-2010(Friday) 9.00 to 9.20 am Group 6 (FTTH)
-
8/8/2019 Draft EECM523 Note 8 - NGN
23/23
Thank you