Convergence in NGN

Convergence in NGN

ANACOM NGN Workshop 9-10 October

Alexandre CoelhoIP/IMS Solution Manager

© Ericsson AB 2006 Ericsson Confidential ANACOM NGN Workshop 2006-09-102

Agenda

The Fixed Voice Service EvolutionThe Fixed Voice Service Evolution

The Multi-Access EvolutionThe Multi-Access Evolution

The “Inter” Network The “Inter” Network

Summary and Where are We ?Summary and Where are We ?

Convergence OverviewConvergence Overview

The Convergence in StandardsThe Convergence in Standards


Agenda

The Fixed Voice Service Evolution The Fixed Voice Service Evolution







Defining Convergence

Industry Convergence– Telecom / IS/IT / Media / Broadcasting– Common operations & processes– One Company approach

One brandOne customer interfaceBundled offerings

IndustryNeeds

End-UserNeeds

Device Convergence– Terminals operating over different accesses– Multimedia terminals

Service Convergence– Seamless multi-media services over different access

Network Convergence– Common session control network– Common service network


Single mailbox Bundling/

Triple playWLAN/2G/3G

Multi access mobile phone (UMA)

Single phone

number

ConvergenceIt is happening today

Layered architectureIMS

The telecoms industry has entered a new era of increased competitiveness, new business models and important technology shifts

Convergence is one important driver of this ongoing change.

source Ericsson plus ”Fixed-Mobile Convergence reality check”, Heavy Reading Vol 2 No 26 Dec 2004


Industry transformation Convergence (from 1997)

Telecom Industry

main frames

desk top computing

PC-LANPC-WAN

Intranet/Internet

electronicpublishing and entertainment

Computer Industry

Media Industry

Next

battle ground

The ConvergedIndustry

Wireline

mobilityWireless/Cellular

PSTNPTN

ISDN

PC/Servers

NewTelecomsIndustry

3G/Wireless Internet

Carrier class

MMM

WWW

WAP Personal(Mobile)

Multi-mediaservices


Convergence of the IndustryExample: US “Battleground”

• Communication Revenues

etc…

Internet

Wireline W

ireless

Brand-name ex. etc…

Flat-Fee VoIP ex. etc…

Cable

• Content Distribution Revenues• Advertising Revenues


Operator RolesBusiness Models for P-2-P, C-2-P, Consumer / Enterprise

Channel ProviderWalled Garden

Intelligent

Bit-Pipe

Residential Residential Enterprise Enterprise

Mobile Mobile

content &applications

“proprietary”service layer (SL)

own &3rd party content& applications

open controlled SL

3rd party content& applications

3rd party “SL”

ServiceProvider

NetworkProvider

OperatorDump

Bit-Pipe3rd party content& applications

3rd party “SL”

Connectivity with IMS ControlConnectivityConnectivity Connectivity

without IMS Control


Horizontal Efficiency is Driven by: Standards, Technology, Operators, Business Models, …


• Mobility• Radio resource

management• QoS• Roaming• Privacy/Security

Mobility

Mobile Networks

Computer access

• Mobility• Wide area coverage• QoS• Circuit & packet switched• Intelligence in network

• High speed• Access only• Packet switched• Best effort• Intelligence in device• “Fixed connection”• Very high data volumes

Mobile Operators

“Fixed” Operators

• Full mobility• Seamless coverage• Global roaming

• Nomadic mobility• Localized coverage

Data rates

Value of mobility &everywherecoverage

The data from two worlds Challenges

WiFi

• Data rates• Latencies• IP optimizations

WiMAX LOS

WiMAX NLOS


The mobile phone or personal device Embraces and connects product after product

”Always with you”

Personal Communications & Content center:

Voice, SMS, MMS, e-mail, etc

Communication, Entertainment,Transaction & Navigation center

Fixed phoneRemote Control

Fax, Pager

Portable radio

MP3 player/Walkman

TV reciever

Digital camera

Video camera

Memory stick

Game console

PDA/Web browser/RSS

Credit cards

GPS

Color Screens

Broadband AccessVideo Player

Etc …


ACCESS

• CPE Hardware • Shared Internet Access• Variable access• Shared resources (Printers)• Any device (PC, laptop,

mobile at any location)

ADMINISTRATION

• Account administration• Equipment Configuration• Service Configuration • User Privileges• Usage Monitoring

SECURITY

• In-Home Monitoring, • Intrusion Detection• Remote Video Surveillance • Parental Controls • Access Control (Firewall)• Anti-Virus, SPAM control

APPLICATIONS

• Off-site storage• Electronic messaging • Presence • Calendar synchronization• Collaboration

ENTERTAINMENT

• IP TV• Interactive TV• Streaming music • Video on Demand• On-line Gaming

COMMUNICATIONS

• Wireless Telephony• Electronic Messaging• Instant Messaging• Intercom• Voice/Video Conferencing

The connected home or family devices


Agenda








GW

Access

Transport Network

Core Transport Network

Applications

Other N

etworks

3GPP IP CAN

GW

Based on 3GPP IMS

IP connectivity access networkand related functionality

Streaming Services(RTSP-based)

Network Access Attachment Functions

NASS

Resource and AdmissionControl Function

RACS

PSTN/ISDN Emulation

UserProfile

Functions

IP Multimedia Component(Core IMS)

NNI

UNI

TISPAN NGN R1Overview


ETSI/TISPAN NGN StandardizationOverview

TISPAN is responsible for all aspects of standardization for present and future converged networks, including the NGN (Next Generation Network) in ETSI.

TISPAN has decided to use IMS as base, and the additional specifications will be incorporated into 3GPP.

TISPAN NGN R1 specifications were released in late 2005.

New IP Multimedia Services – Real time conversational services (Voice, Video telephony..)

+ 10 -15 ISDN-like supplementary services– Emergency services– Supplementary Services– Services / Service enablers defined by 3GPP:

Messaging (Instant Messaging, MMS…)PresenceGroup management etc


IMS

TE MT UTRAN

SMS-SCEIRTE MT

BillingSystem*

R UmGERAN

WAG

Uu

HLR/AuC* HSS*

R

C

Wn Wp

Wu

WLANUE Ww

Intranet/Internet

WaWm

Wf

Iu

Gn

Gb, IuGf Gr

Gd

Ga

GiGn/Gp

Gc

SMS-GMSCSMS-IWMSC

WiOCS*

SGSN

SGSN

Note: * Elements duplicated for picture layout purposes only, they belong to the same logical entity in the architecture baseline.

** is a reference point currently missingTraffic and signallingSignalling

HLR/AuC*

3GPP AAAProxy

Ga Gy

CDF

CGF*

3GPP AAAServer

PCRF AFRx+ (Rx/Gq)

Gx+ (Go/Gx)

OCS*

UE

P-CSCFMw

Cx Dx

Wa

Wg

Gm

SLFHSS*

CSCF

MRFPIMS-MGW

Wo

D/GrDw

Mb

PDG

CGF*

WLAN AccessNetwork

Wx

MbGGSN

Wz

Wd

BM-SCGmb

Gi

MSC

Gs

PDN

**

BillingSystem*

Wf

Wy

3GPP release R7Logical architecture


IMS Stands for IP Multimedia Subsystem

IMS is a framework defined by 3GPP to realize new multimedia services for the mass-market

The core of IMS is a standard service control architecture basedon SIP signaling

SIP (Session Initiation Protocol) is the main control protocol and is standardized by the IETF

IMS is access network agnostic and access aware

There is no industry wide supported alternative or competing standard for IMS, It secures service interoperability

IMS is embraced by Tispan as a basis for NGN, by CableLabsand also by Wimax Forum and is one of the key parts in the evolution of the wireless and wireline communication

IMS includes device platform in the architecture

SIP

What is IMS?


IMSIs the Standard for Converging Networks

Mobile Mobile

IPIP

Enterprise Enterprise Residential/HFC Residential/HFC

PushPush--toto--TalkTalk

IMSIMSMessagingMessaging

Group &Group &List mgmtList mgmt

MultiMulti--mediamediaTelephonyTelephony PresencePresence

CombiningCombiningIMS and CSIMS and CS

voicevoice

Examples of that are the PoC-standard in OMA and

the Telephony standard in ETSI/Tispan, which both builds on the IMS standard

for basic reachability, security, presence etc.

A general trend is alsohorisontalization

of standards. i.e. a layered approach where the full vertical

solution of a service/application

is not done in one place.


PacketCableAlignment with 3GPP IMS Specs

Initial set of PacketCable 2.0 specifications adopt IMS R6CableLabs will participate within 3GPP to develop IMS R7Subsequent release of PacketCable 2.0 specifications has the goal to closely align with IMS R7

PacketCable

3GPP IMSR6 R7

D01 I01 I02

2.0 to align with R7

2.0 to adopt R6

Contributions

D01 = Draft Release 1I01 = Issued Release 1I02 = Issued Release 2


IMS NetworkEnables separate Access from Service

Commonenablers

Multi Access Edge & Control

IP tr

ansp

ort

IMS CoreIMS Core

. . . . App 1 App 2

GPRS/EDGE

WCDMAHSPA LTE DSL

Ethernet WLAN WiMAX ...

Non-IMSapplications


IMS NetworkTerminals the evolution dependency

Terminals Network

Commonenablers


IP tr

ansp

ort

IMS CoreIMS Core

. . . . App 1 App 2

GPRS/EDGE

WCDMAHSPA LTE DSL


Non-IMSapplications

Commonenablers


IMS CoreIMS Core

. . . . App 1 App 2

GPRS/EDGE

WCDMAHSPA LTE DSL


Non-IMSapplications


Importance of StandardsMarket Acceptance of Open GSM Standard with Interoperability

GSM networks on air: 626

GSM countries/territories on air in all continents: 198

GSM total subscribers: 1,35 Billion*

Global monthly SMSs: 36/user

GSM accounts for 75% of the world's digital mobile market and 74% of the world's wireless market*

Source GSM A and CellularOnline. December 2004 and May 2005*


Agenda








Evolution of wireline access

LaterNow Future

POTS-access only(3.1 kHz voice)

POTS-access + IP access (ADSL)

IP-access only(e.g. DSL, LAN, WLAN,…)

0

100 %

PSTNPSTNTele

Tele

RGW

TeleTele

RGWRGW

TeleTele

Dedicated access and network for telephony

Multiservice IP access and network used for Internet, telephony and other services


Full Z Full Z

PSTN @ IP network

SIP

RTP

PSTN/ISDN Simulation vs Emulation

TeSSoftSoftSwitchSwitch

MGW MGW

TeSSoftSoftSwitchSwitch

PSTN @ TDMMGW MGW

Z Z -- RTP

TeSAGCFAGCF

H.248

SIP

SIP SIP

Z Z --IP access &

network

SIP SIP

RTP RTP

RGW SIP SIP

RTP RTP

L

DSL CSCFCSCF

P2P Multimedia P2P Multimedia includingincludingSimulated telephonySimulated telephony serviceservice

P2PP2PMultiMulti--mediamedia

ASASSimulation

Softswitch PSTN Emulation

Tispan PSTN Emulation


FTTN vs FTTC vs FTTH

VDSL2

C P E

ONT-VDSL2

MSAN

Central local

Central local

OLT

Architecture Hibrid (FTTx / GPON)

Architecture FTTH• GPON• P2P

Architecture FTTN OLT

ONT

ONT

ONT

ONT-VDSL2

C P E


The MSAN Concept

GE

TDM V5.1/V5.2 TDM V5.1/V5.2

ATM/SDHATM/SDHVoice

Gateway

SDH/PDH

IP/GbEIP/GbE

E1 CES/IMA

SHDSL

Combo xDSL/POTS

GPON

aDSL2+VDSL2

STM-1 ATM

aDSL2/2+/VDSL2

3G

2G

GPON

HSDPA


CableLabsCableLabsCable MMCable MM

3GPP 3GPP MMTelMMTel

TispanTispan R2R2

TispanTispan R1R1

StandardizationMultimedia telephony

IMS VoIP(multimedia)

Basic set ofsupplementary

services

Emergencycall

QoScontrol

2005 2006

3GPP IMS 3GPP IMS standards developmentstandards development


Call/SessionControl


Service Network

PSTN IP Backbone

PLMN

GRX

WiMAX2/3G/

Evolved 3G

IPAccess Network

IPAccess Network

WLAN

BB

Network Architecture Evolution Overview

A-GW A-GW

MGWMGW

AN

BGW

RNC

BSC

TeS

IMS

MSC-S

USM Messaging ChargingB2B

Appl Content

Internet

BS

BS

BS


Agenda








Fixed Network

Local AreaNetwork (~50m)

Personal AreaNetwork (~20m)

Wide AreaNetwork (~10km)

New access technologies

DECT, PHS

Infra Red

WLAN

Bluetooth

2G/2.5GGSM, PDC

TDMA,CDMA

Analog Digital

1GAMPS, NMT,TACS, etc.

CT1

“wire”

Wideband/Broadband

POTS ISDNBroadband,

(xDSL/Cable/ Ethernet/WiMax)

SeamlessMulti-

Access &

CombinedDevices(ABC)

3G/3GEVWCDMA

(FDD/TDD)CDMA2000


802.20?

Bit rates and coverage Wireless Technologies

10 kbit/s

100 kbit/s

1 Mbit/s

10 Mbit/s

100 Mbit/s

1 Gbit/s

End-user bit rate

2G

3G

PAN(- 20 m)

LAN(- 100 m)

WAN(- 120 km)

Coverage

Super 3G

802.11b802.11g

Bluetooth

DECT

UWB Super 3G

MAN(- 3 km)

BluetoothEvolution WiMax

802.16 3G Evolved

DVB-H

RFID

W-LAN

DVB-T

Nomadic Local Area Full Mobility Wide AreaStationary Short range


3GPPCore Network

Iu ~R3 ~A10/M’S2

3GPP-style TISPAN-style

Common IMS

Multi-access Architecture EvolutionArchitecture Direction – Standardization Field

S2S1

UTRAN LTEI-WLANAccessNetwork

802.11AccessNetwork

xDSLAccessNetwork

FTTHAccessNetwork

DOCSISAccessNetwork

PacketCable’PBN’

DSLF’Core Network’

WiMaxF’Core Network’

Multi-access Edge functions(inter-access mobility, policy control, AAA, etc)

802.16AccessNetwork


System Architecture Evolution (R8)

LTE RAN

MobilityMgmt

Inter-Access SystemAnchor & User PlaneEntity

IASAUPE

PCRF

Servicenetwork

NodeBNon-3GPP

Access Network

3GPP System Architecture EvolutionIntroducing the seamless mobility

HSPA

GGSN

CurrentArchitecture (R6)

PCRF

RNC

NodeB

SGSN

Servicenetwork

SGSN

HSPA

Mobile BroadbandOptimization (R7)

PCRF

Servicenetwork

GGSN

RNC

NodeB

HSPA

SGSN

NodeB

RNC


Content &Applications

WRAN

WLAN

GERAN

C-RAN

BB Access Access Networks

BackboneTransmission

IP NetworkC

PE &

Res

iden

tial

Net

wor

ks

Mob

ile T

erm

inal

s

AccessService

IMS & otherservice enablers

ChargingControl

B2B Control

Traffic & AccessControl

User &Service

Management

3GPP CSPOTS

TransportAccessTransmission

Application Service

3GPP2 CS

3GPP PS3GPP2 PS

Target Sub-network Architecture Mapped in Operator Roles


Agenda






The “Inter” NetworkThe “Inter” Network


IntraIntra--IMS requirements and needsIMS requirements and needs• Secure delivery of high quality multi-media communications to paying subscribers

IMS NetworksThe need for Session Control

• Conform to regulatory requirements

InterInter--IMS requirements and needsIMS requirements and needs

• Support secure and reliable ways of interworking across IP network borders

• Enable clearing and enforcement of Business-to-Business agreements between operators


A simple VoIP model…

PSTNPSTN

CCS CCS

MGC/MGC/SGW SGW

H.248

ISUP

SIP

RTP

SIP

MGW MGW RTP

SIP

IntraIntra--IMS requirements and needsIMS requirements and needs


… implies a lot of obstaclesAssumes simple IP connections for all users

– Cannot handle users behind firewalls and NAT´s

Displays the whole topology to all – Wide-open network that is an easy target for attacks

Regulatory requirements such as legal intercept are not considered. No correlation of the “call state” and the media streams

– Not possible to have use-based charging You cannot prove successful transmission of mediaUsers will quit the call in the “SIP call plane” but continue the call in the media plane.How to distinguish an ongoing call from call state residues after a client crash etc.

– Not possible to provide QoS differentiation per serviceYou cannot prevent the user from faking the service in the call plane.Prepare for 64Mbps high priority “voice” streams…



U.K. subscriber

Obvious things ...... are not always that obvious

112112

Local Emergency center

HomeEmergency center

VoIP network

Conform to regulatory requirements



It might work...

PSTNPSTN

Support secure and reliable ways of interworking across IP network

borders

InterInter--IMS requirements and needsIMS requirements and needs

ProprietaryVoIP Solution B

ProprietaryVoIP Solution A


... but why not take the proven track?

Mobile Mobile

IPIP

Enterprise Enterprise Residential Residential

PushPush--toto--TalkTalk

IMSIMSMessagingMessaging

Group &Group &List mgmtList mgmt

MultiMulti--mediamediaTelephonyTelephony PresencePresence

CombiningCombiningIMS and CSIMS and CS

voicevoice


Transit IMS

BGBG

IMS Transit cases

IBCF Outg.IBCF

Inc.MGCF

Outg.MGCF

ENUM

Orig.UE

Term.UE

NPData-base

IWF IWF

I-CSCF

BGCF

IMS IMS

PSTN PSTN

Non-SIPIP nets

Non-SIPIP nets

1

2

3 3 4

4

5

5

6

IMS as bridge between PSTN islands1IMS as bridge between Non-SIP IP networks2IMS as PSTN break-in/break out for traffic to/from Non-SIP network

3

IMS break-out in other IMS network4IMS break-in traffic to other IMS networks5IMS as Transit between two other IMS (SIP) networks

6

BGBG


IMS InterworkingService interoperability – managed quality

Operator B

IP CoreIP Core

IMS

IP CoreIP Core

IMS

IP CoreIP Core

IMS

”SIP Hub”

Video Telephony

PoC

Multimedia

VoIP

Gaming

BGBG

BG

BG

Guarantee quality• Manage QoS for services• Control and monitor• Charge / Account / Bill

Guarantee quality• Manage QoS for services• Control and monitor• Charge / Account / Bill


Agenda








SummaryConvergence is here now

Operators will explore convergence in order to grow their business and reduce cost

IMS is embraced by Tispan, CableLabs, Wimax Forum, …… as the base for NGN

NGN is being build to address major service requests:

– Security, QoS, Interoperability, Legal Requirements

NGN is also providing main end-user benefits:

– Ease of use, Always Best Connected, Reliability and Security

There is no industry wide supported alternative or competing standard for IMSIt secures service interoperability


IMS market position

Ericsson has signed 26 IMS system contracts for commercial launch and additionally performed over 50 trials. All based on the IMS (IP Multimedia Subsystem) standard.

All IMS contracts include a CSCF and HSS and may include one or more of the following applications: – IP Telephony, IP Centrex, Push to Talk, weShare,

and Presence

They are distributed over Americas, Europe, Asia-Pacific and Africa and include Fixed network implementations, GSM/GPRS, WCDMA and CDMA2000.


Documents

Convergence in NGN