1

UBC-IEEE Workshop onFuture Wireless Systems

3G/B3G Wireless Core Networks

Standards for Integration Between Fixed & Mobile Networks

10 March 2006

DeWayne Sennett

2

Architecture Migration

• Continuing evolutionary path of distributed architecture principles for flexibility, scaling & costs

Call Control

Subscriber DB

Mob. Mgmt.

Phys. Resources

Subscriber DB

Mob. Mgmt.

Subscriber DB

Mob. Mgmt.

Call Control

Mob. Mgmt

Phys. ResourcesPhys. Resources

Call Control

Mob. Mgmt.

Gen. 1 Gen. 3Gen. 2

Standardized

Interfaces

2

3

NGN Long-Term

Convergence

199019801970

Public Switched Telecommunication Network (PSTN)

Intelligent Network Internet (IN)

Commercial Mobile Radio Systems

2000

NGNs

IP Internet (IP)private quasi-public

2010+

4

IMS ReferenceModel

3

5

IMS Network Architecture

SGSN

SIP

App

Server

App

Server

App

Server

SIP

UTRAN

GGSNUI

SIP

PSTNGateway

P-CSCF

Internet

Legacy Networks

(PSTN)

S-CSCF

I-CSCF

DNS/Enum

HSS

IMS

Core

IMS UE

6

IP/MPLS Core

IMS Network

MediaResource

Server

ApplicationServers

CSCF

Parlay/OSAGateway

MediaGateway

HSS

Cable

Internet

2G/3G802.xxAccess

PacketMobile

Network

CircuitMobile

Network

IP Network

IMS Convergence Model

4

7

IMS Logical Architecture

Control Plane

Manages

sessions,

resources

features, etc.

ServicePlane

Transport& Core Network Plane

EndPoints(Devices)

MGCF

I-CSCF

P-CSCF

PSTNPSTNSS7SS7

IP SignallingConverter

Media

Server

MRFC

BGCF

Wireline and Wireless SIP Endpoints

TDM

PBX

Legacy IP Endpoints

& PBXs H.323 and MGCP

Web

Services SIP Apps

Analog

Endpoint

Directory ServicesHSS / HLR

Parlay Apps

Web Portal

Operation

Administration & Maintenance

Support

Systems

(Billing

Mediation,

Care, Fault

Correlation, …)

Access Networks

e.g., GSM, UMTS, 802.x, DSL, Bluetooth

Access Networks

e.g., GSM, UMTS, 802.x, DSL, Bluetooth

CW AppsSMB Apps Enterprise Apps

MediaGateway

SIP

Parlay GW / OSA SCS

IM-SSF Service Broker (SCIM)

S-CSCF

Enablers

8

IMS Call to PSTN

5

9

PSTN Call to IMS

10

Voice Call Continuity

GSM/UMTS CS Domain

1 2 3

4 5 6

7 8 9

* 8 #

IPCAN

3GPP IMS

PSTN, another IMS

network, PLMN CS

domain, etc.

Internet

Dual Mode Handset

Dual Mode Handset

handover

Any Phone

after HO before HO

MGCF/ IM-MGW (G)MSC

Server

CCSF

CCDF

MGCF/

IM-MGW

Call continuity from IMS-controlled VoIP call and CS call

Real-time voice call continuity when users move between

GSM/UMTS CS Domain & IP Connectivity Access Network

(e.g., WLAN interworking) with home network IMS functionality

6

11

NGN Requirements

• Multi-service, multi-protocol, multi-access, IP based network

– Secure, reliable and trusted

– Multi-services: delivered by a common QoS enabled core network.

– Multi-access: several access networks; fixed and mobile terminals.

– Strong emphasis on security on a managed IP network

• Enabler for Service Providers

– Real-time & non real-time communication services between peers or in a client-server configuration

• Nomadicity & Mobility

– Both users & devices

– Intra- & Inter-Network Domains including between Fixed & Mobile networks

• Interoperability with legacy & new generation services and networks

• Regulatory compliance

– Lawful Intercept, Number Portability, Emergency call.…

12

IMS in NGN Configurations

7

13

Open IP Based Converged Networks

14

NGN ArchitectureLayers

8

15

Resource and Admission

Control Functionality

RACS

Based on3GPP IMS

IP ConnectivityAccess NetworkAnd related functionality

Network Attachment

Functionality

NASS

Other Multimedia

Components …

Streaming Services

(RTSP based)

PSTN / ISDN Emulation

(SIP-I based)

Applications

Core transport

Network

3GPP IP-CAN

Access Transport

Network

IP

3GPP Terminals

NGN

Terminals

Legacy

Terminals

Customer

Networks

Data

Base

Oth

er Netw

ork

s

“Gq”

interface

“Go”

interface

IP Multimedia

Component (Core IMS)

(SIP based)

PS

TN

/ ISD

N

MBG

TGW

ICF

GW

GW

Legacy

Terminals

NGN

Terminals

Legacy

Terminals

TISPAN NGN Architecture

16

NGN Service Network Configuration

9

17

NGN Example

18

Why Global Industry NGN

Participation & Support

• Meeting real needs of today

– IP-enabled public product standards

– Economies of Scale

– Global interoperability and markets

– Secure, stable infrastructure

– Compatibility with existing network infrastructures

– Common regulatory requirements

• Engaging all relevant standards bodies

– Identifying existing useable standards

– New standards & administrative practices adopted only as necessary

• Focused on “open” unbundled service modules & capability sets

– Staged in multiple “releases” over time

• Standards participants primarily other industry players

– Worldwide, regionally, and nationally

10

19

NGN Industry Standards

ITU-T IETF

ATIS

ETSI

NGNFramework

NGNOSS

3GPP

NGN Focus Group

STF

NGN

GSC

SG17

GSC9

WAE FG

MWS FG

VoIP FG

TISPANWG8

WG1

WTSC

T1P1 PTSC

(T1S1)

OPTXS

(T1X1)TMOC

(T1M1)

CableLabs

OASIS

SA5

DSL Forum

ECMA

NGN@home

Parlay

JWG

PAM

CCUI CBC

PM

Applications

LI

AT-D

WG7

WG3WG4

WG5

WG6WG2

GlobalNGN

Framework

WTSA

SG11

SG02

SG19

SG04NGNMFG

SG09

SG13

3GPP2

TSG-C

TSG-S

TSG-A

TSG-X

SG03

TIA

TR-41TR-8.8

3GPP2 OP

TR-45.2

TR-45.6TR-34.1.7

CPWG

MESA

SG15

TeleManagementForum

SA2

OBF

IPDR

RosettaNet

EPCglobal

OSS/J

DMTF

OMA

NGN Focus Group

General

Internet

O&M

Routing

Security

Transport

PGCSA1

SA4

GSC10

W3CSG16

INC

TR-45

SA3

NIIF

20

NGN Policy, Legal& Regulatory

CIOT

ITU ConventionInt’l Telecom Regs

APEC-TEL

Commission of the European Community

USA

FCC

[WCIT]PP2006

eSecTG

NSTACCanada

Australia

Infso

ParliamentACA

Germany

NANC

IndustryCanada

Many Others

Cybercrime

ConventionSignatories &

Justice Ministers

CITEL

DOS

RegTP

Other multilateral

and bilateral agreements

DOJ DOC

DHSPSECP

WGSC WGANTS

PCC.I

NGN WGNGN reg

i2010

France

NetherlandsUKHomeOffice

ParliamentEZ

OFCOM

JusticeART

Justice

BfV

JHA

11

21

Project Co-ordination Group

(PCG)

TSG RANRadio Access Networks

RAN WG1Radio Layer 1 specification

RAN WG2Radio Layer2 spec &

Radio Layer3 RR spec

RAN WG3lub spec lur spec lu spec &

UTRAN O&M requirements

RAN WG4Radio Performance &

Protocol Aspects

RAN WG5 (ex T1)Mobile Terminal

Conformance Testing

TSG SAServices &

System Aspects

SA WG1Services

SA WG2Architecture

SA WG3Security

SA WG4Codec

SA WG5Telecom Management

TSG CTCore Network& Terminals

CT WG1 (ex CN1)MM/CC/SM (lu)

CT WG3 (ex CN3)Interworking with External Networks

CT WG4 (ex CN4)MAP/GTP/BCH/SS

CT WG5 (ex CN5)OSA

Open Service Access

CT WG6 (ex T3)Smart Card

Application Aspects

TSG GERANGSM EDGE

Radio Access Network

GERAN WG1Radio Aspects

GERAN WG2Protocol Aspects

GERAN WG3Terminal TestingGERAN WG3Terminal Testing

September 2005

3GPP Structure

22

Acronyms

• API Application Programming Interface• AS Application Server• BGCF Breakout Gateway Control Function • CAMEL Customised Applications for Mobile Enhanced Logic• CSCF Call Session Control Function• IMS IP Multimedia Subsystem• IM SSF IP Multimedia Service Switching Function• IP-CAN IP- Connectivity Access Network• ISC IP_multimedia_subsystem_Service_Control_interface• IWF Inter-Working Function• HLR Home Location Register• HSS Home Subscriber Server• MRF Media Resource Function• MG Media Gateway• MGCF Media Gateway Control Function• NASS Network Attachment Sub-System• NA(P)T Network Address (Port) Translation• OSA Open Services Architecture• PDF Policy Decision Function• SCS Service Capability Server• QoS Quality of Service• RACS Resource and Admission Control Subsystem• SIP Session Initiation Protocol• SLF Subscription Locator Function

12

End

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