Media Gateway - Tietoverkkolaboratorio - · PDF fileMedia Gateway 5 Mika Ahola 22.11.99 GSM/UMTS Network ... Radio network Core network MS C HSCSD GGS N+ ... Ericsson Network Architecture

Media Gateway 1 Mika Ahola 22.11.99

Media Gatewa y

Mika [email protected]

Mobile Switchin g Systems Unit, L M Ericsson in Finland


Outline

zBack groundzNew network architecturezMedia gatewayzStandardizationzSummary


Back groundBack ground

The New Telecoms World

- a global marketplace- a challen ge, a possibility

Competition

Price pressure

Fixed <> Mobile Technologies

Liberalization

Globalcustomers

IP & Internet


Wireless Internet Services

z News, weather, sports

z Traffic information

z Directory services

z Time tables

z Location-dependant informationservices, like “find a nearby restaurant”


GSM/UMTS Network (Phase 1)

GS M/UMT S UMT SGS M

Access to people and information

Narrowband

Wide band

UMT Sradio

access

GS Mradio

access

Internet/intranetPS T N/IS DN

GS M/UMT Score network


US IM

US IM

S IM

BT SBT SBT SBT SBT S



UMTS/GSM Reference Model

User equipment GS M BS S Core networkExternalnetwork

Cu Uu

Um

Iu

A

Iu

Gb

Iur

Abis

Iub

ME

ME

MT

S CP S MS -GMS C

RNC

RNC

BS C

UT RAN

S IM MT BT S BS C

MS C

E IR

GGS N

GMS C

S GS NAUCHLR


UMTS Standardization

GS MBT S

UMT SBT S

GS MBS C

Core network

GS M basedevolution to

UMT S

-circuit switchedevolution

-packet switched(GPRS )evolution

Revolution Evolution

UMT SRNC

Abis A

IuIub


Migration Roadmap

1998 1999 2000 2001

GS M

EDGE

UT RANWCDMA

Radionetwork

Corenetwork

MS C

HS CS D

GGS N+S GS N

GPRS Packet switched

Circuit switched

Ban

dwid

thB

andw

idth


Service ProductionFunctionality

T ime

S IMtoolkit

WAPApplications

Infrastructure

S erviceenablingtechnology

IT based services

IN

?Value AddedS ervices

VOICEMAIL GS N

BS S

S ERVER

MS C


TodaySingle-service networks

Next-generation Network StructureNext-generation Network Structure

Dat

a/IP

Net

wor

ks

Cel

lula

r/P

LMN

PS

TN

/ISD

N

CA

TV

Services

Access Transport & Switching Networks

Servers

Backbone Network

WirelineAccess

WirelessAccess

FutureMulti-service networks/client-server

Communcationapplications Control

Content Content

CableAccess

Clients/Applications


UTRAN

Ericsson Network Architecture

Wireless AN UTRANWireline AN

MGW

Connectivity backbone(STM, ATM, IP, …)

Media Gateway, handling User Plane

MSCServer

GSNServer

SCP

ResourceNode

Connectivity

Control

Application

HLR

Appl Servers

MGWInternetIntranets

MGWPSTN/ISDN/

PLMN

Server, handling Control Plane & Applications

SCS

MGW


Features of New Architecture:

z Separation of call control and connectivity/bearer controlz Flexible architecture that is possible to use for any connectivity (ATM, IP, STM)z Keep the N-ISDN/GSM service paradigm. Use MAP, ISUP, etc.z All devices needed for user plane manipulation are moved to the Media Gateway

(echo cancellers, codecs, etc.)z Possible to place infrequently used equipment in centralized resource nodesz Transmission efficient to have coded speech all the way to the rim of the PLMNz UTRAN and the Iu interface is ATM based. A good way to bring in ATM in the core

network is neededz Allows stable and mature introduction of UMTS networks since building on GSM

productsz New protocol to control media gateway remotelyz Services/applications outside core network enables service convergencez In line with standardization trends


MGW

MGW MGW

MGW

Backbone Network

ATMATM ATMATM ATMATMATMATM

ATMATM

ATMATM

ATMATM

ATMATM

AXDAXI 540

AXI 520


Services/Applications Outside Core Network

Application 2

Service Capability Servers

PLMNGen 2 UMTS

PLMNGen 3

PSTN/ISDN

OthermembersIMT-2000

Family

Open I/F

Application 1 Application n


UMTS Standardization Bodies for New Architecture

ControlHLR

GMSC/TransitServer

MSCServer

UTRAN

Connectivity Backbone NWATM, IP...

BTS RNC MediaGW

Media GW

PSTN/ISDN PLMN Internet/ Intranet

N-ISUP

GCP

MAP

RANAP

BICC

MEGACO

ITU-TSG11

Sigtran

SS7 over IPArchitecture

ITU-TSG16

3GPP R00

GCP


Reference Architecture for an All IP Network

GfGi

Iu-ps'

Iu

GiMr

Gi

Ms

Gi

R UuMGW

Gn

Gc

Gp

Signalling and Data Transfer Interface

Signalling Interface

TE MT UTRAN

GrOther PLMN

SGSN

GGSN

GGSN

EIR

SGSN

Gn

MGCF

R-SGW

MRF

MultimediaIP Networks

PSTN/Legacy/External

Applications &Services *)

Mm

Mw

Legacy mobilesignalingNetwork

Mc

Cx

R Um

TE MT ERAN

AlternativeAccess

Network

Mh

CSCF

CSCF

Mg

T-SGW *)

T-SGW *)

HSS *)

HSS *)

Applications& Services *)

MSC server GMSC server

Iu1 = Iucs (RTP, AAL2)

Iu2 = Iu(RANAP)

*) those elements are duplicated for figurelayout purpose only, they belong to the samelogical element in the reference model

McMc

MAP

MAP

SCP

CAP

MGWNb

Nc

Iu1

Iu2

R-SGW *)

Mh

Source:

3GPP TR 23.922V1.0.0 (1999-10)


Summar y

z Ericsson offers via the layered architecture an evolutionary approach tothe multi-service network

z Ericsson offers deployment of ATM & IP-based transport technologiesfor both UMTS and GSM/GPRS based on open standards.

z A Media Gateway product is introduced handling all user plane data in anintegrated way and that connects to ATM & IP backbones

z New network architecture will be included in release 00 of 3GPP

Media Gateway - Tietoverkkolaboratorio - · PDF fileMedia Gateway 5 Mika Ahola 22.11.99 GSM/UMTS Network ... Radio network Core network MS C HSCSD GGS N+ ... Ericsson Network Architecture

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