Post on 10-Feb-2018
Media Gateway 1 Mika Ahola 22.11.99
Media Gatewa y
Mika Aholamika.ahola@ericsson.fi
Mobile Switchin g Systems Unit, L M Ericsson in Finland
Media Gateway 2 Mika Ahola 22.11.99
Outline
zBack groundzNew network architecturezMedia gatewayzStandardizationzSummary
Media Gateway 3 Mika Ahola 22.11.99
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
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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”
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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
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US IM
US IM
S IM
BT SBT SBT SBT SBT S
BT SBT SBT SBT SBT S
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
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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
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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
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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
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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
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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
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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
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MGW
MGW MGW
MGW
Backbone Network
ATMATM ATMATM ATMATMATMATM
ATMATM
ATMATM
ATMATM
ATMATM
AXDAXI 540
AXI 520
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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
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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
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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)
Media Gateway 17 Mika Ahola 22.11.99
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