ITU-BDT Regional Seminar on Fixed Mobile
Convergence and new network architecture
for the Arab Region
"Mobile Network Evolution to NGN”
Tunis, TUNISIA
21-24/11/2005
Roland THIES
Presentation Outline
What is NGN and how it applies in Mobile Networks?
>
Mobile Networks Architectures
>
Why NGN?
- Mobile Network Evolution to NGN — 2
All rights reserved © 2005, Alcatel
1
What is NGN?
What is NGN?
NGN: Next Generation Networks
Separation of
Access Layer
Transport Layer
Control Layer
Service Layer
with Control & Transport Layers being shared by
the different Access Type (RAN, Fixed…)
and Service Layers
with Packet (ATM, IP) Transport converging toward IP transport
for provision of Multimedia Services (Real Time, Presence, Messaging, Voice, Video, Data...)
- Mobile Network Evolution to NGN — 4
All rights reserved © 2005, Alcatel
2
What is NGN?
Service
Service
Subscriber
Data base
Control
+
Transport
Subscriber
Data base
Call Server
Call Server
Control
BICC
ISUP
MAP
E1/ATM/SD
H
Switch
H.248
H.248
ATM or IP
Access
- Mobile Network Evolution to NGN — 5
Transport
Access
All rights reserved © 2005, Alcatel
How NGN applies in Mobile Networks?
3
How NGN Applies in Mobile Networks?
UMTS R99:
Largely derived from GSM
Last non-NGN Release
Features content functionally frozen 12/2000
Still Change Requests
UMTS R4:
NGN in Cs Domain with Separation of Control and User layers
Introduction of Call Server & MGW
Introduction of ATM and IP transport instead of TDM
Standard completed in March 2001
UMTS R5:
NGN for IMS
Introduction of MM Call Server with SIP Call Control Protocol
Standard Content frozen in June 2003
- Mobile Network Evolution to NGN — 7
All rights reserved © 2005, Alcatel
GSM Radio Technology Evolution
UMTS
Overlay
EDGE is upgraded from GSM/GPRS
UMTS
UMTS overlays from GSM/GPRS
UMTS is upgraded from GSM/GPRS
EDGE
EDGE
GSM/GPRS Ocean
- Mobile Network Evolution to NGN — 8
UMTS
Upgrade
EDGE
All rights reserved © 2005, Alcatel
4
3GPP Network Evolution
3G- -Step
Step22(UMTS
(UMTSR4)
R4)
3G
LegacyCS
CSupgrade
upgradetotoNGN
NGN
- -Legacy
Nomodification
modificationon
onPS
PS
- -No
3G- -Step
Step11(UMTS)
(UMTS)
3G
-LegacyCS/PS
CS/PSCN
CNupgrade
upgrade
-Legacy
-WCDMAnew
newRadio
RadioAccess
Access
-WCDMA
2.5G- -Step
Step22(EDGE)
(EDGE)
2.5G
AAl
l-llI
-PIP
EEv
ovol
ulut
ioti
onn
GSM/GPRSRadio
Radioupgrade
upgrade
- -GSM/GPRS
forhigh
highspeed
speeddata
dataservice
service
for
2.5G- -Step
Step11 (GPRS)
(GPRS)
2.5G
PacketCore
CoreNetwork
Network
- -Packet
GSMRadio
Radioupgrade
upgrade
- -GSM
2GGSM
GSM
2G
LegacyNetwork
NetworkArchitecture
Architecture
- -Legacy
TDMARadio
Radio
- -TDMA
1995
2000
01
- Mobile Network Evolution to NGN — 9
02
03
04
05
06
07
Year of Deployment
All rights reserved © 2005, Alcatel
How NGN Applies in Mobile Networks?
CDMA 1x RTT:
Extended radio technology from IS95
Last non-NGN Release
Release 0 in commercial service since Oct 2000
New overlay Packet Data Serving Node
CDMA 1x EV-DO:
Hybrid CDMA+TDMA technologies for bursty applications (High Speed Data)
Requires a separate carrier (1.25MHz), mainly deployed for hot zones.
Could be developed independent of IS95/1xRTT. (No MSC/VLR needed)
Commercial service in SK, China, Japan, USA
CDMA 1x EV-DV:
NGN in Cs Domain with Separation of Control and User layers
Backward compatible with CDMA2000 1xRTT
Field Trials ongoing
- Mobile Network Evolution to NGN — 10
All rights reserved © 2005, Alcatel
5
CDMA2000 Radio Technology Evolution
• Separate Carrier, hybrid CDMA
and TDMA for Data Only
DL: 2.4Mbps
UL: 153kbps as 1xRTT
Commercial
Today
Dec 2000
CDMA2000
CDMA2000
EV-DO
EV-DO
IS95-A
IS95-A
/ /BB
1995 /
1999
CDMA2000
CDMA2000
Rel.AA
Rel.
1xRTT
1xRTT
CDMA2000
CDMA2000
Rel.00
Rel.
1xRTT
1xRTT
June
2000
July
1999
+ Voice capacity
increase 1.5x
+ PS Data 153kbps
CDMA2000
CDMA2000
Rel.CC
Rel.
EV-DV Ph1
Ph1
EV-DV
CDMA2000
CDMA2000
Rel.BB
Rel.
1xRTT
1xRTT
May
2002
April
2002
+ PS Data 307kbps
+ Unified 1x and 3x
operation
+ Improvement of
Rel. A
+ DL: up to 3.09Mbps
UL: same as 1xRTT
CDMA2000
CDMA2000
Rel.DD
Rel.
EV-DV Ph2
Ph2
EV-DV
Dec
2003
+ Uplink
enhancement
EV-DO: 1x Evolution Data Only , now also called HDR (high data rate)
EV-DV: 1x Evolution Data and Voice
Dates are publication day of version 1.0 standard. (E.g. CDMA2000 Rel. A published version 1.0 in June 2000, and version 6.0 in Feb
2002.)
- Mobile Network Evolution to NGN — 11
All rights reserved © 2005, Alcatel
CDMA2000 Radio Technology Evolution
EV-DO
Overlay
1xRTT is upgraded from IS95
EV-DO
1xEV-DO overlays IS95/1xRTT
1xEV-DV is upgraded from 1xRTT
1xRTT
1xRTT
IS95 Ocean
- Mobile Network Evolution to NGN — 12
EV-DV
Upgrade
1xRTT
All rights reserved © 2005, Alcatel
6
3GPP2 Network Evolution
3G- -Step
Step33(MMD)
(MMD)
3G
1xEV-DVRadio
RadioAccess
Access
- -1xEV-DV
MultimediaDomain
Domain
- -Multimedia
3G- -Step
Step2’2’(NGN)
(NGN)
3G
LegacyCS
CSupgrade
upgradetotoNGN
NGN
- -Legacy
architecture(LMSD)
(LMSD)
architecture
3G- -Step
Step11 (1xRTT)
(1xRTT)
3G
PacketCore
CoreNetwork
Network
- -Packet
CDMA20001x
1xRadio
Radio
- -CDMA2000
AAl
l-llI
-PIP
EEv
ovol
ulut
ioti
onn
3G- -Step
Step22(EV-DO)
(EV-DO)
3G
1xEV-DOaccess
accessadded
addedfor
forhigh
high
- -1xEV-DO
speeddata
dataservice
service
speed
2GCDMA
CDMA
2G
LegacyNetwork
NetworkArchitecture
Architecture
- -Legacy
IS95Radio
Radio
- -IS95
1995
2000
01
02
- Mobile Network Evolution to NGN — 13
03
04
05
06
07
Year of Deployment
All rights reserved © 2005, Alcatel
Presentation Outline
>
What is NGN and how it applies in Mobile Networks?
>
Mobile Networks Architectures
>
>
2G/3G Mobile Networks
>
NGN Evolution
Why NGN?
- Mobile Network Evolution to NGN — 14
All rights reserved © 2005, Alcatel
7
GSM Architecture
Air
interface
(TDMA)
OMC-R
OMC-S
X.25
A bis
X.25
ISUP/R2
A
E1
Mobile
handset (SIM)
850 MHz
900 MHz
1800 MHz
1900 MHz
E1
MSC
E1
VLR
PSTN
PLMN
MAP
BTS
HLR
BSC
VM
BSS
MMS-C
EIR
NSS
- Mobile Network Evolution to NGN — 15
All rights reserved © 2005, Alcatel
CDMA Architecture
Air
interface
(IS95)
OMC-R
OMC-S
X.25
X.25
IS634
Mobile handset
T1
(no SIM, PIN)
450 MHz
800 MHz
1900 MHz
T1
BTS
ANSI#7
MSC
VLR
PSTN
PLMN
IS41
BSC
HLR
BSS
- Mobile Network Evolution to NGN — 16
T1
VM
MMS-C
NSS
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8
2.5G GPRS/EDGE
Mobile
Switching
Center
Cell
Cell
Base Station
Controller
Cell
Circuit
Backbone
HLR
Public
Telephone
Network
Application
Servers
IP/ATM
Backbone
SGSN
Data Rates
Gateway
Mobile
Switching
Center
GGSN
Internet
GPRS 40 -144 kbps
Radius
AAA/Billing
EDGE 384 - 473 kbps
- Mobile Network Evolution to NGN — 17
All rights reserved © 2005, Alcatel
2.5G CDMA 1XRTT
Mobile
Cell
Switching
Center
Cell
Cell
Base Station
Controller
Data Rates 60- 288 kbps
HLR
PDSN
Gateway
Mobile
Switching
Center
Public
Telephone
Network
Application
Servers
IP/ATM
Backbone
Radius
AAA/Billing
- Mobile Network Evolution to NGN — 18
Circuit
Backbone
Internet
HA
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9
3G W-CDMA R3 (R99)
Mobile
Switching
Center
Cell
Cell
Cell
Circuit
Backbone
TDM/ATM/IP
Radio Node
Controller
HLR
Data Rates 384 Kbps - 2
Mbps
- Mobile Network Evolution to NGN — 19
Public
Telephone
Network
Application
Servers
IP/ATM
Backbone
SGSN
Gateway
Mobile
Switching
Center
GGSN
Internet
Radius
AAA/Billing
All rights reserved © 2005, Alcatel
Presentation Outline
>
What is NGN and how it applies in Mobile Networks?
>
Mobile Networks Architectures
> 2G/3G Mobile Networks
> NGN Evolution
>
Why NGN?
- Mobile Network Evolution to NGN — 20
All rights reserved © 2005, Alcatel
10
3G W-CDMA R4
Mobile Softswitch
HLR
SS-7
Application
Servers
Media
Gateway
Cell
Radio Node
Controller
Cell
SGSN
Media
Gateway
Public
Telephone
Network
IP over
MPLS/ATM
Backbone
Cell
GGSN
Internet
Data Rates 384 Kbps - 2 Mbps
- Mobile Network Evolution to NGN — 21
All rights reserved © 2005, Alcatel
3G W-CDMA R5/R6 (IMS)
Mobile Softswitch
HLR
SS-7
Application
Servers
Media
Gateway
Public
Telephone
Network
Media
Gateway
Cell
Cell
Radio Node
Controller
Cell
SGSN
IP over
MPLS/ATM
Backbone
MMAS
MMCF
MRF
MGW
Data Rates 384 Kbps - 2 Mbps
5 Mbps (HSDPA)
- Mobile Network Evolution to NGN — 22
GGSN
Internet
All rights reserved © 2005, Alcatel
11
3G CDMA 2000 EV-DV
HLR
Application
Servers
Radio Node
Controller
Media
Gateway
Media
Gateway
Cell
Cell
SS-7
Mobile Softswitch
Public
Telephone
Network
IP over
MPLS/ATM
Backbone
PDSN
Cell
Internet
Edge Router
Data Rates 2 - 5 Mbps
- Mobile Network Evolution to NGN — 23
All rights reserved © 2005, Alcatel
IMS: Delivering User-Centric Services
Push-to-Talk
Audio/Video
conference
Audio/Video
phone
Externalized
subscriber
database for
both mobile
and fixed
Unified
Messaging
IP
IP Multimedia
Multimedia
Subsystem
Subsystem
Supplier integrated
applications, own and
3rd party
HSS
CSCF, presence
management,
nomadicity
Packet Data
Gateway
IMS
Serving Node
Interworking
MG/MGC
DSLAM/BAS/MAG
NB voice
(PSTN/PLMN)
BB Wireline
(xDSL, FTTx)
3rd Party
Content &
Applications
SOAP
Web Services
H.323,
MGCP, to
SIP
WiFi
Corporate
Network
- Mobile Network Evolution to NGN — 24
SIP
GGSN/PDSN
MAG
IP-PBX
H.323, to
SIP
All rights reserved © 2005, Alcatel
MG/MGC
Public Wireless
Broadband
WiFi, WiMAX
SIP
2G/3G mobile
Packet access
2G/3G mobile
circuit access
12
Presentation Outline
>
What is NGN and how it applies in Mobile Networks?
>
Mobile Networks Architectures
>
Why NGN?
- Mobile Network Evolution to NGN — 25
All rights reserved © 2005, Alcatel
Why NGN?
1 - Transport Network Simplification
2 - Higher Network Scalability
3 - Bandwidth Saving
4 - New Services
- Mobile Network Evolution to NGN — 26
All rights reserved © 2005, Alcatel
13
Why NGN?
1- Transport Network Simplification - Common Cs/Ps Backbone
Only one transport backbone for Voice, Data on ATM or IP
improved resources use efficiency
resources sharing
one network management
TDM
Network
TC
PSTN
/PLMN
RAN
Packet
Data
Network
SGSN
RAN
PSTN
/PLMN
Packet
Network
Internet
Internet
GGSN
- Mobile Network Evolution to NGN — 27
GGSN
SGSN
All rights reserved © 2005, Alcatel
Why NGN?
1- Transport Network Simplification - No Transit Layer
No Need for Transit Layer MSC
Dynamic connection establishment between nodes
in ATM through SVC, in IP through routing
MSC
transit
MSC
RNC/
BSC
Node B
/BTS
MSC
RNC/
BSC
Node B
/BTS
Packet
Backbone
MSC
RNC/
BSC
Node B
/BTS
MSC
server
MSC
server
RNC/
BSC
Node B
/BTS
- Mobile Network Evolution to NGN — 28
MGW
RNC/
BSC
Node B
/BTS
Node B
/BTS
RNC/
BSC
Node B
/BTS
Node B
/BTS
MGW
MGW
MGW
RNC/
BSC
RNC/
BSC
Node B
/BTS
RNC/
BSC
Node B
/BTS
RNC/
BSC
Node B
/BTS
Node B
/BTS
All rights reserved © 2005, Alcatel
14
Why NGN?
1- Transport Network Simplification - Common Signalling/Packet Backbone
With Signalling over IP, no Need for Dedicated Signalling Network
simplification of transport network
improved resource use efficiency
SCP
HLR
HLR
SCP
#7 over NB
(E1 TDM)
SCP
# 7 over IP
(Sigtran)
MSC
server
MSC
server
HLR
MSC
server
MGW
RNC/
BSC
Node B
/BTS
RNC/
BSC
RNC/
BSC
Node B
/BTS
MGW
MGW
RNC/
BSC
Node B
/BTS
RNC/
BSC
- Mobile Network Evolution to NGN — 29
MGW
RNC/
BSC
Node B
/BTS
Node B
/BTS
Node B
/BTS
MGW
Node B
/BTS
RNC/
BSC
Node B
/BTS
SCP
MSC
server
Packet
Backbone
Packet
Backbone
MGW
HLR
MGW
MGW
RNC/
BSC
RNC/
BSC
Node B
/BTS
RNC/
BSC
Node B
/BTS
Node B
/BTS
Node B
/BTS
All rights reserved © 2005, Alcatel
Why NGN?
1- Transport Network Simplification - Common CN/RAN backbone
With IP in RAN in R5, Merge of CN & RAN IP Transport Networks
simplification of transport network
improved resource use efficiency
SCP
HLR
MSC
server
HLR
Packet
Backbone
MGW
SCP
MSC
server
MGW
ATM
RNC/
BSC
Node B
/BTS
RNC/
BSC
Node B
/BTS
RNC/
BSC
Node B
/BTS
RNC/
BSC
Node B
/BTS
- Mobile Network Evolution to NGN — 30
HLR
HLR
MSC
server
MGW
MGW
SCP
RNC/
BSC
Node B
/BTS
Node B
/BTS
MSC
server
MGW
MGW
RNC/
BSC
RNC/
BSC
Packet
Backbone
IP
Node B
/BTS
SCP
Node B
/BTS
RNC/
BSC
Node B
/BTS
MGW
MGW
RNC/
BSC
Node B
/BTS
RNC/
BSC
Node B
/BTS
Node B
/BTS
All rights reserved © 2005, Alcatel
15
Why NGN?
2- Bandwidth Saving
End to End AMR voice transport (3G/3G Call)
Bandwidth optimisation
Transcoder saving
Voice quality improvement
R99
Node B
TC
AMR
TDM
Network
Node B
TC
G711 (64 K bits/s per channel)
AMR
NGN
Packet
Network
Node B
Node B
AMR (down to 15 K bits/s with ATM AAL2 per channel)
- Mobile Network Evolution to NGN — 31
All rights reserved © 2005, Alcatel
Why NGN?
2- Bandwidth Saving
AMR in CN for 3G<->PSTN/2G PLMN Voice Call (R4)
Bandwidth optimisation
R99
Node B
TC
AMR
TC
PSTN
/2G PLMN
TDM
Network
G711 (64 K bits/s per channel)
NGN
TC
PSTN
/2G PLMN
Packet
Network
Node B
TC
AMR (down to 15 K bits/s with ATM AAL2 per channel)
- Mobile Network Evolution to NGN — 32
G711 (64 K bits/s per ch.)
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16
Why NGN?
3- Bandwidth Saving (CS domain)
Transport Bandwidth Efficiency (from R4 & beyond)
transport type
kb/s per channel
G711 over
TDM
(reference)
kb/s per voice channel
64
kb/s per 64kb data ch.
64
AMR over AMR over
ATM AAL2 POS IP V4
15
85
AMR over
IP V4 over
ATM AAL5
AMR over
G711 over
IP V6 over
ATM AAL2
ATM AAL5
AMR over
POS IP V6
AMR over
GE IP V4
AMR over
GE IP V6
34
44
49
59
51
51
85
121
141
151
171
153
204
N/A
ATM AAL2:
the most efficient for both Voice and 64kb/s Data
POS:
the most efficient of the IP transport
64kb/s Data: Packet transport brings degradation
but data traffic on Cs should be low w/r to voice traffic
- Mobile Network Evolution to NGN — 33
All rights reserved © 2005, Alcatel
Why NGN?
3- Bandwidth Saving (PS domain)
Transport type
IP over SDH
IP over ATM AAL5
Byte per packet
256 byte IP packet
512 byte IP packet
267
525
318
583
- IP over SDH more efficient than IP over ATM (10 to 20%)
- Mobile Network Evolution to NGN — 34
All rights reserved © 2005, Alcatel
17
Why NGN?
4- New Services Unified Services through standardized Interfaces
one Service Platforms
services independent of
whatever the access layer types
access layer type
(unlike IN, Voice Mail for Mobile, email for fixed Internet…)
(fixed, mobile, PC, PDA, Phone)
UMTS CN
Ps/Cs
Internet
PSTN
- Mobile Network Evolution to NGN — 35
All rights reserved © 2005, Alcatel
Applications activity overview
Push-to-Talk Over Cellular (PTT)
IVR, Multi Languages
PTT to conference
Click-to-Dial/Help/Conference
Personal Voice Assistant
Ringback Tones
Media Push
Toll Saver (Call Back)
Movie Renting
Email Dial-In & Listen
Web Chat-to-Talk/Conference
Picture Sharing
Push-to-Watch
Ringback Pictures
Audio Conferencing
Video Conferencing
Mobile Conferencing
Voice Activated Dialing
Location Based Services
IP Contact Center
Multi-Person Gaming
Audio Conferencing with Video
Prepaid Calling
Click to services
Virtual Receptionist
- Mobile Network Evolution to NGN — 36
All rights reserved © 2005, Alcatel
18
Why NGN?
4- New Services
IP as target transport layer with benefit of existing IP services
Merge and combination of existing services
Standardized Video Communication (between fixed & mobile, video conferencing & video mail)
Unified messaging one mail box whatever the message (voice, text, video) & device type
Multimedia Messaging
Instant Messaging
- Mobile Network Evolution to NGN — 37
All rights reserved © 2005, Alcatel
Why NGN?
CAPEX
CAPEX
OPTIMIZER
OPTIMIZER
Summary
Summary
OPEX
OPEX
OPTIMIZER
OPTIMIZER
REVENUE
REVENUE
ASSURANCE
ASSURANCE
Transport
TransportNetwork
NetworkSimplification
Simplification
Higher
HigherNetwork
NetworkScalability
Scalability
Bandwidth
BandwidthSaving
Saving
New
NewServices
Services
- Mobile Network Evolution to NGN — 38
All rights reserved © 2005, Alcatel
19
Conclusion
>
NGN is the separation between Control and Transport
>
NGN is mainly introduced in 3G UMTS R4/R5 and CDMA2000 1x EV-DV
>
Only one transport backbone for Voice, Data on ATM or IP
>
Bandwidth optimisation,Transcoder saving & Voice quality improvement
when Mobile to Mobile/PSTN calls using TrFO
>
Unified Services through standardized Interfaces independent of access layer type
>
News Services (Merge and combination of existing services):
(fixed, mobile, PC, Phone)
Standardized Video Communication
Unified messaging
Multimedia Messaging
Instant Messaging
- Mobile Network Evolution to NGN — 39
All rights reserved © 2005, Alcatel
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20