itu-bdt regional seminar on fixed mobile convergence … · mobile convergence and smooth evolution...
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ITU-BDT Regional Seminar on Fixed Mobile Convergence and smooth evolution to IMT-2000 for Africa
Nairobi KENYA9-12/05/2005Roland THIES
"Mobile Network Evolution to NGN” "Mobile Network Evolution to NGN”
- Mobile Network Evolution to NGN — 2 All rights reserved © 2005, Alcatel
What is NGN and how it applies in Mobile Networks?What is NGN and how it applies in Mobile Networks?
> Mobile Networks Architectures
> Why NGN?
Presentation Outline
2
What is NGN?
- Mobile Network Evolution to NGN — 4 All rights reserved © 2005, Alcatel
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...)
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- Mobile Network Evolution to NGN — 5 All rights reserved © 2005, Alcatel
Service
Control+
Transport
Access
Switch
ISUPMAP
Subscriber Data base
E1/SDH
What is NGN?
ApplicationServer
Subscriber Data base
ApplicationServer
Service
Control
Transport
Access
H.248
ATM or IP
Call Server Call Server
BICC
MGW MGW
SwitchH.248
How NGN applies in Mobile Networks?
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- Mobile Network Evolution to NGN — 7 All rights reserved © 2005, Alcatel
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 — 8 All rights reserved © 2005, Alcatel
GSM Radio Technology Evolution
GSM/GPRS Ocean
UMTSEDGE
EDGE
Upgrade
OverlayUMTS
EDGE
� EDGE is upgraded from GSM/GPRS
� UMTS overlays from GSM/GPRS
� UMTS is upgraded from GSM/GPRS
UMTS
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- Mobile Network Evolution to NGN — 9 All rights reserved © 2005, Alcatel
3GPP Network Evolution
2G GSM- Legacy Network Architecture- TDMA Radio
2G GSM- Legacy Network Architecture- TDMA Radio
2.5G - Step 1 (GPRS)- Packet Core Network - GSM Radio upgrade
2.5G - Step 1 (GPRS)- Packet Core Network - GSM Radio upgrade
2.5G - Step 2 (EDGE)- GSM/GPRS Radio upgradefor high speed data service
2.5G - Step 2 (EDGE)- GSM/GPRS Radio upgradefor high speed data service
3G - Step 2 (UMTS R4)- Legacy CS upgrade to NGN - No modification on PS
3G - Step 2 (UMTS R4)- Legacy CS upgrade to NGN - No modification on PS
2000 02 04 Year of Deployment
3G - Step 1 (UMTS)-Legacy CS/PS CN upgrade-WCDMA new Radio Access
3G - Step 1 (UMTS)-Legacy CS/PS CN upgrade-WCDMA new Radio Access
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All-IP E
volut
ion
All-IP E
volut
ion
01 03 05 071995
- Mobile Network Evolution to NGN — 10 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
� Commercial service in 2005
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- Mobile Network Evolution to NGN — 11 All rights reserved © 2005, Alcatel
CDMA2000 Radio Technology Evolution
IS95-A/ B
IS95-A/ B
CDMA2000 Rel. 01xRTT
CDMA2000 Rel. 01xRTT
CDMA2000 EV-DO
CDMA2000 EV-DO
CDMA2000Rel. C
EV-DV Ph1
CDMA2000Rel. C
EV-DV Ph1
1995 /1999
May2002
Dec2003
CDMA2000Rel. D
EV-DV Ph2
CDMA2000Rel. D
EV-DV Ph2
July1999
Dec 2000
+ Voice capacity increase 1.5x+ PS Data 153kbps
• Separate Carrier, hybrid CDMAand TDMA for Data Only DL: 2.4MbpsUL: 153kbps as 1xRTT
+ DL: up to 3.09Mbps UL: same as 1xRTT
+ Uplink enhancement
EV-DO: 1x Evolution Data Only , now also called HDR (high data rate)EV-DV: 1x Evolution Data and VoiceDates 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.)
CDMA2000 Rel. A1xRTT
CDMA2000 Rel. A1xRTT
CDMA2000 Rel. B1xRTT
CDMA2000 Rel. B1xRTT
June2000
April2002
+ PS Data 307kbps+ Unified 1x and 3x operation
+ Improvement of Rel. A
CommercialToday
- Mobile Network Evolution to NGN — 12 All rights reserved © 2005, Alcatel
CDMA2000 Radio Technology Evolution
IS95 Ocean
EV-DV1xRTT
1xRTT
Upgrade
OverlayEV-DO
1xRTT
� 1xRTT is upgraded from IS95
� 1xEV-DO overlays IS95/1xRTT
� 1xEV-DV is upgraded from 1xRTT
EV-DO
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- Mobile Network Evolution to NGN — 13 All rights reserved © 2005, Alcatel
3GPP2 Network Evolution
2G CDMA- Legacy Network Architecture- IS95 Radio
2G CDMA- Legacy Network Architecture- IS95 Radio
3G - Step 1 (1xRTT)- Packet Core Network - CDMA2000 1x Radio
3G - Step 1 (1xRTT)- Packet Core Network - CDMA2000 1x Radio
3G - Step 2 (EV-DO)- 1xEV-DO access added for high speed data service
3G - Step 2 (EV-DO)- 1xEV-DO access added for high speed data service
3G - Step 3 (MMD)- 1xEV-DV Radio Access- Multimedia Domain
3G - Step 3 (MMD)- 1xEV-DV Radio Access- Multimedia Domain
2000 02 04 Year of Deployment
3G - Step 2’ (NGN)- Legacy CS upgrade to NGN architecture (LMSD)
3G - Step 2’ (NGN)- Legacy CS upgrade to NGN architecture (LMSD)
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All-IP E
volut
ion
All-IP E
volut
ion
01 03 05 071995
- Mobile Network Evolution to NGN — 14 All rights reserved © 2005, Alcatel
>> What is NGN and how it applies in Mobile Networks?What is NGN and how it applies in Mobile Networks?
> Mobile Networks Architectures> 2G/3G Mobile Networks
> NGN Evolution
> Why NGN?
Presentation Outline
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- Mobile Network Evolution to NGN — 15 All rights reserved © 2005, Alcatel
OMC-R OMC-S
HLR
MSC PSTNPLMNMobile
handset (SIM)
850 MHz900 MHz1800 MHz1900 MHz
BTS BSC
VLR
VM SMSC EIR
BSS NSS
X.25 X.25
ISUP/R2
E1
MAP
A
E1
E1
Air interface (TDMA)
A bis
GSM Architecture
- Mobile Network Evolution to NGN — 16 All rights reserved © 2005, Alcatel
OMC-R OMC-S
HLR
MSC PSTNPLMNMobile handset
(no SIM, PIN)
450 MHz800 MHz
1900 MHz BTS BSC
VLR
VM SMSC
BSS NSS
X.25 X.25
ANSI#7
T1
IS41
IS634
T1
T1
Air interface
(IS95)
CDMA Architecture
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- Mobile Network Evolution to NGN — 17 All rights reserved © 2005, Alcatel
2.5G GPRS/EDGE
Cell
Cell
Cell Base Station Controller
PublicTelephoneNetwork
Mobile Switching Center
SGSN
HLR
RadiusAAA/Billing
GGSNIP/ATM Backbone Internet
Data Rates
GPRS 40 -144 kbps
EDGE 384 - 473 kbps
Gateway Mobile Switching Center
Circuit Backbone
Circuit Backbone
ApplicationServers
- Mobile Network Evolution to NGN — 18 All rights reserved © 2005, Alcatel
2.5G CDMA 1XRTT
Cell
Cell
Cell Base Station Controller
PublicTelephoneNetwork
Mobile
Switching
Center
PDSN
HLR
RadiusAAA/Billing
IP/ATM Backbone Internet
Data Rates 60- 288 kbps
ApplicationServers
Gateway Mobile Switching Center
HA
Circuit Backbone
Circuit Backbone
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- Mobile Network Evolution to NGN — 19 All rights reserved © 2005, Alcatel
3G W-CDMA R3 (R99)
Cell
Cell
Cell Radio Node Controller
PublicTelephoneNetwork
Mobile Switching Center
SGSN
HLR
RadiusAAA/Billing
GGSNIP/ATM Backbone Internet
Data Rates 384 Kbps - 2 Mbps
Gateway Mobile Switching Center
Circuit Backbone
TDM/ATM/IP
Circuit Backbone
TDM/ATM/IP
ApplicationServers
- Mobile Network Evolution to NGN — 20 All rights reserved © 2005, Alcatel
>> What is NGN and how it applies in Mobile Networks?What is NGN and how it applies in Mobile Networks?
> Mobile Networks Architectures> 2G/3G Mobile Networks> NGN Evolution
> Why NGN?
Presentation Outline
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- Mobile Network Evolution to NGN — 21 All rights reserved © 2005, Alcatel
3G W-CDMA R4
Cell
Cell
Cell
Radio Node Controller
PublicTelephoneNetwork
Media Gateway
SGSN
HLR
ApplicationServers
IP over MPLS/ATM Backbone
InternetGGSN
SS-7
Data Rates 384 Kbps - 2 Mbps
Media Gateway
Mobile Softswitch
- Mobile Network Evolution to NGN — 22 All rights reserved © 2005, Alcatel
3G W-CDMA R5 (IMS)
Cell
Cell
Cell
Radio Node Controller
PublicTelephoneNetworkMedia
Gateway
SGSN
HLR
ApplicationServers
IP over MPLS/ATM Backbone
InternetGGSN
SS-7
Data Rates 384 Kbps - 2 Mbps
Media Gateway
Mobile Softswitch
MMAS MMCF
MRF MGW
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- Mobile Network Evolution to NGN — 23 All rights reserved © 2005, Alcatel
3G CDMA 2000
Cell
Cell
Cell
Radio Node Controller
PublicTelephoneNetwork
Media Gateway
PDSN
HLR
ApplicationServers
IP over MPLS/ATM Backbone
InternetEdge Router
Mobile SoftswitchSS-7
Data Rates 2 - 5 Mbps
Media Gateway
- Mobile Network Evolution to NGN — 24 All rights reserved © 2005, Alcatel
>> What is NGN and how it applies in Mobile Networks?What is NGN and how it applies in Mobile Networks?
> Mobile Networks Architectures
> Why NGN?
Presentation Outline
13
- 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
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
GGSNSGSN
PacketData
Network
MSCMSC TDMNetwork
Internet
PSTN/PLMN
RANMGW
MSCserver
Internet
PSTN/PLMNRAN
MGW
MSCserver
TC
PacketNetwork
GGSNSGSN
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- Mobile Network Evolution to NGN — 27 All rights reserved © 2005, Alcatel
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
�No Need for Transit Layer MSC�Dynamic connection establishment between nodes�in ATM through SVC, in IP through routing
PacketBackbone
RNC/BSC
RNC/BSC
RNC/BSC
RNC/BSC
MSC MSCMSC
MSCtransit
Why NGN?1- Transport Network Simplification - No Transit Layer
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
MGWMGW MGW MGW
RNC/BSC
RNC/BSC
RNC/BSC
RNC/BSC
RNC/BSC
MSCserver
MSCserver
RNC/BSC
- Mobile Network Evolution to NGN — 28 All rights reserved © 2005, Alcatel
PacketBackbone
SCP HLR SCPHLR# 7 over IP (Sigtran)
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
�With Signalling over IP, no Need for Dedicated Signalling Network�simplification of transport network�improved resource use efficiency
MGWMGW MGW
RNC/BSC
RNC/BSC
RNC/BSC
RNC/BSC
MGW
Why NGN?1- Transport Network Simplification - Common Signalling/Packet Backbone
PacketBackbone
MSCserver
SCP HLR SCPHLR
MGWMGW MGW MGW
RNC/BSC
RNC/BSC
RNC/BSC
RNC/BSC
RNC/BSC
MSCserver
MSCserver
MSCserver
RNC/BSC
#7 over NB (E1 TDM)
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- Mobile Network Evolution to NGN — 29 All rights reserved © 2005, Alcatel
IP
�With IP in RAN in R5, Merge of CN & RAN IP Transport Networks �simplification of transport network�improved resource use efficiency
Why NGN?1- Transport Network Simplification - Common CN/RAN backbone
PacketBackbone
MGWMGW MGW MGW
RNC/BSC
RNC/BSC
RNC/BSC
RNC/BSC
RNC/BSC
MSCserver
SCP HLR SCPHLR
MSCserver
PacketBackboneMGWMGW MGW MGW
RNC/BSC
RNC/BSC
RNC/BSC
RNC/BSC
RNC/BSC
MSCserver
SCP HLR SCPHLR
MSCserver
ATM
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
Node B/BTS
- Mobile Network Evolution to NGN — 30 All rights reserved © 2005, Alcatel
�End to End AMR voice transport (3G/3G Call)
� Bandwidth optimisation� Transcoder saving� Voice quality improvement
AMR G711 (64 K bits/s per channel) AMR
R99
AMR (down to 15 K bits/s with ATM AAL2 per channel)
Node BRNC
MSCserver
TDMNetwork MSC
TC
MSC
TCNode B
RNC
NGN
Node BRNC
Node BRNCMGW
MSCserver
MGW
PacketNetwork
Why NGN?2- Bandwidth Saving
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- Mobile Network Evolution to NGN — 31 All rights reserved © 2005, Alcatel
� AMR in CN for 3G<->PSTN/2G PLMN Voice Call (R4)� Bandwidth optimisation
AMR G711 (64 K bits/s per channel)
R99
AMR (down to 15 K bits/s with ATM AAL2 per channel)
Node BRNC
MSCserver
TDMNetwork MSCMSC
TC
NGN
Node BRNC
MGW
MSCserver
MGW
PacketNetwork
PSTN/2G PLMN
TC
PSTN/2G PLMN
TC
TC
G711 (64 K bits/s per ch.)
Why NGN?2- Bandwidth Saving
- Mobile Network Evolution to NGN — 32 All rights reserved © 2005, Alcatel
Transport Bandwidth Efficiency (from R4 & beyond)
� 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
Why NGN?3- Bandwidth Saving (CS domain)
G711 overTDM
(reference)
kb/s per voice channel
kb/s per 64kb data ch.
AMR overATM AAL2
AMR overPOS IP V4
AMR overPOS IP V6
AMR overGE IP V4
AMR overGE IP V6
AMR overIP V4 over ATM AAL5
AMR overIP V6 over ATM AAL5
G711 overATM AAL2
64 15 34 44 49 59 51 51 85
64 85 121 141 151 171 153 204 N/A
transport type
kb/s per channel
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- Mobile Network Evolution to NGN — 33 All rights reserved © 2005, Alcatel
- IP over SDH more efficient than IP over ATM (10 to 20%)
Why NGN?3- Bandwidth Saving (PS domain)
256 byte IP packet
512 byte IP packet
IP over SDH
267 318
525 583
Transport type
Byte per packetIP over ATM AAL5
- Mobile Network Evolution to NGN — 34 All rights reserved © 2005, Alcatel
Why NGN?4- New Services Unified Services through standardized Interfaces
MGW
PSTN
UMTS CNPs/Cs
ServicePlatform
MGW
MSC/MM Server
Internet
� services independent ofaccess layer type(fixed, mobile, PC, Phone)
� one Service Platforms
whatever the access layer types(unlike IN, Voice Mail for Mobile, email for fixed Internet…)
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- Mobile Network Evolution to NGN — 35 All rights reserved © 2005, Alcatel
� IP as target transport layer with benefit of existing IP services�Merge and combination of existing services
Why NGN?4- New Services
�Standardized Video Communication (between fixed & mobile, video conferencing & video mail)
�Instant Messaging
�Unified messaging one mail box whatever the message (voice, text, video) & device type
�Multimedia Messaging
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� �� �
- Mobile Network Evolution to NGN — 36 All rights reserved © 2005, Alcatel
Why NGN?
CAPEXOPTIMIZER
CAPEXCAPEXOPTIMIZEROPTIMIZER
REVENUEASSURANCE
REVENUEREVENUEASSURANCEASSURANCE
OPEX OPTIMIZER
OPEX OPEX OPTIMIZEROPTIMIZER
Transport Network SimplificationTransport Network SimplificationTransport Network Simplification
Bandwidth SavingBandwidth SavingBandwidth Saving
Higher Network ScalabilityHigher Network ScalabilityHigher Network Scalability
New ServicesNew ServicesNew Services
� �� �� �� �� �� �� �� �� �� �� �� � � �� �� �� �� �� �� �� �� �� �� �� �
� �� �� �� �� �� �� �� �� �� �� �� � � �� �� �� �� �� �� �� �� �� �� �� �
� �� �� �� �� �� �� �� �� �� �� �� � � �� �� �� �� �� �� �� �� �� �� �� �
� �� �� �� �� �� �� �� �� �� �� �� �
SummarySummarySummary
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- Mobile Network Evolution to NGN — 37 All rights reserved © 2005, Alcatel
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 (fixed, mobile, PC, Phone)
> News Services (Merge and combination of existing services):� Standardized Video Communication� Unified messaging� Multimedia Messaging
� Instant Messaging
www.Itu.Imt/ITU-BDT
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