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Wireless Evolution in Core &RadioMika Ahlholm, Hanoi, December 2005
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Outline
Major Trends in Voice Evolution Evolution Towards VoIP
What Is NGN in Mobile Networks?
IMS and Fixed-Mobile Convergence
Targeting the All-IP Network
Radio Access Technology Evolution
HSDPA, WLAN, WiMAX
Beyond 3G: 3Gplus, OFDM
Presented by Mika Ahlholm
Manager, Technical Sales
Mobile Networks Center of Competence, Bangkok
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Major Trends Shift of Voice Traffic (Minutesof Use)
WLAN/WIMA
X
Mobile Voice(CS)
PSTN
PSTNCellular
Radio
Mobile Data(PS)
Mobile Data(PS)
Fixed DSL
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IP backbone
Outlook of Mobile Network Architecture Today
SIPServices
ApplicationsCharging
Charging
IMS
IMS
RAN
RAN
MobileVoice(CS)
MobileVoice(CS)
Mobile Data(PS)
Mobile Data(PS)
WLAN/WIMAX
FixedDSL
PSTN
PSTN
Internet
Internet
MGCF PDF/CRF
Common
Database
Common
DatabaseHLR
HSS
MSC-SMGW
GGSNMGW
CSCF
SGSN
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Major Trends Voice Evolution
CS domain remains predominant for mobile voice wellinto the next decade
Operators key differentiators are cost position and voicequality
IMS becomes uniform service control for all types of
traffic in long-term Introduction is driven by new multimedia services
IMS is multimedia soft switch
IMS will be used for voice applications (e.g. PoC or rich
voice) Migration to SIP controlled voice via IMS will start with wire
line and alternate accesses (e.g. WLAN)
In the long run SIP controlled voice via IMS will replace theCS voice
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What Is NGN in Mobile Networks?
NGN blends the public switched telephone network(PSTN) and the public switched data network (PSDN)
Creates a single multi-service network
Not based on large, centralized, proprietary switchinfrastructures
Results in a distributed network infrastructure
Leverages new, open technologies to reduce the cost ofmarket entry
Increase flexibility
Accommodate both circuit-switched voice and packet-switched data
Soft-switching technology
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Softswitch Network Architecture
ServicesServices ServicesServices ServicesServices
SoftswitchSoftswitch
MGWMGW RASRAS IADIAD
MGCP, SIP
SIP, XML, Parlay
SIP, ISUP, H.323
RAS RemoteAccess ServerIADIntegrated
Access Device
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Advantages of Softswitching www.softswitch.org
Solutions come from asingle vendor that suppliedeverything in one
proprietary box: software,hardware and applications
Customers were locked-in totheir vendor no room forinnovation, expensive toimplement and maintain
Circuit-Switched
Transport
Hardware
Call Control &
Switching
Services &
Applications
P
R
O
P
R
I
E
T
AR
Y
Solutions can come frommultiple vendors, at alllevels who supply open
standards-based productsCustomers are free tochoose best-in-classproducts to build theirnetwork. Open standardsenable innovation and
reduce costs
Soft-Switched
Transport Hardware
Softswitch Call Control
Services, Applications & Features
(Management, Provisioning and
Back Office)
Open Protocols APIs
Open Protocols APIs
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NGN in Mobile Networks
For CS domain NGN = R4 R4 specifies the separated architecture (MSC-S and MGW)
For CS domain FMC = R5/R6
Introduction of MGCF in the MSC/MSC-S
IMS is NGN IMS is the control layer (CSCF, HSS)
Open interfaces (e.g. SIP)
3GPP R5
Various access methods
GERAN, UTRAN, WLAN, DSL
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TISPAN:
Telecommunications and InternetconvergedServices andProtocols forAdvancedNetworking
Fixed-Mobile Convergence Standardization
ETSIIETF
SIP
May 2005
IMS
SIP
3GPP
IMS
SIP
Mobile Fixed
Rel 5. 2003
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The Position and Role of IMS
DSL2.5G
3rd party applications
and content
Movies Music Information Infotainment
Operator services
and applications
Push and talk Location based
services Converged Centrex Presence services
3G Fixed lineBroadband WirelessAccess
Control
IP-based
Multimedia Subsystem
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New Technologies & Innovation in CoreNetwork
Network consolidation on IP and standard components.New technologies enable service centric operation.
Central policydirectories
E2E policyenforcement
Policy brokerage
Flexible servicedefinition
olicy Based
ulti-Service Networking
Universal plug & play ofnetwork elements Autonomous address
assignment Autonomous network
element configuration Service-centric operation
elf Organizing Networks Access Awareness
Unified multi-service
core network inheterogeneousaccess landscape
Policy-compliantbest access selection
Cost efficient servicedelivery
Distributed Architecture Cross-application
subscriber dataconsolidation
Network-wide database Cost efficient subscriber
management
Common Network
Technology Database
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Radio Access TechnologyEvolutionMika Ahlholm, Hanoi, December 2005
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WiMAX
Multi Carrier- OFDM
Rel. 99
1xEV-DV
Flash-OFDM1xEV-DO
1xRTT
IS-95
GPRS EDGE
GSM
(first release)
1990
Narrowband(TDMA)
Wideband
(W-CDMA)
Flash-OFDM(CDMA)
Broadband(OFDM)
WiMAX,3Gplus
HSDPA
1995 2000 2005 2010
Limit 1200 kHz
Limit 21,25 MHz
Limit 35 MHz
Limit 5> 20 MHzLimit 420 MHz
4G
RAN Evolution Speeds Beyond Current Limits
Performance
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GPRS 40-75 kbit/sGSM 9,6 kbit/s
Performance of Fixed-line vs. MobileTechnologies
andwidth (bit/s)
peak user data rates]
1990 1995 2000 2005 2010
100k
1M
100M
1G
10G
Cable40-50 Mbit/s
ADSL
3-8 Mbit/s
VDSL
50 Mbit/s
FTTH
155 Mbit/s
Fixed Access
10M
Mobile Access
EDGE 220-384 kbit/s
WCDMA 2 Mbit/s
HSDPA 10 Mbit/s
3Gplus 100 Mbit/s
4G 1 Gbit/s
ISDN-BRI2X64+16 kbit/s
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Complementary Radio Access Technologies Capacity,Coverage and Cost
Mb/s101 1000.1 103 104
IEEE802.16a,d
HSDPA
IEEE802.16e
WLAN(IEEE 802.11x)
FlashOFDM
(802.20)
3Gplus
W-CDMA
GSMGPRS
DECT
EDGE
BlueTooth
EV-DOEV-DV
CDMA
WiMAX 4G
stationary
nomadic
mobile
portable/
walking
mobile
d
riving,
degreeof
mobility
Ethernet (Twisted Pair)
Ethernet (Fiber)
MNO
FNO
MetroSuburban SuburbanRural Rural
80% of
traffic in
20% of area
EDGE /
GSM
UMTS/
HSxPA /
3Gplus
WLAN /
WiMAX/
3Gplus
F-OFDM
450 MHz
Capacity drivenCoverage driven Coverage driven
deployment
EDGE /
GSM
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3G plus: Key Enhancements & PerformanceAspects
High Maximum
Data Rate
High data rates in difficult radio environments (e.g. severe timedispersion)
High data rates at high terminal speed
High data rates with wide-area coverage (with reasonableoutput power)
High peak downlink air interface rate (100 Mbps with 20 MHzspectrum)
Low Round TripDelay
RAN latency: 10 ms PS core latency: < 10 ms
High SystemCapacity
Improved spectral efficiency [Mbps per MHz per cell]
Advanced antenna solutions
Efficient operation with small cells
FlexibleSpectrumManagement
Very large maximum transmission bandwidth
Multiple frequency bands
Designed for IPtraffic
Efficient support of the various types of services, especiallyfrom the PS domain (e.g. Voice over IP, Presence)
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Key Technologies for Systems Beyond 3G
Data Rates of 1 Gbps are achieved Existing commercial HW can cope with the
technical complexity Air interface will cease to be the performance bottleneck
Increased spectrum capacitythrough scalable data rates
Low complexity
Efficient broadband datatransmission
OFDM
OrthogonalFrequency Division
Multiplexing
WLAN
WLAN
GSM/EDGE
GSM/EDGE
3Gplus
3Gplus
WiMAX
WiMAX
4G4G
UMTS/HSDPA
UMTS/HSDPA
Reconfiguration/multi-standard Flexible spectrum management Device and base station negotiate
appropriate access
SDR
Software DefinedRadio
Multiple antennas to transmit andreceive radio signals
Boosts data transmission speed bynumber of transmitting antennas
Robustness of range (allows non line-of-sight connectivity, e.g. indoor)
MIMO
Multiple Input,Multiple Output
Increase coverage by multi-hop nodes and intelligentrouting
Fast deployment Reduced infrastructure
costs
Multi-HopMulti-hop
Node
Multi-hop
Node
TerminalTerminal
Access PointAccess Point
MHN
Internet AP
Server
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Conclusion Network Architecture in 2012
4G /Multi-Hop
CPSCPSeNode
B
eNode
BUTRAN-Evolution(3GPlus)
WLAN
AP
WLAN
AP
WiMAX
BS
WiMAX
BS
Legacy CS
domain
Unified IP Multimedia
Network
Common Data
Repository PolicyDirectory
User Profiles
Service Delivery Framework
eGSN enhanced GPRS Support NodePLMN - Public Land Mobile NetworkPSTN - Public Switched Telephony Netwo
xDSL
PSTN
PLMN
other
PLMN
Internet
Intranet
IMS
Common
Session Control
MGW
eGSN
CS Circuit SwitchedIMS IP based Multimedia SubsystemMGW Media Gateway
AP Access PointBS Base StationCPS Control Plane Server
Broadband
WirelessAccess
GERANUTRAN
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Thank You for Your Attention!
ika [email protected] 2 715 4207
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