next generation mobility: ofdm/mimo and flat networks nortel confidential information next...
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1 Nortel Confidential Information
Next Generation Mobility: OFDM/MIMO and Flat Networks
Jay Huang, Ph.D. Vice President, Mobility and Converged Core Networks – AsiaNortel
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Agenda •• What does mWhat does market arket want? want?
•• End user experience: No bandwidth limitation End user experience: No bandwidth limitation
•• End user experience: End user experience: Low latency Low latency
•• AffordableAffordable, A, Anytime, nytime, AAnywherenywhere
• How is it addressed?• Disruptive Air interface - OFDM/MIMO
• Disruptive network architecture - Flat IP
• Disruptive application platform - IMS
• Nortel’s visions and values• OFDM / MIMO
• Nortel powers up OFDM/MIMO with 7 years experiences
• Flexible broadband backhaul
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What does market want? (1)VOIP / VideoConference
IP TV Mobile TV
Voice callVideo Call
Personal data Personal Internet
Personal Entertainment - Video (Movie), Games
Advertisement
Digit/Mobile cityEnterprises, Security Force and M-commerce
No bandwidth limitation for any applications and services
• High peak rate
• High average throughput per user
End user experience: No bandwidth limitation at all
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What does market want? (2)
End user experience: Low latency & high throughput
GPRS/EDGE(TDMA)
EV-DO / HSDPA(CDMA)
WiMAX / LTE / AIE(OFDM / MIMO)
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Affordable by mass market• High capacity network
• Low complexity
• Low cost
Being connected anytime, anywhere• Wide area coverage
• High speed mobility
Affordable, Anytime, Anywhere
What does market want? (3)
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Agenda • What does market want?
• End user experience: No bandwidth limitation
• End user experience: Low latency
• Affordable, Anytime, Anywhere
•• HowHow is itis it addressaddressed?ed?•• Disruptive Air interface Disruptive Air interface -- OFDM/MIMOOFDM/MIMO
•• Disruptive network architecture Disruptive network architecture -- Flat IP Flat IP
•• Disruptive application platform Disruptive application platform -- IMSIMS
• Nortel’s visions and values• OFDM / MIMO
• Nortel powers up OFDM/MIMO with 7 years experiences
• Flexible broadband backhaul
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OFDM-MIMO is the trend
Freq
Time
1990 2000 2010
OFDM-MIMOWiMAX, AIE, LTE
FDMA(Analog)
TDMA(GSM)
CDMA(UMTS, CDMA2000)
Freq
Time
Freq
Time
Freq
Time
Voice onlyAnalogLow capacity
Voice + Basic DataDigital High capacity for voice
Voice + Better DataDigital High capacity for voice only
Broadband Voice/Video/ DataDigital (MIMO)High capacity for all services
Removing limitationon broadband usage
Experiencing Wireless Voice
ExperiencingWireless Broadband
Huge Success for Wireless Voice
Will be Huge Success for Wireless Broadband
ODFM-MIMO will enable wireless broadband
Removing limitationOn voice usage
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Key Technologies Breakthrough
> OFDMA: • Higher spectrum efficiency• Simplified Rx deign lower cost• Bandwidth flexibility
• 1.25 MHz to 20 MHz
> MIMO:• Multiple Tx and Rx antennas• MIMO improves peak rate,
spectrum efficiency and coverage through multiple paths
> Flat IP• IMS, VoIP, SIP• Mobile IP • Low latency
Nortel patented MIMO/OFDM was adopted by all major wireless standards
移动
本地
固定
UMTS / HSDPACDMA / EVDOWiMAX 16e
802.11, MeshWiMAX 16d
DSL / Cable
PSTN
Internet
Corporate
POTS
IP
Ethernet
OFDMMIMO
Mobility
接入网
IMSVoIPSIP
贺信网
Mobile
Fixed wireless
Fix
UMTS / HSDPACDMA / EVDOWiMAX 16e
802.11, MeshWiMAX 16d
DSL / Cable
PSTN
Internet
Corporate
POTS
IP
Ethernet
OFDMMIMO
Mobility
Access
IMSVoIPSIP
Core
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Network architecture revolution
RNCGGSN
GPRS/UMTS
LTE/HSOPA ASGW
RNC
SGSN
GGSN
SGSN
RNC
NodeB
Control plane User plane Control plane User plane
ASGW
eNodeB
MMFGGSN
SGSN
RNC/BSC
NodeB/BTS
Control plane User plane Control plane User plane
ASGW
eNodeB
MMF
Control plane User plane
ASGW
eNodeB
MMF
Broadband Oriented Network architecture
(2 layers)
Existing MobileNetwork Architecture
(4 layers)
Flat IP significantly reduce the latency &simply the network
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IMS Applications and Services
Rich set of proven services powered by IMS
3 2Trash Talk
Cellular WLAN
IPTV
Multiplayer Gaming Voice-Multimedia
Converged Mobility
WiMAX
Today
Tomorrow
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Agenda • What does market want?
• End user experience: No bandwidth limitation
• End user experience: Low latency
• Affordable, Anytime, Anywhere
• How is it addressed?• Disruptive Air interface - OFDM/MIMO
• Disruptive network architecture - Flat IP
• Disruptive application platform - IMS
•• NortelNortel’’s visions and valuess visions and values•• OFDM / MIMO OFDM / MIMO
•• Nortel powers up OFDM/MIMO with 7 years experiencesNortel powers up OFDM/MIMO with 7 years experiences
•• Flexible broadband backhaulFlexible broadband backhaul
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Why Nortel Mobile WiMAX?MIMO power WiMAX true performance
MIMO-enabledDevices
MIMO-enabledChipsets
MIMO-enabledInfrastructure
Leading PartnersLeading Partners
Access & IMSAccess & IMS
World-class partnersWorld-class partners
Real WiMAX isMIMO-enabled
OFDM/MIMO is clearly the “New Generation Wireless Technology”
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> Over 80 patents & patent applications on OFDM / MIMO alone> Standard essential patents for WiMAX 802.16d and 802.16e> Over 50% of 2004 3GPP OFDM Study Group Contribution> Significant 3GPP LTE Contributions> Active in promoting OFDM / MIMO for 3GPP2 Evolution > Ongoing effort on advanced topics : Collaborative MIMO, Virtual MIMO
Sub-carri
ers
Dedicated Traffic Data
time frequ
ency
propagation
channel
Time-slotted “Fat Pipe”
Nortel powers up OFDM / MIMOSynergies across 3GPP LTE, 3GPP2 OFDM/MIMO & WiMAX
7 years of OFDM/MIMO Research in Ottawa WTL
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Live network OFDM/MIMO experience since 2002
Nortel did the 1st OFDM/MIMO live network testing
7th floor location of Base Antenna
UCL Engineering Building, London
London – Dense Urban
7th floor location of Base Antenna
UCL Engineering Building, London
London – Dense Urban
12/3
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16/1712/13
10/11
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2/3
6/7
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12/13
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8/9
4/5
1920
3534
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32 33
26
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18
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2425
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Base Location, UCL
Base Antenna located on 7th floor roof of UCL Engineering building. Surrounding buildings typically 6-storey or more.
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Base Location, UCL
Base Antenna located on 7th floor roof of UCL Engineering building. Surrounding buildings typically 6-storey or more.
Harlow – SuburbanView from Base Site
Dense urban trial location
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Nortel WiMAX Backhaul - Flexibility
Carrier
Ethernet
BTS5000
BTS5000
WiMAXBTS 5000
• Mesh • Extend coverage, reduce costs• Redundancy, reliability• Reduces # of wired connections
• Optical • Dense urban areas, geo dependent
• High capacity• Re-use existing infras.
• Microwave• Point to point• Partnerships
Mesh Backhaul
BTS w/ Fiber
BTS w/ Mesh
BTS w/ Mesh
BTS w/ Mesh
BTS w/ Fiber
BTS w/ Mesh
BTS w/ Mesh
BTS w/ Mesh
BTS w/ Fiber
BTS w/ Mesh
BTS w/ Mesh
BTS w/ Fiber
BTS w/ Fiber
BTS w/ Fiber
BTS w/ Fiber
Metro ERS8600 OME
6500
OME 1010
Optical
Ethernet
OME 6130
Field Proven, OPEX Savings