November, 2003 S. David Silk, Motorola Slide 1 doc.: IEEE 802.15-<doc#> Submission Project: IEEE P802.15 Working Group for Wireless Personal Area N Project: IEEE P802.15 Working Group for Wireless Personal Area N etworks ( etworks ( WPANs WPANs ) ) Submission Title: [A mmW WPAN Concept] Date Submitted: [10 November 2003] Source: [S. David Silk] Company [Motorola] Address [1301 E. Algonquin Road, Schaumburg, IL 60196, USA] Voice:[(847) 576-0410], FAX: [(847) 538-4593], E-Mail:[[email protected]] Re: [mmW IG Call For Papers and Participation, IEEE P802.15-03/397r2] Abstract: [Description of document contents.] Purpose: [mmW IG November 2003 meeting contribution] Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.
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November, 2003
S. David Silk, MotorolaSlide 1
doc.: IEEE 802.15-<doc#>
Submission
Project: IEEE P802.15 Working Group for Wireless Personal Area NProject: IEEE P802.15 Working Group for Wireless Personal Area Networks (etworks (WPANsWPANs))
Submission Title: [A mmW WPAN Concept]Date Submitted: [10 November 2003]Source: [S. David Silk]
Company [Motorola]Address [1301 E. Algonquin Road, Schaumburg, IL 60196, USA]Voice:[(847) 576-0410], FAX: [(847) 538-4593], E-Mail:[[email protected]]
Re: [mmW IG Call For Papers and Participation, IEEE P802.15-03/397r2]
Abstract: [Description of document contents.]Purpose: [mmW IG November 2003 meeting contribution]Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for
discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.
November, 2003
S. David Silk, MotorolaSlide 2
doc.: IEEE 802.15-<doc#>
Submission
Evolution of WLAN/WPAN towards higher frequencies and higher throughput:
bridging 5 and 60GHz?
Motorola Labs – USA and FranceFrance Telecom R&D
November, 2003
S. David Silk, MotorolaSlide 3
doc.: IEEE 802.15-<doc#>
Submission
Motivation• Observation:
– Current WLAN/PAN technologies is an initial necessary step stone towards massive multimedia content wireless access in very dense urban environments
• One of the short range WLAN/WPAN goals:– Provide high multimedia reliable data links in the home but also complement and
enhance 3G network capabilities in order to provide public download hot spot services
• Challenge:– face large deployments of short range services and avoid spectrum congestion
• A solution worth considering:– need for higher capacity motivates the investigation of new bands providing a larger
amount of spectrum available
• Purpose of this presentation:– study possible extensions of existing short range solutions in the 60GHz band in order
to provide a solution to dense urban deployment granting nomadic terminal mobility in combination with higher throughput (300Mbps)
November, 2003
S. David Silk, MotorolaSlide 4
doc.: IEEE 802.15-<doc#>
Submission
0,01
0,1
1
10
100
1000
1996 1998 2000 2002 2004 2006 2008 2010product date
Max
dat
a ra
te (M
bps)
Local Area WLAN Nomadic Wide Area Cellular Vehicular PAN
80x
4 years
Application space
Video data rate
VoiceVoice
Text MessagingText Messaging
Still ImagingStill Imaging
Audio StreamingAudio Streaming
Video StreamingVideo Streaming
Ubiquitous TVInfotainment
Virtual Homes
High Speed Internet
PAN/LAN Convergence
2.4GHz
5GHz
60GHz
0.9-1.8GHz
IEEE802.11
HIPERLAN/1 802.11b
802.11a/g HIPERLAN/2
BroadWay: 60GHz
HSCD
GPRS
EDGE
3GPP
Bluetooth
HomeRF
IEEE802.15.3
IEEE802.11n (HTSG)UWB IEEE802.15.3a
0,01
0,1
1
10
100
1000
1996 1998 2000 2002 2004 2006 2008 2010product date
Max
dat
a ra
te (M
bps)
Local Area WLAN Nomadic Wide Area Cellular Vehicular PAN
80x
4 years
Application space
Video data rate
VoiceVoice
Text MessagingText Messaging
Still ImagingStill Imaging
Audio StreamingAudio Streaming
Video StreamingVideo Streaming
Ubiquitous TVInfotainment
Virtual Homes
High Speed Internet
Application space
Video data rate
VoiceVoice
Text MessagingText Messaging
Still ImagingStill Imaging
Audio StreamingAudio Streaming
Video StreamingVideo Streaming
Ubiquitous TVInfotainment
Virtual Homes
High Speed Internet
PAN/LAN Convergence
2.4GHz
5GHz
60GHz
0.9-1.8GHz
IEEE802.11
HIPERLAN/1 802.11b
802.11a/g HIPERLAN/2
BroadWay: 60GHz
HSCD
GPRS
EDGE
3GPP
Bluetooth
HomeRF
IEEE802.15.3
IEEE802.11n (HTSG)UWB IEEE802.15.3a
Short range technologies roadmap and evolutions: what is the next bold move?
November, 2003
S. David Silk, MotorolaSlide 5
doc.: IEEE 802.15-<doc#>
Submission
60GHz Spectrum panorama• Spectrum opportunity: 3GHz (59-62GHz) of bandwidth available worldwide
Japan
54 55 56 57 58 59 60 61 62 63 64 65 66
Europe
US
Frequency GHzTX power／Ant.Gain
Licensed Band
500mW×BW(MHz) / 100MHzDensity(ave.):9μW/cm2@3mDensity(peak):18μW/cm2@3m
(40dBm-eirp）
15dBW-eirp(45dBm-eirp)
10mW／47dBi(unlicensed)(57dBm-eirp)
100mW／20dBi(licensed)
Unlicensed Band
For Wireless LAN(BRAN)
Now,expansion of unlicensed band is examined in US.
For low power FWA
Unlicensed Band
November, 2003
S. David Silk, MotorolaSlide 6
doc.: IEEE 802.15-<doc#>
Submission
60GHz initiatives• Some relevant collaborative projects tackling with 60GHz…
– The early ACTS MEDIAN– The completed RNRT COMINDOR (Thomson, FTR&D)– The on-going IST BROADWAY: bridging the 5GHz and the 60GHz bands– The FP6 Magnet/Winner projects : specific PHY evaluation dedicated to short
range systems will be focused on mm-radio transmission
• Standardization groups– Japan: ARIB MMAC has considered the 60GHz band since the very beginning
of WLANs standardization– Europe: ETSI BRAN is discussing creation of working group on 60GHz– USA: IEEE 802.15 has created a 60GHz Interest Group at the July 2003
meeting!
November, 2003
S. David Silk, MotorolaSlide 7
doc.: IEEE 802.15-<doc#>
Submission
A possible solution for migrating towards higher frequencies: the BROADWAY project
• The vision:– extend and complement 5GHz broadband wireless LAN systems in the 60GHz
range for providing a new solution to very dense urban deployments and hot spotcoverage without sacrificing the user throughput expectations
– guarantee nomadic terminal mobility in combination with higher throughput• The key objectives:
– bridge the 5GHz band and 59-65GHz bands by conceiving a dual frequency hybrid WLAN
• granting smooth evolution from existing 5GHz OFDM to 60GHz• allowing backward compatibility to 5GHz systems• providing total system throughput >350Mbps through bandwidth expansion
– philosophy: restrict proliferation of heterogeneous technologies, 60GHz HIPERSPOT based on extensions of current 5GHz OFDM hardware
– leverage existing 5GHz products for a low cost 60GHz product
November, 2003
S. David Silk, MotorolaSlide 8
doc.: IEEE 802.15-<doc#>
Submission
System considerations for 5/60GHz operation• Dual mode 5/60 GHz access point (AP) covering both bands full time• Mobile terminals (MT) utilize one band at a time• At 60 GHz exploit P2P to achieve high data rate• Ad-hoc clustered architecture limited to 1-2 hops to alleviate shadowing effects• Manage ad-hoc networking using TDD friendly frame structure to preserve QoS• Address applications for vendor hot spots, public internet access, home, enterprise,
and campus environments
5 GHz
AP
60 GHz
MT
5 GHz
AP
MT2MT1
60 GHz
60 GHzMT3
November, 2003
S. David Silk, MotorolaSlide 9
doc.: IEEE 802.15-<doc#>
Submission
Broadway System• Possible architecture for dual-mode operation:
– Leverage centralized architecture, a clustered structure has been defined for peer-to-peer communications in the 60 GHz band
– The AP is responsible for the management of the system in both bands– Using a discovery and routing algorithm at 60 GHz the AP specifies clusters,
cluster heads, and forward nodes– DLC/CL protocol stack has also been specified for AP and MT
November, 2003
S. David Silk, MotorolaSlide 10
doc.: IEEE 802.15-<doc#>
Submission
PHY layer evolutions
• Alternate candidates– MIMO: IEEE802.11n (HTSG) spectrum efficient– UWB: IEEE802.15.3a
• Relevance for 60GHz:– Amount of spectrum available doesn’t require to
strive for spectrum efficiency– UWB is still regulatory challenged in some
regions
[ ] 1−F
)(0 kX
)(1 kX
)(1 kX N−
X(k)
)(0 kx
)(1 kx
)(1 kxN−
)(0 kc α⋅
)(1 kcD α⋅−
constantprefix
x(k) xig(k)
DACnx H(k) +
)(tx
nb
ADC)(tr nr
SP / PS /)(0 kr
)(1 kr
)(1 kr DN −+
r(k)
Dem
odul
atio
n &
Equ
aliz
atio
n
sest(k)
)(0 ksest
)(1 ksest
)(1 ksestN−
MODULATOR DEMODULATOR
modulationguard
intervalinsertion
parallel toserial conversion
digital toanalogue
conversion
channelconvolution
addnoise
analogue todigital
conversion
serial toparallel conversion
demodulationand
equalization
• Higher throughput solutions will definitively be ultra wide band for coping with link budget and granting enough range.
• Build on current technologies: muticarrier based solution?– maintain compatibility without sacrificing innovation
• research is constantly renewing OFDM: OFDM-CDMA, ZP-OFDM, PRP-OFDM, SC-OFDM…• frequency hopping over small number of bands: multiband OFDM?
– achieve full coverage through Single Frequency Networks with remote antennas solving the shadowing issues
– be robust in presence of multipath avoiding the system to collapse in extreme situations
Prefix⋅kα k# symbol OFDM Prefix1 ⋅+kα 1# symbol OFDM +k Prefix2 ⋅+kα 2# symbol OFDM +k
November, 2003
S. David Silk, MotorolaSlide 11
doc.: IEEE 802.15-<doc#>
Submission
Path Loss and Range Analysis for an OFDM solution compatible with 5GHz technologies
• Goal: maintain 5 GHz system carrier spacing– Limit channel bandwidth to multiples of 20 MHz (40 to 240 MHz) – Limit number of subcarriers from 64 to 768 for the various bandwidths– Limit sub-carrier spacing from 312.5 kHz to 625 kHz– Enable range of 2-4m using 240 MHz and 26 m using 20 MHz
• System parameters for preliminary range analysis– OFDM parameters:
• Carrier spacing: 625 kHz• Guard interval size: 800 ns• Oversampling rate 0.75
– Transmit power: 10 dBm– Antenna gain: GTx =3 dBi, GRx =3 dBi– Rx noise figure: 8 dB– Hardware impairment margin: 2 dB
November, 2003
S. David Silk, MotorolaSlide 12
doc.: IEEE 802.15-<doc#>
Submission
Path Loss and Range AnalysisContinued
• Conclusions:• For the enumerated system parameters 5m is achievable at 360 Mbps • For a given bit rate an increase in bandwidth is preferable over an increase in
constellation size to realize more range, i.e.– 180 Mbps with 64QAM, R=3/4, 80 MHz with 128 carriers → 3.3 m range – 180 Mbps with 16QAM, R=9/16, 160 MHz with 256 carriers → 6.6 m range – 160 Mbps with QPSK, R=1/2, 320 MHz with 512 carriers → 10.3 m range
Propagation loss for indoor and outdoor conditions
-120
-100
-80
-60
-40
-20
00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Distance (m)
Path
loss
(dB
)
60GHz Outdoor60GHz Indoor5GHz Indoor
Throughput of reference parameter sets
0100200300400
500600700800
20 80 240
Bandwidth in MHz
Thro
ughp
ut in
Mbi
ts/s
QPSK16QAM64QAM
November, 2003
S. David Silk, MotorolaSlide 13
doc.: IEEE 802.15-<doc#>
Submission
A dual band mobile terminal concept and technology trends
• 60 GHz MMIC realization has begun• Link budget at 5 and 60 GHz has been completed
Si SiGeGaAs
InP
1 GHz 10 GHz2 GHz 5 GHz 28 GHz 77 GHz
0
1
2
3
4
5Low Noise
Low Voltage
High Frequency
Wafer Size
High Breakdown VolatgeLow Cost
Reliability
High Pout
High Efficiency
MetamorphicInPGaAs PHEMTSi/SiGe
November, 2003
S. David Silk, MotorolaSlide 14
doc.: IEEE 802.15-<doc#>
Submission
Conclusions
• Motorola is interesting in contributing to the 60GHz mm wave interest group
• This contribution proposes an instanciation of a solution for migrating to 60GHz while maintainingbackward links with current 5GHz technologies
• 60GHz will likely be UWB because of the spectrumavailable: we need to define a rationale for pickingthe right modulation scheme.
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