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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) PowerPoint Presentation
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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

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  1. May 2003 • doc.: IEEE 802.15-03137r2 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Sony CFP Presentation Date Submitted: 5May2003 Source:Etsumi Fujita, Katsumi Watanabe, Katsuyuki Tanaka, Bob Huang Mitsuhiro Suzuki, Shin Saito, Jun Iwasaki Company: Sony Corporation Sony Electronics of America Address: 6-7-35 Kitashinagawa Shinagawa-ku,Tokyo. Japan 141-0001 One Sony Drive TA-1 Voice: +81-3-6409-3201, FAX: +81-3-6409-3203 Park Ridge, NJ 07656 E-Mail: fujita@wcs.sony.co.jp, KatsumiA.Watanabe@jp.sony.com, V: 201-358-4409 Katsuyuki.Tanaka@jp.sony.com, suzuki@wcs.sony.co.jp, F: 201-930-6397 shin_saito@sm.sony.co.jp, junjun@wcs.sony.co.jp EMail: robert.huang@am.sony.com Re:02/372r8 of 17 January 2003, 03/138r1 Sony CFP Document of 5 May 2003 Abstract: This presentation provides detailed information on a unique UWB proposal. Purpose: This material is submitted to support a unique UWB proposal. 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. Fujita, et al, Sony Corp., Sony Electronics Slide 1 Submission

  2. Mobile Home Memory Stick Internet i.LINK Network Services Sony UWB PHY Presentation May 2003 Ubiquitous Technology Labs Sony Corporation

  3. FREQUENCY CHANNEL ALLOCATION 3 BAND IDEA DOUBLER FREQUENCY IDEA

  4. PULSE SHAPE AND SPECTRUM Simple Integer Amplitude EASY IMPLEMENTATION STABLE CHARACTERISTICS SATISFY FCC MASK Even without extra analog filter

  5. PULSE GENERATOR Prepare 4 waves of duty 50% 500[MHz] ON/OFF with different timing each other Add them with amplitude of { 2, 2, 2, -1 } respectively.

  6. PRE-EQUALIZED PULSE SHAPE PRE-EQUALIZED PULSE Tx Pulse After analog filters at ADC input PERFECTLY SATISFY NYQUIST CONDITION

  7. CHIP RATE AND CARRIER FREQUENCY ONE OSCILLATOR ENABLE EASY AND PRECISE TRACKING Pulse Position Tracking is automatically done by Carrier Phase Tracking

  8. PI/2 SHIFTED BPSK MAXIMIZE SYMBOL(CHIP) RATE Without pulse overlap between adjacent chip in I and Q respectively MINIMIZE INTER SYMBOL(CHIP) INTERFERENCE NEAR CONSTANT ENVELOPE

  9. RF CONFIGURATION VERY SIMPLE and SMALL LOW POWER CONSUMPTION ALL FUCTIONAL PROCESSING BY DIGITAL

  10. RF POWER CONSUMPTION RX RX RX RX RX TX CMOS 0.18[um] TX RX TX RX 135[mW] ( for from 20[Mbps] to 1000[Mbps] ) TX 56[mW] ( for from 20[Mbps] to 1000[Mbps] )

  11. PHY BURST FORMAT NORMAL STYLE SHORT PREAMBLE (7.68[us]) Constant length even in the worst channel condition

  12. PREAMBLE FORMAT NOT USE LESS THAN 1[us] PERIODIC PATTERN Short periodic pattern will not be used because it will generate spectral lines

  13. SIGNAL DETECT / SYNCHRONIZATION USING SHORT PREAMBLE (7.68[us]) Constant even in the worst channel condition NOT USING ANY “GROPE” METHOD e.g. Sliding Correlation, Coarse detection and Precise detection CHANNEL SNAP SHOT ( Coherent Channel Measurement )

  14. CHANNEL SNAP SHOT Actual measured results (CM3) by RTL simulation 128[ns] period, 250[ps] resolution CERTAIN SIGNAL DETECTION / SYNCHRONIZATION No lost the all of multi-path

  15. RAKE RECEIVER BY CSS Up to 8 ARMS Precise complex path amplitude

  16. RANGING BY CSS #Obtained from multi terminal system level simulation No lost the earliest path

  17. CHANNEL CONDITION ESTIMATION BY CSS USED for QUICK and PRECISE “LINK ADAPTATION”

  18. SYNC DETECTION INDEX BY CSS Signal Detection Index(SDI) is calculated from Channel Snap Shot Results SDI=10log(Signal Energy /Total Energy) Threshold can be clearly determined. (Note: Success of Signal Detection means success of Sync detection)

  19. SYNC DETECTION PROB. vs. S/N Lower limit of sync detection performance is obviously below lower limit of link performance.

  20. CODING AND SPREADING WIDE RANGE BIT RATE From 20[Mbps] to 1000[Mbps]

  21. CODING GAIN STRONGEST CODING K=7 Viterbi + RS(240,224,16) K=3 Viterbi + RS is useful 1/16 less complex than K=7 with 0.9[dB] degradation

  22. LINK ADAPTATION Quick ( burst by burst ) Precise ( Channel Snap Shot ) HIGH THROUGHPUT EFFECTIVE USAGE OF FREQUENCY RESOURCE

  23. RAKE COMBINING PERFORMANCE Multi-path amplitude Total receive signal Energy Signal energy after RAKE Multi-path interference enegy after RAKE Noise energy after RAKE Condition of Correct Decode Assumption: Nss=4, K=7 Viterbi + RS 110[Mbps] Transmission ( req.Es/No=-0.3[dB]) Allowable additive noise energy

  24. MULTI-PATH PERFORMANCE WITH RAKE CM1 8 Arms of RAKE can pick up almost signal energy CM2 110[Mbps] Transmission With K=7 Viterbi + RS ( req.Es/No=-0.3[dB])

  25. MULTI-PATH PERFORMANCE WITH RAKE CM3 8 Arms of RAKE can pick up almost signal energy CM4 110[Mbps] Transmission With K=7 Viterbi + RS ( req.Es/No=-0.3[dB])