1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Sony CFP Presentation Date Submitted: 5 May 2003 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 141-0001One 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, 03/138r2 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. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 1

2. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 2 Sony UWB PHY Presentation Ubiquitous Technology Labs Sony Corporation May 2003 Mobile Internet Network Services Home i.LINK Memory Stick

3. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 3 IMPLEMENTATION LOSS BDMA (Band Division Multiple Access) as IMT-2000 candidate proposed by Sony The testbed lab measurement results in 1999 LINE: Simulation results DOT: Testbed measurement results NO IMPLEMENTATION LOSS UWB case (0.5[dB]) was analogized with some margin by this experience. “BDMA Testbed - Configuration and Performance Results –”, Takushi Kunihiro, Tomoya Yamaura, Mitsuhiro Suzuki, Etsumi Fujita, VTC99Spring. NOT UWB DATA

4. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 4 FREQUENCY CHANNEL ALLOCATION 3 BAND IDEA DOUBLER FREQUENCY IDEA Better one will be chosen.

5. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 5 PULSE SHAPE AND SPECTRUM Simple Integer Amplitude EASY IMPLEMENTATION STABLE CHARACTERISTICS SATISFY FCC MASK Even without extra analog filter (We will use extra analog filter )

6. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 6 PULSE GENERATOR(EXAMPLE) 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.

7. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 7 PRE-EQUALIZED PULSE SHAPE Tx PulseAfter analog filters at ADC input PRE-EQUALIZED PULSE PERFECTLY SATISFY NYQUIST CONDITION

8. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 8 CHIP RATE AND CARRIER FREQUENCY ONE OSCILLATOR Pulse Position Tracking is automatically done by Carrier Phase Tracking ENABLE EASY AND PRECISE TRACKING

9. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 9 PI/2 SHIFTED BPSK MINIMIZE INTER SYMBOL(CHIP) INTERFERENCE Without pulse overlap between adjacent chip in I and Q respectively MAXIMIZE SYMBOL(CHIP) RATE NEAR CONSTANT ENVELOPE

10. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 10 RF CONFIGURATION VERY SIMPLE and SMALL LOW POWER CONSUMPTION ALL FUCTIONAL PROCESSING BY DIGITAL

11. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 11 RF POWER CONSUMPTION CMOS 0.18[um] RX TX TX 56[mW] ( for from 20[Mbps] to 1000[Mbps] ) RX 135[mW] ( for from 20[Mbps] to 1000[Mbps] ) RX TX RX TX RX

12. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 12 DIGITAL CIRCUIT CONFIGURATION

13. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 13 PHY BURST FORMAT NORMAL STYLE SHORT PREAMBLE (7.68[us]) Constant length even in the worst channel condition

14. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 14 PREAMBLE FORMAT NOT USE LESS THAN 1[us] PERIODIC PATTERN because short periodic pattern will generate spectral lines

15. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 15 SPREAD SEQUENCE PREAMBLE PART PAYLOAD PART ( Long Code ) NOT SPECIAL

16. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 16 SIGNAL DETECT / SYNCHRONIZATION USING SHORT PREAMBLE (7.68[us]) CONSTANT LENGTH EVEN FOR WORST CHANNEL NOT USING ANY “GROPE” METHOD e.g. Sliding Correlation, Coarse detection and Precise detection CHANNEL SNAP SHOT ( Coherent Channel Measurement )

17. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 17 CHANNEL SNAP SHOT “ 5.12[us] exposure Snap Shot”s are obtained every 1.28[us].

18. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 18 A SNAP SHOT OF CHANNEL SNAP SHOT #Actual measured results obtained by cycle accurate simulation 128[ns] PRERIOD ( Correspond to 128 chip spreading ) 250[ps] RESOLUTION

19. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 19 SAMPLE PHASE SHIFT FOR CHANNEL SNAP SHOT 250[ps] resolution is achieved by sample phase shift ( Sample rate is always 1[GHz] )

20. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 20 SIGNAL DETECTION/ SYNCHRONIZATION DETECT CLUSTER OF ENERGY AT THE SAME TIME, SYNCHRONIZED Theoretically, any other better way?

21. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 21 RAKE RECEIVER BY CSS PRECISE COMPLEX AMPLITUDE AND TIMING OF THE PATHS UP TO 8 ARMS

22. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 22 RANGING BY CSS “PHY CLOSED FUNCTION” ( NO NEED MAC HELP ) #Obtained from multi-terminal system level and cycle accurate simulation

23. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 23 CHANNEL CONDITION ESTIMATION BY CSS USED for QUICK and PRECISE “LINK ADAPTATION”

24. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 24 SIGNAL DETECTION INDEX BY CSS Threshold can be clearly determined. (Note: Success of Signal Detection means success of Sync detection) Signal Detection Index(SDI) is calculated from Channel Snap Shot Results SDI=10log(Signal Energy /Total Energy)

25. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 25 SYNC DETECTION PROB. vs. S/N Lower limit of sync detection performance is obviously below lower limit of link performance. In almost case, signal can be detected below -5[dB] S/N

26. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 26 CODING AND SPREADING WIDE RANGE BIT RATE From 20[Mbps] to 1000[Mbps] K=3 Viterbi complexity is small and parallel implementation of it enables very high bit rate decoding with acceptable cost

27. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 27 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

28. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 28 CODING GAIN IN MULTIPATH CHANNEL Single carrier case, every symbol goes through exactly same channel response. No variance of symbol amplitude. CODING GAIN IS SAME AS THE GAIN IN AWGN CHANNEL. Required Eb/No is still 3.0[dB] in multi-path channel. ( K = 7 Viterbi and RS concatenation ) Generally, symbol amplitude variance ( e.g. by fading ) causes several dB’s degradation of coding performance.

29. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 29 DIGITAL RAKE COMBINER (EXAMPLE) #Input samples and processing is 8-paralleled in actual implementation. NO NEED MULTIPLE RF NO NEED MULTIPLIER

30. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 30 RAKE COMBINING PERFORMANCE Assumption: Nss=4, K=7 Viterbi + RS ( req.Es/No=-0.3[dB]) Multi-path amplitude Total receive signal Energy Signal energy after RAKE Multi-path interference energy after RAKE Noise energy after RAKE Condition of Correct Decode Allowable additive noise energy

31. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 31 MULTI-PATH PERFORMANCE WITH RAKE 8 Arms of RAKE can capture almost signal energy 110[Mbps] Transmission With K=7 Viterbi + RS ( req.Es/No=-0.3[dB]) CM1 More than 90% case, degradation is within 2.5[dB] compared to AWGN Less than 2% case, Es/Io is below 5[dB]

32. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 32 CM3 MULTI-PATH PERFORMANCE WITH RAKE 110[Mbps] Transmission With K=7 Viterbi + RS ( req.Es/No=-0.3[dB]) CM4 CM2

33. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 33 TRACKING CIRCUIT (EXAMPLE) 1. Carrier phase error can be detected by conventional way 2. Phase error compensation will be reflected to RAKE coefficients in every 1.28[us]. ( reduce complexity ) 3. Chip timing compensation is done by 1[GHz] clock phase shift ( 180[deg] carrier phase rotation corresponds to 1/8 chip timing error.)

34. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 34 LINK ADAPTATION Quick ( Burst by Burst ) Precise ( Channel Snap Shot ) HIGH THROUGHPUT EFFECTIVE USAGE OF FREQUENCY RESOURCE

35. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 35 15.3 MAC ENHANCEMENT 802.15.3 MAC ENHANCEMENT IS NOT REQUIRED. 802.11 MAC CAN ALSO BE APPLIED WITH SOME MODIFICATIONS. CAN BE EXTENDED TO MESH TYPE NETWORK.

36. May 2003 doc.: IEEE 802.15-03137r3 Submission Fujita, et al, Sony Corp., Sony Electronics Slide 36 THE END OF SLIDES Thank you!