doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 1 Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [MultiBand OFDM Update and Overview] Date Submitted: [ 17 November, 2004] Source: [Matthew B. Shoemake] Company [WiQuest Communications, Inc.] Address [8 Prestige Circle, Suite 110, Allen, Texas, USA 75002] Voice:[ ], FAX: [ ], Re: [MultiBand OFDM Proposal, doc ] Abstract:[This presentation provides an overview of the MultiBand OFDM proposal. Details of the actual proposal may be found in document This presentation provides high level technical details of the MultiBand OFDM proposal. It attempts to communicate what MultiBand OFDM is, why key technical decision were made, how the solution functions and who key supporters of the proposal are.] Purpose:[To inform voters of the merits of MultiBand OFDM thereby allowing them to make an informed vote in the IEEE a technical selection procedure.] Notice:This document has been prepared to assist the IEEE P 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 P

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 2 Introduction The purpose of this document is to provide an overview of MultiBand OFDM (doc ) including –Technical characteristics and advantages –Identification of key supporters –References to supporting material –That this proposal meets the TG3a PAR.

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 3 Proposal Overview The MultiBand OFDM proposal: –Is based on proven OFDM technology Used in IEEE a and g –Achieves data rates of 53.3 to 480 Mbps –Support for 4 to 16 simultaneous piconets –Spectrum easily sculpted for international regulatory domain compliance –Is easily extensible for future range/rate improvements

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 4 Frame Format PLCP Preamble –Deterministic sequence –Allows packet detect and piconet identification PLCP Header –Encoded at 53.3 Mbps –Contains reserved bits for future extensions Payload –Coded at 53.3 to 480 Mbps Each frame contains multiple OFDM symbols PLCP Preamble PHY Header MAC Header HCS Tail Bits Tail Bits Pad Bits Frame Payload Variable Length: 0  4095 bytes Pad Bits Tail Bits FCS 53.3 Mb/s PLCP Header 53.3 *, 80, 110 *, 160, 200 *, 320, 400, 480 Mb/s * - Mandatory Rates

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 5 Encoder DDDDDD Output Data A Output Data B Output Data C Scrambler 64-State BCC 3-Stage Interleaver IFFT QPSK Mapper DAC Time Frequency Kernel Error Control Coding Standard 64-State Binary Convolutional Code Punctured to achieve various data rates Puncturer IFFT 128 points 100 data, 12 pilot, 10 guard, 6 null NULL #  61 #  #  1 #61 #2 # Frequency-Domain Inputs Time-Domain Outputs

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 6 Packet at Baseband Each OFDM symbol is ns long containing: ns null cyclic prefix ns of data transmission ns guard Number of OFDM Symbols: - Packet sync: 21 - Frame sync: 3 - Channel estimation: 6 - PLCP header: 12 - Payload: Variable (54 at left)

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 7 Spectrum As characteristic of OFDM systems, signal roll-off is sharp yielding excellent adjacent channel interference characteristics DAC converter rate = 528 MHz Tone width = MHz Instantaneous Bandwidth ≈ 123 * MHz = 507 MHz

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 8 Band Groups f 3432 MHz 3960 MHz 4488 MHz Band #1 Band #2 Band #3 Spectrum is divided into 14 bands Bands are spaced at 528 MHz Five band groups are defined Enables structured expansion Each Time Frequency Code (TFC) corresponds to a Logic Channel Logical Channels enable Simultaneously Operating Piconets (SOPS) Four SOPS are enabled on Band Group1

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 9 AWGN Performance Noise Bandwidth ≈ 500 MHz Noise Floor ≈ -87 dBm

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 10 Enhancements to Proposal Changes made since July 2004: –55 Mbps changed to 53 1/3 Mbps –Lower PAR Channel Estimation sequence included –Mapping of data tones onto guard tones

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 11 Features Regulatory –Meets FCC requirement for 500 MHz minimum bandwidth, without adding noise to guard tones –Maximally flexible for regulatory expansion due spectral sculpting capability Robustness –Time Frequency Coding provides frequency diversity gain and robustness to interference

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 12 System Performance (3-band) The distance at which the Multi-band OFDM system can achieve a PER of 8% for a 90% link success probability is tabulated below: Includes losses due to front-end filtering, clipping at the DAC, ADC degradation, multi-path degradation, channel estimation, carrier tracking, packet acquisition, no attenuation on the guard tones, etc. RangeAWGN LOS: 0 – 4 m CM1 NLOS: 0 – 4 m CM2 NLOS: 4 – 10 m CM3 RMS Delay Spread: 25 ns CM4 110 Mbps21.5 m12.0 m11.4 m12.3 m11.3 m 200 Mbps14.8 m7.4 m7.1 m7.5 m6.6 m 480 Mbps9.1 m3.2 m3.0 mN/A

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 13 Signal Robustness/Coexistence Assumption: Received signal is 6 dB above sensitivity. Values listed below are the required distance or power level needed to obtain a PER  8% for a 1024 byte packet at 110 Mb/s and operating in Band Group #1. Coexistence with IEEE b and Bluetooth is relatively straightforward because they are out-of-band. Multi-band OFDM is also coexistence friendly with both GSM and WCDMA. –MB-OFDM has the ability to tightly control OOB emissions. InterfererValue IEEE 2.4 GHz d int  0.2 meter IEEE 5.3 GHz d int  0.2 meter Modulated interferer SIR  -9.0 dB Tone interferer SIR  -7.9 dB

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 14 PHY-SAP Throughput Assumptions: –MPDU (MAC frame body + FCS) length is 1024 bytes. –SIFS = 10  s. –MIFS = 2  s. Assumptions: –MPDU (MAC frame body + FCS) length is 4024 bytes. Number of frames Mb/s 1Mode 1: 80.4 Mb/sMode 1: Mb/sMode 1: Mb/s 5Mode 1: 88.7 Mb/sMode 1: Mb/sMode 1: Mb/s Number of frames Mb/s 1Mode 1: 98.5 Mb/sMode 1: Mb/sMode 1: Mb/s 5Mode 1: Mb/sMode 1: Mb/sMode 1: Mb/s

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 15 PHY Complexity Unit manufacturing cost (selected information): –Process: CMOS 90 nm technology node in –CMOS 90 nm production will be available from all major SC foundries by early Die size for the PHY (RF+baseband) operating in Band Group #1: Active CMOS power consumption for the PHY (RF+baseband) operating in Band Group #1 : ProcessComplete Analog*Complete Digital 90 nm3.0 mm mm nm3.3 mm mm 2 * Analog Component area. ProcessTX (53.3 Mb/s)TX (110, 200 Mb/s)RX (53.3 Mb/s)RX (110 Mb/s)RX (200 Mb/s) 90 nm85 mW128 mW147 mW155 mW169 mW 130 nm104 mW156 mW192 mW205 mW227 mW

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 16 Support of range measurements Location awareness is optional in TG3a –Ranging is one-dimensional location awareness The MB-UWB PHY supports 'Time-of-Arrival' ranging –Two Way Time Transfer, from a –Similar to 'DTOA' described in DS-UWB (8.17/030154r3) – see 2/ a for TOA ranging description PHY resources are described in section 1.7 of a –add a fast timer –minimum resolution of ~ 60cm (528 MHz clock) –crystal tolerances support ~ 30 cm (1056 MHz clock) –optional support to ~ 7 cm (4224 MHz clock)

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 17 MB-OFDM Support MultiBand OFDM has an unprecedented level of support and serves the needs of: –Major Personal Computer manufacturers –Major Mobile Phone manufacturers –Major Consumer Electronics manufacturers –Major Software companies –Component manufacturers –Test equipment manufacturers

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 18 MB-OFDM Advantages MB-OFDM Piconets Supported16 Extendable to high rate/longer range Yes, via industry standard techniques Coding64-State Binary Convolutional Code Regulatory FlexibilityHigh Clear Channel AssessmentRobust, Preamble-based and Non-preamble-based Mechanism Multipath ImmunityInherent from OFDM Spectral Sculpting Industry Support WiMedia Support Exploits Moore’s Law

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 19 Previous Submissions (1 of 2) 1.MB-OFDM Update and Overview, Matthew B. Shoemake (WiQuest), doc WiQuest 2.MB-OFDM Specification, Anuj Batra (Texas Instruments), et al., doc Texas Instruments 3.Market Needs for a High-Speed WPAN Specification, Robert Huang (Sony) and Mark Fidler (Hewlett Packard), doc SonyHewlett Packard 4.MB-OFDM for Mobile Handhelds, Pekka A. Ranta (Nokia), doc Nokia 5.In-band Interference Properties of MB-OFDM, Charles Razzell (Philips), doc Philips

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 20 Previous Submissions (2 of 2) 6.Spectral Sculpting and Future-Ready UWB, David Leeper (Intel), Hirohisa Yamaguchi (TI), et al., doc CCA Algorithm Proposal for MB-OFDM, Charles Razzell, doc What is Fundamental?, Anuj Batra, et al., doc Time to market for MB-OFDM, Roberto Aiello (Staccato), Eric Broockman (Alereon) and David Yaish (Wisair), doc StaccatoAlereonWisair

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 21 Select References , MultiBand OFDM September 2003 presentation, Anuj Batra , MultiBand OFDM Physical Layer Presentation, Roberto Aiello and Anand Dabak , MultiBand OFDM January 2004 Presentation, Roberto Aiello, Gadi Shor and Naiel Askar , C-Band Satellite Interference Measurements TDK RF Test Range, Evan Green, Gerald Rogerson and Bud Nation , Coexistence MultiBand OFDM and IEEE a Interference Measurements, Dave Magee, Mike DiRenzo, Jaiganesh Balakrishnan, Anuj Batra , Video of MB-OFDM, DS-UWB and AWGN Interference Test, Pat Carson and Evan Green

doc.: IEEE r2 Submission 11/17/2004 Matthew B. Shoemake, WiQuestSlide 22 Summary Inherent Multipath Capture and Immunity High Performance Error Control Range/rate extendable Spectral Sculpting for Global Expandability Superior channelization Low Cost and Power Consumption The MB-OFDM proposal meets or exceeds PAR requirements and selection criteria.