Motorola CFA - High Rate

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					      July 2000                                                                 doc.:IEEE 802.15-00/206r1

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

Submission Title: [Physical Layer proposal for the High Rate 802.15 Standard]
Date Submitted: [July 2000]
Source: [Walt Davis] Company: [Motorola]
Address: [1303 E. Algonquin Road, Fourth Floor, Schaumburg, IL 60196]
Voice:[(847) 576-3311], FAX: [(847) 576-5292], E-Mail:[Walt.Davis@email.mot.com]
Re: [ PHY layer submission, in response of the Final Call for Proposal ]

Abstract: [This contribution is a WPAN proposal for a high performance 30 Megabit per second, 5GHz
system that addresses the requirements of a large number of wireless multimedia applications. The system is
based on proven, low cost RF technology at the Physical Layer level, and on an extension of the BlueTooth
TDMA protocol at the MAC layer. It provides for real-time transport of a number of real-time data streams
while offering the advantages of quick time to market via the use of proven technology and low system cost due
to the use of simple receivers and transmitters. It also provides for the low power drain that is essential for
personal portable applications by making extensive use of protocol based battery saving techniques.]

Purpose: [Response to WPAN-HRSG Call for Applications]

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.
      Submission                                      Slide 1                  Walt Davis, Motorola
July 2000                                doc.:IEEE 802.15-00/206r1




                    Motorola, Inc.
                      Physical Layer
             Submission to the IEEE P802.15
             Wireless Personal Area Networks
                High Rate Working Group




Submission                  Slide 2     Walt Davis, Motorola
  July 2000                                                doc.:IEEE 802.15-00/206r1


                Wireless Multimedia Application
• Basic Requirement:
      Enable the high-speed, wireless interconnection of
  consumer devices to support the transfer of large multi-media
  data files and high speed, real-time data streams.

• Typical Applications:
   – Video distribution from set-top boxes to remote
     TV sets, VCR to portable screen, computer to projector, etc.

   – In-home Internet connectivity from set-top boxes to
     personal devices and computers

   – Wireless video camera linkages

   – Wireless Audio and Video distribution for
     Home Theater Systems

  Submission                          Slide 3           Walt Davis, Motorola
  July 2000                                            doc.:IEEE 802.15-00/206r1


                    Wireless Multimedia Application
• Basic Requirement:
      Enable the high-speed, wireless interconnection of
  consumer devices to support the transfer of large multi-media
  data files and high speed, real-time data streams.

• Applications:
   – Low cost, high speed networking
         •     Communications devices to peripherals
         •     Computer to computer
         •     Computer to printer
         •     Digital camera to printer
         •     Appliance to appliance




  Submission                             Slide 4       Walt Davis, Motorola
  July 2000                                                  doc.:IEEE 802.15-00/206r1


                 Application Requirements
                               Categories

System                      Physical Layer                    MAC Layer
• Transparent System        • Operating Frequencies           • QoS
  Operation                 • RF Range / Coverage             • Security
• QoS                       • Number of channels              • Low Complexity
• Data Throughput Rate      • Channel Noise Immunity          • Low Development risk
• System Range / Coverage         – Error Tolerance           • Cost
• Cost                            – Delay Spread
• Security                           Tolerance
• Low Power                 • Security
• Low Complexity            • Co-existence / compatibility
• Low Development risk         with other systems
• Time to Market            • Operating frequency /
                               license requirements




  Submission                         Slide 5             Walt Davis, Motorola
   July 2000                                          doc.:IEEE 802.15-00/206r1


      Description of Physical Layer Submission
1. System Operation:

  Direct FM, Half-Duplex, isochronous operation that supports real-time
  multimedia data transport among up to 63 nodes. The system supports a mesh
  topology that allows peer-to-peer, point-to-point and point-to-multipoint
  operation.
2. Operating Frequencies:

  5.15 to 5.35 GHz (Unlicensed operation)

3. Modulation Technique:

  4-Level Direct FM with + 7.5 MHz peak deviation

4. Modulation Rate:
  15 MegaSymbols per second of Four Level FM = 30 Megabits per second.


   Submission                        Slide 6         Walt Davis, Motorola
July 2000                       doc.:IEEE 802.15-00/206r1


   Description of Physical Layer Submission
               Why Direct FM?




Submission           Slide 7    Walt Davis, Motorola
July 2000                             doc.:IEEE 802.15-00/206r1


   Description of Physical Layer Submission
Complex Modulation Schemes Require High S/N Ratios




Submission              Slide 8      Walt Davis, Motorola
July 2000                             doc.:IEEE 802.15-00/206r1


   Description of Physical Layer Submission
Complex Modulation Schemes Require High S/N Ratios




Submission              Slide 9      Walt Davis, Motorola
July 2000                                   doc.:IEEE 802.15-00/206r1


   Description of Physical Layer Submission
             Direct FM Operates at Low S/N Ratios




Submission                    Slide 10      Walt Davis, Motorola
July 2000                                   doc.:IEEE 802.15-00/206r1


   Description of Physical Layer Submission
             Direct FM Operates at Low S/N Ratios




Submission                    Slide 11      Walt Davis, Motorola
   July 2000                                          doc.:IEEE 802.15-00/206r1


      Description of Physical Layer Submission
1. System Operation:

  Direct FM, Half-Duplex, isochronous operation that supports real-time
  multimedia data transport among up to 63 nodes. The system supports a mesh
  topology that allows peer-to-peer, point-to-point and point-to-multipoint
  operation.
2. Operating Frequencies:

  5.15 to 5.35 GHz (Unlicensed operation)

3. Modulation Technique:

  4-Level Direct FM with + 7.5 MHz peak deviation

4. Modulation Rate:
  15 MegaSymbols per second of Four Level FM = 30 Megabits per second.


   Submission                        Slide 12        Walt Davis, Motorola
   July 2000                                                           doc.:IEEE 802.15-00/206r1


      Description of Physical Layer Submission
5. .Signal Bandwidth:
  12 MHz at –20 dB:




                                                            -20 dB BW
                                                               = ~ 12 MHz




                        -15 MHz   -7.5 MHz          +7.5 MHz +15 MHz

                        Spectrum of Transmitted Signal
   Submission                            Slide 13                      Walt Davis, Motorola
   July 2000                                                                                                             doc.:IEEE 802.15-00/206r1


      Description of Physical Layer Submission
6. .Number of Channels:
  13 channels spaced 15 MHz




                        f1 f2 f3 f4 f5 f6 f7 f8 f9 f10 f11 f12 f13
                5.150
                        5.160

                                5.175

                                        5.190

                                                 5.205

                                                         5.220

                                                                 5.235

                                                                         5.250

                                                                                 5.265

                                                                                         5.280

                                                                                                 5.295

                                                                                                         5.310

                                                                                                                 5.325

                                                                                                                          5.340
                                                                                                                                  5.350
                                                Channel Frequency in GHz

                                        Figure 3 Channel Frequencies



   Submission                                                            Slide 14                                    Walt Davis, Motorola
 July 2000                                               doc.:IEEE 802.15-00/206r1


    Description of Physical Layer Submission
7. .Antenna System:

  A simple array of very low cost directional antennas that can be etched patterns
  on the transceiver printed circuit board or substrate. (At 5 GHz, a quarter wave
  stub is 0.6 inches long)
                                       ~90 Beam Width




8. Delay Spread Protection:            Example of Directional Antenna Patterns

  The combination of the low capture ratio (5 to 6 dB) and the directional
  selectivity provided by the antenna system provide excellent immunity to multi-
  path generated delay spread.
 Submission                         Slide 15             Walt Davis, Motorola
    July 2000                                                                         doc.:IEEE 802.15-00/206r1


       Description of Physical Layer Submission
9. Receiver Architecture:

    Transceiver
   5.15-5.35 GHz        Receiver     280 MHz                280 MHz
                                       Filter            IF Demodulator
                                                                                                            Recovered
                                 A              A        Limiter       Discriminator         Level Sensor
                                                                                                              Data
  Antenna
             • •                       A
                                                                 VCO
  Selector
             • •                                               (f-280)/2

              T-R •     A    A
             Switch
                        Power                                                          Ref
                                                                A
                       Amplifier                                       Frequency       osc
                                                                A
                                                                       Synthesizer


                                        X2               A
                                                                                     Channel
                                                                    VCO               Setup
                      Transmitter                                    f/2

                                                                             Modulation Input

                                      Figure 5
                       Commercialized 5.15-5.35 GHz Transceiver

    Submission                                      Slide 16                         Walt Davis, Motorola
   July 2000                                                                doc.:IEEE 802.15-00/206r1


      Description of Physical Layer Submission
9. Receiver Architecture:

        Transceiver
       5.15-5.35 GHz        Receiver

                                     A
                                            ZERO I.F.               Recovered
                                          Amp/Filter/Demod.           Data
      Antenna
                 • •                       A
      Selector
                 • •
                  T-R •    A     A
                 Switch
                            Power                                                  Ref
                           Amplifier                                Frequency      osc
                                                               A
                                                                    Synthesizer


                                           X2              A
                                                                                  Channel
                                                                   VCO             Setup
                          Transmitter                               f/2

                                                                          Modulation Input

                                              Figure 6
                               Cost Reduced 5.15-5.35 GHz Transceiver

   Submission                                   Slide 17                   Walt Davis, Motorola
   July 2000                                               doc.:IEEE 802.15-00/206r1


      Description of Physical Layer Submission
10. Receiver Sensitivity:
   –90 dBm for 1E-4 BER

11. Transmitter Architecture:
   Conventional direct FM

12. Transmitter Power Output:

   200 milliwatts maximum

13. Operating System Range:

  >10 meters with <20 milliwatts output power for clear line-of-site operation

  >10 meters with <200 milliwatts output power for transmissions through
  obstacles


   Submission                          Slide 18            Walt Davis, Motorola
July 2000                                           doc.:IEEE 802.15-00/206r1


   Description of Physical Layer Submission
              Data Flow Model

              Tx_Signal                 Rx_Signal


               Source                    Source
               Encode                    Decode
               Encrypt                   Decrypt
              Channel                    Channel
              Encode                     Decode
              Modulate              Demodulate

              Transmit                   Receive

                          Channel




Submission                   Slide 19               Walt Davis, Motorola
July 2000                           doc.:IEEE 802.15-00/206r1


Manufactureability - Commercial 5 GHz System

                                5 GHz Transceiver




                                         MAC and I/O




Submission           Slide 20       Walt Davis, Motorola
July 2000                                                                                        doc.:IEEE 802.15-00/206r1
         General Solution Criteria Comparison Values

         CRITERIA             REF.                              Comparison Values
                                                -                        Same                       +
         Unit Manufacturing   2.1     > 2 x equivalent          1.5-2 x equivalent        < 1.5 x equivalent
         Cost ($) as a                Bluetooth 1               Bluetooth 1 value as      Bluetooth 1
         function of time                                       indicated in Note #1
         (when product                                          Notes:
         delivers) and                                          1. Bluetooth 1 value
         volume                                                 is assumed to be $20
                                                                in 2H2000.
                                                                2. PHY and MAC
                                                                only proposals use
                                                                ratios based on this
                                                                comparison
         Interference and     2.2.2   Out of the proposed       Out of the proposed       Out of the proposed
         Susceptibility               band: Worse               band: based on            band: Better
                                      performance than          Bluetooth 1.0b            performance than
                                      same criteria             (section A.4.3)           same criteria

                                      In band: -:               In band: Interference     In band: Interference
                                      Interference              protection is less than   protection is less
                                      protection is less than   30 dB (excluding co-      greater than 35 dB
                                      25 dB (excluding co-      channel and adjacent      (excluding co-channel
                                      channel and adjacent      and first channel)        and adjacent channel)
                                      channel)
         Intermodulation      2.2.3   < -45 dBm                 -35 dBm to –45 dBm        > -35 dBm
         Resistance

         Jamming              2.2.4   Any 2 devices listed      Handle Microwave,         Also handles 802.11 (a
         Resistance                   jam                       802.15.1 (2               and/or b)
                                                                scenarios) and
                                                                802.15.3
         Multiple Access      2.2.5   No Scenarios work         Handles Scenario 2        One or more of the
                                                                                          other 2 scenarios work


Submission                                                   Slide 21                           Walt Davis, Motorola
July 2000                                                                             doc.:IEEE 802.15-00/206r1


        General Solution Criteria Comparison Values

        CRITERIA             REF.                            Comparison Values
                                               -                     Same                         +
        Coexistence          2.2.6   Individual Sources:     Individual Sources:       Individual Sources:
        (Evaluation for each         0%                      50%                       100%
        of the 5 sources and
        the create a total           Total: < 3              Total: 3                  Total: > 3
        value using the
        formula shown in
        note #3)
        Interoperability     2.3     False                   True                      N/A
        Manufactureability 2.4.1     Expert opinion,         Experiments               Pre-existence
                                     models                                            examples, demo
        Time to Market       2.4.2   Available after         Available in 1Q2002       Available earlier than
                                     1Q2002                                            1Q2002
        Regulatory Impact    2.4.3   False                   True                      N/A
        Maturity of          2.4.4   Expert opinion,         Experiments               Pre-existence
        Solution                     models                                            examples, demo
        Scalability          2.5     Scalability in 1 or     Scalability in 2 areas    Scalability in 3 or
                                     less than of the 5      of the 5 listed           more of the 5 areas
                                     areas listed                                      listed




Submission                                            Slide 22                        Walt Davis, Motorola

				
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