november 2005 gary baldwin, sibeam, incorporated slide 1 submission doc.: ieee...

November 2005November 2005

Gary Baldwin, SiBEAM, IncorporatedGary Baldwin, SiBEAM, IncorporatedSlide Slide 11SubmissioSubmissionn

Doc.: IEEE 802.15-05-0672-00-003c (Rev 1 of 659)Doc.: IEEE 802.15-05-0672-00-003c (Rev 1 of 659)

Project: IEEE P802.15 Working Group for Wireless Personal Area NetworksProject: IEEE P802.15 Working Group for Wireless Personal Area Networks

Submission Title: [Update on WCA Petition to Change FCC Regulations Governing the Unlicensed 57 – 64 GHz Band]Date Submitted: [November 2005]Source: [Gary Baldwin] Company [SiBEAM, Inc.]Address [840 W. California Drive, Suite 110, Sunnyvale, CA 94086]Voice: [(408) 245-3120], E-Mail: [[email protected]]

Re: [WCA Petition RM-11104 Filed with FCC, September 2004]

Abstract: [Since the filing by the WCA of a proposed change in the regulations that govern the use of the unlicensed 57 – 64 GHz band, the IEEE has filed an opposing opinion. Members of 802.15.3cTG have since met with representatives of the WCA to seek common ground. This brief report summarizes progress to date.]

Purpose: [Contribution to 802.15 TG3c at November 2005 meeting in Vancouver]

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.




Summary Actions on WCA PetitionSummary Actions on WCA Petition

Gary Baldwin, Director of Corporate Gary Baldwin, Director of Corporate DevelopmentDevelopment

SiBEAM, Inc.SiBEAM, Inc.




Key 15.255Key 15.255regulations (existing)regulations (existing)

Radiation limits measured Radiation limits measured by power density in the far by power density in the far fieldfield

Power limited to 9 Power limited to 9 W/cmW/cm22 at 3 m (40 dBm EIRPat 3 m (40 dBm EIRP11))

Call sign ID required to Call sign ID required to identify interferers, indoors identify interferers, indoors and outdoorsand outdoors

57 – 64 GHz unlicensed band: 57 – 64 GHz unlicensed band: FCC Regulations Part 15.255FCC Regulations Part 15.255

WCAWCA petition petition22

1.1. Convert to EIRPConvert to EIRP11 instead of instead of power densitypower density

2.2. Increase to 82 dBm EIRPIncrease to 82 dBm EIRP11, , less 2 dBm for each dB less 2 dBm for each dB gain below 51 dBgain below 51 dB

3.3. Exempt indoor “window Exempt indoor “window links” from Call sign ID.links” from Call sign ID.

Note 1: Equivalent Isotropically Radiated PowerNote 2: Filed September 30, 2004: RM-11104




WCA petitioned FCC to change Part 15.255 (September 2004) Ex parte filings by various industrial groups (HP, SiBEAM, Freescale) IEEE 802 Standards Committee filed petition with FCC on August 23, 2005,IEEE 802 Standards Committee filed petition with FCC on August 23, 2005, opposing WCA petition on all three counts outlined above! opposing WCA petition on all three counts outlined above! WCA convened “mini-summit” to discuss petition and alternatives September 15, 2005

Brief History of Presentations and Brief History of Presentations and Actions on WCA PetitionActions on WCA Petition




Progress on the IssuesProgress on the Issues Substantive agreement on points 1 and 3: all agree that measurements should be made in the far field; and all would like to make field-programmable caller-ID an option.

Issue #2 still unsettled

It is the combination of antenna gain and radiated power, i.e., the potentially high EIRP, proposed in the WCA petition that concerned us the most.

The potential for scattered or reflected radiation is significant. Data show that as much as 50% of radiation incident on ordinary window glass can be reflected back. This could wreak havoc on a low-power 60 GHz system, operating within existing Part 15.255 regulations.




Calculations of Power Received by Calculations of Power Received by Unintentional Transmission through WindowsUnintentional Transmission through Windows

Tx Antenna Gain: 40 dBiO2 Attenuation: 0.013 dB/m

Tx Power: 22 dBmGlass Attenuation: 15 dB

Receive signal level (dBm as received by an indoor omni antenna)

Lateral meters Range meters from transmitterfrom recv target 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000

0 -56 -62 -67 -70 -72 -75 -76 -78 -80 -82 -83 -84 -86 -87 -88 -90 -91 -92 -93 -941 -65 -64 -67 -70 -73 -75 -77 -79 -80 -82 -83 -84 -86 -87 -88 -90 -91 -92 -93 -942 -76 -72 -70 -72 -74 -75 -77 -79 -80 -82 -83 -85 -86 -87 -89 -90 -91 -92 -93 -943 -81 -82 -76 -74 -75 -77 -78 -80 -81 -82 -84 -85 -86 -87 -89 -90 -91 -92 -93 -944 -82 -83 -83 -79 -78 -78 -79 -80 -82 -83 -85 -85 -87 -88 -89 -90 -91 -92 -93 -945 -82 -81 -89 -84 -82 -81 -80 -81 -82 -84 -85 -86 -87 -89 -89 -90 -92 -93 -94 -946 -85 -87 -87 -89 -85 -84 -82 -82 -83 -84 -86 -86 -88 -89 -90 -91 -92 -93 -94 -957 -88 -92 -84 -94 -90 -87 -86 -86 -84 -86 -86 -87 -88 -89 -90 -92 -92 -93 -94 -968 -92 -89 -88 -90 -93 -91 -89 -88 -88 -88 -87 -87 -89 -90 -91 -92 -93 -94 -94 -969 -95 -87 -92 -86 -96 -94 -91 -90 -90 -90 -89 -88 -89 -90 -91 -92 -93 -94 -95 -96

10 -99 -89 -96 -89 -93 -97 -94 -93 -91 -91 -91 -90 -90 -91 -91 -93 -93 -94 -95 -9611 -102 -90 -96 -92 -88 -99 -97 -94 -94 -93 -93 -92 -92 -93 -92 -93 -94 -95 -95 -9712 -102 -92 -93 -95 -90 -95 -99 -98 -96 -94 -94 -94 -94 -93 -94 -94 -95 -95 -96 -9713 -102 -94 -91 -98 -92 -92 -99 -99 -98 -96 -96 -96 -95 -95 -94 -96 -95 -96 -96 -9714 -102 -95 -92 -100 -95 -92 -97 -102 -99 -99 -97 -97 -97 -97 -96 -98 -97 -96 -97 -9815 -102 -97 -93 -98 -97 -94 -94 -101 -102 -101 -99 -99 -99 -98 -98 -98 -99 -98 -99 -9816 -102 -98 -94 -96 -99 -96 -93 -99 -104 -102 -101 -100 -100 -100 -100 -99 -99 -100 -99 -10017 -102 -100 -95 -94 -101 -98 -94 -96 -102 -104 -102 -102 -100 -100 -100 -101 -100 -100 -101 -10018 -102 -102 -96 -94 -102 -100 -96 -94 -101 -106 -104 -104 -102 -101 -101 -101 -102 -101 -101 -10219 -102 -103 -97 -95 -100 -102 -98 -96 -98 -104 -105 -105 -103 -103 -103 -102 -102 -103 -103 -10220 -102 -106 -98 -96 -99 -104 -99 -97 -96 -102 -107 -107 -105 -105 -104 -104 -104 -103 -104 -10421 -102 -108 -99 -97 -97 -105 -101 -99 -97 -99 -105 -108 -107 -106 -106 -106 -105 -105 -104 -10522 -102 -108 -100 -97 -97 -104 -102 -100 -98 -98 -104 -108 -108 -108 -106 -106 -105 -106 -106 -10523 -102 -108 -102 -98 -97 -102 -104 -101 -100 -99 -102 -107 -110 -108 -108 -107 -107 -106 -106 -10724 -102 -108 -102 -99 -98 -101 -106 -103 -101 -100 -101 -105 -108 -109 -109 -109 -108 -108 -107 -10725 -102 -108 -104 -100 -99 -100 -106 -104 -102 -101 -100 -104 -107 -111 -111 -109 -108 -108 -109 -108

Transmitted EIRP = 82 dBm – 2 dBm for each dBi of antenna gain below 51 dBi = 62 dBm

Source: Gregg Levin, Bridgewave CommunicationsSource: Gregg Levin, Bridgewave Communications




WCA petitioned FCC to change Part 15.255 (September 2004) Ex parte filings by various industrial groups (HP, SiBEAM, Freescale) IEEE 802 Standards Committee filed petition with FCC on August 23, 2005,IEEE 802 Standards Committee filed petition with FCC on August 23, 2005, opposing WCA petition on all three counts outlined above! opposing WCA petition on all three counts outlined above! WCA convened “mini-summit” to discuss petition and alternatives September 15, 2005 WCA will either withdraw petition or, at a minimum, modify petition Bridgewave (Levin) calculations to show unintentional impact of outdoor- mounted point-to-point links on indoor systems No further action to date

Brief History of Presentations and Brief History of Presentations and Actions on WCA PetitionActions on WCA Petition

november 2005 gary baldwin, sibeam, incorporated slide 1 submission doc.: ieee...

Documents