doc.: IEEE 802.11-15/0174r1

Submission

January 2015

Jim Lansford, CSR TechnologySlide 1

IEEE 802.11 Regulatory SCDSRC Coexistence Tiger Team

Summary of activities since Nov F2F

Date: 2015-01-15

Name Affiliations Address Phone email Jim Lansford CSR

Technology 100 Stirrup Circle Florissant, CO 80816

+1 719 286 9277 Jim.lansford@ieee.org

Authors:

doc.: IEEE 802.11-15/0174r1

Submission Jim Lansford, CSR Technology

AbstractSummary of activities in the IEEE 802.11 (Regulatory

Standing Committee) DSRC Coexistence Tiger Team since the November F2F in San Antonio, and plans for completion of the Tiger Team’s work.

January 2015

Slide 2

doc.: IEEE 802.11-15/0174r1

Submission

Background• FCC allocated 75MHz of spectrum in the 5.9GHz band (5850-

5925MHz) for Dedicated Short Range Communications (DSRC) in October 1999

 In FCC NPRM 13-22 (13-49), the FCC requested comments on a potential sharing of the DSRC band, to understand if a feasible sharing solution that protects DSRC users could be developed. DSRC would remain as a primary user of the band The new band would be designated U-NII-4

• 802.11ac could be modified to operate in this new UNII-4 band if approved by the FCC

• FCC did not specify the framework or etiquette by which band sharing would occur

January 2015

Jim Lansford, CSR TechnologySlide 3

doc.: IEEE 802.11-15/0174r1

Submission

Motion to approve minutes

• Moved that the Regulatory Standing Committee approve the minutes of the DSRC Coexistence Tiger Team from the conference calls on:

• December 12, 2014 (document 15/176r0)

• December 19, 2014 (document 15/177r0)

• January 9, 2015 (document 15/178r0)

• Moved by: Jim Lansford

• Second: John Notor

• Approved? By unanimous consent

January 2015

Jim Lansford, CSR TechnologySlide 4

doc.: IEEE 802.11-15/0174r1

Submission

Activities since November F2F

• Published draft of final report on Dec 12– https://mentor.ieee.org/802.11/dcn/14/11-14-1596-00-0reg-final-report-of-dsrc-coexistence-tiger-team.docx

• Comment collection spreadsheet published– https://mentor.ieee.org/802.11/dcn/14/11-14-1598-00-0reg-comment-collection-spreadsheet-for-dsrc-coex-t

t-final-report.xls

• Straw poll questions discussed and finalized during calls on Dec 19 and Jan 9

– https://mentor.ieee.org/802.11/dcn/14/11-14-1608-01-0reg-agenda-for-dsrc-coexistence-tiger-team-19-dec-2014.ppt

• European submission by Spaandermann, et al to be integrated into document

• Comments received– https://mentor.ieee.org/802.11/dcn/15/11-15-0175-00-0reg-dsrc-coex-tt-final-report-c

onsolidated-comments.xls

January 2015

Jim Lansford, CSR TechnologySlide 5

doc.: IEEE 802.11-15/0174r1

Submission

Straw poll question #1

Objective of the Tiger Team: “Create a document that describes and quantifies possible coexistence mechanisms between DSRC and extensions of the 802.11 base standard in the proposed UNII-4 band, if the FCC allows such band sharing in a future R&O.”

Do you believe that sharing of the 5.9GHz band by unlicensed (Part 15) devices should be allowed?

•Yes

•No

•Needs more study

•No opinion

January 2015

Jim Lansford, CSR TechnologySlide 6

doc.: IEEE 802.11-15/0174r1

Submission

Straw poll question #2

Regarding the proposal in document 13/994r0 by Peter Ecclesine of Cisco Systemshttps://mentor.ieee.org/802.11/dcn/13/11-13-0994-00-0reg-proposal-for-u-nii-4-devices.docx

{additional links?}

Do you believe this proposed band sharing technique has merit and, after developing a more complete definition and field testing, should be considered a basis for a band sharing solution?

•Yes

•No

•Not enough information/needs more study

•No opinion

January 2015

Jim Lansford, CSR TechnologySlide 7

doc.: IEEE 802.11-15/0174r1

Submission

Straw poll question #3

Regarding the proposal in document 13/1449r2 by Tevfik Yucek of Qualcomm (and others)https://mentor.ieee.org/802.11/dcn/13/11-13-1449-02-0reg-proposal-for-dsrc-band-coexistence.pptx

{additional links?}

Do you believe this proposed band sharing technique has merit and, after developing a more complete definition and field testing, should be considered a basis for a band sharing solution? •Yes•No•Not enough information/needs more study•No opinion

January 2015

Jim Lansford, CSR TechnologySlide 8

doc.: IEEE 802.11-15/0174r1

Submission

Straw poll question #4

Which proposal do you support for further specification development and field testing?

•The 13/994r0 proposal by Ecclesine [1]

•The 13/1449r2 proposal by Yucek [1]

•I support a combination of both proposals with additional details added

•I believe further study of both proposals independently is needed

•Neither – I do not support any band sharing

•While I support band sharing, I do not believe either approach can form the basis for an acceptable band sharing solution – we need something different

January 2015

Jim Lansford, CSR TechnologySlide 9

Note 1: Both proposals will need additional development before field testing

doc.: IEEE 802.11-15/0174r1

Submission

Straw poll question #5

If it would enhance band sharing, would you support a proposal to move the V2V Safety Channel (currently in Channel 172) to one of the upper channels (180, 182, or 184)? (Note: this could require a rule change)

•Yes

•No

•Not enough information

•I don’t support band sharing

•No opinion

January 2015

Jim Lansford, CSR TechnologySlide 10

doc.: IEEE 802.11-15/0174r1

Submission

Straw poll question #6

• Would you support a proposal to use one of the upper channels (180/182/184) for BSM traffic instead of Channel 172? (No rule change. Part 95 still applies to Channel 172. Channel 172 would be shared with Part 15 devices)

• Yes

• No

• Not enough information

• I don’t support band sharing

• No opinion

January 2015

Jim Lansford, CSR TechnologySlide 11

doc.: IEEE 802.11-15/0174r1

Submission

Straw poll question #7

January 2015

Jim Lansford, CSR TechnologySlide 12

DSRC Band

161 165 169 173 177

177173DSRC Channels

Wi-Fi Channels

160MHz

80MHz80MHz

• If band sharing is allowed, would you prefer that the upper edge of the U-NII4 band be at 5.925 GHz (all 75MHz) or 5.895 GHz (only the lower 45MHz)?

• Only lower 45MHz

• All 75MHz

• No opinion

• I do not support band sharing Lower 45MHz

All 75MHz

doc.: IEEE 802.11-15/0174r1

Submission

Straw poll question #8

• If sharing is only allowed in the lower 45MHz portion of the band (5850-5895MHz), should DSRC only use 20MHz channels in that shared portion of the band? (Note: Channels 172 & 178 in Part 95 are defined as 10MHz in bandwidth, so a rule change may be required)

• Yes – only 20MHz DSRC channels in the shared band

• No – DSRC should use 10MHz channels

• No opinion

• I do not support band sharing

January 2015

Jim Lansford, CSR TechnologySlide 13

doc.: IEEE 802.11-15/0174r1

Submission

Straw poll question #9

If a Clear Channel Assessment approach is adopted as outlined in document 13/994r0 by Ecclesine, would unlicensed devices need to vacate the entire 5850-5925 MHz band after detecting a DSRC signal on one channel within the band in order for sharing to be feasible?

•Yes – unlicensed devices would need to vacate the entire shared band (5850-5925 MHz) after detecting a DSRC signal on one channel

•No – unlicensed devices could still operate in other parts of the shared band (5850-5925 MHz) after detecting a DSRC signal on one channel

•No opinion

•I do not support band sharing

January 2015

Jim Lansford, CSR TechnologySlide 14

doc.: IEEE 802.11-15/0174r1

Submission

Future Work

Anticipated Work Going Forward• Work through comment resolution on draft of final report• Finalize distribution list for straw polls• Run straw polls using Survey Monkey

– Comment fields in each question– Poll will be launched ASAP after call on January 30

• Integrate Straw Poll results into Final Report (Section 11)– Comments will be folded into final report– Name and affiliation will be included unless the respondent opts out

• Submit final report to REG SC for approval– Straw poll among DSRC Coex TT to indicate approval to release document

to REG SC– Final REG SC vote and future actions discussion in March at F2F in Berlin

January 2015

Jim Lansford, CSR TechnologySlide 15

doc.: IEEE 802.11-15/0174r1

Submission

References• FCC NPRM 13-22 (changes to 5GHz band rules, including proposed UNII-4

band): – http://transition.fcc.gov/Daily_Releases/Daily_Business/2013/db0220/FCC-13-22A1.pdf

• FCC 13-22 Comments• https://mentor.ieee.org/802.11/dcn/13/11-13-0444-01-0reg-fcc-13-49-comment.docx

• FCC 13-22 Reply Comment framework document– https://mentor.ieee.org/802.11/dcn/13/11-13-0661-00-0reg-fcc-13-49-reply-comment-framework.doc

• FCC 13-22 Comments survey– https://mentor.ieee.org/802.11/dcn/13/11-13-0679-00-0reg-fcc-13-49-comment-survey.docx

• FCC 13-22 Reply Comments– https://mentor.ieee.org/802.18/dcn/13/18-13-0087-04-0000-draft-reply-comments-of-ieee-802-re-5-ghz-np

rm-fcc-et-13-49.docx

• Letter to FCC OET from IEEE 802 regarding DSRC Coexistence Tiger Team activities

– https://mentor.ieee.org/802.18/dcn/14/18-14-0007-02-0000-dsrc-coexistence-tt-status-letter-to-oet.docx  

• DSRC Summary– http://secs.oakland.edu/~gpcorser/vanet-kenny-DSRC.pdf

January 2015

Jim Lansford, CSR TechnologySlide 16

doc.: IEEE 802.11-15/0174r1

Submission

References (2/2)• IEEE 802.11 submissions on DSRC (since 802.11p was ratified)

– https://mentor.ieee.org/802.11/dcn/13/11-13-0552-00-0wng-802-11p-dsrc-and-802-11ac-coexistence.ppt

– https://mentor.ieee.org/802.11/dcn/13/11-13-0541-01-0wng-dsrc-applications-tutorial.pptx – https://mentor.ieee.org/802.11/dcn/13/11-13-0543-01-0wng-dsrc-support-information.pptx – https://mentor.ieee.org/802.11/dcn/13/11-13-0994-00-0reg-proposal-for-u-nii-4-devices.docx – https://mentor.ieee.org/802.11/dcn/13/11-13-1276-00-0reg-proposal-for-sharing-in-unii-4-band.pptx– https://mentor.ieee.org/802.11/dcn/13/11-13-1309-00-0reg-harmful-interference-to-dsrc-systems.ppt

x

– https://mentor.ieee.org/802.11/dcn/13/11-13-1360-00-0reg-dsrc-per-versus-rss-profiles.pptx – https://mentor.ieee.org/802.11/dcn/13/11-13-1449-02-0reg-proposal-for-dsrc-band-coexistence.pptx – https://mentor.ieee.org/802.11/dcn/14/11-14-0225-00-0reg-use-cases-for-dsrc-coexistence.ppt – https://mentor.ieee.org/802.11/dcn/14/11-14-0259-00-0reg-v2v-radio-channel-models.ppt – https://mentor.ieee.org/802.11/dcn/14/11-14-0532-00-0reg-cca-issues-for-dsrc-coexistence.ppt – https://mentor.ieee.org/802.11/dcn/14/11-14-0550-00-0reg-world-spectrum-sharing.ppt – https://mentor.ieee.org/802.11/dcn/14/11-14-0728-00-0reg-communication-and-data-movement-in-

connected-vehicles.ppt – https://mentor.ieee.org/802.11/dcn/14/11-14-0819-00-0reg-technical-discussion-on-re-

channelization-proposal-for-dsrc-band-coexistence.pptx – https://mentor.ieee.org/802.11/dcn/14/11-14-1335-01-0reg-dsrc-band-plan-rationale.ppt

January 2015

Jim Lansford, CSR TechnologySlide 17Bold text indicates proposal submissions