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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 [email protected]
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