December 2011 doc.: IEEE 802.11-11/1613r0
IEEE P802.11
Wireless LANs
Date: 2011-11-29
Author(s):
Name / Affiliation / Address / Phone / Email
Rich Kennedy / Research In Motion Corporation / 7305 Napiet Trail
Austin, TX 78729 / +1-972-207-3554 /
Peter Ecclesine / Cisco Systems / 170 W. Tasman Dr., San Jose, CA 95134-1706 / +1-408-527-0815 /
Zhou Lan / NICT / 3-4, Hikarino-oka, Yokosuka, 239-0847, Japan / +81-46-847-5097 /
December 6th , 2011 21:00-22:00 ET 9 attendees,
Agenda refer to dechttps://mentor.ieee.org/802.11/dcn/11/11-11-1610-00-00af-november-6th-teleconference-plan-and-agenda.ppt .
1. Richard Kennedy (RIM) is the chair of the group. Peter Ecclesine (Cisco) is the vice-chair of the group. The Vice-Chair called meeting to order: 21:05 pm ET.
2. Agenda of the teleconference in 11-11-1610-00-00af-december-6th-teleconference-plan-and-agenda.ppt is reviewed and approved by unanimous consent.
3. Introduction
3.1. Vice-chair welcomed participants to the Task Group teleconference.
3.2. Vice-chair introduced the officers of the group.
3.3. Chair: Rich Kennedy (Research In Motion)
3.4. Vice-chair, Technical Editor and Webex Facilitator: Peter Ecclesine (Cisco)
3.5. Task Group Secretary: Zhou Lan (NICT).
3.6. Vice-chair reminded participants to record their attendance by sending mails to , and .
4. Administrative items
4.1. Vice-chair presented the links for the documents related with the administrative items.
4.2. Vice-chair reviewed the patent policy and meeting guideline slides. Is there anyone who is not familiar with the IEEE Patent Policy? None.
4.3. Vice-chair asked: Are there any patent claim(s)/patent application claim(s) and/or the holder of patent claim(s)/patent application claim(s) that the participant believes may be essential for the use of that standard? None.
4.4. Vice-chair reviewed other guidelines for IEEE WG meetings.
4.5. Vice-chair reviewed the TG chair function.
5. Peter Ecclesine reviewed the issues we must consider.
6. One issue is regarding to telling the database the spectrum mask. Then, the DB will decide based on what protection is required for the primary users near the TVBD. There are different primary users such as Digital TV, wireless microphones and cellular radio systems. The current draft doesn't allow us to specify sufficient information for primary user protection.
7. Chen SUN (NICT) asked if the spectrum mask description can cover enough bandwidth (such as the +- 72Mhz from the center frequency as in OFCOM approach), would that be sufficient.
8. Peter replied that the spectrum re-growth is not captured using the current spectrum mask description because the mask gives only a flat ceiling level above 150% channel bandwidth.
9. Padam Kafle (Nokia) commented that the spectrum re-growth issue depends on how far away from the center frequency we need to consider for the primary user protection.
10. Peter replied that it can be 13 channels away. So the database should not assume straight line after f5 (150%) in the spectrum mask and should consider spectrum re-growth over a hundred Mhz away. Also, the mask shall be modified for database calculation for different systems (such as cellular, microphone and DTV)
11. Peter mentioned that Channel planning is the second big problem. We don't have Japan, Europe tables yet. We can say for example that we only have 2 bandwidths (4MHz and 8 MHz) and make different channel numbers for different channel bandwidths to avoid radio astronomy channels. The result is that no RLAN channel that spans across 610 MHz which is radio astronomy frequency. Then, we can have a global channel plan. Now we can specify in Clause 20 channel center frequency in TV band. In January we need to make decision on Clause 20. Currently, the channel center frequency equation will be reconsidered together with the channel planning.
12.
13. Padam asked what the OFCOM interleaved channels is. Peter explained the meaning of the interleaved channels in OFCOM document and mentioned that we should have a global table and Europe table.
14. Padam mentioned that some EU countries have 7MHz channels.
15. Peter replied that it is in VHF band. So far we don't hear any use of portable in VHF.
16. Peter commented that the Channel number multiplier can be different for different channel bandwidths. There would be different channel plans for VHF and UHF.
17. Santosh Abraham (Qualcomm) asked if it is possible to avoid channel 38 (the OFCOM example) simply instead of changing total channelization, which leads to changes of white space map.
18. Peter replied it is one way to do. But it is only true if the RLAN channel is the same as the TV channel. He suggested to make the channel planning to the right and to the left starting from 610 MHz. Channel planning is among the biggest issues the no-voters encountered in the first ballot.
19. Padam mentioned that he has drawn some pictures for channel planning that can be used for discussion.
20. Yohannes Demessie (NICT) asked if the channel numbering will be determined in January. Peter replied yes.
21. Peter explained that 11ac has a dual scheme, one channel planning for 20 and 40 MHz channel bandwidths which is the same as what has been done in 11n, another channel planning for 80 and 160. A question is whether TGaf should use the 80/160 scheme for channel planning.
22. Yohannes commented that Channel number issues go together with other issues like selection of channels.
23. Peter agreed that many things are not decided. Also in the Annex E there is no behavior for different bands. We need to have global operating classes at least to address UK and US.
24. Padam proposed that we can use the 11ac approach.
25. Peter mentioned that comment sheet 11-11/277r24 and draft are uploaded. There have been no submissions for comment resolution since last week’s teleconference.
26. Peter Ecclesine reviewed the Editorial status of the draft.
26.1. Draft 1.05 was posted October 30, 2011
27. Vice-chair asked if there is any other business, and hearing none, asked if there is any objection to adjourning. Hearing no objection, the conference call was adjourned at 22:00ET.
Attendees:
Name (affiliation) [email]
Peter Ecclesine, Vice-chair (Cisco Systems) [
Chen Sun (NICT) [
Santosh Abraham (Qualcomm] [
Yohannes Alemseged (NICT) [
Padam Kafle (Nokia) [
Eunsun Kim (LGE) [
Erik Lindskog (CSR)[
Chin Sean Sum (NICT) [
Ha Nguyen Tran (NICT) [
Minutes page 1 Peter Ecclesine (Cisco)