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doc.: IEEE 802.11-10/0204r2
Submission
March 2010
David Halasz, AclaraSlide 1
Comments on Sub 1 GHz license-exempt operation
Date: 2010-04-05
Name Affiliations Address Phone email David Halasz Aclara 30400 Solon Rd
Solon, OH 44139 440-528-7477 [email protected]
Authors:
doc.: IEEE 802.11-10/0204r2
Submission
Abstract
• This presentation summarizes some of the comments received on the Sub 1 GHz license exempt PAR & 5c in submission 10/0001r5.
March 2010
David Halasz, AclaraSlide 2
doc.: IEEE 802.11-10/0204r2
Submission
Comments on Sub 1 GHz license-exempt
• The bands are not uniform across the world. Roaming users can cause issues.
• Confusion between TVWS and Sub 1 GHz license-exempt
• Issues with Annex I & J
• Difference between IEEE 802.15.4g
• Coexistance with IEEE 802.15.4g
March 2010
David Halasz, AclaraSlide 3
doc.: IEEE 802.11-10/0204r2
Submission
The bands are not uniform across the world. Roaming users can cause issues.
• Issue : A U.S. user roams to Europe. The user turns on the Sub 1 GHz wireless card and causes interference.
• Suggestion : Add text in section 5.2 of PAR to indicate above discussions are within scope.
• Note : World mode, IEEE 802.11d, can address this for mobile nodes.
March 2010
David Halasz, AclaraSlide 4
5.2 Scope of Proposed Standard: This amendment defines standard operation and channelization of license-exempt frequency bands below 1 GHz for IEEE 802.11 networks while meeting legal requirements across regulatory domains.
doc.: IEEE 802.11-10/0204r2
Submission
Confusion between TVWS and Sub 1 GHz license-exempt
• Issue A : Both PARs are concerned with Sub 1 GHz operation. However the rules are different.
• Suggestion : Add text to section 7.1 and/or 8.1 of PAR mentioning the rules differences.
• Note : TVWS PAR is 09/934.– https://mentor.ieee.org/802.11/dcn/09/11-09-0934-08-tvws-draft-p
ar-and-5c.doc
March 2010
David Halasz, AclaraSlide 5
doc.: IEEE 802.11-10/0204r2
Submission
Confusion between TVWS and Sub 1 GHz license-exempt issue A cont.
March 2010
David Halasz, AclaraSlide 6
7.1 Are there other standards or projects with a similar scope? YesExplanation: IEEE P802.15 addresses one product segment of the new regulatory rules. Sponsor Organization: IEEEProject/Standard Number: P802.15.4gProject/Standard Date: 0000-00-00Project/Standard Title: IEEE Standard for Information Technology - Telecommunications and Information Exchange Between Systems - Local and Metropolitan Area Networks - Specific Requirements - Part 15.4: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low Rate Wireless Personal Area Networks (WPANs) - Amendment: Physical Layer(PHY) Specifications for Low Data Rate Wireless Smart Metering Utility NetworksExplanation: IEEE P802.11af addresses Television White Spaces, which are below 1 GHz. Sponsor Organization: IEEEProject/Standard Number: P802.11afProject/Standard Date: 0000-00-00Project/Standard Title: Standard for Information Technology - Telecommunications and Information Exchange Between Systems - Local and Metropolitan Area Networks - Specific Requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications; Amendment: TV White Spaces Operation
doc.: IEEE 802.11-10/0204r2
Submission
Confusion between TVWS and Sub 1 GHz license-exempt issue A cont.
March 2010
David Halasz, AclaraSlide 7
8.1 Additional Explanatory Notes: (Item Number and Explanation)
7.1 Are there other standards or projects with a similar scope?
P802.11af limits itself to the TV White Space. This PAR is for other license-exempt bands below 1 GHz.
doc.: IEEE 802.11-10/0204r2
Submission
Confusion between TVWS and Sub 1 GHz license-exempt
• Issue B : Both PARs are concerned with Sub 1 GHz operation. Want to avoid completely different solutions.
• Suggestion : Work towards common solutions.
• Note : IEEE 802.11af has initial text.
March 2010
David Halasz, AclaraSlide 8
doc.: IEEE 802.11-10/0204r2
Submission
Issues with Annex I & J
• Issue A : Annex I/J doesn't cover all regulatory domains
• Issue B : IEEE 802.11 does not define regulatory domains. However implementations need this information.
• Issue C : For changes above and management purposes, regulatory classes may need an update.
• Suggestion : Handle above issues in TGmb
• Note : Submission in 10/210r6 approved in TGmb
March 2010
David Halasz, AclaraSlide 9
doc.: IEEE 802.11-10/0204r2
Submission
Difference between IEEE 802.15.4g
• Issue : Confusion on how this work is different than IEEE 802.15.4g
• Suggestion : Add text to 8.1 of PAR indicating IEEE 802.15.4g PAR limits data rate to less than 1 Mbit/s. The desire is for an IEEE 802.11 PHY that scales to higher data rates.
March 2010
David Halasz, AclaraSlide 10
8.1 Additional Explanatory Notes: (Item Number and Explanation)
7.1 Are there other standards or projects with a similar scope?
P802.15.4g limits itself to below 1 Mbit/s. This PAR is for IEEE 802.11 MAC and PHY that scale to higher data rates.
doc.: IEEE 802.11-10/0204r2
Submission
Coexistance with IEEE 802.15.4g
• Issue : Want to avoid coexistance issues
• Suggestion : Coordinate with IEEE 802.15.4g on coexistance.
• Note A : In section 17.5.4.1 of 10/0001 has the following text,– “The working group will create a CA document as part of the WG
balloting process”
• Note B : Currently, IEEE 802.15.4g has more than one PHY. So IEEE 802.15.4g should already be expecting coexistance work.
March 2010
David Halasz, AclaraSlide 11
doc.: IEEE 802.11-10/0204r2
Submission
References
March 2010
David Halasz, AclaraSlide 12
