November 2011 doc.: IEEE 802.22-11/139r4
Date: 2011-11-09
Authors:
Name
M. Azizur
Rahman
Affiliations Address
NICT 3-4, Hikari-no-oka,
Yokosuka, Japan
Phone
81-46-847-
5060 email aziz.jp@ieee.org
Submission Slide 1 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
This document contains the response to comments on
P802.22b PAR and 5C
Submission Slide 2 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
• https://mentor.ieee.org/802.22/dcn/11/22-11-0118-01-rasg-par-forenhanced-broadband-and-monitoring-amendment.pdf
• https://mentor.ieee.org/802.22/dcn/11/22-11-0119-01-rasg-5c-forenhanced-broadband-and-monitoring-amendment.pdf
Submission Slide 3 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
• 5.1 concern that 802.22 has only 27 voting members with 9 exofficio members (18 802.22 members total).
– Actively involved is different from interested in a topic.
– How was 40 determined.
•
Response: During the study group phase, new participants joined who plan to get actively involved with this project.
• 5.2 – Suggest change “ standard ” with “ amendment ” “ MAC amendments ” with “ MAC enhancements ”
– The document is an amendment and the changes are an enhancement.
•
Response: Revised as suggested.
• PAR Expand first use of Abbreviations.
• Response: Revised as suggested.
Submission Slide 4 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
•
5.5 strike “ for amendment ” in last sentence.
•
Response: Revised as suggested.
•
5.5 change “ can ” with “ are ” in last sentence.
•
Response: Revised as suggested.
•
5.5 change “ None of the features ” to “ None of the use cases ” in last sentence.
•
Response: Revised as suggested.
Submission Slide 5 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
• 7.1 What about 1900.7? Seems similar scope.
•
Response: Yes.
Explanation: The IEEE P1900.7 PAR scope specifies that it will provide means to support P1900.4a for white space management and P1900.6 to obtain and exchange sensing related information (spectrum sensing and geolocation information), whereas, P802.22b PAR is an amendment to the IEEE Std. 802.22-2011 which provides enhanced features to combine broadband wireless access and monitoring services in the TV white space (54 MHz to 862 MHz).
•
5C-1c drop
“ for money
”
•
Response: Revised as suggested
Submission Slide 6 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
• 5C-4a no example of IEEE 802.22 based systems operating in TVWS exist.
•
Response: The existing text has been revised to:
TVWS regulations have not been finalized in any regulatory domain. The United States is ahead and testing of database service is on-going. No overall testing and certification programs have been defined, but experimental licenses have been issued. Since there are no regulatory organizations that allow commercial deployment of wireless systems in TVWS bands, fulfilling the requirements to operate in TVWS bands cannot be demonstrated commercially.
However, there are cognitive radio prototypes that have demonstrated fulfilling the requirements to operate in TVWS bands.
Reference 1: https://mentor.ieee.org/802.22/dcn/11/22-11-0138-00-rasg-singapore-tvws-trialpublication.pdf
Reference 2: http://202.194.20.8/proc/MILCOM2010/papers/p2422-mody.pdf
The physical layer (PHY) and medium access control layer (MAC) technologies used in 802.22, such as orthogonal frequency division multiple access (OFDMA) for PHY and time division multiple access (TDMA) for MAC, have been demonstrated to be feasible by other IEEE 802 standards.
There are entities implementing commercial 802.22 systems, such as:
Carlson Wireless: http://urgentcomm.com/networks_and_systems/news/carlson-white-space-radio-
20110825/
Submission Slide 7 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
• 5C-4b A license being granted does not prove technology or viability of testing. It does not demonstrate feasibility.
– It is a license to experiment.
• Response: The text has been revised to:
The PHY and MAC technologies used in 802.22, such as OFDMA for PHY and TDMA for MAC, have been thoroughly tested and commercially deployed by other IEEE
802 standards. Cognitive radio technology features to fulfil the requirements to operate in TVWS bands are being tested in prototype form for compliance with requirements of various regulatory organizations (e.g., Federal Communications
Commission (FCC), USA, Infocomm Development Authority (IDA), Singapore, etc.).
Reference 1: http://transition.fcc.gov/Daily_Releases/Daily_Business/2011/db0914/DA-
11-1534A1.pdf
Reference 2: https://mentor.ieee.org/802.22/dcn/11/22-11-0138-00-rasg-singapore-tvwstrial-publication.pdf
Submission Slide 8 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
• 5C-4c the assertion does not seem to have any foundation.
•
Response: The text has been revised to:
Confidence in reliability of operation in TVWS is not known at this time since no commercial deployments have been authorized by any regulator.
However, the PHY and MAC technologies used in 802.22 such as OFDMA for PHY and TDMA for MAC, have been deployed by other IEEE 802 standards. Cognitive radio technology features to fulfil the requirements to operate in TVWS bands are being tested for reliability for compliance with requirements of various regulatory organizations (e.g., Federal
Communications Commission (FCC), USA, Infocomm Development
Authority (IDA), Singapore, etc.).
Reference: http://transition.fcc.gov/Daily_Releases/Daily_Business/2011/db0914/DA-
11-1534A1.pdf
Submission Slide 9 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
• 5C-5a What technologies are you implying
• Response: The text has been revised to:
IEEE 802.22 uses OFDMA for PHY and a TDMA based
MAC. The cost factors to implement an OFDMA PHY and TDMA based MAC are well known today. The mandatory cognitive radio features such as access to database can be easily implemented in software. Other cost factors such as geolocation based on global positioning system (GPS) technology are well known.
•
5C-5c The first sentence has nothing to do with installation costs…delete.
• Response: Revised as suggested.
Submission Slide 10 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
• 2.1 Add specific frequencies used by this amendment.
– NesCom required the specific bands be listed for passing PARs last
Sept/Oct.
– You should add them now to avoid the argument.
•
Response: The “TV bands” words exists in the main title. The amendment title is changed to “Amendment: Enhancement for broadband services and monitoring applications”.
• 2.1 Chosing a title should follow the instructions:
– The instructions on making title are "The title of the base standard is uneditable. Please enter the amendment title in the text box. The title should be sufficiently unambiguous, understandable by a
NesCom member not from the society that submitted the PAR. All acronyms shall be spelled out in the title.".
– This title does not seem to meet the requirement.
• Response: See above response.
Submission Slide 11 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
• Scope
• Add "in a network" after "...than 512 devices."
• Change "IEEE std" to "IEEE Std"
•
Response: Revised as suggested.
• Purpose
• You need to fill out the Purpose section of the PAR.
• Response: Agree. The following text has been added for Purpose:
The purpose of this amendment is to enhance the MAC and define an alternate PHY to accommodate broadband extensions and monitoring use cases for IEEE 802.22 devices operating is
VHF/UHF TV broadcast bands between 54 MHz and 862 MHz.
•
Need
• Change "IEEE std" to "IEEE Std”
• Response: Revised as suggested.
Submission Slide 12 M. Azizur Rahman (NICT)

November 2011 doc.: IEEE 802.22-11/139r4
• Stakeholders
• This section of the PAR should list specific areas of industry that are stakeholders of this project.
• Response: The revised stakeholders list is “Chip and equipment manufacturers, government organizations, broadcasters, utility companies, wireless internet and data service providers and operators of IEEE Std. 802.22-2011 devices and other entities such as database service providers to which the standard may need to interface.”
•
Explanatory Notes
• IEEE 802.19 is glad to see the sentence in the explanatory notes:
"This amendment supports mechanisms to enable coexistence with other 802 systems in the same band." We believe that it would be better to include this sentence in the scope.
• Response: Agree. The phrase will be moved to the scope.
Submission Slide 13 M. Azizur Rahman (NICT)

November 2011
• http://ieee802.org/PARs.shtml
• IEEE 802.11-11-1530r2.
doc.: IEEE 802.22-11/139r4
Submission Slide 14 M. Azizur Rahman (NICT)