Doc.: IEEE 802.11-02/798r3
IEEE P802.11
Wireless LANs
Draft PAR for High Throughput Study Group
Date: March 11, 2003
Revision R4
Authors: Bruce Kraemer Colin Lanzl Sean Coffey
Intersil Corporation Aware, Inc. Texas Instruments
M/S 62A/024
2401 Palm Bay Road NE 40 Middlesex Turnpike 141 Stony Circle Suite 130
Palm Bay, FL 32905 Bedford, MA 01730 Santa Rosa, CA 95401
Phone: 321-729-5683 781-687-0578 707-284-2224
Fax: 321-724-7886 781-276-4001 707-521-3066
e-Mail: bkraemer@ clanzl@ coffey@
Abstract
This is the proposed PAR that the High Throughput Study Committee will submit for the creation of a Task Group.
The signature page is also located at the end of this file.
Rev 1 Initial PAR proposal from HTSG.
Rev 2 PAR Submitted to WG for Letter Ballot 55. Ballot Failed.
Rev 3 PAR Submission with Editing suggested by WG LB55 and ExCom Chair.
Rev 4 PAR Submission with changes to address backward compatibility, coexistence, scope and rate letter ballot comments.
IEEE-SA Standards Board
Project Authorization Request (PAR) Form (2002)
1. Assigned Project Number: P802.11n
2. Sponsor Date of Request: __2003-03-14
3. Type of Document:
Standard for {document stressing the verb "shall"}
Recommended Practice for {document stressing the verb "should"}
Guide for {document in which good practices are suggested, stressing the verb "may"}
4. Title of Document:
Draft Amendment to STANDARD [FOR] Information Technology-Telecommunications and information exchange between systems-Local and Metropolitan networks-Specific requirements-Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Enhancements for Higher Effective Throughput
5. Life Cycle
Full Use (5-year life cycle)
Trial Use (2-year life cycle)
6. Type of Project:
New standard
Revision of existing standard (indicate Number and year existing standard was published in box to the right) (####-YYYY)
Amendment to an existing standard (802.11-1999 (2003 edition))
Corrigendum to an existing standard (indicate Number and year existing standard was published in box to the right) (####-YYYY)
Revised PAR (indicate PAR Number and Approval Date here: P - (YYYY-MM-DD)
Is this project in ballot now?
State reason for revising the PAR in Item #18.
7. Contact information of Working Group Chair who must be an SA member as well as an IEEE and/or Affiliate Member
Name of Working Group (WG): IEEE P802.11, Working Group for Wireless LANs
Name of Working Group Chair:
First Name: Stuart Last Name: Kerry
Telephone: +1 (408) 474-7356
FAX: +1 (408) 474-5343
EMAIL: stuart.kerry@
8. Contact Information of Official Reporter, Project Editor or Document Custodian if different from the Working Group Chair. The Official Report must be an SA member as well as an IEEE and/or Affiliate Member
Name of Official Reporter (if different than Working Group Chair):
First Name: Last Name:
Telephone:
FAX:
EMAIL:
9. Contact information of Sponsoring Society or Standards Coordinating Committee:
Sponsoring Society and Committee:
Computer Society LAN/MAN Standards Committee
Sponsor Committee Chair:
First Name: Paul Last Name: Nikolich
Telephone: 978-749-9999
FAX: 978-749-8888
EMAIL: p.nikolich@
10. Sponsor Balloting Information:
Choose one from the following:
Individual Balloting
Entity Balloting
Mixed Balloting (combination of Individual and Entity Balloting)
Expected Date of Submission for Initial Sponsor Ballot: 2005-11-25
Please review the PAR form three months prior to submitting your draft for ballot to ensure that the title, scope and purpose on the PAR form match the title, scope and purpose on the draft. If they do not match, you will need to submit a revised PAR.
Additional communication and input from other organizations or other IEEE Standards Sponsors should be encouraged through participation in the working group or the balloting pool.
11. Projected Completion Date for Submittal to RevCom: 2006-06-30
If this is a REVISED PAR and the completion date is being extended past the original four-year life of the PAR, please answer the following questions.
If this is not a revised PAR, please go to question #12
Statement of why the extension is required:
When did you begin writing the first draft?
How many people are actively working on the project?
How many times a year does the working group meet in person?
How frequently is a draft version circulated to the working group via electronic means?
How much of the Draft is stable (Format: NN%)? %
How many significant working revisions has the Draft been through?
Briefly describe what the development group has already accomplished, and what remains to be done:
12. Scope of Proposed Project:
The scope of this project is to define an amendment that shall define standardized modifications to both the 802.11 physical layers (PHY) and the 802.11 Medium Access Control Layer (MAC) so that modes of operation can be enabled that are capable of much higher throughputs, with a target minimummaximum throughput of at least 100Mbps, as measured at the MAC data service access point (SAP).
13. Purpose of Proposed Project:
The purpose of the project is to improve the 802.11 wireless local area network (LAN) user experience by providing significantly higher throughput for current applications and to enable new applications and market segments.
14. Intellectual Property:
Sponsor has reviewed the IEEE patent policy with the working group?
X Yes (No
Sponsor is aware of copyrights relevant to this project?
(Yes X No
Sponsor is aware of trademarks relevant to this project?
(Yes X No
Sponsor is aware of possible registration of objects or numbers due to this project?
(Yes X No
15. Are there other standards or projects with a similar scope?
(Yes X No
Explanation:
If Yes, please answer the following:
Sponsor Organization:
Project Number:
Project Date:
Project Title:
16. International Sponsor Organization
Is there potential for this standard (in part or in whole) to be submitted to an international organization for review/adoption?
?? {Yes/No/?? if you don't know at this time}
If Yes, please answer the following questions:
International Committee Name and Number:
International Organization Contact Information:
Contact First Name:
Contact Last Name:
Contact Telephone Number:
Contact FAX Number:
Contact E-mail address:
17. Will this project focus on health, safety or environmental issues? No
If Yes: Explanation?
Note: The PAR Copyright Release and Signature Page must be submitted either by FAX to
208-460-5300 or as an e-mail attachment in .pdf format to the NesCom
Administrator before this PAR will be sent on for NesCom and Standards Board approval.
--------------------------------------------------------------------------------
IEEE-SA Standards Board
18. Additional Explanatory Notes: {Item Number and Explanation}
Item 12.
The scope of the MAC and PHY enhancements assume a baseline of 802.11, 802.11a, 802.11b, 802.11d, 802.11e, 802.11g, 802.11h, 802.11i, and 802.11j. The enhancements shall be to support higher throughput.
Existing 802.11 standards are typically designated by their peak physical data rates. For example, 802.11a has a peak data rate of 54Mbps but throughput is typically found to be less than 25Mbps, measured at the MAC data SAP. This amendment seeks to improve the throughput to at least 100Mbps, measured at the MAC data SAP, which represents an improvement of at least 4 times the current throughput.
Additionally, high throughput devices compliant to this amendment shall respect legacy 802.11, 802.11a, 802.11b and 802.11g spectral mask and channel boundaries to prevent adjacent channel interference in excess of the currently specified levels. Also, high throughput devices compliant to this amendment shall fairly share the available bandwidth in a co-channel usage scenario.
In the process of formulating this PAR, it was found that there are multiple user scenarios. Accordingly, the task group will undertake the following steps:
1. Identify and define usage models, channel models and related MAC and application assumptions. Initial usage models envisioned include hot-spot, enterprise and residential; others may be included.
2. Identify and define evaluation metrics that characterize the important aspects of a particular usage model. The evaluation metrics may include but are not limited to the items listed in Table 1, provided as an illustration of the format.
Table 1: Evaluation Metrics
|Evaluation Parameter |Usage Model 1 |Usage Model 2 |Usage Model 3 |
|Throughput at the MAC data SAP, Mbps# | | | |
|Range, meters | | | |
|Aggregate Network Capacity ’ | | | |
|Power Consumption (peak and average), mW | | | |
|Spectral Flexibility ’’ | | | |
|Cost / Complexity Flexibility | | | |
|Backward Compatibility** | | | |
|Coexistence * | | | |
Notes:
’Definition includes a measure of spectral efficiency (like bits/Hz/m2).
’’That is, agnostic to a particular frequency allocation and perhaps able to implement spectral agility.
*The ability of one system to perform a task in a given shared environment in which other systems have an ability to perform their tasks and may or may not be using the same set of rules.
**Backward compatibility with non-HT 802.11 device is desirable to the extent practicable. It is a comparison metric but is explicitly not mandated. The question of what possible tradeoffs exist between high effective throughput modes and backward compatibility mechanisms requires detailed technical information that is not now available to the HT Study Group.
# It is intended that throughput will be a primary comparison metric, and at least 100Mbps is the mandatory minimum throughput for the highest throughput usage models. It is anticipated that the amended standard will contain a family of related modes, with different throughputs. It is anticipated that some of these modes will have throughputs that are substantially below 100Mbps, but that are still substantially higher, given similar operating conditions, than any modes in the existing 802.11 standard.
3. Develop a technical requirement specification.
4. Define a process for evaluations.
PAR Copyright Release and Signature Page
(Revised 2003)
1. Sponsor Date of Request: 2003-03-14
2. Assigned Project Number: P802.11n
Title:
Draft Amendment to STANDARD [FOR] Information Technology-Telecommunications and information exchange between systems-Local and Metropolitan networks-Specific requirements-Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Enhancements for Higher Effective Throughput
I hereby acknowledge my appointment as Official Reporter (usually the WG Chair) to the 802.11 Wireless LAN Working Group.
In consideration of my appointment and the publication of the Standards Publication identifying me, at my option, as an Official Reporter, I agree to avoid knowingly incorporating in the Standards Publication any copyrighted or proprietary material of another without such other's consent and acknowledge that the Standards Publication shall constitute a "work made for hire" as defined by the Copyright Act, and, that as to any work defined, I agree to and do hereby transfer any right or interest I may have in the copyright to said Standards Publication to IEEE.
I acknowledge having read and understood the IEEE Code of Ethics (). I agree to conduct myself in a manner, which adheres to the IEEE Code of Ethics when engaged in official IEEE business.
Signature of Official Reporter Date
Name of Official Reporter (usually the WG Chair):
|Title in WG: Chairman |IEEE/SA/Affiliate Memb #: |
|Company: Philips |Telephone: |
|Address: |FAX: |
|City/State/Zip: |EMAIL: |
Submitted by: (This MUST be the Sponsor Chair or the Sponsor's Liaison Representative to the IEEE Standards Board) who MUST be an IEEE/Affiliate AND Standards Association (SA) member. If the Sponsor chair is the submitter of the PAR by EMAIL and verifiable by his sender's Email address, this form does not need to be signed by the sponsor. The submitter will be notified in writing when the PAR is received and when the PAR will be considered for approval by the Standards Board. After the Standards Board meeting, the submitter will be notified in writing of the action taken.
As submitter, I shall be responsible for the development and coordination of the standards project, for supervising the standards project from inception to completion, and for ensuring that the standards project operates according to a written set of policies and procedures (P&P) per subclause 5.1.1 of the IEEE-SA Standards Board Operations Manual.
I acknowledge having read and understood the IEEE Code of Ethics (). I agree to conduct myself in a manner, which adheres to the IEEE Code of Ethics when engaged in official IEEE business.
Signature of Submitter____________________________ Date
|Name of Sponsor Committee Chair: |IEEE/SA/Affiliate Memb #: |
|Company: |Telephone: |
|Address: |FAX: |
|City/State/Zip: |EMAIL: |
Do Not Write Below This Line
Signature by IEEE-SA Officer:
Title: _____________________________
Date: ___________
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