doc.: IEEE /0295r0 Submission March 15, 2011 Fei Tong, CSRSlide 1 Reference waveform generator for 11ac Notice: This document has been prepared to assist IEEE It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE Working Group. If you have questions, contact the IEEE Patent Committee Administrator at. Date: Authors:

doc.: IEEE /0295r0 Submission March 15, 2011 Fei Tong, CSRSlide 2 Reference transmitter waveform generator for 11ac CSR

doc.: IEEE /0295r0 Submission March 15, 2011 Fei Tong, CSRSlide 3 Purpose Improve standard comprehensibility by providing reference model along side text specification. The reference model will facilitates an unambiguous interpretation of the standard and interoperability between devices from different vendors. To maintain continuity of the 11n specification format (providing a reference model as an annex) –Annex T.1 in IEEE Std n-2009

doc.: IEEE /0295r0 Submission March 15, 2011 Fei Tong, CSRSlide 4 Scope Reference model generates baseband waveforms for VHT and other backward compatible modes (including HT and Legacy) specified in ac mandatory and optional. Informative (not normative) part of the spec. No MAC elements.

doc.: IEEE /0295r0 Submission March 15, 2011 Fei Tong, CSRSlide 5 Proposal for the reference model MATLAB Command-line interface and test-vector –Commonly used language among engineers working in this field –Compatible with the existing 11n reference model –Extend support for 11ac specific features –For existing users, easy to migrate from existing 11n model Stop supporting GUI –It is not essential to facilitate the purpose of specification conformance

doc.: IEEE /0295r0 Submission March 15, 2011 Fei Tong, CSRSlide 6 Status of the model Implemented according to IEEE P802.11ac/D0.1 Features Supported –Baseband waveform supporting multiple transmit antennas –20, 40, 80, 160, bandwidth options –All backward compatible modes –Mandatory and optional configuration Example : s_bbac = tx_11ac('VHT', ‘VHT160M’, ‘N_ss:1’,‘MCS:1’, ‘LDPC_CODING:0’);

doc.: IEEE /0295r0 Submission March 15, 2011 Fei Tong, CSRSlide 7 Proposed course of action Get feedback from members at this meeting Get support through strawpolls at this meeting Get consensus from the task group on the requirements of the reference model as well as the working process Agree on timeline for comments and feedback of the reference model to make its readiness along with specification.

doc.: IEEE /0295r0 Submission March 15, 2011 Fei Tong, CSRSlide 8 Straw poll 1 Are you in principle in favor of providing a reference transmitter model added as an informative annex to the 11ac standard Yes No Abstain

doc.: IEEE /0295r0 Submission March 15, 2011 Fei Tong, CSR Slide 9 Straw poll 2 Do you agree with the framework of the model we have presented and using it as a basis for the 11ac reference transmitter model Yes No Abstain Slide 9