IEEE 802.11bd Mandatory Features for Car-to-Car Communication
Discover the input from the Car-2-Car Communications Consortium on mandatory features for IEEE 802.11bd, including discussions on interoperability with Wi-Fi and 256-QAM modulation schemes. Learn about the consortium's background and members.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
July 2020 doc.: IEEE 802.11-20/1012r1 On 802.11bd Mandatory Features: Input from the Car-2-Car Communications Consortium Date: 2020-06-07 Authors: Name Affiliations Address 21, Route de Luxembourg 6633 Wasserbillig Luxembourg 465 Bernardo Avenue Mountain View, CA 94043 Phone email Friedbert Berens FBConsulting Sarl +4916097971846 friedbert.berens@me.com John Kenney Toyota InfoTech Labs +1 650-694-4160 jkenney@us.toyota-itc.com Ioannis Sarris u-blox Athens, Greece +30 6976080735 ioannis.sarris@u-blox.com Submission Slide 1
July 2020 doc.: IEEE 802.11-20/1012r1 Abstract In this contribution, the authors present some input from the Car-2-Car Communications Consortium on the use of 20 MHz as a way of achieving interoperability with WiFi (802.11a/n/ac/ax/be) as well as on the definition of 256-QAM as a mandatory modulation scheme. The proposals and straw polls in this contribution come from the authors as individuals but they are also aligned with recommendations which the Car-2- Car consortium respectfully ask for consideration by the TGbd group. Submission Slide 2
July 2020 doc.: IEEE 802.11-20/1012r1 Background: The European CAR 2 CAR Communication Consortium is an industrial-driven, non-commercial association founded by European vehicle manufacturers https://www.car-2-car.org/ Submission Slide 3
July 2020 doc.: IEEE 802.11-20/1012r1 Background, Car-2-Car members: Partners 32 associate members 29 development members GM Honda Hyundai KTM MAN Groupe Renault Toyota Volkswagen Volvo Yamaha Aptiv Autotalks Bosch Cohda Wireless Continental Denso Infineon NXP LG u-blox Siemens Valeo DLR Eurecom Fraunhofer IMST KTH TNO Submission Slide 4
July 2020 doc.: IEEE 802.11-20/1012r1 Discussion Interoperability with Wi-Fi The current NPRM proposal by the FCC allocates the lower 45 MHz of the 5.9 GHz band for Wi-Fi operation (802.11a/n/ac/ax/be) Operation of 802.11bd (either 10 MHz or 20 MHz) will not be an attractive solution for the 45 MHz as non-interoperable with Wi-Fi A single 10 MHz channel for 802.11p/bd in the upper 30 MHz of the 5.9GHz band will not fulfill the needs of ITS It is unlikely that automotive OEMs will deploy 802.11p/bd based systems if only 10 MHz of bandwidth is accessible to ITS Could 802.11a/ac/ax be used or do we need a new 802.11bd 20 MHz mode? Submission Slide 5
July 2020 doc.: IEEE 802.11-20/1012r1 Discussion 256 QAM modulation This mode can be important for enabling high throughput, matching the specification of competitive solutions The scope of 256-QAM however is limited to a few applications and not for a broad deployment (similarly to 2x2 MIMO) Implementation and verification of this feature adds cost and complexity 802.11p only defines MCS 0, 2 and 4 as mandatory, yet there were no limitations due to this (vast majority of applications exclusively use QPSK) NR-V2X (Rel. 16) also defines 256-QAM as an optional mode Submission Slide 6
July 2020 doc.: IEEE 802.11-20/1012r1 Proposal Based on this discussion, the authors are making the following proposals. These were discussed during the C2C Week #10 meeting and were approved by the C2C Steering Committee 1. The definition of an additional 20 MHz mode which will be interoperable with Wi-Fi (802.11a/n/ac/ax/be) 2. The classification of 256-QAM modulation as an optional feature for 802.11bd Submission Slide 7
July 2020 doc.: IEEE 802.11-20/1012r1 Straw poll 1 Do you support the definition of an additional 20 MHz mode which will be interoperable with Wi-Fi (802.11a/n/ac/ax/be)? Y / N / A Submission Slide 8
July 2020 doc.: IEEE 802.11-20/1012r1 Straw poll 2 Do you support the classification of 256-QAM modulation as an optional feature for 802.11bd? Y / N / A Submission Slide 9
