1 / 5

Spec Framework Text for PHY Numerology

Spec Framework Text for PHY Numerology. Authors:. Date: 2011-9-21. Based on motions in document 1294r1, the group adopted the following: The draft specification shall include support for 1 MHz, 2 MHz,  4 MHz,  8 MHz, and 16 MHz PHY transmissions

niran
Download Presentation

Spec Framework Text for PHY Numerology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Spec Framework Text for PHY Numerology Authors: Date:2011-9-21 Sameer Vermani, Qualcomm

  2. Based on motions in document 1294r1, the group adopted the following: • The draft specification shall include support for 1 MHz, 2 MHz,  4 MHz,  8 MHz, and 16 MHz PHY transmissions • In this document we propose spec framework text for PHY numerology corresponding to the above transmission bandwidths in 802.11ah Abstract Sameer Vermani, Qualcomm

  3. Propose to have the same tone spacing for all BW modes • Different BWs should be achieved through transmission on different number of subcarriers • Helps in achieving co-existence if we have same symbol duration • Propose to have 64 tones for the 2 MHz mode • Gives a long enough CP for outdoor deployments • Minimizes new design work as 11ac already has designs for up-to 512 pt FFT • Modes >= 2 MHz become 10x down-clocking (expansion) in terms of symbol times and other related parameters in 11ac • 1 MHz mode is the only mode which will need a new design Proposal on PHY numerology Sameer Vermani, Qualcomm

  4. The 2 MHz PHY transmission shall be an OFDM based waveform consisting of a total of 64 tones (including tones allocated as pilot, guard and DC). Note: This implies a tone spacing of 31.25 kHz. The tone spacing for all other bandwidth modes shall be same as the tone spacing in the 2 MHz mode. Spec Framework Text on PHY Numerology Sameer Vermani, Qualcomm

  5. Add the following text to the .11ah Spec Framework document under the section header: ‘PHY Numerology’: • The 2 MHz PHY transmission shall be an OFDM based waveform consisting of a total of 64 tones (including tones allocated as pilot, guard and DC). Note: This implies a tone spacing of 31.25 kHz. • The tone spacing for all other bandwidth modes shall be same as the tone spacing in the 2 MHz mode. • Yes • No • Abstain Motion Sameer Vermani, Qualcomm

More Related