Channel width, spatial streams, and short packet signaling

US11128505B2 · kind B2 · utility

Assignee

• Intel Corporation and Intel IP Corporation · US

Inventors

• Xiaogang Chen · Beijing, CN
• Thomas J. Kenney · Portland, US
• Shahrnaz Azizi · Cupertino, US
• Robert J. Stacey · Portland, US
• Laurent Cariou · Portland, US
• Qinghua Li · Sunnyvale, US
• Feng Jiang · Santa Clara, US

Key dates

• Filing date: Feb 6, 2020
• Grant date: Sep 21, 2021
• Expiry date: Feb 6, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W84/12
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Methods, apparatuses, and computer readable media include an apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to decode a legacy preamble of a physical layer (PHY) protocol data unit (PPDU), determine whether the legacy preamble comprises an indication that the PPDU is an extremely-high throughput (EHT) PPDU, and in response to the determination indicating the PPDU is the EHT PPDU, decode the EHT PPDU. Some embodiments determine a spatial stream resource allocation based on a row of a spatial configuration table, a row of a frequency resource unit table, a number of stations, and location of the station relative to the number of stations in user fields of an EHT-signal (SIG) field. To accommodate 16 spatial streams, some embodiments extend the length of the packet extension field, extend signaling of a number of spatial streams, and/or extend a number of EHT-SIG symbols.