Data transmission method and apparatus
US12022449B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2021 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Oct 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data transmission method includes that a first device sends a physical layer protocol data unit (PPDU) to a second device. A bandwidth of channels occupied by the PPDU is N×20 megahertz (MHz), the PPDU includes a preamble sequence having a backward compatibility function and a first extremely high throughput long training field (EHT-LTF), the first EHT-LTF is carried in a first subcarrier set, the first subcarrier set includes one or more subcarriers other than a subcarrier that carries the preamble sequence having the backward compatibility function and a direct current subcarrier in the N 20 MHz channels, and N is a positive integer greater than or equal to 2. The second device receives the PPDU sent by the first device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.