Data transmission method and apparatus
US11979343B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2021 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Oct 21, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This application discloses a method including a transmit end that generates and sends a physical layer protocol data unit (PPDU), and a receive end that receives the PPDU and parses the PPDU. An enhanced directional multi-gigabit (EDMG) modulation field in the PPDU includes a channel estimation field (CEF), the CEF includes a CEF sequence, and a length of the CEF sequence is m, where m is determined based on a quantity of bonding channels and a quantity of subcarriers included on a channel. When a discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM) technology is introduced into a 60 GHz WLAN standard, an applied CEF sequence included in a CEF can be determined, and DFT-S-OFDM transmission is further performed by using the CEF sequence. In this way, a PAPR of a WLAN system can be reduced while frequency division multiplexing for a plurality of users is supported.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.