Pilot tones in distributed resource unit (DRU) transmission
US12184568B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2023 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Nov 17, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2634
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to pilot tone designs that support distributed transmission. A transmitting device may modulate a physical layer convergence protocol (PLCP) protocol data unit (PPDU) on a number (M) of tones representing a logical RU associated with the legacy tone plan and may further map the M tones to M noncontiguous subcarrier indices associated with a wireless channel. The transmitting device may transmit the PPDU, over the wireless channel, with a number (N) of pilot tones each having a respective location relative to the M tones as mapped to the M noncontiguous subcarrier indices. In some implementations, the relative locations of the N pilot tones may be different than relative locations of a number (K) of pilot tones associated with the logical RU.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.