Long training field (LTF) in distributed transmission
US12368548B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2024 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Jul 3, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/286
- 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 LTF designs that support distributed transmissions. In some aspects, a transmitting device may obtain a sequence of values representing an LTF of a PPDU and may map the sequence of values to a number (N) of noncontiguous subcarrier indices of a plurality of subcarrier indices spanning a wireless channel according to a distributed tone plan. In some implementations, the transmitting device may modulate the sequence of values on N tones, representing a logical RU, and map the N tones to the N noncontiguous subcarrier indices, respectively. In some other implementations, the sequence of values may be obtained based on relative locations of the N noncontiguous subcarrier indices in the wireless channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.