Transmission of punctured null data packets and partial bandwidth feedback
US11627027B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2021 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Jun 23, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2602
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A technique for wireless communication of a punctured null data packet with a long training field sequence is disclosed. The long training field (LTF) sequence is generated for the null data packet (NDP) for transmission over a channel having a bandwidth that is an integer multiple of 80 MHz. The LTF sequence is modulated onto a plurality of tones of the channel excluding tones within a punctured subchannel of a plurality of subchannels of the channel. The modulation may be based on a size and location of the punctured subchannel and a symbol duration associated with transmitting the LTF sequence. The NDP is transmitted including the LTF sequence to a second wireless communication device via the channel. A partial bandwidth feedback may be received in response to the LTF in the punctured NDP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.