Radio interference detection and dynamic channel bandwidth management
US11283475B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Sep 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless access point device includes a radio to establish a communication link on a first primary channel using a wireless local area network (WLAN) protocol. The communication link has an operating channel bandwidth and a communication link bandwidth that is adjustable to be identical to or lower than the operating channel bandwidth. The operating channel bandwidth includes the first primary channel and a plurality of secondary channels. The WAP device is to determine that received data, which contains in-phase and quadrature (I/Q) values, does not include a valid WLAN frame; determine that a first secondary channel of the plurality of secondary channels has an interference signal signature via application of frequency domain analysis on the I/Q sample values; and modify the communication link bandwidth from a first frequency range to a second width frequency range, which does not include the first secondary channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.