Clear channel assessment in wireless communications
US8565255B1 · kind B1 · utility
1Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2011 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Sep 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transceiver including: an antenna configured to a receive a first signal transmitted on a radio frequency channel; and a peak-to-sidelobe ratio determination unit configured to generate a second signal based on a ratio, in which the ratio is based on a peak value and a sidelobe value, and the peak value and the sidelobe value are determined based on a non-correlated version of the first signal. The transceiver further includes a carrier sense unit configured to, based on the second signal, generate a third signal indicating (i) whether the radio frequency channel is busy or (ii) whether the first signal is valid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.