Calibrating a wireless communication device
US8175538B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2008 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Sep 28, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/12
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a multiple-input, multiple-output system, the frequency of transmitted signals can be partitioned into some number of frequency bins. During an exchange of sounding signals, a first station can monitor the quality of the signals to select a second station that is qualified to participate in a calibration procedure. The first station can generate a first set of channel characteristics for a particular frequency bin based on the sounding signal it receives from the second station. The first station also receives channel state information from the second station which can be used to generate a second set of channel characteristics for the particular frequency bin. Then, the selected subsets of the first and second sets can be manipulated in order to determine a set of correction values for that frequency bin as well as for other frequency bins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.