Power detection of individual carriers of a multiple-carrier wideband signal
US8995560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2011 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Jun 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/346
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and method measures power of channels generated by a multiple-carrier transmitter that upconverts a plurality of baseband signals to a corresponding plurality of assigned carrier frequencies to generate an RF wideband signal. A measurement module's input interface receives a selected baseband signal and a corresponding assigned carrier frequency as well as the RF wideband signal. An undersampling component undersamples the RF wideband signal for a sampling interval to generate a plurality of measured aliased samples. A determination component determines a plurality of determined aliased samples based on the selected baseband signal upconverted to the corresponding assigned carrier frequency. A correlator correlates the plurality of measured aliased samples with the plurality of determined aliased samples to produce a correlation result. A transmit power component determines a transmitted power of the correlation result for a selected channel of the RF wideband signal corresponding to the selected baseband signal as upconverted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.