Wireless device and radio frequency channel calibration method
US9992776B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2017 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Oct 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless device and a radio frequency channel calibration method, where the wireless device includes a first radio frequency circuit and a second radio frequency circuit that operate on a same frequency band, and a processor. The first radio frequency circuit is configured to send a calibration signal using a calibration antenna. The second radio frequency circuit is configured to receive the calibration signal using each of at least two to-be-calibrated antennas. The second radio frequency circuit corresponds to at least two radio frequency channels, the at least two radio frequency channels respectively correspond to the at least two to-be-calibrated antennas. The processor is configured to determine a device phase difference of each of the at least two radio frequency channels, and calibrate a corresponding radio frequency channel using the device phase difference of each of the at least two radio frequency channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.