Method and apparatus for signal processing
US10193684B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2016 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Mar 9, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/38
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present embodiments relate to the field of communications, and discloses a signal processing method and apparatus, which can implement self-interference cancellation when in-phase quadrature (IQ) imbalance exists in a communications system. An embodiment is acquiring, a digital baseband reference signal, a self-interference reference signal, and a frequency-domain baseband signal. The method also includes obtaining, according to the digital baseband reference signal, a basic reference signal and an image reference signal that are image to each other and estimating an estimated value of a first comprehensive response and an estimated value of a second comprehensive response according to the basic reference signal, the image reference signal, and the self-interference reference signal. Additionally, the method includes calculating a self-interference signal according to the estimated value of the first comprehensive response, the estimated value of the second comprehensive response, the basic reference signal, and the image reference signal, so as to perform self-interference cancellation on the frequency-domain baseband signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.