Patent · US Active

Interference cancellation apparatus and method

US9973224B2 · kind B2 · utility

14Cited by
10References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 22, 2016
Grant dateMay 15, 2018
Priority date
Expiry dateDec 22, 2036

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04W84/12
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

Embodiments of the present invention provide an interference cancellation apparatus and method. The method includes: receiving a radio frequency receive signal by using a main receive antenna; canceling a first-type self-interference component in the radio frequency receive signal according to a radio frequency reference signal, to generate a first processed signal; acquiring the reconstructed self-interference signal according to a self-interference channel parameter and the radio frequency reference signal; canceling a second-type self-interference component in the first processed signal according to the reconstructed self-interference signal to generate a second processed signal; performing down-conversion processing on the second processed signal to generate a third processed signal; performing analog to digital conversion on the third processed signal to generate a digital signal; and acquiring a digital baseband reference signal, and performing self-interference channel estimation according to the digital baseband reference signal and the digital signal to acquire the self-interference channel parameter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.