Title:
METHOD AND APPARATUS FOR RECONSTRUCTING INTERMODULATION INTERFERENCE SIGNAL
Document Type and Number:
WIPO Patent Application WO/2021/092816
Kind Code:
A1
Abstract:
Provided in some embodiments of the present application is a method for reconstructing an intermodulation interference signal, which is used in a multi-carrier system that uses a specific frequency band. The method comprises: acquiring (201) a digital downlink signal that comprises a useful signal and an intermodulation interference signal; from a model library that comprises an amplitude calculation model corresponding to each frequency point that generates intermodulation interference, selecting (202) an amplitude calculation model corresponding to each frequency point in a frequency band where the useful signal is located; on the basis of a local uplink signal in baseband form and the selected amplitude calculation models, determining (203) the amplitude of each frequency point in an intermodulation interference sequence; and on the basis of the gain of an intermodulation interference channel at each frequency point and the amplitude of each frequency point in the intermodulation interference sequence, reconstructing (204) the intermodulation interference signal.
Inventors:
ZHANG ZHI (CN)
HU RONGYI (CN)
XING JINQIANG (CN)
HU RONGYI (CN)
XING JINQIANG (CN)
Application Number:
PCT/CN2019/118230
Publication Date:
May 20, 2021
Filing Date:
November 13, 2019
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H04B1/10; H04B1/12
Foreign References:
| CN107453782A | 2017-12-08 | |||
| CN103986482A | 2014-08-13 | |||
| CN101793924A | 2010-08-04 | |||
| US20120140860A1 | 2012-06-07 |
Attorney, Agent or Firm:
ESSEN PATENT & TRADEMARK AGENCY (CN)
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