US 11,942,976 B2
Communication anti-interference detection method and device
Lingyun Cai, Shenzhen (CN)
Assigned to XI'AN ZHONGXING NEW SOFTWARE CO., LTD., Xi'an (CN)
Appl. No. 17/615,884
Filed by ZTE Corporation, Shenzhen (CN)
PCT Filed Mar. 25, 2020, PCT No. PCT/CN2020/081197
§ 371(c)(1), (2) Date Dec. 2, 2021,
PCT Pub. No. WO2021/004092, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 201910608780.0 (CN), filed on Jul. 5, 2019.
Prior Publication US 2022/0311463 A1, Sep. 29, 2022
Int. Cl. H04B 1/10 (2006.01); H04B 1/16 (2006.01)
CPC H04B 1/1027 (2013.01) 20 Claims
OG exemplary drawing
 
1. A signal interference detection method, comprising:
demodulating an input radio-frequency signal to acquire a demodulated signal; and
convolving a first signal and a second signal to acquire a detection signal, so as to detect whether there is an interfering signal in the input radio-frequency signal, wherein the first signal is a signal acquired by performing inverse Fourier transform on the demodulated signal, and the second signal is a signal acquired by performing phase inversion on a preset baseband signal.