US 11,894,966 B2
Method and apparatus for estimating frequency offset, electronic device and computer-readable medium
Shuangxi Li, Guangdong (CN); Yangzhong Yao, Guangdong (CN); Nanshan Cao, Guangdong (CN); and Yunpeng Li, Guangdong (CN)
Assigned to SANECHIPS TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 17/916,327
Filed by ZTE CORPORATION, Guangdong (CN)
PCT Filed Apr. 2, 2021, PCT No. PCT/CN2021/085304
§ 371(c)(1), (2) Date Sep. 30, 2022,
PCT Pub. No. WO2021/204084, PCT Pub. Date Oct. 14, 2021.
Claims priority of application No. 202010268523.X (CN), filed on Apr. 7, 2020.
Prior Publication US 2023/0144980 A1, May 11, 2023
Int. Cl. H04L 27/26 (2006.01); H04L 25/49 (2006.01)
CPC H04L 27/2657 (2013.01) [H04L 25/4917 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for estimating a frequency offset, comprising:
extracting sampling points from an input signal according to preset intervals to obtain a plurality of groups of sampling points, with the preset interval of the groups of sampling points being different;
performing processes on a current sampling point and the groups of sampling points to obtain data of arguments of complex numbers corresponding to the preset intervals; and
determining an estimation value of a frequency offset of a current input signal according to the data of arguments of complex numbers corresponding to the preset intervals.