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Title:
FREQUENCY OFFSET COMPENSATION METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/129844
Kind Code:
A1
Abstract:
The present application relates to a frequency offset compensation method and apparatus, a device, and a storage medium. The method comprises: acquiring frequency domain channel response sets corresponding to at least two demodulation reference signals, wherein the at least two demodulation reference signals are sent by the same antenna interface within a preset time period; determining a reference phase difference between the at least two demodulation reference signals according to the frequency domain channel response sets corresponding to the at least two demodulation reference signals; then, determining a phase difference to be compensated for of each data signal according to a symbol position of each demodulation reference signal, a symbol position of the data signal, and the reference phase difference; and finally, performing frequency offset compensation on each data signal according to the phase difference to be compensated for, such that a carrier frequency corresponding to each data signal is obtained by means of compensation according to the at least two demodulation reference signals, thereby reducing the difference between the carrier frequency of a receiving end and the carrier frequency of a sending end, and further improving the accuracy of the information obtained when radio frequency signals are demodulated according to carrier frequencies.

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Inventors:
LIU ZHONGJUN (CN)
ZHANG WEI (CN)
RUAN JUNBING (CN)
JIANG CHENGYU (CN)
WANG CHEN (CN)
DING BAOGUO (CN)
Application Number:
PCT/CN2020/139732
Publication Date:
July 01, 2021
Filing Date:
December 26, 2020
Export Citation:
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Assignee:
COMBA NETWORK SYSTEMS CO LTD (CN)
International Classes:
H04L27/00
Foreign References:
CN111224910A2020-06-02
CN107294678A2017-10-24
CN102480456A2012-05-30
CN110177066A2019-08-27
EP3579476A12019-12-11
Attorney, Agent or Firm:
GUANGZHOU RUNHE INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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