Title:
FREQUENCY OFFSET ESTIMATION METHOD AND APPARATUS, ELECTRONIC DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/040225
Kind Code:
A1
Abstract:
Disclosed are a frequency offset estimation method, a frequency offset estimation apparatus, an electronic device, and a computer-readable storage medium. The frequency offset estimation method comprises: using a first frequency offset estimation method to perform frequency offset estimation on a demodulation reference signal (DMRS signal) sent by a terminal, to obtain a first frequency offset estimation value (100); using a second frequency offset estimation method to perform frequency offset estimation on the DMRS signal sent by the terminal, to obtain a second frequency offset estimation value (101); and determining a confidence factor according to the first frequency offset estimation value and the second frequency offset estimation value, and calibrating the second frequency offset estimation value according to the confidence factor to obtain a final frequency offset estimation value (102).
Inventors:
ZHAO LIJUAN (CN)
BIAN QING (CN)
BIAN QING (CN)
Application Number:
PCT/CN2022/081933
Publication Date:
March 23, 2023
Filing Date:
March 21, 2022
Export Citation:
Assignee:
SANECHIPS TECH CO LTD (CN)
International Classes:
H04L27/26
Domestic Patent References:
| WO2014116944A2 | 2014-07-31 |
Foreign References:
| CN110199506A | 2019-09-03 | |||
| CN108337202A | 2018-07-27 |
Other References:
DU FENG, LI GUANG-XIA ,XIANG ZHONG-W U ,TANG JING-YU ,ZHANG XUN ,YUN FEI-LONG: "A Feed-forward Frequency Offset Estimation Algorithm Based on Time and Frequency Domain", DIANZI ZHILIANG - ELECTRONICS QUALITY, GUANGZHOU SHI JULIU XINXI KEJI CHUANMEI YOUXIAN GONGSI,DOMINANT INFORMATION TECHNOLOGY MEDIA COMPANY LIMITED, CN, no. 5, 20 May 2016 (2016-05-20), CN , pages 1 - 6, XP093048353, ISSN: 1003-0107
Attorney, Agent or Firm:
TEE&HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)
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