Title:
METHOD AND APPARATUS FOR ANTENNA CALIBRATION CONTROL
Document Type and Number:
WIPO Patent Application WO/2023/087170
Kind Code:
A1
Abstract:
A method is disclosed which is for controlling antenna calibration of an antenna system residing in a wireless communication network. The antenna calibration is for compensation of impairments associated with operation of the antenna system. The method comprises performing over-the-air measurements of the antenna calibration during unused symbols defined by a predetermined pattern of unused symbols, wherein the predetermined pattern of unused symbols comprises unused symbols directly preceding synchronization symbols and/or unused symbols directly following synchronization symbols. For example, the unused symbols of the predetermined pattern of unused symbols may be symbols of slots that comprise one or more synchronization signal blocks (SSB). In some embodiments, the predetermined pattern comprises sequences of consecutive unused symbols. Each sequence of consecutive unused symbols which has a length exceeding a measurement length threshold may comprise one or more measurement opportunities, and each measurement may be performed during a respective measurement opportunity.
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Inventors:
NILSSON MAGNUS (SE)
BRAUN CHRISTIAN (SE)
ZHANG HAO (CN)
BRAUN CHRISTIAN (SE)
ZHANG HAO (CN)
Application Number:
PCT/CN2021/131145
Publication Date:
May 25, 2023
Filing Date:
November 17, 2021
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
ZHANG HAO (CN)
ZHANG HAO (CN)
International Classes:
H04B17/14
Domestic Patent References:
| WO2021114263A1 | 2021-06-17 | |||
| WO2020043310A1 | 2020-03-05 | |||
| WO2020043310A1 | 2020-03-05 | |||
| WO2021114263A1 | 2021-06-17 |
Foreign References:
| EP3623833A1 | 2020-03-18 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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