Method for synchronizing air interfaces of home base station

The invention provides a method for synchronizing air interfaces of a home base station, comprising the following steps: after the home base station realizes initial synchronization with a neighborhood macro station, when UE (user equipment) does not exist in a coverage area of the home base station, realizing air interface synchronization of the home base station and the neighborhood macro station in the periodical synchronization process of the home base station and the neighborhood macro station; when the UE exists in the coverage area of the home base station, using the home base station to configure UE measurement and report OTD (observation time difference) of SFN (system frame number)-SFN in a periodical triggering mode; and when the home base station judges that the measurement result of the OTD of the SFN-SFN is more than a preset threshold, executing primary periodical synchronization process of the home base station and the neighborhood macro station, or according to the measurement result of the OTD of the SFN-SFN, adjusting air interface time of the home base station, thus realizing the air interface synchronization of the home base station and the neighborhood macro station. The method is utilized to decrease the air interface measurements for other home base stations and influences on the UE in the coverage area of the home base station.