Home base station and frequency correcting method thereof

Abstract

The invention provides a home base station, which comprises a frequency offset judging module and a frequency correcting module, wherein the frequency offset judging module is used for calculating a frequency offset error of the home base station, and judging whether the frequency offset error exceeds preset frequency offset; when the frequency offset error exceeds the preset frequency offset, the frequency offset judging module records cumulative times that the frequency offset error exceeds the preset frequency offset and judges whether the cumulative times reach first preset times; when the cumulative times fail to reach the first preset times, the frequency offset judging module recalculates a frequency offset error a first time interval and judges whether the frequency offset error exceeds the preset frequency offset; and the frequency correcting module is used for correcting frequency according to the last frequency offset error when the cumulative times reach the first preset times. The invention further provides a frequency correcting method for the home base station. The home base station and the frequency correcting method thereof provided by the invention utilize average data to obtain network time delay, dynamically adjusts a frequency correction interval, reduces influence of the network time delay on frequency correction, and increases frequency synchronous correction precision of a time server.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a network-based home base station and a method for frequency correction thereof. Background technique [0002] The signal frequency accuracy of the home base station will gradually shift with time. At present, when using the time server to correct the frequency of the home base station, although the home base station can automatically correct its own frequency through the time server, the time server is easily affected by the network environment. . The current calibration technology is to regularly calibrate the time, and use the data obtained when the network is not in good condition to ensure the accuracy of frequency calibration. However, if the network environment continues to be poor, the femtocell cannot perform frequency calibration. Contents of the invention [0003] In view of this, it is necessary to provide a femtocell that can self-adaptively correct the frequ...

AI Technical Summary

Problems solved by technology

[0002] The signal frequency accuracy of the home base station will gradually shift with time. At present, when using the time server to correct the frequency of the home base station, although the home base station can automatically correct its own frequency through the time server, the time server is easily affected by the network environment.

The current calibration technology is to regularly calibrate the time, and use the data obtained when the network is not in good condition to ensure the accuracy of frequency calibration. However, if the network environment continues to be poor, the femtocell cannot perform frequency calibration

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