Automatic frequency-selecting GSM (Global System for Mobile Communication) digital optical fiber repeater and realizing method thereof

Abstract

The invention relates to an automatic frequency-selecting GSM (Global System for Mobile Communication) digital optical fiber repeater and a realizing method thereof. An automatic frequency-selecting DDC (Digital Digital Control) channel is additionally arranged in a downlink of a digital frequency-selecting repeater, all GSM frequency points are circularly traversed through correcting a working frequency point of the automatic frequency-selecting DDC channel, then the power of each frequency point is counted by a frequency point power counting module, an effective frequency point is selected according to the power of each frequency point by using a certain algorithm, and the working frequency point of the frequency-selecting repeater is configured according to the selected effective frequency point so that the repeater normally works. The invention has the beneficial effects that: the effective frequency point is selected by adopting a sweep frequency technology, a new frequency point can be rapidly added under the condition that the new frequency point appears, effective frequency point Delete Time is set in the original frequency point in use according to actual conditions so as to decide that the current frequency point is deleted within what duration when no new frequency point appears. The automatic frequency-selecting GSM digital optical fiber repeater is realized very simply and effectively, so that the difficulty and the complexity in changing the frequency points of the frequency-selecting repeater are reduced, and an important reference and realistic significance is provided for solving the technical problems in the similar design.

Description

technical field [0001] The invention relates to the field of mobile communication network coverage and optimization, and mainly relates to a GSM digital optical fiber repeater with automatic frequency selection and a realization method thereof. Background technique [0002] With the rapid development of mobile communication services, repeaters, as important equipment to improve weak and blind areas of mobile network signals, are widely used in mobile communication networks due to their advantages of less investment, simple structure, and convenient and flexible installation. The future mobile communication system has problems such as multi-frequency, multi-mode, multi-system and multi-standard, which limit the intercommunication and compatibility of various devices, so there is a real demand for the application of software radio technology in repeaters. In order to improve the cost performance of the repeater, it is a better solution to use digital technology to unify the ha...

AI Technical Summary

Problems solved by technology

[0004] The working frequency point of the digital frequency-selective repeater must be consistent with the frequency point of the donor base station in order to work normally. This method notifies each repeater to modify the frequency point. If the base station frequently changes the frequency point for network optimization, using the above method to modify the frequency point of the frequency selection repeater station is very inefficient and consumes a lot of manpower and material resources.

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