Intelligent antenna calibration system based on base band remote push technology and its method

Abstract

This invention relates to an intelligent antenna calibration system and a method based on a baseband zooming out technology, in which, the system includes: indoor devices of a base station used in realizing maintaining software of a physical layer, high level protocol and operation of the base station and a outdoor zooming out device connected with the indoor device by fiber used in realizing calibration of intelligent antenna and functions of digital IF, analog IF and RF. The method includes: A, carrying out initialized calibration to RF parameter in the zooming out device, B, the MCU in the outdoor device begins periodic real-time calibration and identifies its kind, C, realizing periodic real-time calibration to baseband in the outdoor zooming out device, D, controlling related state of the antenna timely according to the calibration result including the on and off states, E, the information of the antenna state is reported to the indoor device by the zooming out device via the operation maintenance channel in the zooming out protocol.

Description

technical field [0001] The present invention relates to the field of wireless communication technology, in particular to a smart antenna calibration system and a method thereof based on remote baseband technology. Background technique [0002] In recent years, in the field of modern wireless communication technology, smart antenna technology has become one of the most attractive technologies in the field of mobile communication. In other words, as a space division technology, the smart antenna technology has become the most attractive technology after frequency division multiplexing, time division multiplexing and code division multiplexing. A smart antenna array is used in the wireless base station to shape the transmitting beam of the base station according to the position of the user, which can greatly reduce the interference in the cell and improve the system capacity. [0003] In order for the smart antenna to receive and transmit signals accurately, it is necessary to...

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Problems solved by technology

[0013] The technical problem solved by the present invention is to provide a smart antenna calibration system with remote baseband technology and its method, so as to solve the problem of excessive occupation of remote baseband optical fibers in the process of calibrating smart antennas using remote baseband technology in the prior art. bandwidth resource problem, and it is not easy to locate the fault of each channel of the smart antenna

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