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Overpower protection method and device of far-end radio-frequency system of base station

A technology of over-power protection and remote radio frequency, applied in the field of communication, can solve the problem of poor real-time performance of over-power protection, and achieve the effect of real-time power protection control

Active Publication Date: 2013-07-24
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0007] The present invention provides an overpower protection method and device for a remote radio frequency system of a base station, which is used to solve the problem of poor real-time performance when implementing overpower protection in the prior art

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  • Overpower protection method and device of far-end radio-frequency system of base station

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Embodiment Construction

[0029] In order to solve the problem of poor real-time performance of overpower protection in the prior art, in the embodiment of the present invention, the power of the current downlink time slot of an antenna is obtained through the output data of the output interface part of the IFU in the RRU or the output data of the DUC part, When the power of the current downlink time slot exceeds the set overpower protection threshold value of the antenna, the downlink data corresponding to the antenna in the FPGA is cleared.

[0030] According to the position of the over-power protection point, it can be divided into two schemes: the FPGA protection of the interface part and the intermediate frequency FPGA protection.

[0031] The FPGA protection scheme of the interface part is: according to the output interface part of the IFU in the RRU, the power of the current downlink time slot of the antenna is obtained. In this way, in order to realize the over-power protection more accurately, ...

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Abstract

The invention discloses an overpower protection method and a device of a far-end radio-frequency system of a base station, which solve the problem of poorer real-time property when the prior art realizes overpower protection. The method comprises the following steps of: obtaining the power of the current descending time slot of an antenna by part of the output data of an output interface of an IFU or part of the output data of a DUC in an RRU; and when the power of the current descending time slot exceeds the set overpower protection threshold value of the antenna, eliminating descending datacorresponding to the antenna in an FPGA. The technical scheme of the embodiment of the invention is simple and universal, can be realized with very small expense on an interface FPGA part or a medium-frequency FPGA and has strong real-time property. Through the practical verification, the invention can protect overpower and meets the practical requirement.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an overpower protection method and device for a remote radio frequency system of a base station. Background technique [0002] The downlink of the Remote RF Unit (RRU) of the Time Division Synchronous Code Division Multiple Access (TD-SCDMA) base station, including the interface part, Digital Up Converter (DUC) unit, Digital Analog Converter (Digital Analog Converter, DAC) unit and transmitter (TransmitUnit) and power amplifier (PA). Among them, the interface part, DUC unit and DAC unit are on the intermediate frequency unit (Intermediate Frequency Unit, IFU), and the transmitter and the power amplifier are generally on the radio frequency transceiver board (Transmitting and Receiving Board, TRB). The IFU receives the control signal and data signal from the indoor unit of the base station through the optical fiber, and sends the data to the DUC unit after being analyzed b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/15H04B7/005H04B1/40H04B1/44
Inventor 杨明袁续昆王新生岳卫金马媛
Owner DATANG MOBILE COMM EQUIP CO LTD
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