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Protection method for radio frequency power amplifier and RRU (remote RF (radio frequency) unit)

A technology of radio frequency power and amplifier, applied in the protection method of radio frequency power amplifier and RRU field, can solve the problems of radio frequency power amplifier burning, RRU system complexity, etc., achieve the effect of improving work safety and ensuring normal operation

Inactive Publication Date: 2013-07-03
ZTE CORP
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Problems solved by technology

[0003] Therefore, the current RRU system has become very complicated, and each functional module of the link must be carefully designed, otherwise it will easily cause the RF power amplifier to burn out

Method used

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  • Protection method for radio frequency power amplifier and RRU (remote RF (radio frequency) unit)
  • Protection method for radio frequency power amplifier and RRU (remote RF (radio frequency) unit)
  • Protection method for radio frequency power amplifier and RRU (remote RF (radio frequency) unit)

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Embodiment Construction

[0040] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0041] figure 1 It is a schematic diagram of an RRU according to an embodiment of the present invention. A control module, a detection module and a protection module are added to the RRU of this embodiment, such as figure 1 As shown, wherein, the control module is electrically connected with the digital predistorter and the radio frequency power amplifier, and the detection module and the protection module are electrically connected with the control module, the digital predistorter and the radio frequency power amplifier, wherein,

[0042] a signal source for generating a tr...

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Abstract

The invention provides a protection method for a radio frequency power amplifier and an RRU (remote RF (radio frequency) unit), wherein the RRU comprises the radio frequency power amplifier and a control module, the control module is electrically connected with the radio frequency power amplifier and is used for monitoring the state of data link in real time, and if the abnormality of the data link is monitored, the gain of the data link is adjusted to be minimum or smaller than a first threshold. The protection method can be used for detecting the state of the system and monitoring the state of the radio frequency power amplifier in real time in the starting process and the running process and at the abnormality recovery moment, so that the overburning of the radio frequency power amplifier caused by any abnormality in the system can be avoided. The protection method is applicable to various RRU types, the working safety of the radio frequency power amplifier in the system is improved, and the normal operation of the system is ensured.

Description

technical field [0001] The present invention relates to the technical field of RRU (Remote RF Unit, remote radio frequency unit) system security assurance technology, in particular to a method for protecting a radio frequency power amplifier and an RRU. Background technique [0002] Under the current operating conditions, operators' pursuit of CAPEX (Capital Expenditure, capital expenditure) and OPEX (Operating Expense, operating cost) has become the first requirement for suppliers. For wireless communication base station systems, about 80% of the power consumption is generated by radio frequency power amplifiers (PAs). Therefore, with the development of digital mobile communication technology, high-efficiency power amplifiers have become a requirement that must be met by major system equipment manufacturers. At the same time, as spectrum resources become increasingly scarce, modern communication systems often introduce digital predistortion (DPD) technology to improve the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/52
CPCH03F1/52H03F3/189H03F3/245H03F2200/447
Inventor 王蕾张作锋戴征坚
Owner ZTE CORP
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