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Low noise amplifier protecting method and device

A technology of low noise amplifier and protection device, applied in the field of wireless communication, to achieve the effect of reliable protection and improvement of system performance

Active Publication Date: 2013-12-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The main purpose of the present invention is to provide a low-noise amplifier protection method and device, aiming to solve the possible failure problem of the low-noise amplifier of the RRU in the TD-SCDMA system, to protect the low-noise amplifier flexibly and reliably, and to protect the low-noise amplifier. In the process, the delay parameters of the signal chain devices are flexibly compensated to improve system performance

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Embodiment Construction

[0037] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] refer to figure 1 , figure 1 It is a schematic flow chart of the first embodiment of the low noise amplifier protection method of the present invention; as figure 1 As shown, the low noise amplifier protection method of the present invention includes the following steps:

[0039] Step S01, setting the starting point of the signal frame according to the received signaling information, and setting the starting point of the signal frame as the switching starting point;

[0040] Before operating the link, first initialize the link and turn off the power of all modules on the link. The starting point of the signal frame is set according to the obtained signaling...

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Abstract

The invention discloses a low noise amplifier protecting method. The method includes: setting a signal frame starting point according to received signaling information, and setting the signal frame starting point as a switching starting point; controlling a power switch according to logic relations and time sequence relations of the switching starting point and control signals. The invention further discloses a low noise amplifier protecting device. By the method, a low noise amplifier can be protected flexibly and reliably, delay parameters of signal link devices can be compensated flexibly during protection, uplink-downlink time slot switching is unaffected by power switch delay of simulated devices, and system performance is increased.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and device for protecting a low noise amplifier. Background technique [0002] According to the TD-SCDMA (Time Division-Synchronization Code Division Multiple Access, Time Division Synchronization Code Division Multiple Access technology) protocol, the TD-SCDMA system works in accordance with the TDD (Time Division Duplex, Time Division Duplex) mode, for multi-antenna RRU (Radio Remote Unit, remote radio unit) performs time-division control on the radio frequency switch to complete the uplink and downlink switching of the channel. [0003] The downlink control of the radio frequency link usually adopts the following method: First, receive two analog high-frequency signals from the DAC (Digital-to-Analog Convert, digital-to-analog converter) output IQ (In-phase / Quadrature component, in-phase / quadrature part), and then The filter of the intermediate frequen...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/52
Inventor 唐业衡瞿金桥宋蓓
Owner ZTE CORP