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RF front end module online monitoring apparatus and method in CDMA base station

A radio frequency front-end and base station technology, applied in the field of online monitoring devices, can solve problems such as poor contact, poor connector contact, loose radio frequency cables, etc., and achieve the effect of low cost and improved intelligent maintenance capabilities

Inactive Publication Date: 2009-01-07
HAIAN INST OF HIGH TECH RES NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Faults that are not related to the current magnitude of the RF front-end module cannot be monitored
For example: the coupling capacitor on the LNA link is disconnected or soldered due to an earthquake; the internal grid lead wire of the amplifier falls off due to vibration; the RF cable inside the RF front-end module is loose and the contact is not good; no, wait
[0006] 2. Due to the limitation of the threshold definition of the current detection circuit, some faults related to the current magnitude cannot be detected correctly
3. If the RF front-end module (such as LNA) is faulty but does not give an alarm, it will mislead the base station maintenance personnel to overhaul other normal modules, resulting in delays in base station maintenance and losses

Method used

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  • RF front end module online monitoring apparatus and method in CDMA base station
  • RF front end module online monitoring apparatus and method in CDMA base station
  • RF front end module online monitoring apparatus and method in CDMA base station

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Embodiment Construction

[0028] The concrete application example one of the present invention in CDMA multi-carrier mobile communication base station is described as follows:

[0029] refer to figure 1 , the reverse link of the CDMA multi-carrier mobile communication base station adopts the main and diversity system structure, wherein the main and diversity links of the RF front-end module have an LNA respectively, namely: the main set link LNA1 and the diversity link LNA2, the amplification The output ports of the transmission signal are LNA1-OUT and LNA2-OUT respectively; there is one RX on the main and diversity links of the transceiver module, namely: the main set link RX1 and the diversity link RX2, and the transmission signal input ports are respectively for RX1-IN and RX2-IN. The LNA1-OUT output port is connected with the RX1-IN input port, and the LNA2-OUT output port is connected with the RX2-IN input port; the connection conversion module includes a radio frequency switch circuit monitored ...

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Abstract

The disclosed on-line monitor device for RF front-end module in CDMA base station comprises: two LNA link modules in RF front-end module served the reverse main link and diversity link respectively; two RX link modules in transceiver module served he two links, too; a connection and conversion module for the LNA and RX interfaces arranged in or between the RF front-end module and transceiver module.

Description

technical field [0001] The invention relates to an on-line monitoring device and method for a radio frequency front-end module in a CDMA base station system. Background technique [0002] Generally speaking, CDMA base station systems are classified according to large modules and are monitored on-line separately. Its purpose is to enable the background monitoring system to automatically and quickly determine which large module is faulty when the base stations scattered in various places fail, and quickly solve the fault without the need for professionals to stay for a long time or carry expensive instruments to travel long distances. [0003] For the reverse link of the CDMA base station, it is classified by large modules, including: radio frequency front-end (RFE) module, transceiver (TRX) module, etc. When the reverse link of the base station fails, the fault point may be on the radio frequency front-end module, or on other modules of the reverse link, such as the transcei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/34H04B17/00H04W24/00H04W24/04H04W24/08H04W88/08
Inventor 李京海
Owner HAIAN INST OF HIGH TECH RES NANJING UNIV
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