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Method and system for base station baseband unit to protect radio frequency remote unit power amplifier

A technology of radio frequency remote unit and baseband unit, applied in electrical components, wireless communication and other directions, can solve the problems of data entry, power amplifier burnout, etc., to achieve the effect of protecting power amplifier and increasing processing

Active Publication Date: 2019-01-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method and system for base station baseband unit to protect the power amplifier of the remote radio unit, which can better solve the problem caused by artificially initiating BBU system reset, RRU interface board reset or product subsystem reset when abnormal data enters the RRU power amplifier. Amplifier burning problem

Method used

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  • Method and system for base station baseband unit to protect radio frequency remote unit power amplifier
  • Method and system for base station baseband unit to protect radio frequency remote unit power amplifier
  • Method and system for base station baseband unit to protect radio frequency remote unit power amplifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1, BBU system reset

[0065] 1. Base station reset

[0066] Step 1. The user initiates a reset of the base station. The human-computer interaction module detects the reset event and sends a message to the control module. The control module sends a reset message to all RRUs. For the logic diagram of the main control board, see Figure 4 ;

[0067] In the second step, the RRU resets according to the reset message received, and the RRU power amplifier is turned off. At this time, although there is abnormal data, it will not enter the RRU power amplifier;

[0068] In the third step, the RRU responds to the BBU with a confirmation message that the reset is successful;

[0069] Step 4, after the BBU receives the confirmation message, the control module sends a power-off message to all peripheral boards, so that the peripheral boards are powered off and reset;

[0070] Step 5: The control module starts the reset of the main control board.

[0071] 2. System vers...

Embodiment 2

[0083] Embodiment 2, RRU interface board reset

[0084] The common-mode RRU is connected to two RRU interface boards, and the RRU interface boards are optical interface boards, such as Figure 5 As shown, if one of the optical interface boards is reset to turn off the power amplifier of the RRU, the service of the cell coming from the other optical interface board will be directly interrupted. Therefore, the IQ link of the deleted RRU is used to reset the optical interface board (the IQ The link corresponds to the IQ link of the interface board to be reset) to prevent abnormal data from flowing into the power amplifier of the RRU through the IQ channel.

[0085] Step 1: The user triggers to reset the RRU interface board;

[0086] In the second step, the human-computer interaction module detects a reset event, notifies the control module, and the control module notifies the product to delete the IQ link of the RRU, and the IQ link is deleted, so that no abnormal data enters th...

Embodiment 3

[0089] Embodiment 3, product subsystem reset

[0090] For the dual-mode RRU, the RRU carries both the TD-SCDMA service and the TDLTE service. When the TD-SCDMA product subsystem is reset, it is not advisable to turn off the power amplifier of the RRU, which will cause the interruption of the TDLTE service. Therefore, when the TD-SCDMA product is reset, the RRU power amplifier is protected by deleting the corresponding IQ link of the TD-SCDMA product.

[0091] 1. Product standard reset

[0092] The first step, the user triggers the product standard reset;

[0093] Step 2: After the human-computer interaction module detects the reset event, it notifies the control module, and the control module notifies the product to reset the product standard;

[0094] The third step, the product deletes the product business;

[0095] The fourth step, the product deletes the IQ link of the RRU, so that no abnormal data enters the RRU power amplifier, thereby protecting the RRU power amplifi...

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Abstract

Provided are a method and system for protecting a power amplifier of a radio remote unit by a base band unit of a base station. The method comprises: a base band unit (BBU) detecting a reset event initiated by a user in real time; if a reset event is detected, deleting an in-phase / quadrature-phase IQ link of a radio remote unit (RRU) or controlling a power amplifier of the RRU to be switched off; and after the reset event has finished, re-establishing a link of the RRU or controlling the power amplifier of the RRU to be switched on.The present invention solves the problem of a power amplifier burning out caused by abnormal data entering the power amplifier of an RRU when a BBU system reset, RRU interface board reset or product subsystem reset is manually initiated, so as to achieve the effect of protecting the RRU.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method and a related system for protecting a radio frequency remote unit RRU power amplifier on the side of a baseband unit BBU. Background technique [0002] The base station system consists of BBU and RRU, such as figure 1 shown. The power amplifier of the RRU is the core component of the RRU, and its working stability and reliability directly affect whether the base station can directly operate and ensure the normal coverage of the cell. Since the power amplifier is a high-power device, during the operation of the base station, if there is abnormal data, such as wide-spectrum signals, high average power, glitches, etc. entering, it may cause the power amplifier to burn out. [0003] At present, most power amplifier protection technologies are self-protected on the RRU side, such as figure 2 shown. It is realized through the combination of hardware detection a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/04H04W88/08
CPCH04W24/04H04W88/085
Inventor 滕秋菊庄荣海
Owner ZTE CORP
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