Outdoor unit and method thereof for improving output performance

An outdoor unit and output performance technology, applied in the field of data processing, can solve problems such as poor output performance, and achieve the effect of improving output performance and achieving linearization

Active Publication Date: 2010-07-07
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides an outdoor unit and its method for imp

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  • Outdoor unit and method thereof for improving output performance
  • Outdoor unit and method thereof for improving output performance
  • Outdoor unit and method thereof for improving output performance

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[0020] The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

[0021] figure 1 A schematic flowchart of the method provided by the first embodiment of the present invention includes:

[0022] Step 11: The ODU receives the first analog signal sent by the IDU, and down-converts the first analog signal into a first digital baseband signal.

[0023] The IDU may send the first analog signal to the ODU through a multiplexer (Multiplexer) between the IDU and the ODU. The multiplexer can transmit signals in a variety of frequency bands and is isolated from each other. Usually, the IDU and the ODU are connected by a multiplexer. Of course, it can be understood that other devices with the same function as the multiplexer can also be used. .

[0024] Step 12: The ODU receives the second analog signal output by the PA, and down-converts the second analog signal into a second digital baseband signal....

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Abstract

The embodiment of the invention discloses an outdoor unit and a method thereof for improving output performance. The method comprises the following steps that: the outdoor unit (ODU) receives a first analog signal sent by an indoor unit (IDU) and converts the received first analog signal into a first digital baseband signal through down-conversion; and the ODU receives a second analog signal output by a power amplifier (PA) and converts the received second analog signal into a second digital baseband signal through the down-conversion; the ODU obtains a digital predistortion coefficient according to the first and second digital baseband signals; and the ODU performs digital predistortion processing on the first digital baseband signal by adopting the digital predistortion coefficient to acquire a signal after the digital predistortion processing and sends the signal to the power amplifier. The outdoor unit and the method thereof for improving the output performance can realize the linearization of a sender link without requiring the PA to work in a linear mode.

Description

technical field [0001] The invention relates to data processing technology, in particular to an outdoor unit and a method for improving output performance thereof. Background technique [0002] As backbone transmission network equipment, microwave transmission equipment can be used to connect base stations and base station controllers. Corresponding microwave transmission devices can be respectively set on the base station side and the base station controller side, and the microwave transmission devices on both sides usually include outdoor equipment and indoor equipment respectively, wherein the outdoor equipment includes a microwave antenna and an outdoor unit (Out Door Unit, ODU), The indoor equipment includes an indoor unit (In Door Unit, IDU). The signal sent from the IDU on one side is sent to the other side after passing through the ODU and microwave antenna on this side. In order to prevent the transmitted signal from being distorted, it can be realized by ensuring ...

Claims

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Application Information

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IPC IPC(8): H04B7/005H04L27/00
CPCH04B2001/0425H04B1/0475H03F1/3241
Inventor 王伟许少峰宋亮
Owner HUAWEI TECH CO LTD
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