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Downlink carrier flatness compensation method and device

A compensation method and flatness technology, applied in the field of communication, can solve problems such as consumption, complex algorithm models, and increased operating costs

Active Publication Date: 2021-08-31
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, when performing flatness compensation on the RRU, it is necessary to build a compensation environment through hardware, and collect the power of the antenna port through the instrument, calculate the amplitude-frequency characteristic and the filter coefficient in the digital domain, so that the consumption of hardware equipment will be to a certain extent increase operating costs
At the same time, flatness compensation is performed according to the full working bandwidth of the RRU, which will lead to complex algorithm models and high resource occupancy

Method used

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  • Downlink carrier flatness compensation method and device
  • Downlink carrier flatness compensation method and device
  • Downlink carrier flatness compensation method and device

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Embodiment Construction

[0065] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0066] The execution subject of the downlink carrier flatness compensation method provided by the embodiment of the present invention may be an RRU, and the RRU may include an FPGA (Field Programmable Gate Array, Field Programmable Gate Array), a coupler, a feedback link, and a RFADC (Radio Frequency ADC, RF Analog-to-Digital Converter). Among them, the FPGA can be used to send data sources (such as digital domain power), the coupler can be used to obtain the feedback data of the RRU (such as the feedback data can be obtained from the input end of the duplexer in the RRU or the output end of the duplexer), and the feedback The link can perform frequency mixing proces...

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Abstract

The embodiment of the invention discloses a downlink carrier flatness compensation method and device, and the method comprises the steps: obtaining the feedback data of an RRU, and determining the full-bandwidth frequency domain characteristics of the RRU based on the feedback data; acquiring an actual frequency domain characteristic corresponding to the working bandwidth of the RRU from the full-bandwidth frequency domain characteristic; and determining a target compensation coefficient based on the actual frequency domain characteristic, and compensating the downlink carrier flatness according to the target compensation coefficient. The method can effectively reduce the operation cost, effectively simplify the algorithm model, reduce the resource consumption, and improve the flatness compensation efficiency.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a downlink carrier flatness compensation method and device. Background technique [0002] With the continuous development of network technology, the working bandwidth of a radio remote unit (Radio Remote Unit, RRU) in a base station is also developing towards a wider frequency band. After broadbanding, the interval between frequency points on the frequency band will also become larger, and how to improve the flatness of the downlink carrier becomes particularly important. [0003] At this stage, flatness compensation is usually performed according to the full working bandwidth of the RRU. Specifically, first, see figure 1 , the compensation environment can be built based on hardware devices such as instruments (such as spectrum analyzers, comprehensive testers, or power meters), test PCs (Personal Computers, personal computers), and RRUs. Then, the compensation ...

Claims

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Application Information

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IPC IPC(8): H04L5/14H04L25/03
CPCH04L25/03828H04L5/1461Y02D30/70
Inventor 王焕马笑言
Owner DATANG MOBILE COMM EQUIP CO LTD
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