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Method, device, and base station system for transmitting, receiving and processing radio frequency signals

A technology for transmitting and receiving equipment and radio frequency signals, which is applied to baseband system components, transmission systems, and modulated carrier systems, etc., and can solve problems such as high requirements for backplanes, loss of radio frequency cables, and difficulty in implementing base station systems

Active Publication Date: 2016-03-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the first RRU structure, heat is generated when the first analog signal and the third analog signal pass through the radio frequency cable, causing loss of the radio frequency cable and affecting the efficiency of the base station system in transmitting the first analog signal and receiving the third analog signal; the second In the two RRU structures, the backplane transmits high-speed digital signals, which consumes a lot of power and has high requirements on the backplane, which requires high cost and is difficult to implement in the base station system.

Method used

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  • Method, device, and base station system for transmitting, receiving and processing radio frequency signals
  • Method, device, and base station system for transmitting, receiving and processing radio frequency signals
  • Method, device, and base station system for transmitting, receiving and processing radio frequency signals

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Embodiment 1

[0085] see figure 1 , this embodiment provides a radio frequency signal transceiver device, the device includes a transmitting circuit 101, a pre-distortion circuit 102 and a receiving circuit 103:

[0086] The transmitting circuit 101 is configured to perform power amplification on the input first analog signal, wirelessly transmit the power amplified first analog signal, and output the power amplified first analog signal to the predistortion circuit 102;

[0087] The pre-distortion circuit 102 is configured to convert the power-amplified first analog signal output by the transmitting circuit 101 into a second analog signal, and output the second analog signal, and the second analog signal is used to feed back the distortion of the first analog signal degree, to pre-compensate the first analog signal according to the degree of distortion;

[0088] The receiving circuit 103 is configured to wirelessly receive the third analog signal, and process and output the third analog si...

Embodiment 2

[0101] This embodiment provides a radio frequency signal transceiver device, the device includes a transmitting circuit 101, a pre-distortion circuit 102 and a receiving circuit 103:

[0102] The transmitting circuit 101 is configured to perform power amplification on the input first analog signal, wirelessly transmit the power amplified first analog signal, and output the power amplified first analog signal to the predistortion circuit 102;

[0103] The pre-distortion circuit 102 is configured to convert the power-amplified first analog signal output by the transmitting circuit 101 into a second analog signal, and output the second analog signal, and the second analog signal is used to feed back the distortion of the first analog signal degree, to pre-compensate the first analog signal according to the degree of distortion;

[0104] The receiving circuit 103 is configured to wirelessly receive the third analog signal, and process and output the third analog signal.

[0105] ...

Embodiment 3

[0125] see Figure 11 , this embodiment provides a radio remote unit RRU, the RRU includes at least one radio frequency signal transceiver device 1101 and a digital circuit 1102;

[0126] The digital circuit 1102 is configured to convert at least one input first digital signal into a corresponding number of first analog signals, and output the corresponding number of first analog signals to a corresponding number of radio frequency signal transceiver devices 1101; The second analog signal output by the signal transceiver device 1101 is converted into a second digital signal corresponding to the number of channels, and the second digital signal corresponding to the number of channels is output, and the second analog signal is used to feed back the distortion degree of the first analog signal to Compensate the first analog signal in advance according to the degree of distortion; convert the third analog signal output by at least one radio frequency signal transceiver device 1101...

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Abstract

The present invention discloses a radio frequency signal transceiving and processing method, device, and base station system, which relates to the communications field. The radio frequency signal transceiver includes: a transmission circuit, configured to perform power amplification on an input first analog signal, wirelessly transmit the first analog signal after power amplification, and output the first analog signal after power amplification to a pre-distortion circuit; the pre-distortion circuit, configured to convert the first analog signal after power amplification into a second analog signal and output the second analog signal, where the second analog signal is used to feed back distortion of the first analog signal so as to compensate the first analog signal in advance according to the distortion; and a receiving circuit, configured to wirelessly receive a third analog signal, and process and output the third analog signal. The present invention can improve efficiency in receiving and transmitting a radio frequency signal, reduce a cost of a base station system, and reduce a difficulty in implementing the base station system.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, equipment and base station system for transmitting, receiving and processing radio frequency signals. Background technique [0002] The base station system is a wireless signal transceiver device that provides services for mobile users. The base station system includes BBU (BuildingBasebandUnit, indoor baseband processing unit) and RRU (RadioRemoteUnit, remote radio module). Fiber optic connections are used between BBU and RRU to realize distributed networking. [0003] The existing RRU has two structures. The first type of RRU includes a radio frequency unit, an antenna and a radio frequency cable, where the radio frequency unit includes CPRI (CommonPublicRadioInterface, public radio frequency interface), DAC (DigitalAnalogConverter, digital-to-analog converter) / ADC (AnalogDigitalConverter, analog-to-digital converter), up and down conversion circuit , PA (PowerAmpl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/49H04L25/02H04B1/40
CPCH03F1/3241H03F1/34H03F3/24H04B1/0475H04B2001/0425H04B2001/0433H04L27/367
Inventor 欧健李云岗盛海强李莹君
Owner HUAWEI TECH CO LTD
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