Method, device and base station system for radio-frequency signal transceiving

A technology of radio frequency signal and transceiver equipment, applied in baseband system parts, transmission system, modulated carrier system, etc., can solve the problem of radio frequency cable loss, high power consumption, and affecting the base station system to transmit the first analog signal and receive the third analog signal Efficiency and other issues

Active Publication Date: 2013-05-15
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 sig...

Method used

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  • Method, device and base station system for radio-frequency signal transceiving
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  • Method, device and base station system for radio-frequency signal transceiving

Examples

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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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PUM

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Abstract

The invention discloses a method, a device and a base station system for radio frequency signal transceiving and belongs to the field of communication. The device for the radio-frequency signal transceiving comprises a radiating circuit used for amplifying power of input first analog signals, radiating the first analog signals after the power of the first analog signals are amplified in a wireless mode and outputting the analog signals after the power of the first analog signals are amplified to a predistortion circuit, the predistortion circuit and a receiving circuit, wherein the predistortion circuit is used for conversing the first analog signals to second analog signals after the power of the first analog signals is amplified and outputting the second analog signals which are used for feeding back distortion degree of the first analog signals, the first analog signals are pre-compensated according to the distortion degree, and the receiving circuit is used for receiving third analog signals in a wireless mode and processing and outputting the third analog signals. The method, the device and the base station system for the radio frequency signal transceiving can improve radio frequency signal transceiving efficiency, reduce cost of the base station system, and reduce achievement difficulty of 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 (Building Baseband Unit, indoor baseband processing unit) and RRU (Radio Remote Unit, remote radio module). The BBU and RRU are connected by optical fibers 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 (Common Public Radio Interface, public radio interface), DAC (Digital Analog Converter, digital-to-analog converter) / ADC (Analog Digital Converter, analog-to-digital Converter), up-down conversion circuit, PA (Power Amplifier, ...

Claims

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Application Information

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IPC IPC(8): H04L25/49H04L25/02H04B1/40
CPCH04L25/49H03F1/3241H03F1/34H03F3/24H04B1/0475H04B2001/0425H04B2001/0433H04L27/367
Inventor 欧健李云岗盛海强李莹君
Owner HUAWEI TECH CO LTD
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