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Radio-frequency signal transceiver and communication system using same

A radio frequency signal and communication system technology, applied in the field of wireless communication, can solve problems such as loss and high power, and achieve the effect of reducing power loss

Inactive Publication Date: 2013-01-09
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method will cause a large power loss in the transmission of radio frequency (Radio Frequency, RF) signal in the cable

Method used

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  • Radio-frequency signal transceiver and communication system using same
  • Radio-frequency signal transceiver and communication system using same
  • Radio-frequency signal transceiver and communication system using same

Examples

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Embodiment Construction

[0013] Please refer to figure 1 , the wireless communication system 100 is a device capable of sending and receiving radio frequency signals, such as a base station or a repeater (Repeater) for wireless communication. The base station or transponder can be a wireless network or a cellular wireless communication base conforming to the 802.11 standard (i.e. WiFi) or 802.16 standard (i.e. WiMAX) of the Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers, IEEE) station or repeater. Wireless communication system 10 (comprising radio frequency module 101 and baseband module 30. Baseband module 30 is used for processing baseband signal (Baseband Signal). Radio frequency module 101 conversion becomes the intermediate frequency signal (Immediate Frequency Signal) from the baseband signal of baseband module 30 ) and radio frequency signal (Radio Frequency Signal), and convert the radio frequency signal received from the wireless channel ...

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Abstract

The invention discloses a radio-frequency signal communication system, which comprises antennas of wireless communication. Radio-frequency signals received by the antennas are sent to a basic frequency module through a receiving route of the system. A transmitting route of the system comprises a predistortion execution unit and an amplifier, wherein the predistortion execution unit is used for carrying out predistortion on the signals of the transmitting route to compensate distortion of the amplifying function of the amplifier. A coupler is used to acquire parts of radio-frequency signals sent by the amplifier as feedback signals of the predistortion, and the system makes the feedback signals and the signals received by the antennas multiplex the receiving route in a time sharing mode.

Description

technical field [0001] The invention relates to wireless communication, in particular to a radio frequency signal transceiver with amplifier predistortion function. Background technique [0002] Wireless communication devices, such as wireless networks, cellular wireless communication base stations, signal repeaters, etc., all use power amplifiers (Power Amplifiers) to amplify radio frequency signals. After the input signal of the amplifier is amplified, there will be a non-linearity problem (Non-linearity) between the input signal and the output signal. Before the signal is input into the amplifier, a digital distorter (Digital Distorter) can be used to perform predistortion processing (Predistortion) to improve the non-linear problem. [0003] If the power amplifier of the wireless communication device is connected to the antenna with a long cable, although the signal is pre-distorted and amplified, there will still be a large power loss when it is sent to the antenna aft...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04B7/005H04L25/49
Inventor 翁国执
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD