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Active antenna, base station, method for refreshing amplitude and phases and signal processing method

An active antenna and amplitude technology, applied in antennas, antenna parts, diversity/multi-antenna systems, etc., can solve problems such as unreliable and complex phase-shifting network structures, and achieve the effect of avoiding complex structures

Active Publication Date: 2010-02-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides an active antenna or base station, which is used to solve the problem of complex structure and unreliable phase-shifting network

Method used

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  • Active antenna, base station, method for refreshing amplitude and phases and signal processing method
  • Active antenna, base station, method for refreshing amplitude and phases and signal processing method
  • Active antenna, base station, method for refreshing amplitude and phases and signal processing method

Examples

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Effect test

Embodiment 1

[0057] see figure 2 , is a schematic structural diagram of an active antenna or a base station provided in Embodiment 1 of the present invention. The active antenna includes an antenna dipole array 11, a transceiver unit array 12, a digital processing unit 13 and a transceiver calibration unit 14, wherein,

[0058] The antenna dipole array 11 includes antenna dipoles for converting electromagnetic wave signals and radio frequency signals;

[0059] The transceiver unit array 12 includes a transceiver unit. When receiving a signal, the transceiver unit demodulates the radio frequency signal of the antenna oscillator into an IQ analog signal and outputs it to the digital processing unit 13; , the transceiver unit modulates and up-converts the IQ analog signal of the digital processing unit 13 into a radio frequency signal, and outputs it to the antenna oscillator;

[0060] The digital processing unit 13, when receiving a signal, the digital processing unit 13 converts the IQ a...

Embodiment 2

[0149] In the embodiment of the present invention, the DBF processing module (digital beamforming DBF receiving module, DBF transmitting module) in the digital processing unit 13 is based on the mode or carrier, and can process multi-mode and multi-carrier transceiver IQ analog signals.

[0150] see Figure 7 , is the schematic diagram of the receiving DBF processing module based on mode or carrier:

[0151] The IQ analog signals of each receiving channel (assumed to be M receiving channels) are converted into M IQ digital signals through the ADC, and each of the IQ digital signals of the M receiving channels is connected with the digitally controlled oscillator NCO1 and NCO2 based on the mode or carrier ,...The signals output by the NCON are multiplied (digital down-conversion), and divided into N-channel single-mode receiving signals or N-channel single-carrier receiving signals;

[0152] The first single-mode receiving signal of the M receiving channels or the first single...

Embodiment 3

[0166] On the basis of the active antenna or base station provided in Embodiment 1 and / or Embodiment 2 of the present invention, a simple power division and combination network can be added, see Figure 9 , Figure 9 A schematic structural diagram of an active antenna or a base station provided by an embodiment of the present invention.

[0167] The difference between Embodiment 3 of the present invention and Embodiment 1 is that a power division and combination network 75 is added between the antenna element array 71 and the transceiver unit array 72. When receiving a signal, the power division and combination network 75 can Combine the weak signals received by a plurality of antenna elements into one way and transmit them to the transceiver unit in the transceiver unit array 72; The split-combine network is transmitted to multiple antenna elements.

[0168] The power dividing and combining network in the embodiment of the present invention can be composed of a Wilkinson po...

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Abstract

The embodiment of the invention discloses an active antenna, a base station, a method for refreshing amplitude and phases and a signal processing method, which are invented for solving the problems of complex structure and less unreliability of a phase shifting network. The active antenna or the base station comprises an antenna oscillator array, a transceiver unit array, a digital processing unit and a transceiving calibration unit. When receiving signals, a transceiver unit modulates radio frequency signals of an antenna oscillator into IQ analog signals by down-conversion, and outputs the IQ analog signals to the digital processing unit; and the digital processing unit converts the IQ analog signals after down-conversion modulation into IQ digital signals, and forms digital beams of the IQ digital signals according to the transceiving calibration unit. When transmitting the signals, the transceiver unit modulates the IQ analog signals of the digital processing unit into the radio frequency signals by up-conversion, and outputs the radio frequency signals to the antenna oscillator; and the digital processing unit converts signals of a base band unit into IQ digital signals by serial / parallel conversion, and forms digital beams of the IQ digital signals according to the transceiving calibration unit.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to an active antenna, a base station, a method for refreshing amplitude and phase, and a signal processing method. Background technique [0002] In the mobile communication system, the antenna unit installed on the top of the tower is usually used to receive and transmit signals. The antenna unit is generally passive and needs to be provided by a distributed base station (RRU, RF Remote Unit) to provide high-power transmission signals, and then communicate with The RRU transmits the signal through the antenna unit connected to the feeder. [0003] see figure 1 , the antenna unit in the prior art, including antenna oscillator array 5, phase-shifting network and power splitting and combining network 6, multiplexing and demultiplexing circuit module (BiasTee) 9, transmission mechanism 7 and remote control unit (RCU, Remote Control Unit) 8. The distributed base station includes tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/04H04L1/06
CPCH04B17/0062H01Q1/246H04B7/0842H01Q3/34H04B17/0005H04B7/0617H04B17/11H04B17/21H01Q3/267
Inventor 朱元荣陈建军何卓彪吴剑锋许铭张毅朱运涛何平华
Owner HUAWEI TECH CO LTD
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