Radio remote unit of electrically adjustable antenna and electrically adjustable antenna integrating radio remote unit

A technology of radio frequency remote equipment and ESC antenna, applied in electrical components, optical fiber radio, radio relay system, etc., can solve the problems of high cost of control devices, reduced receiving sensitivity, large signal loss, etc., and meet the requirements of reducing power capacity , The effect of improving the receiving sensitivity and reducing the hardware cost

Inactive Publication Date: 2010-05-19
TONGYU COMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned traditional working mode has the following disadvantages: First, as the new generation of mobile communication systems adopts higher frequencies, the loss of radio frequency cables will become very large, and the cost of cables is high, and installation is difficult; second, with the mobile With the continuous development of communication networks, the number density of base stations will gradually increase, and the site selection of base stations will also face greater difficulties. The installation point not only needs to be suitable for the outdoor environment where the antenna is installed, but also needs to have a place suitable for indoor equipment installation, and the antenna and indoor The equipment should not be too far apart; finally, the cost of transmission, drive and corresponding control devices to realize the function of electric adjustment is high and the reliability is low
The above-mentioned technical s

Method used

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  • Radio remote unit of electrically adjustable antenna and electrically adjustable antenna integrating radio remote unit
  • Radio remote unit of electrically adjustable antenna and electrically adjustable antenna integrating radio remote unit
  • Radio remote unit of electrically adjustable antenna and electrically adjustable antenna integrating radio remote unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Such as image 3 , Figure 4 , Figure 5 As shown, the remote radio equipment RRU of the electronically adjustable antenna of the present invention includes a physical interface circuit, an intermediate frequency processing circuit, an A / D and D / A conversion circuit, a frequency conversion circuit, a synthesis / distribution network, a controllable phase shifter, and a transceiver module, The downlink signal passes through the physical interface circuit, the intermediate frequency processing circuit, the A / D and D / A conversion circuit, the frequency conversion circuit, the synthesis / distribution network, the controllable phase shifter and the transceiver module in turn, and the uplink signal sequentially passes through the transceiver module and controllable phase shift Converter, synthesis / distribution network, frequency conversion circuit, A / D and D / A conversion circuit, intermediate frequency processing circuit and physical interface circuit. The physical inte...

Embodiment 2

[0036] Example 2: Such as Image 6 As shown, compared with Embodiment 1, the position of the controllable phase shifter and the transceiver module in Embodiment 2 are reversed. At this time, the transceiver channel can share a phase shifter, which not only saves the hardware cost, but also does not require uplink and downlink RF channels. Control the synchronization control of the phase shifter. However, compared with Example 1, it also has the following shortcomings:

[0037] 1. For the uplink, since the controllable phase shifter is located before the low-noise amplifier, compared to the first embodiment, the uplink receiving sensitivity will be slightly reduced;

[0038] 2. For the downlink, since the controllable phase shifter is located behind the power amplifier, the power capacity requirement of the controllable phase shifter is increased, which brings certain restrictions to the selection of the controllable phase shifter.

[0039] The design of the rest of the embodiment 2...

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Abstract

The invention relates to a radio remote unit of an electrically adjustable antenna, which is characterized in that the radio remote unit comprises a physical interface circuit, an intermediate frequency processing circuit, an A/D and D/A conversion circuit, a frequency conversion circuit, a synthesis/distribution network, a controllable phase shifter and a transceiving module, downlink signals sequentially pass through the physical interface circuit, the intermediate frequency processing circuit, the A/D and D/A conversion circuit, the frequency conversion circuit, the synthesis/distribution network, the controllable phase shifter an the transceiving module, and uplink signals sequentially pass through the transceiving module, the controllable phase shifter, the synthesis/distribution network, the frequency conversion circuit, the A/D and D/A conversion circuit, the intermediate frequency processing circuit and the physical interface circuit. The radio remote unit has the advantages of compact structure, simple installation, low power consumption and high performance. The invention further relates to the electrically adjustable antenna integrating the radio remote unit, which comprises the radio remote unit RRU and an antenna part and is characterized in that all or part of the functions of the radio remote unit RRU are integrated in the electrically adjustable antenna. The electrically adjustable antenna integrates all or part of the functions of the RRU, thereby leading the overall performance to be more excellent and leading the installation to be simpler.

Description

(1) Technical field: [0001] The invention relates to a radio frequency remote device of an electric adjustable antenna and an electric adjustable antenna integrated with the radio frequency remote device. (2) Background technology: [0002] The front end of the wireless access network in the existing mobile communication system is composed of base station equipment and antenna feeding parts. The base station equipment is generally installed indoors, and the antenna is installed on the top of the tower. figure 1 As shown, they are connected by a long RF coaxial cable. At the same time, in order to improve network communication quality during network operation, it is necessary to conveniently adjust the coverage of the base station, so a large number of electrically adjustable antennas are used. The principle of the electronically adjustable antenna is to drive the phase shifter to move and change the phase of each signal by controlling a drive motor, so a set of transmission mecha...

Claims

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Application Information

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IPC IPC(8): H04B7/15H04B10/12H04B10/2575
CPCY02D30/70
Inventor 吴中林伍裕江庄文东彭蛟
Owner TONGYU COMM INC
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