Power supply method of indoor distribution system by use of antenna feeder and system

An indoor distribution system and antenna feeder technology, applied in electromagnetic wave systems, electrical components, circuit devices, etc., can solve the problems of troublesome power supply and high maintenance costs, reduce construction difficulty and cost, and overcome the differences between active and passive distribution systems. The effect of the disadvantage

Active Publication Date: 2013-10-30
中国移动通信集团甘肃有限公司 +2
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Since these devices are installed in the building, such as the ceiling, the power supply is very troublesome and the maintenance cost is too high

Method used

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  • Power supply method of indoor distribution system by use of antenna feeder and system
  • Power supply method of indoor distribution system by use of antenna feeder and system
  • Power supply method of indoor distribution system by use of antenna feeder and system

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Embodiment Construction

[0024] Preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0025] The main working principle of the present invention is: while satisfying the existing wireless signal transmission, different carrier anti-modulation techniques are used to pass the DC power through the signal source (RF) and DC power (DC) combiner, the signal source (RF) and the DC The power supply (DC) primary power divider and other equipment feed the DC power to the antenna feeder, and then use the signal source (RF) and DC power (DC) secondary power divider, signal source (RF) and DC power (DC) splitter The equipment extracts the DC power from the RF antenna feeder cable to supply power to the terminal equipment of the indoor distribution system, thereby solving the problem of remote transmission and power supply of equipment such as the RRU dry amplifier repeater station.

[0026] In order to facilitate a more intuitive understanding of th...

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PUM

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Abstract

The invention relates to a power supply method of an indoor distribution system by use of an antenna feeder and a system. According to the invention, a wireless signal and a DC power signal are modulated and combined through a splitter, a combiner and other devices; transmission is then carried out through an original antenna feeder of the indoor distribution system; and separation and reduction of signals are carried out ultimately via a separator, a gain module and other devices. Therefore, the purpose of DC power supply transmission by use of the antenna feeder is achieved.

Description

technical field [0001] The invention relates to a method and a system for supplying power to an indoor distribution system using an antenna feeder in a wireless communication system, in particular to a method and a device for using an antenna feeder to supply power to a wireless signal transceiving device of an indoor distribution system. Background technique [0002] In order to meet people's growing demand for wireless communication signals in buildings, a Distributed Antenna System (DAS), that is, an indoor distribution system, has emerged. DAS uses fiber optic cable technology to actively distribute signals to small active antennas within buildings. This system requires a base station in the building, but allows signals to be transmitted more efficiently and reliably from various points in the building. [0003] In order to supply power to the terminal equipment of the distributed antenna system, the remote power supply equipment is required to provide the DC power requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/52H02J17/00H02J50/20
Inventor 包静毛松苗巩欣
Owner 中国移动通信集团甘肃有限公司
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