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Tower mounted amplifier

A tower-mounted amplifier and amplifier technology, applied in the direction of amplifiers, high-frequency amplifiers, radio frequency amplifiers, etc., can solve the problems of unfavorable use of tower-mounted amplifiers, increase in size and cost, and achieve the effects of perfect functions, lighten the burden, and reduce the number

Active Publication Date: 2017-02-15
XIAN RUIXIN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the more frequency bands to be processed, the more filters are installed in the tower mounted amplifier. As the number of filters increases, the volume and cost of the tower mounted amplifier will increase accordingly, which is obviously not conducive to the tower mounted amplifier. usage of

Method used

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the embodiments of the present invention.

[0036] The techniques described herein can be used in various communication systems such as 3G, 4G or next generation communication systems such as Global System for Mobile communications (Global System for Mobile communications, GSM), Code Division Multiple Access (Code Division Multiple Access, CDMA) systems, Time Division Mul...

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Abstract

The invention provides a tower mounted amplifier used for supporting a plurality of frequency bands through fewer filters. The tower mounted amplifier comprises a first port, which is connected with an antenna of a base station and used to be in signal interaction with the antenna; a first band-pass filter, wherein an input end of the first band-pass filter is connected with the first port and used for separating from uplink signals received by the first port and obtaining uplink signals of at least two frequency bands; a first amplifier, wherein an input end of the first amplifier is connected with an output end of the first band-pass filter, and used for amplifying the uplink signals of at least two frequency bands outputted by the first band-pass filter; a second band-pass filter, wherein an input end of the second band-pass filter is connected with an output end of the first amplifier, and used for receiving the amplified uplink signals of at least two frequency bands which are outputted by the first amplifier; and a second port, which is connected with an output end of the second band-pass filter and the base station, and used for outputting the amplified uplink signals of at least two frequency bands which are outputted by the second band-pass filter to the base station.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a tower top amplifier. Background technique [0002] Tower Mounted Amplifier (Tower Mounted Amplifier, TMA) is installed on the top of the transmission tower. It is an amplifier immediately behind the antenna. Before the uplink signal received by the antenna enters the feeder, the tower mount amplifier can amplify the received uplink signal to improve the uplink signal. The signal quality of the road can be improved, the call reliability and voice quality can be improved, and the coverage area of ​​the cell can be expanded at the same time. [0003] The current tower-mounted amplifier needs to be equipped with corresponding filters for each frequency band. For example, a dual-frequency tower-mounted amplifier needs to be equipped with double the number of filters, and so on. It can be seen that the more frequency bands to be processed, the more filters are installed in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/155H04B1/00H04W52/52
CPCH04B1/0042H04B1/005H04B7/15535H04W52/52H04B7/15542H03F3/189H03F2200/165H03F2200/171H03F2200/294H03F2200/451H04W88/08
Inventor 龚兰平
Owner XIAN RUIXIN TECH CO LTD
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