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POI multisystem cable combination equipment of repeater

A multi-system and repeater technology, which is applied in radio relay systems and other directions, can solve the problems of POI insertion loss, large equipment volume, and many components, so as to reduce the number and volume of components, small in-band fluctuations, and insertion loss small effect

Inactive Publication Date: 2009-04-08
合肥恒和通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the internal structure of the current POI equipment is relatively complicated, involving many components, the volume of the equipment is large, and the components in the equipment are all passive devices, which will cause the insertion loss of POI

Method used

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  • POI multisystem cable combination equipment of repeater
  • POI multisystem cable combination equipment of repeater
  • POI multisystem cable combination equipment of repeater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] See attached picture.

[0025] A kind of repeater POI multi-system cable combining equipment of the present invention comprises a signal port and a combiner connected thereto, the signal port is connected to the filter 3 or the signal input end of the duplexer 1; the filter 3 or the duplexer 1 The output end of the duplexer 1 is connected to the input end of the signal amplifier, and the filter 3 or the duplexer 1 is integrated with the signal amplifier. The duplexer 1 is connected with two signal amplifiers, and the filter 3 is connected with one signal amplifier. The output terminals of the signal amplifier are respectively connected to the input terminals of the uplink multi-frequency combiner and the downlink multi-frequency combiner; the two signal amplifiers connected to the duplexer 1, one of the output terminals of the signal amplifier is connected to the uplink multi-frequency combiner The input end of the multiplexer is connected, and the output end of the ot...

Embodiment 2

[0028] The output end of the signal amplifier is connected to the input end of a multi-frequency combiner, and the multi-frequency combiner is connected to the antenna port through the bridge 6 . All the other are with embodiment 1.

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PUM

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Abstract

The invention relates to a POI multi-system cable-combining device of a repeater which comprises a signal port and a mixer connected with the signal port; the signal port is connected with the signal input end of a filter or a duplexer; the output end of the filter or the duplexer is connected with the input end of a signal amplifier; the output end of the signal amplifier is connected with the input end of a multi-frequency mixer; the multi-frequency mixer is connected with an antenna port by an electric bridge. Aiming at the defects of the prior art, the invention designs and develops the POI multi-system cable-combining device of a repeater which has the advantages of simple structure, less components and less inserting loss of POI.

Description

technical field [0001] The invention relates to a communication transmission device, in particular to a communication signal multi-system cable combining device. Background technique [0002] my country's existing mobile communication networks include China Mobile's GSM900 / DCS1800, China Unicom's GSM900 / DCS1800 and CDMA800 China Telecom and Netcom's PHS WLAN digital trunking and other communication systems, and WCDMA CDAM2000TD-SCDMA3G systems will be built in succession. Network signals in outdoor places can be covered by their respective base stations, and indoor signals can not be solved by traditional indoor coverage systems. However, problems such as redundant construction brought about by each operator building their own coverage systems are becoming more and more prominent. Aiming at such problems, a solution of multi-system integration platform (POI) is proposed. POI is mainly used in large-scale building municipal facilities that require access to multiple network...

Claims

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Application Information

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IPC IPC(8): H04B7/14
Inventor 胡为民
Owner 合肥恒和通信有限公司
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