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Multi-system access platform

A multi-system and platform technology, applied in transmission systems, radio relay systems, communication between multiple stations, etc., can solve the problems of doubling the cost of network construction and increasing the complexity of engineering wiring, saving system costs and reducing The effect of sophistication

Inactive Publication Date: 2008-12-03
COMBA TELECOM SYST CHINA LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] In the prior art, the multi-system access platform can only complete the function of simplex transmission. To realize duplex transmission and reception of signals, at least two sets of access platforms need to cooperate with each other.
In a large-scale network coverage project, the application of access nodes is very common. Using this method will undoubtedly double the cost of network construction and increase the complexity of project wiring.

Method used

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  • Multi-system access platform

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0028] see figure 1 , the multi-system access platform in the preferred embodiment of the present invention has three connection ports P1, P2, and P3 close to the base station, which are respectively used to process three-way signals, one of which is GSM800 frequency band, and the other two are GSM1900 frequency bands The signal; has uplink, downlink and direct link; also has the connection ports RX1 to RX4 of the four antenna feeders fed into the uplink, and the connection port TX1 of the four antenna feeders output by the downlink to TX4, and a pass-through port COM that is a pass-through link.

[0029] When the signal is downlink, the three signals input by the three connection ports P1, P2, and P3 of the base station are further processed independently through the direct link and the downlink:

[0030] In the direct link, at first the signals of the two...

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Abstract

The invention discloses a multisystem access platform, which includes: a diplexer unit that can independently make duplex separation on at least two channels of signals with different frequency bands so that the up signal and the down signal of each frequency band can be independent to each other; a down subcircuit unit that can subcircuit the down signal of each frequency band that is separated by the diplexer unit into a down composite signal and output the final signal; a down distribution unit that distributes the down composite signal from the down subcircuit unit into signals with even number of channels and then output the signals ; an up synthesis unit that synthesizes at least two channels of up composite signals input from different transmission paths; an up distribution unit that distributes the up composite signal and feeds the distributed signals in the diplexer unit. With the up link, down processing link and the direct connection link together, the multisystem access platform provided by the invention can not only transmit the down signal, up signal simultaneously but also can make simplex transmission on one of the up signal and down signal.

Description

【Technical field】 [0001] The invention relates to a networking device of a mobile communication system, in particular to a multi-system access platform. 【technical background】 [0002] The multi-system access platform (POI, Points Of Interface) is one of the central devices of large-scale network coverage projects. It uses frequency combiners and bridge combiners to combine the system uplink signals and downlink signals of various services. To make full use of resources and save investment. [0003] Because of this function of the multi-system access platform, it can be used as an intermediate connection device among base stations, repeaters and antenna feeder systems, and thus is widely used in coverage engineering. [0004] There are three ways of signal transmission: [0005] a. Downlink signal simplex mode transmit signal [0006] b. The uplink signal simplex mode accepts the signal [0007] c. After the uplink signal and the downlink signal are combined, the duplex ...

Claims

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Application Information

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IPC IPC(8): H04B7/14H04B7/26H04B1/52H04Q7/30
Inventor 张建刚
Owner COMBA TELECOM SYST CHINA LTD
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