Remote signal processing method and remote unit used in remote optical fiber type wireless distribution systems

Abstract

The invention relates to a remote signal processing method and a remote unit used in remote optical fiber type wireless distribution systems. The remote signal processing method comprises a downlink signal processing procedure and an uplink signal processing procedure. The downlink signal processing procedure includes receiving downlink digital signals, separating downlink digital signals, converting and amplifying the separated downlink digital signals and emitting the amplified downlink digital signals after combination; and the uplink signal processing procedure includes receiving uplink signals with different frequencies, separating the uplink signals with different frequencies, converting and amplifying the separated uplink signals, combining uplink digital intermediate frequency signals and sending the combined uplink digital intermediate frequency signals to all systems. The remote signal processing method and the remote unit can simultaneously support a plurality of standard wireless communication systems, and problems of overlay network repeated construction of operators and interference among networks are effectively solved.

Description

[0001] Technical field [0002] The present invention relates to the field of communication technology, and more specifically, to a remote signal processing method and remote machine used in a remote fiber optic wireless distribution system. [0003] Background technique [0004] After years of rapid development in China’s mobile communication network, the three major operators have already invested in Code Division Multiple Access (CDMA), Global System for Mobile Communications (GSM), and distributed control systems. (Distributed Control System, DCS), CDMA (Code Division Multiple Access 2000), Wideband Code Division Multiple Access (WCDMA), Time Division-Synchronous Code Division Multiple Access (TD- SCDMA) and other 2G and 3G networks, and 4G networks including multiple LTE (Long Term Evolution) standards will also be put into commercial use in the future. With the continuous development of mobile communication networks, the application of traditional single-system coverage eq...

AI Technical Summary

Problems solved by technology

[0005] However, most of the remote power units of optical fiber remote wireless coverage equipment widely used in various forms of coverage networks are single-system or dual-system equipment, and can only support one or two different network standards at most. To achieve simultaneous coverage of multiple network wireless signals, the only way to combine multiple devices of different standards at the output end is by means of a multi-system combining platform (Point of Interest, POI). However, due to the complex internal structure of POI and the components Many, large volume, high insertion loss, etc., will still bring some problems in practical applications

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