Coaxial feeder power supply method based on wireless indoor distribution system and passive indoor coverage system

Abstract

The invention discloses a coaxial feeder power supply method based on a wireless indoor distribution system, which comprises the following steps: S1, combining a radio frequency signal containing a single path or multiple paths with a direct current signal, and accessing an indoor distribution system through a coaxial feeder; and S2, separating the radio-frequency signal from the direct-current signal in the indoor distribution system, so that the direct-current signal is fed into a power receiving end for power supply. The invention further provides a passive indoor coverage system based on the method. After the scheme is adopted, the feed-in end only needs to consider the total power supply power and overcurrent protection, so that the difficulty of obtaining power supply by an active antenna (or a terminal needing power supply) in the whole system is reduced, the construction and transformation cost is reduced, property coordination is avoided, and the cost of a coverage scheme is reduced.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a coaxial feeder power supply method based on a wireless indoor distribution system and a passive indoor coverage system. Background technique [0002] The wireless indoor distribution system is a successful solution for indoor user groups to improve the mobile communication environment in buildings; it uses the indoor antenna distribution system to evenly distribute the signals of mobile base stations in every corner of the room, so as to ensure that the indoor area has Ideal signal coverage. [0003] The construction of the indoor coverage system can comprehensively improve the call quality in the building, increase the connection rate of mobile phones, and open up high-quality indoor mobile communication areas. Existing coaxial cables for communication, including coaxial cables for cable television and coaxial cables for mobile communications, have the property of trans...

AI Technical Summary

Problems solved by technology

[0014] 1. In the existing scheme, a power divider is used to feed or take power, which increases the loss of the signal;

[0015] 2. The original transmitted signal needs to be modulated and demodulated at the antenna, which increases the complexity and cost;

[0016] 3. The power supply needs to be processed at the input end and the output end, which increases the difficulty of implementation, and will introduce interference signals, and the number of modules required to realize functions increases, which increases the cost of the solution;

[0017] 4. In the transmission process, only the use of power dividers is supported, and it is difficult for passive couplers to realize DC transmission

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