Optical fiber distribution system and communication method thereof

Abstract

The invention discloses an optical fiber distribution system and a communication method thereof. The system is composed of an access unit, an extension unit and remote units; the access unit couples downlink radio frequency signals of 2G, 3G, LTE and other signal sources into the optical fiber distribution system to be converted into digital signals, and then performs framing, the digital signalsare converted into optical signals via photoelectric conversion, the optical signals are transmitted by an optical fiber to the extension unit or the remote units, and the extension unit forwards thedigital signals sent by the access unit to a plurality of remote units; and each remote unit converts the digital signals sent by the extension unit or the access unit into radio frequency signals toimplement the wireless coverage of 2G, 3G, LTE and other systems, and meanwhile converts the received uplink radio frequency signals into digital signals,and transmits the digital signals to the extension unit or the access unit. The optical fiber distribution system disclosed by the invention has the advantages of simple engineering design, high integration degree, easy implementation, monitoringavailability, good performance, low cost, etc.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an optical fiber distribution system and a communication method thereof. Background technique [0002] As operators' 3G / 4G networks, home broadband, and wireless WLAN are highly improved, the types and quantities of wireless service applications are becoming more and more abundant, and the rapid growth of data throughput has put forward higher requirements for the coverage quality of wireless networks. Users have higher and higher requirements for call quality and data services, requiring mobile networks to be ubiquitous. [0003] At present, outdoor network construction mainly adopts the coverage method of macro base stations. In dense urban areas, low-rise residential areas, urban villages, street shops and other densely built areas are difficult to solve indoor deep coverage due to the obstruction of buildings; indoor network construction mainly adopts radio ...

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Problems solved by technology

[0003] At present, outdoor network construction mainly adopts the coverage method of macro base stations. In dense urban areas, low-rise residential areas, urban villages, street shops and other densely built areas are difficult to solve indoor deep coverage due to the obstruction of buildings; indoor network construction mainly adopts radio frequency-based Cable distribution system, but in residential areas, campuses, hotels, office buildings and other areas, indoor antennas can only be placed in public areas such as corridors and elevator halls due to property coordination problems, and the network quality in room areas is difficult to guarantee

It can be seen that the traditional distribution system can only solve the coverage of public areas, but cannot meet the needs of full coverage, and the cost is high and the performance is poor

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