Optical fiber distribution system and method

Abstract

The invention discloses an optical fiber distribution system. The optical fiber distribution system comprises a plurality of access units, a light branching / combining device connected with each access unit, at least one expansion unit connected with the light branching / combining device, and at least one far-end unit which is connected with the expansion units, wherein the access units respectively support a plurality of communication standards of different service providers; in a down link, the access units respectively add corresponding communication standard labels to received radiofrequency signals and send the radiofrequency signals to the light branching / combining device through an optical fiber; the light branching / combining device combines the received multi-path optical signals into one optical signal and then divides the optical signal into multi-path identical optical signals, and the multi-path identical optical signals are respectively send to each corresponding expansion unit; the expansion units respectively carry out data processing on the received optical signals and send the optical signals to each corresponding far-end unit through optical fibers; and the far-end units respectively process the received optical signals and convert the optical signals into radiofrequency signals of the corresponding communication standards, thereby enabling the radiofrequency signals to be sent to users.

Description

technical field [0001] The invention relates to the field of electronic equipment, in particular to an optical fiber distribution system and method for realizing multi-channel access of different address information sources. Background technique [0002] After years of long-term development in China's communication industry, a situation of 2G / 3G / 4G coexistence has gradually formed. Mobile communication signal transmission is transmitted through a certain frequency, and the frequencies and network standards owned by the three major operators are not the same. At present The formats already in use in the market are: [0003] China Mobile: GSM800, GSM1800, TD-SCDMA, TD-LTE; [0004] China Unicom: GSM800, GSM1800, WCDMA, TD-LTE, FDD-LTE; [0005] China Telecom: CDMA, CDMA2000, TD-LTE, FDD-LTE. [0006] The above does not include the excessive standards produced by various generations of communication technologies during the speech process. It is not difficult to see that ther...

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Problems solved by technology

[0021] The purpose of the embodiments of the present invention is to provide an optical fiber distribution system and method, which can effectively solve the problem of repeated investment and repeated construction when the multi-service optical fiber distribution system expands the communication system and covers the entire network in the future

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