Optical fiber and wireless hybrid access system and hybrid access method based on ftth network

Abstract

Disclosed are an FTTH network based optical fiber, and a wireless hybrid access system and hybrid access method. The present invention relates to the field of optical fiber access. The hybrid access system comprises a GPON central office OLT device and an optical wiring unit, the central office OLT device is connected to the optical wiring unit through an optical fiber link, the optical fiber link transfers both a digital baseband signal and an analog radio signal, and the GPON central office OLT device comprises 16 slots, used for inserting a PON interface disc and a central office light carrier radio frequency unit. When N radio access channels exist in one optical fiber link direction, and 1≤N≤7, the central office OLT device uses N central office light carrier radio frequency units, of which one serves as a primary central office light carrier radio frequency unit, and the other N-1 serve as cascade central office light carrier radio frequency units. The present invention can multiplex an optical fiber resource of a PON, simplify design of a remote radio frequency module, decrease the volume, and reduce power consumption and costs; with transfer of a wireless relay, wireless access is integrated into an FTTH network.

Description

Technical field [0001] The invention relates to the field of optical fiber access, in particular to an optical fiber and wireless hybrid access system and a hybrid access method based on an FTTH (Fiber To The Home) network. Background technique [0002] Fiber access from FTTC (Fiber To The Curb, fiber to the roadside) to FTTB (Fiber To The Building, fiber to the building), and then to FTTH (Fiber To The Home, fiber to the home), constantly approaching the user premises. FTTH has basically become the preferred access method for new communities. This access method, which is given as the ultimate solution, not only inherits the characteristics of large optical fiber transmission communication capacity, low loss, and strong anti-electromagnetic interference capability, but also because of its full optical link Passive components are used in the roads, and they are simple to deploy and easy to maintain. However, this kind of access method still has some coverage blind spots for mount...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology, and to provide a fiber and wireless hybrid access system and hybrid access method based on FTTH network, which can not only reuse the fiber resources in the passive optical network, but also simplify remote The design of the end radio frequency module reduces the volume of the remote radio frequency module, reduces the power consumption of the remote radio frequency module, greatly reduces the construction cost of the operator, and creates conditions for the deployment of a large number of pico base stations close to users, and on this basis Through microwave relay transmission, it solves the problem of access blind spots of optical fiber access in areas with complex terrain such as mountains and lakes, as well as places where existing important infrastructures cause difficulties in optical fiber deployment.

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