Ethernet passive electric network

Abstract

The invention relates to the technical field of optical fiber-coaxial cable hybrid network access. Aiming at the limitations of the existing EoC technology application and combining with EPON technology application, the invention provides a multi-point control protocol based Ethernet passive electrical network (Ethernet Passive Electronic Network-EPEN), which comprises head end equipment connected with the FTTx optical node of an Ethernet passive optical network, terminal equipment (ENU) connected with user units and a passive electric distribution network (EDN), wherein the EDN consists of coaxial cables and one or more passive power splitters and provides electric channel connection between the ELT and the ENU, and a physical layer adopts the orthogonal frequency division multiplexing technology (OFDM); and a data link layer adopts the multi-point control protocol (MPCP), so that the two-way Ethernet data services carry in a point-to-multi-point coaxial access network. The invention can effectively realize the two-way transformation of an HFC network to which the EPON and the EPEN access in a compositing way, and has improved technology advancement, user access bandwidth and supported maximum number of users compared with other EoC technical standards.

Description

technical field [0001] The invention relates to the technical field of optical fiber-coaxial cable hybrid network access. Background technique [0002] my country is actively promoting "the construction of information infrastructure such as broadband communication networks, digital TV networks, and next-generation Internet, promoting the 'integration of three networks', and improving the information security system." The State Administration of Radio, Film and Television listed "digitalization" and "two-way transformation" as The key tasks of the "Eleventh Five-Year Plan": "Promote the overall transformation of cable TV digitalization, and promote the evolution of cable TV network to the next generation network". At present, the digital transformation of the radio and television network is facing competition from various technologies such as DVB-C, IPTV, DMB-T, and CMMB. The two-way transformation and the establishment of a manageable, maintainable, and operable multi-service...

AI Technical Summary

Problems solved by technology

There are many technical solutions related to EoC, except for passive baseband EoC, most of them are based on modulation technology, such as Moca, HomePNA, Homeplug AV, down-frequency WLAN and other technologies, but these technical standards basically belong to the category of home network, based on CSMA / CA The original half-duplex MAC protocol is not very suitable for the transformation of radio and television two-way networks and broadband access applications

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