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Broadband access method and system based on coaxial distribution network

A technology of coaxial distribution and broadband, applied in the direction of data exchange and cable transmission adaptation through path configuration, it can solve problems such as frequency band sharing, and achieve the effects of system stability and reliability, QoS guarantee, and full utilization of network bandwidth.

Inactive Publication Date: 2015-07-08
上海中兴思秸通讯有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0010] In view of this, the main purpose of the present invention is to provide a system based on a broadband access method of a coaxial distribution network, which can solve the problem of frequency band sharing, and better utilize the cable TV network to provide two-way data services

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  • Broadband access method and system based on coaxial distribution network
  • Broadband access method and system based on coaxial distribution network
  • Broadband access method and system based on coaxial distribution network

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Embodiment Construction

[0048] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0049] figure 1 It is a schematic flow chart of a method for broadband access based on a coaxial distribution network of the present invention, as figure 1 As shown, the method includes:

[0050] Step 101, in the coaxial distribution network, after the optical network unit (Optical Network Unit, ONU) receives the aggregation service sent by the optical line terminal (Optical Line Terminal, OLT), it demodulates the Ethernet data signal and the broadcast TV signal , sent to the coaxial line terminal equipment (Coaxial LineTerminal, CLT);

[0051] Specifically, the converged services include: broadcast television services and broadband data services, including: Interactive Personality TV (Interactive Personality TV, IPTV) services, High Definition Television (High Definition Television, HDTV) services, interactive TV ...

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Abstract

The invention discloses a broadband access method based on a coaxial distribution network. The method comprises the following steps: in the coaxial distribution network, an optical network unit (ONU) receives a convergence service transmitted by an optical line terminal (OLT), demodulates an Ethernet data signal and a broadcasting television signal and transmits the signals to a coaxial line terminal (CLT); and the CLT encapsulates the Ethernet data signal into an IEEE802.3ah Ethernet data format, performs orthogonal frequency division multiplexing (OFDM) modulation, mixes the Ethernet data signal with the broadcasting television signal and transmits a mixed signal to a coaxial network unit (CNU). The invention further discloses a broadband access system based on the coaxial distribution network. By adopting the method and the system, the problem of frequency band sharing can be solved and a bidirectional data service is provided by better utilizing a cable television network.

Description

technical field [0001] The present invention relates to the technical field of broadband access network, in particular to a broadband access method and system based on coaxial distribution network. Background technique [0002] As we all know, the main purpose of China's Next Generation Broadcasting Network (NGB) is to use TV digitization as an entry point to build a high-speed broadband broadcasting information infrastructure platform, expand the service field of broadcasting and TV, and turn ordinary TV receiving terminals into home multimedia information terminals. , in the process of advancing the "triple network integration" to give full play to the important role of the cable TV network as the national basic information network. Therefore, the most fundamental thing for NGB is to realize broadband bidirectional transmission in the basic network. [0003] At present, there are two main types of two-way broadband access technologies based on cable television networks: o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04N7/10
Inventor 孙畅李立李卫东王春华
Owner 上海中兴思秸通讯有限公司
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