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Method, system and apparatus for managing optical extended xDSL signal transmission system

A technology of signal transmission system and optical expansion, applied in transmission system, electromagnetic wave transmission system, time-division multiplexing selection device, etc., can solve the problem of lack of effective management of ONU end

Inactive Publication Date: 2007-12-05
HUAWEI TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the embodiment of the present invention is to provide a method, system and device for managing the optical extension xDSL signal transmission system, aiming to solve the problem of lack of effective management of the ONU end in the optical extension xDSL signal transmission system existing in the prior art

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  • Method, system and apparatus for managing optical extended xDSL signal transmission system
  • Method, system and apparatus for managing optical extended xDSL signal transmission system
  • Method, system and apparatus for managing optical extended xDSL signal transmission system

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Embodiment Construction

[0035] The technical solution provided by the embodiment of the present invention is to modulate the management and control information of the entire system, multiplex it with the xDSL analog signal carrying service data, and then carry out the transmission between CO and ONU, so as to realize the interaction of management and control information between CO and ONU , so as to complete the management of the ONU.

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] The functional block diagram of the system embodiment of the present invention is shown in Figure 3, including CO100, ONU200 and CPE301, wherein, between CO100 ...

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Abstract

The method includes following steps: central office (CO) multiplexes modulated management control information (MCI) in use for managing optical network unit (ONU) and signal of digital subscriber line (DSL), and transfers the multiplexed signal to ONU; ONU demodulates out MCI, and carries out management based on MCI. Through interaction between CO and ONU, the technical scheme accomplishes managing ONU. Thus, CO end can carry out remote managing and controlling ONU end. Moreover, through management channel to obtain data of line parameters of each segment of transmission line, the technical scheme provides effective data information for CO so as to realize configuration of optimal line parameters of entire transmission system, and obtain best transmission performance.

Description

technical field [0001] The invention belongs to the technical field of DSL (Digital Subscriber Line), in particular to an optical extension xDSL signal transmission system (DSLoF system). Background technique [0002] xDSL is a high-speed data transmission technology that utilizes a telephone twisted pair (ie, Unshielded Twist Pair, UTP) for signal transmission. In addition to DSL with baseband transmission such as IDSL (ISDN Digital Subscriber Line) and SHDSL (Single Pair High Bit Rate Digital Subscriber Line), xDSL with passband transmission uses frequency division multiplexing technology to make xDSL and POTS (traditional telephone service) coexist in the same For twisted pair lines, xDSL occupies the high frequency band, POTS occupies the baseband part below 4KHz, and the passband transmission of xDSL is realized by DMT (Discrete Multi-Tone Modulation) technology. [0003] The reference model of the xDSL system is shown in Figure 1. The POTS signal transmitted on the tw...

Claims

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Application Information

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IPC IPC(8): H04M3/22H04B10/02H04Q11/04
Inventor 江涛欧鹏喻凡易永江张国庆
Owner HUAWEI TECH CO LTD