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Method and apparatus realizing remote data transmission in passive optical network

A passive optical network and data transmission technology, applied in the field of passive optical networks, can solve problems such as pre-order damage and affecting the receiver.

Inactive Publication Date: 2009-02-11
HUAWEI TECH CO LTD
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  • Abstract
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Problems solved by technology

[0010] This kind of preorder damage caused by using the uplink retiming module to recover the burst mode clock data will affect the subsequent receivers, such as the correct reception of the uplink burst data packet by the OLT
As a result, the use of electrical relay OEO method cannot truly achieve remote data transmission

Method used

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  • Method and apparatus realizing remote data transmission in passive optical network
  • Method and apparatus realizing remote data transmission in passive optical network
  • Method and apparatus realizing remote data transmission in passive optical network

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.

[0028] see Figure 5, is a schematic structural diagram of a device for implementing remote data transmission in PON according to an embodiment of the present invention. The structure includes an O / E amplification and shaping module 521, a downlink retiming module 522, and an E / O module 523 in the downlink direction; O / E amplification and shaping module 511 , multiphase clock module 512 , sampling decision module 513 and E / O module 514 .

[0029] The O / E amplification and shaping module 521 is configured to perform photoelectric conversion, re-amplification and shaping processing on the received downlink PON signal sent by the OLT, and send the processed signal to the downlink retiming module 522 . The signal after the O / E amplification and shapin...

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Abstract

The inventive embodiment discloses a device for achieving remote date transmission in electrical relay manner in a passive optical network. The device comprises an optical / electrical amplification shaping module and an electrical / optical module in the uplink direction, and a multi-phase clock module and a sampling determination module between the optical / electrical amplification shaping module and the electrical / optical module. The inventive embodiment also discloses a method for achieving remote date transmission in electrical relay manner in the passive optical network. The embodiment can achieve remote date transmission in electrical relay manner.

Description

technical field [0001] The present invention relates to the field of Passive Optical Network (PON, Passive Optical Network), in particular to a method and device for realizing remote transmission of data in a passive optical network. Background technique [0002] PON has become one of the mainstream technologies of optical access network due to its low cost, simple maintenance and mature technology. Existing PON standards include Broad Passive Optical Network (BPON, Broad Passive Optical Network), Gigabit Passive Optical Network (GPON, Gigabit Passive Optical Network), and Ethernet Passive Optical Network (EPON, Ethernet Passive Optical Network). see figure 1 , is a structural diagram of the PON network architecture. PON consists of three parts: Optical Line Terminals (OLT, Optical Line Terminals), Optical Distribution Network (ODN, Optical Distribution Network) and multiple Optical Network Units (ONU, Optical Network Unit). The OLT is used in the central office, and the O...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/12H04B10/16H04B10/2575
Inventor 余丽苹邹世敏周建林
Owner HUAWEI TECH CO LTD
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