Method, device and system for channel training

A channel and training frame technology, applied in the field of channel training, can solve the problem of ONU not being able to register and go online in time, and achieve the effect of improving receiving sensitivity, reducing power cost, and reducing receiving bit error rate

Active Publication Date: 2020-06-02
HUAWEI TECH CO LTD
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Problems solved by technology

[0004] Embodiments of the present invention provide a method, device and system for channel training

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  • Method, device and system for channel training
  • Method, device and system for channel training
  • Method, device and system for channel training

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Example Embodiment

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0039] In order to facilitate understanding, the network applied in the embodiment of the present invention is first described. The embodiment of the present invention is to solve the problem of high bit error rate of the optical signal received by the ONU in the 100G EPON, and high power cost. The function division is similar to the existing EPON network function division. The network layered model of EPON is as figure 2 Shown.

[0040] ...

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Abstract

The invention discloses a channel training method, device and system, relates to the technical field of communication, and can solve the problem that a newly added ONU in a PON cannot register and go online in time. In the embodiment of the present invention, by determining the first moment for triggering channel training, from the first moment, stop sending normal data, generate a training frame, and then send the training frame to all ONUs in the PON, so that the target ONU can train according to the training frame. An adaptive equalizer, wherein the target ONU is at least one of all ONUs in the PON. The solution provided by the embodiment of the present invention is suitable for training the equalizer of the ONU.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a channel training method, device and system. Background technique [0002] PON (Passive Optical Network, Passive Optical Network) technology enables only optical fibers and optical splitters between the central office OLT (Optical Line Terminal, Optical Line Terminal) of the access network and the user ONU (Optical Network Unit, Optical Network Unit) It can be connected with passive devices such as switches, without the need for a machine room and power supply. Such as figure 1 As shown, the PON is composed of an OLT and multiple ONUs, where the feeder section between the OLT and the ONU refers to the backbone optical fiber, the passive optical splitter (Splitter) is used to fuse multiple optical fibers together, and the attenuation section (Drop) refers to the branch fiber. During the PON working process, when performing downlink data transmission, the ...

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Application Information

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IPC IPC(8): H04Q11/00
CPCH04Q11/0067H04Q2011/0064H04Q2011/0084H04Q2011/0088H04B10/27H04J14/08H04L25/03019
Inventor 高建河高波张红广付生猛
Owner HUAWEI TECH CO LTD
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