Control method and device

Abstract

The embodiment of the invention discloses a control method, which is applied to an ONU (Optical Network Unit). The method comprises the following steps that: a data detection module receives an encoded first data signal from a physical encoding module and a delayed first identification signal from a signal delay module, wherein the first identification signal is used for representing a window state in which the first data signal is kept, and a phase of the encoded first data signal is consistent with a phase of the delayed first identification signal; the data detection module detects the encoded first data signal and the delayed first identification signal; when the encoded first data signal is a non-idle code word, or the delayed first identification signal indicates that the encoded first data signal is in a window period, the data detection module controls an optical module to be enabled; otherwise, the data detection module controls the optical module to be disabled. The embodiment of the invention discloses a control device at the same time.

Description

technical field [0001] The invention relates to the field of data detection in an Ethernet Passive Optical Network (EPON, Ethernet Passive Optical Network), in particular to a control method and device. Background technique [0002] At present, EPON is widely used due to the advantages of low cost, high bandwidth, strong scalability, compatibility with existing Ethernet, and convenient management. In the prior art, when performing data detection in EPON, in order to avoid multiple optical network units (ONU, Optical Network Unit) luminous collision, in the 802.3 protocol, the method of opening and closing the optical module of each ONU is specified. , First Input First Output) cache to store the code groups to be sent, wherein the depth of the FIFO cache should ensure that the delay introduced by the FIFO cache and the combination of other delays of the physical medium attachment sublayer (PMA, Physical Medium Attachment) are sufficient The optical module is turned on and s...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the embodiment of the present invention expects to provide a control method and device to solve the technical problem of high packet loss rate in the data output of the ONU in the state that the optical module is turned off in the prior art, and flexibly control the The opening and closing of the optical module reduces the packet loss rate in the data output of the optical module in the closed state

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