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Signal transmission method and apparatus

A signal transmission and signal technology, applied in the field of optical communication, can solve the problems of reliability of FEC error correction information, manual intervention of main transmission channel failure recovery, and inability to guarantee the reliability of FEC error correction information transmission.

Active Publication Date: 2017-10-31
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during in-band transmission, the reliability of FEC error correction information transmission cannot be guaranteed under high bit error rate channels. When the end of the channel is reached, unreliable FEC error correction information is used to determine the optimal channel, which may easily cause misjudgment. On the contrary, it reduces the reliability of the protection network
In out-of-band transmission, although the dedicated channel is used to transmit the FEC error correction information of each node, the transmission rate is not high, but the channel itself still has bit errors, and the FEC error correction information transmitted to the end of the channel still has reliability problems.
Moreover, since a single device on a transmission node has no redundant channels, the fault recovery of the main transmission channel often requires human intervention to switch off a single device on the node as a whole, which takes a long time to repair the fault and increases network operating costs.

Method used

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  • Signal transmission method and apparatus
  • Signal transmission method and apparatus
  • Signal transmission method and apparatus

Examples

Experimental program
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Embodiment 1

[0062] An embodiment of the present invention provides a signal transmission method, such as figure 1 As shown, the method may include:

[0063] Step 101, the signal transmission device receives N signals transmitted by the signal input channel.

[0064] Specifically, the signal transmission method provided by the embodiment of the present invention is applied to a signal transmission device, such as figure 2 As shown, the signal transmission device may include: N receiving channels for connecting to N external optical signal input channels, and receiving N optical signals transmitted by the external N optical signal input channels.

[0065] Step 102, the signal transmission device determines a channel failure indication of each of the N signals.

[0066] Wherein, the signal loss alarm, framing alarm, maintenance signal indication, and FEC error correction alarm of each receiving channel are combined into a channel failure indication and sent to the processor of the signal ...

Embodiment 2

[0082] An embodiment of the present invention provides a signal transmission method, such as Figure 4 As shown, the method may include:

[0083] Step 201, the signal transmission device receives N signals transmitted by the signal input channel.

[0084] The signal transmission method provided by the embodiment of the present invention is applied to a signal transmission device, such as figure 2 As shown, the signal transmission device includes: N receiving channels, which are used to connect to N external optical signal input channels, and can transmit M signal sources at the same time. In the receiving direction, the input N optical signal transmission channels transmit M The optical signal source is selected by the processor according to the transmission channel information occupied by each signal source, from selecting M signals to recovering M electrical signals.

[0085] Step 202. The signal transmission device determines a channel failure indication of each of the N...

Embodiment 3

[0102] An embodiment of the present invention provides a signal transmission device 1, such as Figure 7 As shown, the device 1 includes: N receiving units 10, a determining unit 11, and a first selecting unit 12, wherein,

[0103] The N receiving units 10 are used to receive N signals transmitted by signal input channels;

[0104] The determining unit 11 is configured to determine a channel failure indication of each of the N signals;

[0105] The first selection unit 12 is configured to select M signals from the N signals according to the channel failure indication of each signal, and is also configured to output the M signals.

[0106] Further, as Figure 8 As shown, the determination unit 11 includes: a first photoelectric conversion module 110, a first framing module 111, a decoding module 112, an overhead extraction module 113, and a generation module 114, wherein,

[0107] The first photoelectric conversion module 110 is configured to perform photoelectric conversion...

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Abstract

The embodiment of the invention discloses a signal transmission method. The method comprises the following steps: receiving N signals transmitted by a signal input channel; determining a channel failure indicator of each signal among the N signals; selecting M signals from the N signals according to the channel failure indicator of each signal; and outputting the M signals. The embodiment of the invention further discloses a signal transmission apparatus.

Description

technical field [0001] The present invention relates to signal transmission technology in the field of optical communication, in particular to a signal transmission method and device. Background technique [0002] With the continuous development of communication technology, the demand for bandwidth in the bearer network market is increasing rapidly, and the transmission rate of optical channel transport unit (OTU, optical channel transport uint) information has gradually developed to 100Gbit / s and higher. A high transmission rate means that the bit error rate of the channel increases, and the transmission reliability of the communication network decreases. In order to reduce the failure rate of the network, the communication network will add redundant transmission channels. When a channel has a problem, it can be switched to another channel without failure for transmission. [0003] In the prior art, the mechanism for switching the transmission channel is mainly based on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
Inventor 陈中盟
Owner SANECHIPS TECH CO LTD