Signal sending and relaying method and related equipment

A relay device and signal transmission technology, applied in the field of communication, can solve the problems of power consumption, increased decoding delay, large decoding delay, etc., and achieve the effect of reducing delay and power consumption

Active Publication Date: 2019-12-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

FEC will introduce a large decoding delay while compensating for the loss of Signal-Noise Ratio (SNR) caused by channel impairment
Great impact for some latency-sensitive applications
Especially in links with (Clock and Data Recovery, CDR) relays, each additional level of relay requires an FEC decoding, which increases the decoding delay
[0003] In the prior art, the FEC decoding relay scheme needs to perform FEC decoding and re-encoding in the relay device, so additional FEC delay will be introduced in the relay device, and more power consumption will be consumed at the same time

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  • Signal sending and relaying method and related equipment
  • Signal sending and relaying method and related equipment
  • Signal sending and relaying method and related equipment

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Embodiment Construction

[0045] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0046] Before describing the technical solution of the embodiment of the present application, several technical terms in the embodiment of the present application are firstly introduced.

[0047] Bit, short for binary number, is the smallest unit of data in a computer. A bit has a binary value, 0 or 1.

[0048] Forward Error Correction (FEC), also known as a forward error correction code, is a method to increase the reliability of data communication. FEC is a method of using data to transmit redundant information. When an error occurs during transmission, it will allow the receiver to reconstruct the data.

[0049] Rate matching refers to inserting or deleting specific bits or bit blocks on the transmission channel to match the carrying capacity of the physical channel, and to achieve the bit rate required by the transmission format during channel ...

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Abstract

The embodiment of the invention provides a signal transmitting and relaying method and related equipment, and the method comprises the steps that transmitting end equipment carries out the forward error correction (FEC) coding of to-be-transmitted data, generates an FEC data flow of N data channels, and the FEC data flow comprises an FEC data frame and an overhead frame, and N is a positive integer; and sending end equipment sends the FEC data streams of the N channels to a relay device. In the embodiment of the invention, the sending end equipment sends the FEC data flow to the relay device;wherein the FEC data stream comprises FEC data frames and overhead frames; compared with the prior art, FEC data streams sent to the relay equipment by the sending end device only comprise FEC data frames; the relay equipment needs to decode the FEC data frame and then codes the FEC data frame to realize the rate matching of the FEC data stream; according to the method provided by the embodiment of the invention, the rate matching of the FEC data flow can be realized by inserting or deleting the overhead frame by the relay equipment, the delay in the data transmission process can be reduced, and the power consumption of the relay equipment is reduced.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a signal sending and relaying method and related equipment. Background technique [0002] With the continuous increase of the rate of high-speed communication links, various impairment effects of the channel are gradually strengthened, resulting in a decrease in the signal-to-noise ratio. In order to improve bit error performance under low signal-to-noise ratio conditions, forward error correction (Forward Error Correction, FEC) technology has gradually become a necessary technology in the process of realizing high-speed communication links. FEC will introduce a large decoding delay while compensating for the loss of Signal-Noise Ratio (SNR) caused by channel impairment. It has a great impact on some delay-sensitive applications. Especially in a link with a (Clock and Data Recovery, CDR) relay, each additional level of relay requires an FEC decoding, which ...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04W28/22H04W40/22H04W88/18
CPCH04L1/0041H04W28/22H04W40/22H04W88/181Y02D30/70
Inventor陆玉春臧大军
OwnerHUAWEI TECH CO LTD