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A signal receiving method and system

A signal receiving and optical signal technology, applied in the field of communication, can solve problems such as no mature solutions, and achieve the effect of improving link performance

Active Publication Date: 2021-08-24
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for the reception of multiple high-transmission rate signals of 10Gbps and above, especially three and above transmission rates, there is currently no mature solution

Method used

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  • A signal receiving method and system
  • A signal receiving method and system
  • A signal receiving method and system

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Embodiment Construction

[0056] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0057] In order to protect the network investment and not affect the business of existing users, for the form of OLT upgrade, operators mainly adopt the combination (COMBO) method, that is, the optical module of the OLT supports multi-rate transmission and multi-rate reception functions, such as 1Gbps / 10Gbps or 2.5Gbps / 10Gbps dual transmission rate.

[0058] For the TDMA method used in the uplink direction of PON, figure 2 It is a schematic diagram of a 1Gbps / 10Gbps dual transmission rate signal receiving scheme in the TDMA mode. Multiple ONUs send optical signals carrying service data to the OLT in different time slots on the specified wavelength. The service data transmission rates are 1Gbps and 10Gbps. The optical signal is converted into a current signal through a 10Gbps photodiode (PhotoDiode, PD), and a 1Gbps / 10Gbps transimped...

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Abstract

The invention discloses a signal receiving method and system, and relates to the technical field of communication. The signal receiving method includes: receiving an optical signal carrying service data, and converting the optical signal into a voltage signal, wherein the transmission rate of the service data is within a limited range; performing analog-to-digital conversion on the voltage signal to obtain a sampling signal, wherein the sampling rate It is greater than the upper limit of the limited range; according to the transmission rate of the business data, the sampling signal is subjected to equalization filtering processing; the output data of the equalization filtering processing is subjected to digital-to-analog conversion, and the recovered data is obtained and output to the corresponding physical media adaptation interface. The invention can receive service data of multiple transmission rates and improve link performance.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a signal receiving method and system. Background technique [0002] As big data, cloud computing, and the Internet of Things move toward large-scale applications and driven by new services, data traffic increases exponentially, which puts higher demands on the carrying capacity of network infrastructure. As the "last mile" of the optical network, the bandwidth rate of the Passive Optical Network (PON) must also be increased to match the bandwidth capability requirements of new services. see figure 1 The schematic diagram of the PON network system of , the PON network system includes an optical line terminal (Optical LineTerminal, OLT), an optical distribution network (Optical Distribution Network, ODN) and m optical network units (Optical Network Unit, ONU), wherein, the direction from the OLT to the ONU (Downlink direction) adopts broadcast mode, ONU to OLT dire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00H04L25/02
CPCH04L25/0292H04Q11/0003H04Q11/0067
Inventor 王素椅余长亮张逾进
Owner FENGHUO COMM SCI & TECH CO LTD