Encoding and decoding method and device in optical communication

A coding method and optical communication technology, which is applied in the field of coding and decoding of internal transmission signals of optical communication equipment, can solve the problem of low utilization rate of communication channels, and achieve the effects of improving channel utilization efficiency, reducing package size, and reducing pins

Active Publication Date: 2022-01-14
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the prior art, the number of optical modules connected to the OLT is large, and various signals need to be transmitted between each optical module and the OLT through different connections, resulting in low utilization of communication channels

Method used

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  • Encoding and decoding method and device in optical communication
  • Encoding and decoding method and device in optical communication
  • Encoding and decoding method and device in optical communication

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Embodiment Construction

[0043] Before elaborating the solutions provided by the embodiments of the present application in detail, in order to facilitate understanding of the technical solutions provided by the embodiments of the present application, the related technologies and concepts involved in the embodiments of the present application are firstly introduced.

[0044] 1. Signals that need to be transmitted between the optical module and the PON chip: various signals need to be sent between the optical module and the PON chip, such as data signals carrying uplink and downlink business data between optical communication devices, as well as I2C signals, Rx_SD, Tx_Fault, On_Line , Power_On, Reset, Rate_Select, Tx_Disable, RSSI_Triger and other control signals. Among them, the business data is the data that the optical communication equipment needs to transmit to other optical communication equipment through the optical module, and the control signal is used to transmit the status and control informat...

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Abstract

The embodiment of the present application provides a codec method for optical communication, in which the signal transmitted between the communication chip and the optical module is divided into data signal, delay signal and There are three types of real-time signals, and the delayed signals are coded into control data, which are multiplexed with business data in one channel for transmission. At the same time, the level transition of the real-time signal and the control data and business data are uniformly encoded and retransmitted. Using the encoding and decoding method provided by the embodiment of the present application, one line can be used to transmit multiple signals, effectively improving signal transmission efficiency and line utilization, reducing the number of pins of the communication chip, and further reducing the size of the communication chip. In addition, due to the reduction of communication lines, the interference between various signals can also be reduced.

Description

technical field [0001] The present application relates to the field of optical communication, and in particular to a method and device for encoding and decoding internal transmission signals of optical communication equipment. Background technique [0002] With the continuous enrichment of multimedia services, the demand for access network bandwidth is increasing. In this case, the application of passive optics network (PON) is becoming wider and wider. It can provide long-distance, Large bandwidth access, which cannot be achieved by traditional asymmetric digital subscriber line (ADSL). [0003] PON refers to a passive electronic device consisting of an optical line terminal (OLT) as a central office device, an optical network unit (ONU) as a terminal device, and an optical distribution network (ODN) system. Wherein, the OLT and the ONU may be collectively referred to as an optical communication device, and the optical communication device includes a PON chip and an optic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/25H04B10/516H04Q11/00
CPCH04Q11/0067H04B10/25H04B10/516
Inventor 薛建林李豫西聂世玮
Owner HUAWEI TECH CO LTD
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