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Signal receiving and decoding method and device

A technology of signal receiving and decoding methods, which is applied in the field of signal receiving and decoding methods and devices, can solve problems such as high power consumption and complex circuit structure, and achieve the effects of reducing power consumption and simplifying circuit system architecture

Pending Publication Date: 2022-04-12
PEKING UNIV
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Problems solved by technology

[0004] The present invention provides a signal receiving and decoding method and device, which are used to solve the defects of complex structure and high power consumption of the PAM signal receiving end circuit in the prior art, and realize the receiving and decoding of PAM4 and higher-order PAM signals

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  • Signal receiving and decoding method and device
  • Signal receiving and decoding method and device

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0051] In order to facilitate a clearer understanding of the embodiments of the present application, some relevant background knowledge is introduced as follows.

[0052]The PAM8 signal uses 8 consecutive binary codes (000, 001, 010, 011, 100, 101, 110, 111) to represent the level amplitude for information transmission. Compared with Non-Return-to-Zero (NRZ) signals, each amplitude of PAM8 s...

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Abstract

The invention provides a signal receiving and decoding method and device, and the method comprises the steps: employing a comparator array, comparing a pulse amplitude modulation (PAM) voltage signal with a plurality of reference voltages of which the number is a first preset number, obtaining a plurality of paths of time sequence signals of which the number is the first preset number, the multiple paths of time sequence signals are used for representing a comparison result of the comparison; and decoding the multiple paths of time sequence signals to obtain multiple paths of NRZ signals of which the number is a second preset number. According to the invention, the PAM voltage signal is compared with a plurality of reference voltages in an analog domain to obtain a plurality of paths of time sequence signals, and an analog-to-digital converter and a demultiplexer module which are complex in structure and high in power consumption are prevented from being introduced, so that the architecture of a circuit system is simplified, the power consumption of the circuit system is reduced, and the method is suitable for receiving and decoding PAM4 and higher-order PAM signals.

Description

technical field [0001] The present invention relates to the technical field of optical communication, in particular to a signal receiving and decoding method and device. Background technique [0002] With the continuous popularization and maturity of cloud computing, Internet of Things technology, photoelectric information processing technology, artificial intelligence technology and 5th Generation Mobile Communication Technology (5th Generation Mobile Communication Technology), data centers will face explosive traffic growth. The requirements for the transmission rate are further increased. If the traditional non-return-to-zero (NRZ) signal is used, the time margin requirements for the transceiver chip and the transmission link will be very strict, and the loss of the channel to the high-bandwidth signal will also increase significantly. [0003] Aiming at the above difficulties and challenges, it is a potential and effective method to introduce multi-level modulation, suc...

Claims

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Application Information

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IPC IPC(8): H04L27/06
Inventor 石泾波杨书一王兴军唐明华
Owner PEKING UNIV
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