Signal equalization method, apparatus, system, and storage medium

By determining the center position of the branch path and simplifying the calculation of the state transition path in the signal transmission system, the problem of severe inter-symbol interference under high communication rates is solved, and efficient and low-complexity signal equalization is achieved, meeting the communication requirements of high density, low power consumption and low latency.

CN119316255BActive Publication Date: 2026-03-24HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-14
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

As communication rates increase, inter-symbol interference (ISI) in end-to-end links deteriorates significantly. Existing signal equalization methods are computationally complex and power-consuming, failing to meet the demands for high-density, low-power, and low-latency communication.

Method used

The center position of the branch path is determined based on the amplitude of the target signal at two adjacent times. The calculation of the state transition path is simplified by using the center metric and the cumulative metric of the path, reducing the computational resource overhead. Signal equalization is performed using the dimensionality-reduced level state.

Benefits of technology

It simplifies the signal equalization calculation process, reduces the overhead of computing resources and latency, improves the efficiency of signal equalization, and meets the communication requirements of high density, low power consumption and low latency.

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Abstract

The application provides a signal equalization method, device, system and storage medium. The method comprises: determining a coordinate value of a center position of a decision value corresponding to each branch path of a target signal according to amplitudes of the target signal at two adjacent time instants, the branch path being a path when the target signal level state is transferred at the two adjacent time instants; determining a center metric value of the target signal at a current time instant according to the coordinate value of the center position and a tap coefficient, the center metric value being used to measure a distance between the decision value and the center position; and determining a state transition path of a level state transition of the target signal from a starting time instant to the current time instant according to the center metric value, a path accumulated metric value at a previous time instant and the tap coefficient. According to the scheme, the signal can be equalized, and the computational resource overhead and the delay in the signal equalization process are reduced.
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Citation Information

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