Heterogeneous switch chip, optical line terminal, communication system, and vehicle

CN122179482APending Publication Date: 2026-06-09BYD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BYD CO LTD
Filing Date
2024-12-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, the installation of DDR devices in optical line terminals results in significant data transmission delays, which affects the network transmission efficiency of communication systems.

Method used

It adopts a heterogeneous Switch chip, which includes an information conversion unit, an optical network access control module and a bus communication control unit. It supports data protocol conversion and transmission between optical network ports and bus communication ports, realizes data conversion between optical network protocols and bus communication protocols, and avoids the use of DDR devices.

Benefits of technology

This reduces the latency of the data transmission link and improves the data transmission speed and efficiency of the vehicle communication network.

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Abstract

This application discloses a heterogeneous switch chip, an optical line terminal (OLT), a communication system, and a vehicle. The heterogeneous switch chip is suitable for OLTs and has at least two data ports, including at least one optical network port and at least one bus communication port. The heterogeneous switch chip also includes an information conversion unit configured to support data protocol conversion and data transmission between the optical network port and the bus communication port. The heterogeneous switch chip provided in this application, through the information conversion unit, can support protocol conversion and data transmission between the optical network port and the bus communication port. That is, it realizes the conversion of data between the optical network protocol and the bus communication protocol, as well as the transmission between the optical network port and the bus communication port. This allows for data signal processing and transmission without the need for DDR devices, reducing data transmission link latency and improving the speed and efficiency of data transmission in the communication network.
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