Data transmission method and apparatus

By introducing a data transmission device into the broadband access network and using CPE and an optional second OLT for encryption encapsulation and decryption authentication, the problem of users being unable to access the internet during optical cable failures is solved, ensuring service continuity and data transmission security during failures.

CN115802214BActive Publication Date: 2025-12-02CHINA UNITED NETWORK COMM GRP CO LTD +1
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Patent Information

Application Number
CN202211406204.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-10
Publication Date
2025-12-02
Estimated Expiration
2042-11-10

AI Technical Summary

Technical Problem

In existing troubleshooting methods, users are unable to access the internet during emergency repairs of faulty optical cables, resulting in the inability to process related services and causing adverse effects on users.

Method used

A data transmission device, including a first customer front-end equipment (CPE) and an optional second OLT, is introduced into the broadband access network to process the raw data packets of user terminals through encryption encapsulation and decryption authentication, and send them to the broadband access server through the base station to ensure uninterrupted communication during optical cable failures.

Benefits of technology

During fiber optic cable failures, users can continue to access the internet and communicate, ensuring the continuity of business processing. After the failure is resolved, the system switches back to the normal path, ensuring the security and reliability of data transmission.

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Abstract

This application provides a data transmission method and apparatus, wherein the apparatus includes: a first Customer Pre-installation Equipment (CPE); if a fault occurs in the optical cable between the broadband access server and the first optical line terminal (OLT) in the broadband access network, the first CPE is used to obtain a first raw data packet sent by a user terminal from the first OLT, and to encrypt and encapsulate the first raw data packet to obtain a first encrypted data packet; the first CPE is also used to send the first encrypted data packet to the broadband access server through a base station, so that the broadband access server decrypts and authenticates the first encrypted data packet before sending it to the Internet. The method of this application solves the problem in existing fault-solving methods where users cannot access the Internet during emergency repairs of faulty optical cables.
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