Base Station Data Encryption Without RRC Connection
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Solution Overview
Problem
In wireless communication networks, data transmission efficiency is hindered when user equipment is in idle mode and lacks a radio resource control (RRC) connection, as the base station cannot perform encryption and decryption, compromising security and efficiency.
Innovation Solution
The method involves generating a public key at the base station using an encryption algorithm and identifier, transmitting encryption algorithm identification to the user equipment, and adding indication information to data packets to enable encryption and decryption without an established RRC connection, ensuring compatibility between the base station and user equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If user equipment sends data without establishing RRC connection, then processing resources are reduced and data transmission efficiency is improved, but the base station cannot perform encryption and decryption, compromising security
Solution Approach 1:
The base station performs preliminary actions by generating and storing the user equipment's public key and encryption context information before data transmission occurs. When the user equipment sends data without RRC connection, the base station can immediately use the pre-prepared encryption information to encrypt and decrypt data, eliminating the security vulnerability while maintaining transmission efficiency.
Solution Approach 2:
The patent introduces public key encryption as an intermediary mechanism that operates independently of the RRC connection state. The user equipment's public key serves as a mediator that enables secure data transmission even when the control plane connection (RRC) is not established, allowing the user plane data to be encrypted and decrypted without requiring full connection establishment.
2Use of energy by moving object
If the base station releases context information when user equipment is in idle mode, then processing resources are freed, but the base station loses the ability to encrypt and decrypt data when the user equipment reactivates without full connection establishment
Solution Approach 1:
The base station performs preliminary action by generating and retaining the user equipment's public key and essential encryption context information in a simplified form during idle mode, rather than completely releasing all context information. This allows the base station to maintain minimal encryption capability while conserving resources, enabling immediate encryption/decryption when data arrives without requiring full RRC reconnection.
Solution Approach 2:
The patent applies local quality by maintaining different levels of context information for different operational states. During idle mode, the base station keeps only the essential public key and encryption algorithm identification (local quality for idle state), while full context information is maintained when RRC connection is established. This selective retention enables resource efficiency while preserving critical security functionality.
Data Source
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AI summary
The present invention discloses a data transmission method, device, and system, and belongs to the field of communications technologies. The method includes: receiving a data packet sent by user equipment, where the data packet carries indication information, and the indication information is used to instruct a base station to establish a specified data connection to the user equipment; generating a first key of the user equipment based on the indication information and a public key of the base station; and performing data transmission with the user equipment based on the first key of the user equipment. According to such a data transmission method, the transmitted data can be encrypted and decrypted when there is no radio resource control connection between the base station and the user equipment, thereby improving data transmission security while ensuring data transmission efficiency.