D2D Advertising Security Key Management
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Solution Overview
Problem
Existing mobile communication networks face challenges in ensuring the security and reliability of device-to-device (D2D) advertising services, particularly in managing hundreds of local advertising sources and allowing users to selectively receive advertisements in a cost-effective, efficient manner while preventing unauthorized use of licensed bands.
Innovation Solution
The network node establishes communication connections with advertising and receiving devices within a geographically limited service area, generates and manages security keys for encrypting and decrypting data, and uses these keys to authenticate and authorize devices, enabling real-time control and management of D2D communication links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If device-to-device (D2D) advertising services are enabled in mobile communication networks, then local hyper-advertising capabilities and user engagement are improved, but security risks and unauthorized access increase
Solution Approach 1:
The network node performs preliminary authentication and authorization of devices before allowing D2D advertising communications. Security keys are pre-established and validated by the network node, ensuring that only authorized devices can participate in local hyper-advertising services, thereby preventing unauthorized access before it occurs
Solution Approach 2:
The network node acts as an intermediary that mediates between advertising devices and receiving devices. It establishes communication connections, validates security credentials, and controls the D2D advertising links, providing a trusted third-party mechanism that enhances security while enabling versatile advertising capabilities
2Productivity
If multiple advertising devices are allowed to transmit advertisements via D2D communication, then advertising coverage and service quality are improved, but network resource consumption and management complexity increase
Solution Approach 1:
The network node implements feedback mechanisms to monitor and manage D2D advertising communications. It tracks advertising device performance, validates ongoing communications, and dynamically controls resource allocation based on network conditions, enabling efficient management of multiple advertising devices while maintaining high service quality
Solution Approach 2:
The system dynamically changes parameters such as security key validity periods and communication authorization states. The network node can adjust these parameters based on network conditions, device behavior, and service requirements, enabling flexible management of multiple advertising devices without increasing overall system complexity
3Reliability
If security keys are frequently updated for D2D communications, then security against unauthorized access is improved, but communication overhead and processing time increase
Solution Approach 1:
Security keys are updated periodically rather than continuously. The network node establishes security keys with predetermined validity periods, and these keys are renewed at regular intervals. This periodic update mechanism maintains strong security posture while avoiding the excessive overhead of continuous key management, thereby reducing time loss
Data Source
AI summary
There is provided a method, comprising: establishing, by a first network node, a communication connection to at least one advertising device located in a geographically limited service area; establishing a communication connection to at least one advertisement-receiving device; generating at least one security key for encrypting and decrypting at least part of the data which is to be transmitted in D2D communication links, wherein each security key is valid for a predetermined validity period, and common to those at least one advertising device and at least one advertisement-receiving device within the service area which fulfill predetermined criteria; causing transmission of information indicating the generated at least one security key to those at least one advertising device which fulfill the predetermined criteria; and causing transmission of information indicating at least one of the generated at least one security key to those at least one advertisement-receiving device which fulfill the predetermined criteria.