Ad Hoc Wireless Link Establishment via Intermediary Beacon
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Solution Overview
Problem
Current wireless communication systems face challenges in enabling secure and rapid ad hoc communication across heterogeneous systems, particularly in mission-critical applications like public safety, where devices with different wireless technologies struggle to collaborate effectively, leading to communication gaps due to lack of coverage.
Innovation Solution
The method involves a first device using a first wireless wide area network technology and a second device using a second wireless technology, with the second device advertising system attributes via a third wireless technology, allowing the first device to establish a secure link if compatible, using personal area network technology such as WiFi or Bluetooth, even when the first device loses coverage, and utilizing cryptographic keys for encryption and decryption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices use different wireless technologies (heterogeneous systems), then communication coverage and flexibility are improved, but security and compatibility become problematic
Solution Approach 1:
The patent applies preliminary action by pre-provisioning devices with cryptographic keys and system attributes before ad hoc communication is needed. When a device loses coverage, it can immediately use these pre-loaded credentials to securely discover and connect to compatible peer devices without requiring real-time key exchange or authentication negotiations, thus resolving the security-coverage contradiction
Solution Approach 2:
The patent uses an intermediary approach by introducing a common third wireless technology (such as WiFi or Bluetooth) that both heterogeneous devices can use for initial discovery and connection establishment. This intermediary technology serves as a bridge that enables secure peer-to-peer linking between devices operating on different primary wireless technologies, maintaining security while enabling broad adaptability
2Loss of time
If devices establish ad hoc connections rapidly, then communication continuity is improved, but security verification time may be reduced
Solution Approach 1:
The patent resolves this contradiction by performing security verification in advance through pre-provisioning cryptographic keys and system attributes on devices. When ad hoc connection is needed, the pre-verified security credentials allow immediate connection establishment without real-time authentication delays, achieving both rapid connection and robust security verification
3Reliability
If devices use pre-provisioning for secure communication, then security is improved, but device complexity and provisioning overhead increase
Solution Approach 1:
The patent reduces provisioning complexity by making cryptographic keys and system attributes multi-functional. The same pre-provisioned credentials serve multiple purposes: device identification, security authentication, and compatibility verification across different wireless technologies. This universal credential system eliminates the need for separate provisioning mechanisms for each function, reducing overall device complexity while maintaining high security
Data Source
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AI summary
Peer-to-peer link establishment between two mobile devices respectively operating under a first and a second wireless technology. The first device advertises system attributes in a wireless beacon using a third wireless technology. The second device receives the system attributes and establishes a wireless link with the first device based on the received system attributes.