NAN Pairing Deauthentication for Coordinated Session Termination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems lack procedures for terminating neighbor awareness networking (NAN) pairing sessions other than through authentication key lifetime expiration, leading to potential information loss and decryption errors when one device removes the key without informing the other.
Innovation Solution
A first NAN device transmits a deauthentication frame to a second NAN device to terminate the pairing session, secured with the authentication key, and includes a header indicating both devices' addresses, allowing both to remove the authentication key and preventing information loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication key lifetime expiration is used to terminate pairing sessions, then session termination occurs automatically, but information loss and decryption errors occur when one device removes the key without informing the other
Solution Approach 1:
The patent applies preliminary action by having the first device send a deauthentication frame to the second device before actually removing the authentication key. This预先通知 allows the second device to prepare for session termination and avoid attempting to send messages after the key is removed, thus preventing information loss while ensuring reliable session termination
2Reliability
If deauthentication frame is transmitted to terminate pairing session, then both devices are aware of termination and can remove authentication keys, but additional communication overhead and latency are introduced
Solution Approach 1:
The patent extracts the essential termination notification function into a dedicated deauthentication frame with a specific action field. This streamlined approach notifies the second device of impending key removal without requiring complex multi-step acknowledgment protocols, thus achieving reliable coordination with minimal latency
3Productivity
If authentication key is removed without notification, then session termination is simple and quick, but the other device may attempt unauthorized message transmission
Solution Approach 1:
The patent applies preliminary anti-action by having the first device send a deauthentication frame that explicitly notifies the second device of the impending session termination and key removal. This allows the second device to stop transmission attempts before the key is removed, preventing unauthorized message transmission while maintaining quick termination
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Techniques described herein provide for a termination of a neighbor awareness networking (NAN) pairing session between a first NAN device and a second NAN device. A first NAN device that has initiated a pairing session with a second NAN device may transmit a deauthentication frame to the other NAN device to terminate the pairing session and remove the authentication key(s). The first NAN device and second NAN device terminate the pairing session and remove the authentication key(s). The deauthentication frame may include a header that indicates the addresses for the first and second NAN devices. In some cases, the first NAN device may establish NAN communications with multiple peer devices (e.g., in a NAN cluster). The first NAN device may multicast the deauthentication frame to the multiple devices. The multicast deauthentication frame may include an identifier for the NAN cluster.