PMK Caching Method Selection for Faster Wireless Re-Association
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Solution Overview
Problem
Existing wireless networks lack a method to determine the appropriate Pairwise Master Key (PMK) caching method for stations and wireless infrastructures, leading to uncertainty in deployment, increased transition/re-association times, and inefficient use of memory resources.
Innovation Solution
A method is introduced where wireless infrastructures advertise supported PMK caching methods, allowing stations to select an appropriate caching method based on the advertised options, and the wireless infrastructure creates PMK entries in cache stores accordingly, ensuring compatibility and efficient caching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If PMK caching methods are not determined in advance, then wireless networks can support multiple caching methods for flexibility, but transition and re-association times increase due to uncertainty in method selection
Solution Approach 1:
The wireless infrastructure performs preliminary actions by advertising supported PMK caching methods before actual association occurs. This allows the station to pre-determine the appropriate caching method, eliminating uncertainty during transition and re-association operations, thus reducing time loss while maintaining support for multiple methods
2Adaptability or versatility
If PMK caching methods are not aligned between station and infrastructure, then both entities can independently choose their preferred methods, but memory resources are used inefficiently due to mismatched caching strategies
Solution Approach 1:
The wireless infrastructure provides feedback by advertising its supported PMK caching methods to the station. This feedback mechanism enables the station to align its caching method selection with the infrastructure's capabilities, ensuring efficient memory resource utilization while preserving independent selection flexibility through informed decision-making
Data Source
AI summary
A selection of a Pairwise Master Key (PMK) caching method in a wireless deployment may be provided. One or more PMK caching methods that are supported by a wireless infrastructure may be advertised. A selection of a PMK caching method based on the advertised one or more PMK caching methods may be received from a first station. The first station may be authenticated in the wireless infrastructure. In response to authenticating, a PMK entry in a cache store associated with the PMK caching method may be created for the first station based on the selection.