WiGig Role Adaptation via Capability Exchange
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Solution Overview
Problem
In WiGig communication, wireless communication apparatuses are always connected as a PCP and STA due to the application of WPA, limiting their ability to utilize their multirole and STA-STA connection capabilities effectively.
Innovation Solution
A wireless communication apparatus that stores and acquires capability information to determine the roles of connected devices based on their capabilities, allowing for appropriate connections that consider their multirole and STA-STA connection capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If WPA authentication method is applied to WiGig communication, then authentication security is improved, but wireless communication apparatuses are limited to fixed PCP and STA roles, reducing adaptability
Solution Approach 1:
The patent implements dynamic role assignment where wireless communication apparatuses can transition between PCP and STA roles based on capability information exchange. The connection method determining section dynamically selects appropriate roles (PCP-PCP, STA-STA, or PCP-STA) after authentication, allowing the system to adapt to different capability configurations while maintaining WPA security framework
Solution Approach 2:
The patent changes the parameter of role assignment from fixed (determined before authentication) to variable (determined after authentication based on capability information). By introducing capability information exchange as a new parameter and using it to determine connection methods, the system resolves the contradiction between maintaining security and enabling role flexibility
2Device complexity
If fixed PCP and STA roles are assigned during authentication, then authentication process is simplified, but multirole and STA-STA connection capabilities cannot be utilized, reducing communication efficiency
Solution Approach 1:
The patent performs capability information exchange during the authentication phase as a preliminary action. Both apparatuses exchange their supported roles and connection methods before final connection establishment, enabling the system to determine optimal connection configurations in advance without complicating the authentication flow
Solution Approach 2:
The patent introduces capability information as an intermediary element that mediates between authentication security requirements and role flexibility needs. This intermediary carries role preference data during authentication, allowing the system to determine appropriate connection methods (PCP-PCP, STA-STA, or PCP-STA) without adding significant complexity to the authentication process
Data Source
AI summary
Wireless communication apparatus 100 is disclosed that can make appropriate connections taken the wireless communication capability of the wireless communication apparatus into consideration in WiGig communication. Wireless communication apparatus 100 (first wireless communication apparatus) that performs communication using WiGig includes: storage section 13 that stores capability information indicating wireless communication capability of the first wireless communication apparatus 100; capability information acquiring section 143 that acquires capability information of a second wireless communication apparatus which is a connection peer of the first wireless communication apparatus from the second wireless communication apparatus; and connection method determining section 145 that determines a role of each of first wireless communication apparatus 100 and the second wireless communication apparatus when the first and the second wireless communication apparatuses are connected, based on the capability information of first wireless communication apparatus 100 and the second wireless communication apparatus.