P2P Group Formation in Wi-Fi Direct Systems
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Solution Overview
Problem
Current Wi-Fi Direct Service (WFDS) systems lack an efficient method for peer-to-peer (P2P) group formation and management, particularly in controlling or managing the Application Service Platform (ASP) of P2P devices.
Innovation Solution
A method and device for P2P group formation in a Wi-Fi Direct system, involving the transmission of provision discovery request and response frames between wireless devices to determine the group owner and client roles, allowing for the initiation of new P2P groups, reuse of existing persistent groups, and management of ASPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Wi-Fi Direct Service is implemented without a standardized P2P group formation method, then device connectivity and service functionality are enabled, but system complexity increases and service management becomes difficult
Solution Approach 1:
The patent applies parameter changes by defining specific connection capability parameters (New, Group Owner, Client, persistent group owner) that devices can indicate in provision discovery frames. This standardization allows devices to negotiate and establish P2P groups with clearly defined roles and capabilities, reducing system complexity while maintaining service versatility.
Solution Approach 2:
The patent segments the P2P group formation process into distinct phases: provision discovery (exchanging capability information), group formation (establishing roles), and service delivery. This segmentation allows each phase to be managed independently with standardized procedures, reducing overall system complexity while enabling versatile service functionality.
2Manufacturing precision
If P2P devices exchange detailed connection capability information, then group formation accuracy improves, but communication overhead and processing time increase
Solution Approach 1:
The patent applies partial action by exchanging only the essential connection capability parameters (New, Group Owner, Client, persistent group owner) needed for group formation, rather than all possible device attributes. This provides sufficient information for accurate group formation while minimizing communication overhead and processing time.
Solution Approach 2:
The patent uses preliminary action by having devices indicate their connection capabilities in advance during the provision discovery phase, before actual group formation occurs. This allows receiving devices to pre-determine compatibility and plan group formation strategies, reducing the time needed during the actual connection establishment.
Data Source
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AI summary
The present invention relates to a wireless communication system, and a method for peer to peer (P2P) group formation is disclosed. To this end, the method for P2P group formation may include transmitting, from a first wireless device to a second wireless device, a provision discovery request frame including connection capabilities of the first wireless device, and receiving, at the first wireless device, from the second wireless device, a provision discovery response frame including connection capabilities of the second wireless device. Here, the connection capabilities may include indicating at least one of: New in order to initiate a new group, Group Owner in order to become a group owner, and Client in order to become a client; and the first wireless device determines the group owner of a P2P group on the basis of the first connection capability and the second connection capability.