Direct Wireless Connection Switching for Stable Peer Discovery
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Solution Overview
Problem
Existing communication apparatuses face challenges in establishing appropriate communication connections, particularly when employing multiple connection methods like Wi-Fi Direct and Wi-Fi Aware, leading to inefficiencies and potential disconnections.
Innovation Solution
The implementation of a communication apparatus and method that supports enhanced communication protocols, including IEEE 802.11ax and Target Wake Time (TWT) to optimize power consumption and reduce disconnections, along with improved negotiation processes in Wi-Fi Direct (WFD) standards to facilitate stable peer-to-peer connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a communication apparatus supports multiple connection methods (Wi-Fi Direct, Wi-Fi Aware), then versatility is improved, but connection stability deteriorates due to inappropriate connection establishment
Solution Approach 1:
The patent changes the parameter of connection method selection by determining whether to use Wi-Fi Direct or Wi-Fi Aware based on the role of the other communication apparatus (peer-to-peer vs. infrastructure mode). This parameter-based approach ensures that the appropriate connection method is selected, resolving the contradiction between supporting multiple methods and maintaining connection stability.
Solution Approach 2:
The patent implements feedback by detecting the role of the other communication apparatus and using this information to determine the appropriate connection method. This feedback mechanism prevents inappropriate connection establishment and ensures reliable communication while maintaining support for multiple connection methods.
2Ease of operation
If Wi-Fi Direct is used for direct communication, then peer-to-peer connectivity is improved, but connection failures occur when infrastructure mode devices are involved
Solution Approach 1:
The patent makes the connection method dynamic by selecting between Wi-Fi Direct and Wi-Fi Aware based on the detected role of the other apparatus. This dynamic adaptation ensures that Wi-Fi Direct is used for peer-to-peer connections while Wi-Fi Aware is used when infrastructure mode devices are involved, preventing connection failures.
Solution Approach 2:
The patent changes the connection method parameter based on the role detection result. When the other apparatus is in infrastructure mode, the system switches from Wi-Fi Direct to Wi-Fi Aware, ensuring connection success while maintaining ease of peer-to-peer operation.
3Adaptability or versatility
If communication apparatuses use traditional connection methods, then compatibility is maintained, but power consumption increases and disconnections occur
Solution Approach 1:
The patent implements periodic action through Target Wake Time (TWT), where communication apparatuses wake up at scheduled intervals to exchange data instead of maintaining continuous connection. This periodic communication reduces power consumption while maintaining compatibility with existing standards.
Solution Approach 2:
The patent changes the power management parameter by introducing TWT mechanisms that allow apparatuses to sleep between data exchange periods. This parameter change reduces power consumption while maintaining compatibility through standard-based implementation.
Data Source
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AI summary
A communication apparatus including a wireless direct function to perform direct wireless communication with a peer device without an external access point includes at least one memory and at least one processor which function as a first execution unit configured to operate the wireless direct function of a first method, a second execution unit configured to operate the wireless direct function of a second method including a connection process different from a connection process of the wireless direct function of the first method, and a control unit configured to switch to a peer device search using the wireless direct function of the first method in a case where a peer device search using the wireless direct function of the second method is performed and a peer device is not discovered within a predefined duration.