OFDMA Communication Apparatus Seamless Mode Switching
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Solution Overview
Problem
Current wireless communication systems lack the ability to seamlessly switch between infrastructure mode and peer-to-peer mode without an external access point, limiting convenience and efficiency in wireless communication setups.
Innovation Solution
A communication apparatus with a processor and memory that enables wireless communication in both infrastructure and peer-to-peer modes by receiving information about an external access point, processing OFDMA frames according to IEEE 802.11 standards, and transmitting trigger frames for orthogonal frequency division multiple access (OFDMA) operations, allowing direct communication without an external access point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication is performed through an external access point (infrastructure mode), then communication reliability is improved, but device complexity and power consumption increase
Solution Approach 1:
The communication apparatus dynamically switches between infrastructure mode (via external access point) and peer-to-peer mode (direct connection) based on connection status. When the external access point connection is lost or unavailable, the system automatically transitions to peer-to-peer communication, maintaining communication reliability while adapting to changing network conditions.
Solution Approach 2:
The communication apparatus is designed to perform multiple communication functions: it can operate as a station connecting to external access points (infrastructure mode) and simultaneously function as a peer-to-peer communication device (direct mode). This multi-functionality allows the system to maintain reliability across different network configurations without requiring separate dedicated devices.
2Device complexity
If wireless communication is performed without an external access point (peer-to-peer mode), then device complexity is reduced, but communication efficiency and reliability deteriorate
Solution Approach 1:
The system dynamically selects the appropriate communication mode based on real-time connection status. When peer-to-peer connection is established and stable, the system operates in direct mode for simplicity. When connection quality degrades or external access points become available, it transitions to infrastructure mode to enhance reliability, thus balancing complexity and reliability adaptively.
3Productivity
If OFDMA communication is implemented, then communication efficiency and productivity are improved, but device complexity increases
Solution Approach 1:
The external access point serves as an intermediary that manages OFDMA resource allocation and coordination. By offloading the complex OFDMA scheduling and resource management functions to the external access point, the communication apparatus can participate in efficient OFDMA communication without bearing the full burden of implementation complexity, thus achieving high productivity with manageable device complexity.
4Ease of operation
If seamless mode switching is enabled, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The communication apparatus automatically monitors connection status and performs mode switching without user intervention. The system self-manages the transition between infrastructure mode and peer-to-peer mode based on pre-defined connection criteria, providing seamless operation experience while keeping the control logic automated rather than requiring complex user-facing controls.
Data Source
AI summary
A communication apparatus receives a first trigger frame including information about orthogonal frequency division multiple access (OFDMA) conforming to IEEE 802.11 standard from an external access point external to the communication apparatus while a first mode is enabled, performs communication processing in the first mode through OFDMA conforming to the IEEE 802.11 standard based on information about the first trigger frame, and transmits, in a case where a second mode is enabled, a second trigger frame including information about OFDMA conforming to the IEEE 802.11 standard.