P2P Availability Signaling via QoS Characteristics Element
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Solution Overview
Problem
Current wireless communication systems lack clear mechanisms for signaling peer-to-peer (P2P) unavailability and updating/terminating P2P services, particularly in extended reality applications that require efficient P2P links between devices like head-mounted displays.
Innovation Solution
The proposed solution involves using a Quality of Service (QoS) Characteristics element and Target Wake Time (TWT) elements to signal unavailability, with specific fields and subfields within frames to differentiate P2P usage, allowing STAs to indicate unavailability patterns and update or terminate service periods through dedicated frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing wireless communication standards are used without P2P signaling mechanisms, then device compatibility is maintained, but P2P availability cannot be effectively signaled and managed
Solution Approach 1:
The patent reuses existing QoS Characteristics elements and TWT element structures for dual purposes: traditional quality of service management and P2P availability signaling. By making these existing elements multi-functional, the patent enables reliable P2P signaling without adding entirely new complex protocols, thus improving P2P link reliability while minimizing the increase in device complexity
Solution Approach 2:
The patent introduces specific subfields within existing frame structures (such as the Control Info field in QoS Characteristics elements) to carry P2P-specific availability information. This localized modification approach allows P2P signaling to be embedded within existing frameworks, achieving reliable P2P communication while maintaining overall system compatibility and limiting complexity growth to only the necessary local areas
2Reliability
If clear P2P unavailability signaling is implemented, then P2P communication reliability is improved, but frame structure complexity increases
Solution Approach 1:
The patent nests P2P availability signaling information within existing QoS Characteristics elements and TWT element structures. By embedding P2P-specific subfields inside these existing frame structures (such as nesting P2P availability indicators within the Control Info field), the patent achieves reliable P2P communication signaling while avoiding the need for entirely separate complex frame structures
Solution Approach 2:
The patent merges P2P availability signaling functionality with existing QoS management and TWT mechanisms. By combining multiple functions (quality of service management, target wake time scheduling, and P2P availability signaling) into unified frame structures, the patent reduces overall frame structure complexity compared to implementing separate dedicated signaling protocols for each function
3Adaptability or versatility
If dedicated P2P signaling mechanisms are added, then P2P service management capability is improved, but overall system complexity increases
Solution Approach 1:
The patent makes existing QoS Characteristics elements and TWT elements multi-functional by enabling them to carry both traditional QoS/TWT information and P2P availability signaling. This universality allows the system to manage P2P services effectively while reusing existing processing paths and data structures, thereby improving P2P service management capability without proportionally increasing system complexity
Solution Approach 2:
The patent establishes P2P availability signaling and service management capabilities through predefined frame structures and element formats before actual P2P communications occur. By preparing the signaling framework in advance within the protocol specification, the system enables adaptable P2P service management while avoiding the need for complex runtime negotiation and configuration mechanisms
Data Source
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AI summary
This disclosure describes systems, methods, and devices related to P2P signaling. A device may utilize a characteristics element to signal unavailability of a station device for peer-to-peer (P2P). The device may set a field within the characteristics element to indicate whether the station device is unavailable for P2P. The device may cause to send a frame comprising the characteristics element to the station device.