Triggered TXOP Sharing Mode Selection for Low-Latency Wi-Fi
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Solution Overview
Problem
Existing wireless communication systems lack effective signaling for dynamically enabling, disabling, or suspending triggered transmission opportunity (TXOP) sharing procedures, leading to increased latency and reduced quality of service for real-time applications.
Innovation Solution
Implement capability and operation indications in TXOP sharing procedures to allow wireless devices to indicate supported TXOP sharing modes and dynamically switch between them, enabling dynamic selection of TXOP sharing modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If wireless devices use fixed TXOP sharing procedures, then the system structure is simple, but latency increases and quality of service deteriorates for real-time applications
Solution Approach 1:
The patent implements dynamic TXOP sharing modes where wireless devices can switch between different sharing modes (e.g., triggered P2P, triggered UL SU, triggered UL MU) based on real-time traffic conditions and device capabilities. This dynamic adaptation allows the system to optimize latency for real-time applications while maintaining manageable complexity through standardized mode definitions and capability signaling mechanisms.
2Adaptability or versatility
If wireless devices support multiple TXOP sharing modes, then adaptability improves, but signaling complexity increases
Solution Approach 1:
The patent segments the TXOP sharing functionality into distinct, identifiable modes (triggered P2P, triggered UL SU, triggered UL MU) with specific capability flags and signaling elements. This segmentation allows devices to advertise support for specific modes through capability messages and enables targeted signaling for mode selection, improving adaptability while controlling signaling complexity through structured information exchange protocols.
3Reliability
If capability indication messages are exchanged, then device compatibility improves, but transmission overhead increases
Solution Approach 1:
The patent implements capability indication through selective flag setting in existing frame formats rather than requiring complete capability message exchanges in all cases. Devices can indicate support for specific TXOP sharing modes through partial capability signals in management frames or control fields, enabling compatibility verification with minimal overhead. Full capability negotiation only occurs when necessary, reducing unnecessary transmission overhead while maintaining reliable compatibility assurance.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A first wireless device and a second wireless device (e.g., access points, stations) may support transmission opportunity (TXOP) sharing procedures. The second wireless device may transmit a frame indicating a capability of the second wireless device to support one or more triggered TXOP sharing modes. The second wireless device may transmit an indication (e.g., a frame) indicating to change support for the triggered TXOP sharing modes based on the capability. The change may indicate to suspend, resume, disable, or enable the triggered TXOP sharing modes. For example, the second wireless device may transmit an indication to suspend support of a first triggered TXOP sharing mode that enables the second wireless device to perform peer-to-peer transmissions. Accordingly, the first wireless device may trigger the second wireless device to communicate according to the supported triggered TXOP sharing modes.