Multi-Link TWT Frame Structure for Low-Power Wi-Fi Scheduling
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Solution Overview
Problem
The existing IEEE 802.11 TWT mechanism supports only single-link operations and is not compatible with multi-link operations, leading to increased power consumption in wireless devices during multi-band aggregation and collaboration.
Innovation Solution
A multi-link TWT data frame is generated based on one link, incorporating a baseline TWT and multiple TWT offsets, to facilitate multi-link TWT settings, reducing power consumption by minimizing redundant signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the existing IEEE 802.11 TWT mechanism is used for single-link operations, then power consumption is controlled, but it is not compatible with multi-link operations leading to increased power consumption
Solution Approach 1:
The patent merges multiple TWT parameters (baseline TWT and multiple TWT offsets) into a single data frame structure. Instead of negotiating separate TWT parameters for each link, the invention combines them into one unified multi-link TWT data frame that can be negotiated through a single signaling exchange, thereby reducing power consumption while enabling multi-link operation compatibility
2Reliability
If separate TWT parameters are negotiated for each link in multi-link operations, then each link can be optimized, but redundant signaling increases power consumption
Solution Approach 1:
The patent creates a universal multi-link TWT data frame structure that serves multiple links simultaneously. This single data frame structure can accommodate TWT parameters for multiple links through the baseline TWT and TWT offsets mechanism, allowing one signaling exchange to optimize multiple links rather than requiring separate negotiations for each link
3Adaptability or versatility
If multi-link TWT settings are implemented without a unified data frame structure, then multi-link operations can be supported, but negotiation complexity increases
Solution Approach 1:
The patent segments the multi-link TWT parameters into a structured format with a baseline TWT component and multiple TWT offset components. This segmentation allows the complex multi-link TWT configuration to be broken down into manageable parts that can be systematically negotiated and applied across multiple links, reducing the overall negotiation complexity
Data Source
AI summary
A data transmission method includes: generating, by a terminal, a multi-link target wakeup time (TWT) data frame based on one link, the TWT data frame including a baseline TWT and a plurality of TWT offsets with respect to the baseline TWT; and sending, by the terminal, the TWT data frame.