AP Sleep-State Link Signaling for Wi-Fi Power Saving
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Solution Overview
Problem
Existing Wi-Fi technologies, particularly in the Ultra High Reliability (UHR) band, face challenges in enhancing power-saving mechanisms for Access Point (AP) devices, especially those in battery-powered forms like soft APs and NSTR mobile APs, which often have high power consumption due to non-continuous communication states.
Innovation Solution
Implementing a communication method where APs determine and send wireless frames with identification information indicating target links for which a traffic identifier-to-link (TID-to-Link) mapping mechanism has been established, signaling a suspended state during sleep periods to prevent data communication, thereby conserving power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AP devices operate continuously to maintain data communication, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic action by enabling the AP to alternate between awake states (for data communication) and sleep states (for power saving). The AP uses identification information in wireless frames to indicate when it will be in suspended state during sleep periods, allowing it to周期性地 wake up for communication and then return to sleep, thus reducing overall power consumption while maintaining necessary communication reliability.
2Use of energy by moving object
If AP devices enter suspended state during sleep periods, then power consumption is reduced, but data communication capability deteriorates
Solution Approach 1:
The patent applies preliminary action by having the AP send identification information in advance within wireless frames before entering the suspended state. This identification information indicates to STAs which links will be suspended during upcoming sleep periods, allowing STAs to prepare accordingly. This advance notification ensures that communication can be reliably resumed when the AP wakes up, preventing data loss or communication failures.
3Adaptability or versatility
If multiple links are supported for TID-to-Link mapping, then communication versatility is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the communication system into multiple independent links, each capable of having its own TID-to-Link mapping established. This allows the AP to selectively suspend or activate specific links based on power needs and communication requirements. By segmenting the communication into separate links, the system achieves versatility in link management while keeping the complexity of each individual link manageable through the use of identification information to track which links are suspended.
Data Source
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AI summary
The embodiments of the present disclosure relate to the technical field of mobile communications. Provided are a communication method, an electronic device and a storage medium. The communication method is applied to an access point device (AP). The method comprises: determining a first radio frame, wherein the first radio frame comprises first identification information, the first identification information indicates one or more target links for which a traffic identifier-to-link (TID-to-Link) mapping mechanism has been established, and an AP is in a suspended state within a sleep period under the link; and sending the first radio frame. The embodiments of the present disclosure provide a mechanism for supporting power saving of an AP.