Wi-Fi STA Sleep Negotiation Across Multiple AP Idle Timers
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Solution Overview
Problem
Existing Wi-Fi technologies face challenges in enhancing power saving mechanisms for station devices (STA) when transitioning between multiple access point devices or access point multi-link devices (AP MLDs), leading to increased power consumption and inefficient spectrum utilization.
Innovation Solution
A sleep mechanism negotiation method that allows a station (STA) to receive identification information for both the first and second AP's maximum idle period parameters during initial association, enabling the first MAX BSS idle period timer to perform timing while the second timer is put to sleep, and setting the listen interval parameter to be less than the maximum idle periods, thereby reducing power consumption and optimizing spectrum utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the STA obtains idle period parameters from each AP separately, then the STA can have accurate timing information for each AP, but the power consumption increases
Solution Approach 1:
The patent combines the idle period parameters of multiple APs into a single maximum idle period value that is transmitted to the STA through one AP. This allows the STA to use a single timer instead of multiple timers, reducing power consumption while maintaining accurate timing information for transitioning between APs.
Solution Approach 2:
The maximum idle period parameter serves a universal function for multiple APs simultaneously. Instead of having separate parameters for each AP, a single parameter can be used across multiple APs, reducing the information the STA needs to process and store, thereby reducing power consumption.
2Adaptability or versatility
If the STA transitions between multiple AP devices, then the network coverage and connectivity are improved, but the power consumption increases due to frequent parameter re-obtainment
Solution Approach 1:
The patent applies preliminary action by pre-configuring the maximum idle period parameter to cover multiple APs before the STA transitions between them. This eliminates the need for the STA to re-obtain parameters during transitions, reducing power consumption while maintaining network connectivity.
Solution Approach 2:
The idle period parameter from one AP is effectively copied to apply to multiple APs. The STA receives the parameter from the first AP and uses it as a reference for subsequent APs, avoiding repeated parameter acquisition and reducing power consumption during transitions.
3Measurement precision
If separate MAX BSS idle period timers are used for each AP, then the timing precision for each AP is maintained, but the device complexity increases
Solution Approach 1:
The patent merges multiple separate timers into a single timer that manages idle periods across multiple APs. This reduces device complexity by eliminating the need to manage multiple timers simultaneously, while the single timer maintains precise timing through the maximum idle period parameter.
4Measurement precision
If the STA re-obtains idle period parameters after transitioning to a new AP, then the timing information remains accurate, but the communication overhead and power consumption increase
Solution Approach 1:
The system performs preliminary action by establishing the maximum idle period parameter before the STA transitions between APs. This pre-configuration eliminates the need for communication overhead during transitions, as the STA can reuse the existing parameter without needing to request new information from the new AP.
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 sleep mechanism method, an electronic device and a storage medium. The sleep mechanism method is applied to a station device (STA). The method comprises: receiving a first radio frame, which is sent by a first AP, wherein the first radio frame comprises first identification information, the first identification information identifies first MAX BSS idle period parameter information of the first AP and second MAX BSS idle period parameter information of a second AP, and the first AP and the second AP belong to different physical entities; and after the STA establishes an initial association with the first AP, a first MAX BSS idle period timer performing timing, and a second MAX BSS idle period timer not performing timing. Provided in the embodiments of the present disclosure is a mechanism for supporting the power saving of an STA.