Beacon Frame Partial Reception for Low-Power Wi-Fi STAs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High power consumption in receiving beacon frames by Wi-Fi stations (STAs) due to the need to periodically receive complete frames, even when no downlink data is present.
Innovation Solution
Receiving only a portion of the beacon frame based on a configured receiving-length, performing packet analysis to determine if downlink data is needed, and entering a sleep state if no data is indicated, thereby reducing unnecessary frame reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the STA receives a complete beacon frame to maintain connection with the AP, then the connection reliability is improved, but the power consumption increases
Solution Approach 1:
The patent extracts only the essential traffic indication information from the beacon frame that is needed to determine whether downlink data exists. The receiving device receives a truncated beacon frame containing only the critical traffic indication message (TIM) portion, which is sufficient to determine if downlink data is pending, without receiving the complete beacon frame. This extraction principle resolves the contradiction by maintaining connection reliability through proper traffic indication while eliminating unnecessary power consumption from receiving the entire beacon frame.
2Measurement precision
If the STA receives the complete beacon frame to ensure accurate traffic indication, then the information accuracy is improved, but the reception time increases
Solution Approach 1:
The patent applies the extraction principle by receiving only the portion of the beacon frame containing the traffic indication message (TIM) rather than the complete beacon frame. The TIM is located at a specific offset position in the beacon frame, and the receiving device is configured to receive exactly up to that position. This ensures accurate traffic indication information is obtained while minimizing the reception time by excluding unnecessary subsequent beacon frame data.
3Stability of the object's composition
If the STA periodically receives complete beacon frames to maintain association with the AP, then the connection stability is improved, but the power consumption during idle periods increases
Solution Approach 1:
The patent applies extraction by receiving only the critical traffic indication portion of periodic beacon frames during idle periods. When no downlink data is present, the receiving device obtains minimal information (just the TIM) from truncated beacon frames, enabling it to quickly determine no data is available and remain in low-power state. This maintains connection stability through periodic beacon reception while dramatically reducing energy loss during idle periods compared to receiving complete beacon frames.
Solution Approach 2:
The patent utilizes periodic action by maintaining periodic beacon frame reception at configured intervals while optimizing what is received during each period. The receiving device continues to wake up periodically to receive beacon frames as required for association maintenance, but during each periodic reception, it receives only the truncated version containing traffic indication. This periodic approach preserves connection stability while minimizing energy consumption during idle periods between data transmissions.
Data Source
AI summary
The present application provides a method and an apparatus for information reception, a receiving device, a storage medium and a program product. The method includes: obtaining a receiving-length; receiving a beacon frame sent by a sending device based on the receiving-length to obtain target information, where the receiving-length is less than the total length of the beacon frame; performing packet analysis on the target information to obtain a first analysis result; and controlling, in case of determining that the first analysis result indicates that no downlink data from a sending device is to be sent to the receiving device, the receiving device to enter a sleep state. The method and apparatus for receiving information, device, storage medium and program product provided by the present application are used to reduce power consumption in receiving the beacon frame.