Wi-Fi Access Point Power Saving via Simplified Beacon Frames
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Solution Overview
Problem
Current Wi-Fi access points experience high power consumption without effective power saving solutions, leading to inefficient energy usage.
Innovation Solution
The access point switches to a power saving mode by periodically broadcasting a simplified beacon frame that includes only the service set identity, reducing the frame length and frequency to minimize power consumption, and adjusts the beacon interval to balance energy savings with network discovery time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the access point continuously transmits full beacon frames to maintain network visibility, then network discovery and accessibility are improved, but power consumption increases
Solution Approach 1:
The access point transmits beacon frames periodically rather than continuously, entering sleep modes between transmissions. This periodic operation reduces power consumption while maintaining network visibility at intervals, resolving the contradiction between continuous network accessibility and energy savings.
Solution Approach 2:
The patent extracts and transmits only essential information elements in beacon frames during power-saving mode, omitting non-critical data. This reduction in beacon frame size decreases transmission time and energy consumption while preserving core network identification functionality.
2Use of energy by moving object
If the access point transmits simplified beacon frames with fewer information elements, then power consumption is reduced, but network information completeness deteriorates
Solution Approach 1:
The access point applies different information completeness levels to different operational states: full information elements are transmitted when fully operational, while simplified essential elements are transmitted during power-saving modes. This local quality differentiation resolves the contradiction between information completeness and energy consumption by matching information detail to operational context.
Data Source
AI summary
A method for implementing power saving of an access point on a wireless communication network includes: when detecting that no mobile terminal is associated, switching, by the access point, from a normal working mode to a power saving working mode; and periodically broadcasting, by the access point, a simplified beacon frame in the power saving working mode, where the simplified frame includes only a service set identity. An embodiment of the present invention further provides an access point on a wireless communication network. The access point broadcasts the simplified beacon frame in the power saving working mode. Therefore, the length of the beacon frame is shortened, thereby shortening the sending time to achieve the objective of reducing power consumption.