Beacon Frame Scheduling for AP Groups to Prevent Interference
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Solution Overview
Problem
In wireless networks with closely deployed access points, beacon frames interfere with each other, reducing transmission robustness.
Innovation Solution
A master access point generates indication information to allocate non-overlapping transmission time periods for beacon frames among access points in a collaboration group, ensuring no collisions and prohibiting data transmission during these periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple APs are deployed within a specific range to avoid communication blind spots, then coverage is improved, but beacon frames interfere with each other reducing transmission robustness
Solution Approach 1:
The beacon transmission process is segmented by dividing the set of APs into multiple groups, where each group transmits beacons in dedicated time periods. This segmentation eliminates interference between APs while maintaining comprehensive coverage through coordinated group transmissions.
Solution Approach 2:
APs transmit beacon frames in periodic cycles with different time periods assigned to different groups. Each group transmits beacons periodically in its designated time slot, ensuring regular updates while avoiding continuous interference with other APs.
2Loss of time
If APs transmit beacon frames simultaneously to provide timely updates, then information freshness is improved, but collision between beacon frames increases
Solution Approach 1:
The simultaneous transmission problem is solved by segmenting APs into groups that transmit at different times. Each group maintains information freshness by transmitting periodically, while the segmentation prevents collisions between groups through time-division multiplexing.
Solution Approach 2:
The system performs preliminary grouping of APs and assigns transmission time periods before actual beacon transmission. This preliminary organization ensures that when beacons are transmitted, no collisions occur while maintaining timely updates through pre-planned periodic schedules.
Data Source
AI summary
This application provides a beacon frame transmission control method and a related apparatus. The method includes: generating, by a master access point AP, indication information used to indicate a transmission time period of a beacon frame of at least one secondary AP; and sending, by the master AP, the indication information to the at least one secondary AP, where the master AP and the at least one secondary AP belong to a same AP collaboration group, and transmission time periods of beacon frames of APs in the AP collaboration group are different. According to technical solutions provided in this application, transmission robustness of the beacon frame can be improved.