Directional Transmission Sequence Selection for Wireless Network Collision Reduction
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Solution Overview
Problem
In dense wireless network environments, the sequential pattern of directional beacon transmissions can lead to collisions with nearby networks, affecting the ability of devices to discover, synchronize, and associate with the network, thereby impacting network robustness.
Innovation Solution
Employing a sequence selection module to dynamically change the directional transmission patterns, such as using random or round robin techniques, to reduce the likelihood of transmission collisions by varying the sequence of directional transmissions over time periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If directional beacon transmissions are performed in a fixed sequential pattern, then the transmission sequence is simple and predictable, but transmission collisions with nearby networks increase and network robustness deteriorates
Solution Approach 1:
The patent applies dynamics by making the beacon transmission sequence variable rather than fixed. The system dynamically changes the transmission sequence across different time periods, allowing the network to adapt to varying interference conditions and reduce collisions with nearby networks, thereby improving robustness without requiring complex centralized coordination
Solution Approach 2:
The patent implements periodic action by cycling through different transmission sequences over time. Each time period uses a different sequence from the set of available sequences, creating a periodic variation in transmission patterns that reduces systematic collisions while maintaining simplicity through the repetitive cycling of predefined sequences
2Ease of operation
If omnidirectional beacon transmission is used, then all client devices can be reached easily, but transmission power is wasted in directions where no devices are present and interference with nearby networks increases
Solution Approach 1:
The patent applies segmentation by dividing the omnidirectional transmission space into multiple directional sectors. Each beacon transmission is directed toward a specific sector, allowing the system to concentrate power where needed rather than broadcasting in all directions simultaneously. This segmentation enables targeted communication while reducing overall power consumption and interference
Solution Approach 2:
The patent implements local quality by making transmission characteristics direction-dependent. Each directional transmission is optimized for its specific sector, with power and timing adjusted according to local conditions in that direction. This allows efficient power usage in each local direction while collectively covering all areas where client devices may be present
Data Source
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AI summary
Embodiments provide techniques for the transmission of broadcasts. For instance, an apparatus may include a sequence selection module, and multiple radiating elements. The sequence selection module selects sequences of directional transmission patterns, where each selected sequence corresponds to a time period. The multiple radiating elements wirelessly transmit a broadcast at the time periods in accordance with the selected sequences. The broadcast may include, for example, beacons, and/or a data broadcast, and/or a control broadcast and/or a management broadcast.