Dynamic Priority Slot Allocation for Co-located Radio Interference
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Solution Overview
Problem
Co-located WiFi and Bluetooth radios operating in the same frequency band often experience interference, leading to poor performance and inefficient bandwidth use due to fixed priority assignments in existing co-existence schemes.
Innovation Solution
A method is introduced to dynamically set priority levels for slots based on the likelihood of their requirement, using historical data and classifier outputs to adapt priority levels for re-transmission slots and sniff anchor points, and signaling these levels to co-located radios to optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed priority assignments are used in co-existence schemes, then implementation simplicity is maintained, but resource allocation efficiency deteriorates due to inability to adapt to varying radio conditions
Solution Approach 1:
The patent applies dynamics by transitioning from fixed priority assignments to dynamic priority levels that adapt to varying radio conditions. The system continuously monitors channel quality indicators and adjusts priority levels accordingly, allowing the co-existence scheme to respond to changing environmental conditions rather than relying on static configurations.
Solution Approach 2:
The patent implements feedback mechanisms where the system monitors radio conditions, transmission outcomes, and channel quality indicators. Based on this feedback, the system adjusts priority levels for different radios and time slots, creating a closed-loop control system that continuously optimizes resource allocation based on actual performance data.
2Object-affected harmful factors
If TDM time division multiplexing is used to share bandwidth, then interference between co-located radios is reduced, but bandwidth utilization efficiency deteriorates due to idle time slots
Solution Approach 1:
The patent makes the TDM time division multiplexing dynamic by adjusting time slot allocations and priority levels based on actual radio conditions and traffic requirements. Instead of fixed time slot assignments, the system dynamically reallocates slots to active radios, eliminating idle time slots while maintaining interference mitigation through controlled access.
Solution Approach 2:
The patent changes the parameter of time slot priority levels based on channel quality indicators and traffic patterns. By adjusting these parameters dynamically, the system optimizes bandwidth utilization while maintaining the interference reduction benefits of TDM multiplexing.
3Reliability
If re-transmission slots are always reserved, then transmission reliability is improved, but resource allocation efficiency deteriorates when re-transmissions are not needed
Solution Approach 1:
The patent applies dynamics to re-transmission slot allocation by making it conditional rather than fixed. The system monitors transmission outcomes and channel conditions to dynamically determine when re-transmission slots are needed, allocating them only when necessary to maintain reliability while improving overall resource utilization efficiency.
Solution Approach 2:
The patent changes the priority level parameter of time slots based on transmission success indicators. When primary transmissions succeed, re-transmission slots are de-prioritized or released for other uses. When failures occur, the system dynamically allocates re-transmission slots, maintaining reliability while optimizing resource efficiency.
Data Source
AI summary
A co-existence method is described. The method comprises setting a priority level of a slot based on the likelihood that the slot will be required by a first radio and signaling the priority level to radio which is co-located with the first radio and which shares a resource with the first radio. The slot may, for example, be a re-transmission slot following a primary transmission slot or may be a sniff anchor point. The likelihood may be determined based on one or more factors, such as historical data or knowledge of the activity of a peer of the first radio.