Wireless Channel Selection via Occupancy Measurement
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Solution Overview
Problem
Existing wireless network mechanisms for selecting channels based on energy measurements can lead to performance issues, particularly for low-latency applications, as they fail to accurately assess channel availability and future congestion patterns, resulting in channel blocking and data transmission failures.
Innovation Solution
A wireless device performs periodic measurements of channel occupancies during a measurement period without transmitting data, using a processor to determine channel occupancies based on energy sensing, idle times, and collision probabilities, and selects the least occupied channel for data transmission after the measurement period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a wireless device performs measurements to determine channel occupancies during a measurement period without transmitting data, then the accuracy of channel selection is improved, but the time required before data transmission can begin is increased
Solution Approach 1:
The wireless device performs channel occupancy measurements during a measurement period before selecting and transmitting data on the chosen channel. This preliminary assessment of channel conditions allows the device to identify the least occupied channel in advance, ensuring more accurate channel selection while the measurement period is accounted for in the overall transmission timing
2Productivity
If multiple wireless devices share the same set of channels, then resource utilization is improved, but channel congestion and performance degradation occur
Solution Approach 1:
The wireless device determines channel occupancy parameters by monitoring energy levels and idle times on each channel during the measurement period. By measuring and comparing these parameters across multiple channels, the device can identify the channel with the most favorable conditions (least occupied), thereby improving transmission reliability while maintaining efficient resource utilization across the network
3Measurement precision
If the wireless device continuously monitors channels to determine occupancy, then measurement accuracy is improved, but power consumption increases
Solution Approach 1:
The wireless device performs measurements during a specific measurement period rather than continuously monitoring channels at all times. The device monitors channels periodically to determine occupancy status, then selects a channel based on these measurements. This periodic measurement approach maintains sufficient measurement accuracy for making informed channel selections while reducing overall power consumption compared to continuous monitoring
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach provides a more accurate assessment of channel congestion patterns, improving the selection of suitable channels for low-latency applications and reducing the likelihood of channel blocking, thereby enhancing data transmission reliability and efficiency.
Implementation Method 1
The wireless device can perform measurements to determine channel occupancies during a measurement period for the channels
Data Source
AI summary
Some aspects of this disclosure relate to apparatuses and methods for implementing techniques for a first wireless device to select a channel to a second wireless device among a set of channels to the second wireless device shared by a set of wireless devices of the wireless network, and further transmit data to the second wireless device over the selected channel. The first wireless device can perform a measurement to determine a channel occupancy during a measurement period for a channel, wherein the measurement period includes a plurality of periodic transmission durations. The first wireless device can select a channel that is less occupied indicated by the channel occupancy of the channel. The first wireless device can further transmit data to the second wireless device over the selected channel in a transmission period after the measurement period.