Primary Channel Prioritization for Low-Latency Radio Resource Access
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently assigning and switching radio resources across multiple primary channels when events are detected, leading to suboptimal bandwidth utilization and increased latency due to contention-based access mechanisms.
Innovation Solution
Implement rules for prioritizing primary channel access based on prioritization criteria, including assigned priority levels and emergency preparedness, to optimize resource allocation and mitigate adjacent channel interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If contention-based channel access mechanism is used to share wireless medium among multiple devices, then device compatibility and ease of operation are improved, but bandwidth utilization and access efficiency deteriorate due to channel conflicts and waiting delays
Solution Approach 1:
The patent segments the wireless channel access process by introducing priority-based channel selection that divides devices into different access categories. High-priority devices (including emergency devices) are segmented from standard devices, allowing them to access primary channels without contention delays, while standard devices continue using contention-based access. This segmentation resolves the contradiction by maintaining ease of operation for all devices while improving overall bandwidth utilization through prioritized access paths.
Solution Approach 2:
The patent changes the parameter of channel access priority by introducing priority indicators in resource allocation messages. Devices adjust their access behavior based on received priority parameters, with high-priority devices skipping contention procedures and directly accessing primary channels. This parameter change enables the system to maintain compatibility with standard contention-based mechanisms while improving productivity through optimized access patterns for critical traffic.
2Reliability
If devices wait for idle period before transmitting after sensing busy channel, then collision avoidance is improved, but access latency increases due to waiting delays
Solution Approach 1:
The patent applies preliminary action by having high-priority devices pre-assigned priority indicators before channel access attempts. When these devices need to transmit, they immediately use the pre-configured priority information to bypass contention and wait procedures, directly accessing the primary channel. This preliminary assignment of priority status eliminates the need for high-priority devices to wait for idle periods, reducing access latency while standard devices continue to implement collision avoidance through traditional waiting mechanisms.
3Measurement precision
If primary channel is occupied by another device transmission, then carrier sensing accuracy is improved, but channel utilization deteriorates due to access denial
Solution Approach 1:
The patent introduces dynamic channel access rights based on priority status. When a high-priority device needs to transmit, the system dynamically grants it immediate access to the primary channel even if standard devices are currently occupying it. The priority indicator in resource allocation messages enables this dynamic reallocation, allowing the channel utilization to be optimized for critical traffic while maintaining accurate carrier sensing for all devices to detect and respond to channel status changes.
Data Source
AI summary
Aspects of the present disclosure provide methods for wireless communication at a wireless node, generally including detecting, while on a first primary channel, an event related to a second primary channel and performing one or more actions on at least one of the first primary channel or the second primary channel after detecting the event, the performance being based on at least one prioritization rule being satisfied.