Dynamic Sub-Band Selection Using AP Traffic Assistance
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Solution Overview
Problem
Wireless communication networks face challenges in efficiently managing dynamic sub-band operations due to sub-bands being used without consideration for local conditions or traffic, leading to potential inefficiencies and increased latency.
Innovation Solution
Access points provide dynamic sub-band operation information to stations, including which stations are associated with each sub-band and recommendations for sub-band selection, allowing stations to make informed choices based on real-time traffic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If sub-bands are used without consideration for local conditions or traffic, then device complexity is reduced, but communication efficiency and resource utilization deteriorate
Solution Approach 1:
The access point transmits dynamic sub-band operation assistance information to stations, providing feedback about current sub-band usage and traffic conditions. This enables stations to make informed sub-band selections that improve communication efficiency while maintaining manageable system complexity through centralized information management.
Solution Approach 2:
The access point acts as an intermediary that collects traffic condition information and formulates assistance information about sub-band usage. This intermediary role allows the system to achieve efficient resource utilization without requiring complex distributed decision-making among stations.
2Loss of information
If stations make sub-band selections without real-time traffic information, then information overhead is reduced, but latency increases due to sub-optimal selections
Solution Approach 1:
The access point proactively transmits dynamic sub-band operation assistance information to stations before stations need to make sub-band selections. This preliminary provision of traffic condition information enables stations to make optimal selections without incurring additional latency, while the information overhead is managed through efficient encoding and selective transmission.
Data Source
AI summary
This disclosure provides methods, components, devices and systems for dynamic sub-band operation information. Some aspects more specifically relate to transmission of information from APs to STAs to aid in DSO sub-band selection. For example, such information may indicate a quantity of clients that have selected each DSO sub-band, a quantity of clients that have selected each DSO sub-band and are actively communicating, a rolling average of active STAs on each DSO sub-band, a recommendation of one or more DSO sub-bands, or any combination thereof. In some examples, such information may be provided on a more narrow basis (such as on a per-20 MHz subchannel basis or other individual sub-band basis) or on a broader basis (such as on a per-80 MHz subchannel basis or a group basis, such as on a per-group of sub-band basis).