Dynamic Super-Band Operation for Wireless Channel Utilization
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Solution Overview
Problem
Wireless communication systems, such as Wi-Fi, face performance degradation in dense scenarios due to bandwidth inefficiency, particularly in dynamic conditions where existing bandwidth configurations like 320 MHz do not effectively utilize available channels, leading to interference and reduced performance.
Innovation Solution
The method involves non-AP STA devices dynamically determining optimal channels for data transmission based on channel utilization status within the maximum clear channel assessment (CCA) bandwidth, allowing them to link to AP devices with a maximum CCA bandwidth capability, thereby enhancing spectrum utilization and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed 320 MHz bandwidth configuration is used, then bandwidth efficiency is improved, but adaptability to dynamic network conditions deteriorates
Solution Approach 1:
The patent implements dynamic super-band operation that allows the wireless system to dynamically select and switch between different bandwidth configurations (80 MHz, 160 MHz, 320 MHz) based on real-time channel conditions and network density, transforming the fixed bandwidth system into an adaptive one that optimizes performance in varying environments
Solution Approach 2:
The system dynamically changes the operating bandwidth parameter based on detected channel utilization and interference conditions, allowing the same hardware to operate at different bandwidth levels (80/160/320 MHz) to optimize for either high throughput in low-density scenarios or better compatibility and efficiency in high-density scenarios
2Productivity
If wider bandwidth configurations are used, then data transmission capacity is improved, but interference from overlapping basic service sets increases
Solution Approach 1:
The patent employs dynamic bandwidth selection that adjusts the operating bandwidth based on detected OBSS interference levels, allowing the system to operate at wider bandwidths when interference is low and automatically narrow down to 80 MHz or lower when OBSS interference is detected, thereby maintaining high capacity when possible while avoiding interference when necessary
Solution Approach 2:
The system applies different bandwidth operating modes to different spatial and temporal contexts, using wide bandwidth (320 MHz) in low-interference zones and narrow bandwidth (80 MHz) in high-interference zones, optimizing performance locally rather than using a uniform configuration across all conditions
3Adaptability or versatility
If dynamic channel selection is implemented, then spectrum utilization is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic channel and bandwidth selection mechanisms that automatically adjust operating parameters based on real-time CCA results and channel utilization measurements, enabling the system to exploit available spectrum opportunities while maintaining manageable complexity through standardized procedures and protocols
Data Source
AI summary
A method for performing dynamic super-band operation (DSO) in a wireless communication system and associated apparatus are provided, where a plurality of non-access-point stations (non-AP STAs) are wirelessly linking to a first access point (AP) having a maximum clear channel assessment (CCA) bandwidth capability corresponding to a maximum CCA bandwidth, and the non-AP STAs are able to link to the first AP via a plurality of channels within the maximum CCA bandwidth, respectively. The method may include: providing a maximum transceiver bandwidth capability for at least one of the non-AP STAs smaller than the maximum CCA bandwidth capability of the first AP; and dynamically determining a first channel among the plurality of channels for data transmission of the first AP and the at least one of the non-AP STAs, based on channel utilization status of the plurality of channels within the maximum CCA bandwidth.