Dynamic Channel Width Adjustment in Wireless Networks
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Solution Overview
Problem
Current wireless communication networks lack the ability to dynamically adjust channel widths and identify suitable carrier bandwidths for efficient data transmission, leading to inflexibility and suboptimal performance in channel utilization.
Innovation Solution
A device and method that determine quality indicators for channels, combine adjacent channels with meeting requirements into wider channels, and perform a listen before talk (LBT) operation to assess and utilize available bandwidths dynamically, allowing for efficient channel bonding and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed carrier bandwidths are used in current wireless communication networks, then device complexity is reduced and ease of operation is improved, but adaptability and bandwidth utilization efficiency deteriorate
Solution Approach 1:
The patent implements dynamic channel width adjustment by allowing the system to adaptively select and combine multiple component carriers with different bandwidths based on current network conditions and quality indicators, transforming the static fixed-bandwidth approach into a dynamic adaptive system that optimizes bandwidth utilization in real-time
Solution Approach 2:
The patent segments the frequency spectrum into multiple component carriers with predefined bandwidths (e.g., 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 20 MHz), allowing the system to selectively combine these segmented carriers to form aggregated carriers with flexible total bandwidths, thereby achieving adaptability without requiring a complete redesign of the carrier structure
2Productivity
If multiple adjacent channels are combined into wider channels, then bandwidth utilization and data transmission efficiency are improved, but the complexity of channel assessment and LBT operation increases
Solution Approach 1:
The patent performs preliminary quality indicator determination for each component carrier before channel bonding, assessing channel quality, interference levels, and suitability for aggregation in advance. This preliminary assessment allows the system to pre-identify suitable component carriers for combination, simplifying the subsequent LBT operation and reducing the complexity of real-time channel assessment during data transmission
Solution Approach 2:
The patent merges multiple adjacent component carriers into aggregated carriers with wider bandwidths to improve data transmission efficiency. By combining carriers that have been pre-assessed for compatibility and quality, the system achieves higher productivity while managing complexity through systematic combination rules and quality-based selection criteria
Data Source
AI summary
The disclosure pertains to determining a channel width of a channel in a wireless communication network. An aspect is directed to a device (1200, 1300) configured to determine a quality indicator for each of a plurality of channels, determine, from the plurality of channels, a first subset of channels, the quality indicators of which meeting a first requirement, combine at least two adjacent channels of the first subset of channels to a combined channel, and perform a listen before talk, LBT, operation in the combined channel. Further aspects of the disclosure pertain to a further device for determining a channel width of a channel used in a wireless communication network, methods (1100, 1700), computer programs, and computer-readable recording media.