Wireless Channel Bonding via Bandwidth Segmentation
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Solution Overview
Problem
Current wireless communication technologies lack an effective solution for multi-channel operations, particularly in unlicensed frequency bands, which hinders the achievement of wideband access and leads to issues like co-channel collisions and inefficient channel utilization.
Innovation Solution
A method where a network device divides the wireless system bandwidth into non-overlapping bandwidth ranges for channel bonding, allocates these ranges for communication, and determines a primary channel based on communication with neighboring devices and traffic loads to avoid collisions and optimize channel access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multi-channel operation is performed to support wider bandwidth, then channel bandwidth utilization is improved, but co-channel collisions increase and channel access becomes more complex
Solution Approach 1:
The patent segments the available channels into multiple bandwidth ranges (e.g., 20MHz, 40MHz, 80MHz, 160MHz) and further divides them into sub-channels. This segmentation allows the system to manage wide bandwidth by treating different bandwidth ranges as separate entities with independent access control, thereby reducing co-channel collisions while maintaining high bandwidth utilization.
Solution Approach 2:
The patent implements dynamic channel selection and bandwidth adjustment based on real-time channel conditions and traffic requirements. The system can dynamically switch between different bandwidth ranges and select optimal channels, enabling adaptive channel access that avoids collisions while maximizing bandwidth usage according to current network conditions.
2Productivity
If dynamic bandwidth allocation is implemented to optimize channel access, then channel utilization is improved, but system complexity increases
Solution Approach 1:
The patent performs preliminary channel assessment and bandwidth range determination before actual data transmission. The system pre-evaluates channel conditions, selects appropriate bandwidth ranges, and establishes channel access parameters in advance, thereby simplifying the actual transmission process while optimizing channel utilization through proactive rather than reactive management.
Solution Approach 2:
The patent implements feedback mechanisms where the base station monitors channel conditions, transmission success, and traffic patterns, then adjusts bandwidth allocation and channel selection accordingly. This feedback loop enables continuous optimization of channel utilization while managing complexity through automated adaptive control based on real-time performance data.
3Productivity
If channel bonding is performed across multiple bandwidth ranges, then throughput is improved, but coordination requirements increase
Solution Approach 1:
The patent segments channel bonding into discrete bandwidth ranges (20MHz, 40MHz, 80MHz, 160MHz) that can be independently managed and bonded. This segmentation simplifies coordination by allowing the system to combine predefined bandwidth units rather than managing continuous spectrum, thereby reducing coordination complexity while achieving high throughput through effective channel bonding.
Data Source
AI summary
The method implemented at a network device includes dividing a wireless system bandwidth into a plurality of non-overlapping bandwidth ranges each including a plurality of operating channels available for channel bonding. The method also includes allocating one of the plurality of bandwidth ranges for a wireless communication between the network device and a terminal device served by the network device. The method further includes determining, from the plurality of operating channels for the bandwidth range, one operating channel as a primary channel of the wireless communication. Embodiments of the present disclosure also provide a corresponding network device, a method implemented at a terminal device and a corresponding terminal device, and a non-transitory computer-readable medium.