Wireless Communication Apparatus for Distance-Based Cooperative Communication
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing interference between multiple access points (APs) using cooperative communication techniques, which can degrade communication performance.
Innovation Solution
A communication apparatus determines the distance between communication apparatuses to decide whether to employ cooperative communication or single-AP schemes, using null steering only when necessary to reduce interference, thereby optimizing communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If null steering is used to reduce interference between communication apparatuses, then interference reduction is achieved, but communication speed and performance deteriorate
Solution Approach 1:
The patent applies dynamics by making the communication scheme selectable and changeable based on real-time conditions. The determining unit selects between cooperative communication and non-cooperative communication schemes dynamically according to distance information, allowing the system to adapt its interference management approach to current operational needs rather than using a fixed null steering method.
Solution Approach 2:
The patent changes the parameter of communication scheme selection based on distance parameters. By using distance information between communication apparatuses as a decision criterion, the system adjusts whether to employ cooperative communication with null steering or standard communication, optimizing the balance between interference reduction and communication performance.
2Productivity
If cooperative communication is executed between multiple APs, then system throughput is improved, but interference management complexity increases
Solution Approach 1:
The patent segments the decision-making process by dividing it into distinct functional units: a determining unit that selects the communication scheme based on distance criteria, and a controlling unit that executes the selected scheme. This segmentation simplifies the overall complexity by creating clear, modular decision logic rather than requiring complex integrated interference management across all APs.
Solution Approach 2:
Each communication apparatus performs autonomous determination of whether to execute cooperative communication based on its own distance measurements and conditions. This self-service approach allows individual apparatuses to make independent decisions about their communication mode, reducing the need for complex centralized coordination and interference management across the entire network.
3Object-affected harmful factors
If null steering is applied to control antenna gain in the direction of a STA, then interference with the STA is suppressed, but signal reception quality deteriorates
Solution Approach 1:
The patent applies preliminary anti-action by using distance information to predict and prevent interference issues before they occur. The determining unit proactively selects the appropriate communication scheme based on measured distances, preventing the need to apply null steering in situations where it would harm reception quality, thereby avoiding the problem rather than reacting to it.
Solution Approach 2:
The system dynamically selects between cooperative and non-cooperative communication modes based on real-time distance conditions. This dynamic selection ensures that null steering is only applied when distance conditions indicate it is safe to do so, automatically adapting to maintain both interference suppression and reception quality according to current spatial relationships.
Data Source
AI summary
A communication apparatus that wirelessly communicates with a partner apparatus performs, based on information related to a distance between another communication apparatus and the partner apparatus, determination of whether to execute cooperative communication of operating to reduce influence of interference between communication between the communication apparatus and the partner apparatus, and communication with the other communication apparatus, and controls communication based on a result of the determination.