Communication Control Device Grouping Nodes to Manage Interference
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Solution Overview
Problem
Existing communication systems face challenges in optimizing the utilization of frequency channels due to interference from primary and secondary communication nodes, leading to reduced communication capacity and quality, especially when dealing with a large number of communication nodes and frequency channel candidates, which results in significant computational complexity.
Innovation Solution
A communication control device and method that acquires interference information from both control and non-control target communication nodes to classify them into groups, allowing for the decision of radio resources, thereby optimizing frequency channel utilization and reducing computational complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a communication node tries to utilize a frequency channel utilized by the main user, then the communication capacity can be increased, but interference from the main user occurs and communication quality decreases
Solution Approach 1:
The patent introduces a communication control device as an intermediary between communication nodes and frequency channels. This device acquires interference information from both control target and non-control target communication nodes, then classifies communication nodes into groups to manage frequency channel allocation. The control device mediates the conflict by preventing direct access to channels with high interference from main users while enabling access to channels with acceptable interference levels, thus increasing communication capacity without suffering from harmful interference.
2Reliability
If full search for combinations of communication nodes and frequency channel candidates is performed to optimize resource allocation, then communication quality can be improved, but calculation amount becomes enormous
Solution Approach 1:
The patent segments the set of communication nodes into multiple groups based on interference information. Instead of performing full search over all possible combinations of communication nodes and frequency channels, the control device classifies nodes into groups and allocates frequency channels to each group separately. This segmentation reduces the search space from exponential to polynomial complexity, significantly reducing calculation amount while still achieving optimized resource allocation and maintaining communication quality.
3Productivity
If frequency channels are allocated without considering interference from control target communication nodes, then resource utilization can be improved, but communication quality decreases due to interference
Solution Approach 1:
The patent implements a feedback mechanism where the communication control device continuously acquires interference information from both control target and non-control target communication nodes. This interference information serves as feedback that guides the frequency channel allocation process. The control device uses this feedback to dynamically adjust channel assignments, ensuring that resources are utilized efficiently while communication quality is maintained by avoiding allocations that would result in harmful interference.
Data Source
AI summary
A communication control device that acquires first interference information indicating a first interference from communication involving a communication node that is not controlled by the communication control device and second interference information indicating a second interference from communication involving another communication node that is controlled by the communication control device. The communication control device classifies the communication nodes into groups related to a decision of a radio resource that is available for use by a communication node based on the first interference information and the second interference information.