Radio Control Apparatus Dynamic Interference Suppression
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Solution Overview
Problem
In radio communication systems with distributed transmission/reception points, coordinated beamforming struggles to achieve high throughput due to limitations in suppressing interference, leading to reduced data signal transmission when the number of radio terminals or antennas increases.
Innovation Solution
A control apparatus that determines reception weight matrices for data signals and calculates transmission weight matrices to suppress interference effectively, allowing for efficient allocation of channels and increased data signal transmission by adjusting the number of channels for interference suppression based on the number of antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the number of channels for interference suppression is increased to handle more radio terminals or antennas, then interference suppression capability is improved, but the number of data signals that can be transmitted decreases
Solution Approach 1:
The patent changes the parameter of interference suppression from suppressing all antenna channels to selectively suppressing only the necessary number of channels based on actual interference conditions. The base station dynamically adjusts the number of suppression channels according to the number of interfering radio terminals and their antenna configurations, rather than using a fixed rule that suppresses channels equal to the maximum antenna count.
Solution Approach 2:
Instead of applying full interference suppression across all potential channels (excessive action), the patent applies partial suppression only to the specific channels where interference actually occurs. This avoids the waste of suppressing channels that do not require suppression, thereby preserving more channels for data transmission.
2Reliability
If coordinated beamforming is used to suppress interference from other transmission/reception points, then communication quality is improved, but the number of transmittable data signals is reduced due to channel allocation constraints
Solution Approach 1:
The patent changes the parameter of channel suppression from a static value (equal to the number of antennas) to a dynamic value that adapts to the actual interference environment. By calculating the necessary suppression channels based on the number of interfering terminals and their antenna configurations, the system maintains communication quality while optimizing the number of available channels for data transmission.
3Adaptability or versatility
If the number of radio terminals communicating with other transmission/reception points increases, then network coverage and connectivity are improved, but the number of channels available for data transmission decreases
Solution Approach 1:
The patent introduces dynamic adjustment of the number of suppression channels based on the actual number of interfering radio terminals. As the network accommodates more terminals (improving connectivity), the system dynamically calculates and adjusts the suppression channel count to match the actual interference level, rather than using a fixed conservative estimate. This allows the system to adapt to changing network conditions while maintaining optimal data transmission capacity.
Data Source
AI summary
A control apparatus includes a determination unit configured to determine first and second reception weight matrixes by using first and second channel matrixes between first and second radio apparatuses and the first and second terminals, a first calculation unit configured to calculate a data channel matrix of a data signal transmitted from the first radio apparatus to the first terminal by using the first channel matrix and the first reception weight matrix, a second calculation unit configured to calculate an interference channel matrix of interference to the second terminal caused by the first radio apparatus by using a third channel matrix between the first radio apparatus and the second terminal and the second reception weight matrix, and a third calculation unit configured to calculate a transmission weight matrix for transmitting a data signal so that the interference is suppressed by using the data channel matrix and the interference channel matrix.