Access Node Clustering for CoMP via Spatial Separation

The patent applies local quality by forming clusters based on spatial separation metrics that are specific to local conditions at cell edges. The cluster formation process evaluates signal quality and interference characteristics locally at each cell edge region, allowing clusters to be optimized for their specific geographic and radio environment conditions rather than applying a uniform cluster formation approach across the entire network.

The patent changes parameters by introducing spatial separation metrics and signal quality thresholds as key parameters for cluster formation. The system dynamically adjusts cluster membership based on measured parameters such as reference signal received power (RSRP), interference levels, and spatial distance between access nodes and user equipment, allowing clusters to adapt to changing network conditions and optimize service quality at cell edges.

The patent applies segmentation by dividing the network into multiple smaller clusters based on spatial separation criteria. Instead of forming one large cluster that would require excessive computational resources, the system segments access nodes into multiple manageable clusters, each serving specific geographic regions or user groups. This segmentation reduces the computational burden on each cluster while maintaining overall network coverage and throughput through coordinated operation of multiple clusters.

The patent applies partial action by forming clusters that include only those access nodes that meet specific spatial separation and signal quality criteria, rather than including all available access nodes in each cluster. This selective clustering approach ensures that clusters are large enough to provide improved coverage and throughput, but not so large that they consume excessive computational resources. The system performs partial coordination among access nodes based on current network conditions and user requirements.

The patent converts the harmful effect of interference into a benefit by using interference measurements as a criterion for cluster formation. Access nodes that would normally interfere with each other are grouped together in the same cluster, allowing the network to coordinate their transmissions and receptions. The interference that would otherwise degrade service quality is transformed into an opportunity for coordinated multipoint operation, where the interfering access nodes work together to serve user equipment, improving overall service quality at cell edges.

The patent applies merging by combining multiple access nodes that experience mutual interference into single coordinated clusters. Instead of treating interfering access nodes as separate entities that compete for resources, the system merges them into unified clusters that perform coordinated transmission and reception. This merging allows the network to exploit the spatial relationships between interfering access nodes and user equipment, transforming interference into a resource that can be used for improved coverage and capacity.