TDD Cell Frame Structure Clustering to Reduce Cross-Slot Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, adjusting frame structures in TDD cells leads to cross-slot interference, deteriorating service performance due to differing frame structures among neighboring cells.
Innovation Solution
A method and apparatus for adjusting frame structures by clustering cells based on correlation degrees, including distance, mutual, and frame structure similarities, and determining load information to align frame structures within cell clusters, avoiding cross-slot interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If frame structures are adjusted to meet individual cell needs, then adaptability is improved, but cross-slot interference increases
Solution Approach 1:
The system segments cells into different clusters based on their frame structure correlation degrees. Cells with high correlation are grouped together and assigned the same frame structure, while cells with low correlation can have different frame structures. This segmentation allows individual cells to have adapted frame structures while preventing cross-slot interference between non-coordinated cells.
Solution Approach 2:
The frame structure correlation degree calculation and clustering mechanism acts as an intermediary that coordinates frame structure assignments across neighboring cells. By calculating correlation degrees and determining appropriate frame structures based on these correlations, the system mediates between individual cell adaptability needs and regional interference prevention requirements.
2Reliability
If frame structures are customized for each cell, then service performance is improved, but system complexity increases
Solution Approach 1:
The system changes the parameter of frame structure configuration from completely independent per-cell customization to cluster-based coordinated configuration. By introducing correlation degree as a new parameter for determining frame structure assignments, the system maintains service performance through adapted frame structures while reducing complexity through standardized cluster assignments.
Solution Approach 2:
The clustering mechanism provides a universal framework that can handle diverse cell requirements. Instead of completely customizing each cell independently, the system uses a universal clustering approach that automatically determines appropriate frame structures based on correlation degrees, reducing configuration complexity while maintaining adaptability.
3Adaptability or versatility
If different frame structures are assigned to neighboring cells, then flexibility is improved, but interference to uplink and downlink transmissions increases
Solution Approach 1:
The system segments the network into clusters where cells within each cluster share the same frame structure. This segmentation ensures that neighboring cells with high correlation degrees use identical frame structures, preventing cross-slot interference while still allowing different clusters to use different frame structures for flexibility.
Solution Approach 2:
Within each cluster, cells are made equipotential by assigning them the same frame structure. This creates a coordinated environment where neighboring cells operate on the same timing framework, eliminating the potential for cross-slot interference that would arise from asymmetric frame structure assignments.
Data Source
AI summary
Embodiments of the present application relate to the technical field of communication, and provide a method and an apparatus for adjusting a frame structure, an electronic device, and a storage medium. The method for adjusting the frame structure includes: obtaining a correlation degree of the frame structure among each of target cells, where the correlation degree of the frame structure includes information representing mutual relation and/or frame structure requirements of each of the target cells; clustering the target cells according to the correlation degree of the frame structure to obtain several cell clusters; and determining a frame structure corresponding to each cell cluster according to uplink load information and downlink load information of the target cells in the cell cluster, to adjust a frame structure of each of the target cells in the cell cluster according to the frame structure corresponding to each cell cluster.