Base Station Interference Control via Beam Index Sharing
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Solution Overview
Problem
In high-density cell environments, existing clustering techniques are inefficient in managing interference between base stations in flexible duplex systems, particularly in 5G communication systems, due to difficulties in forming clusters and effectively allocating resources.
Innovation Solution
The method involves determining and sharing beam indexes and frequency resources between base stations to minimize interference, using beamforming information and interference tables to optimize communication, allowing base stations to adjust their uplink and downlink operations dynamically based on shared data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If clustering technique is used to manage inter-base station interference, then interference control is improved, but cluster formation becomes difficult in high-density cell environments
Solution Approach 1:
The patent segments the base station network into groups based on beam direction and interference characteristics rather than traditional geographic clustering. Each base station is assigned to a group according to its beam index and interference table, enabling systematic organization even in high-density environments where traditional clustering fails.
Solution Approach 2:
The patent changes the clustering parameter from geographic location to beam index and interference characteristics. By using beam index information and interference tables, the system can form groups based on directional and interference-based parameters, which remain valid and manageable even when base stations are densely deployed.
2Adaptability or versatility
If flexible duplex system configures uplink and downlink for each base station, then traffic characteristic adaptation is improved, but inter-base station interference increases
Solution Approach 1:
The patent implements a feedback mechanism where each base station transmits its beam index and interference table to neighboring base stations. This feedback enables coordinated resource allocation where base stations adjust their uplink/downlink configurations based on real-time interference information, maintaining adaptability while controlling interference.
Solution Approach 2:
The patent introduces an intermediary coordination mechanism using beam index information and interference tables as mediators between base stations. These intermediaries enable flexible duplex configuration while managing interference through standardized information exchange and coordinated resource allocation protocols.
3Productivity
If beamforming and resource allocation are optimized using shared beam index information, then resource allocation efficiency is improved, but information exchange complexity increases
Solution Approach 1:
The patent creates a universal information structure (beam index and interference table format) that serves multiple functions: identifying base stations, determining beam directions, calculating interference levels, and coordinating resource allocation. This multi-functional approach improves efficiency while managing complexity through standardization.
Solution Approach 2:
The patent simplifies information exchange by changing to standardized parameters (beam index and interference table) that compactly encode complex interference relationships. This parameter transformation reduces the complexity of information exchange while maintaining comprehensive resource allocation optimization capabilities.
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An operating method for controlling interference between base stations in a wireless communication system includes determining at least one or more beam indexes of a first base station, receiving resource information of a second base station from the second base station, determining a frequency resource of the first base station, based on the at least one or more beam indexes of the first base station and the resource information of the second base station, and communicating with a user equipment, using information about the determined frequency resource of the first base station.