Cluster-Specific Reference Signal Configuration for Wireless Interference Control
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting and receiving reference signals, particularly in dynamically changing cluster configurations, which affects system capacity and interference control in multi-cell environments.
Innovation Solution
The system determines and transmits cluster-specific reference signal configurations, including resource allocation, offset, period, and index, to manage reference signals across clusters, enabling dynamic cluster configuration and interference control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a virtual cell network with dynamically changed cell configuration is deployed to optimize frequency resource use efficiency, then system adaptability and resource utilization are improved, but the complexity of transmitting and receiving control signals increases
Solution Approach 1:
The patent segments the cell-specific reference signal into cluster-specific reference signals, where each cluster (virtual cell) has its own dedicated reference signal. This segmentation allows independent configuration and transmission for each virtual cell, simplifying the control signal transmission mechanism while maintaining the flexibility of dynamic cell configuration. The base station determines cluster-specific reference signal configurations and transmits them to user terminals, enabling efficient resource allocation across multiple virtual cells without increasing overall system complexity.
2Object-generated harmful factors
If cluster configuration is dynamically changed to optimize interference control, then interference management capability is improved, but reference signal transmission efficiency deteriorates
Solution Approach 1:
The patent implements dynamic cluster configuration where the base station can change cluster assignments of user terminals based on real-time interference conditions. The system dynamically determines cluster-specific reference signal configurations and transmits updated configurations to user terminals. This dynamic approach allows the system to adapt to changing interference landscapes while maintaining efficient reference signal transmission through structured configuration management, resolving the contradiction between interference control flexibility and transmission efficiency.
3Productivity
If multiple cluster-specific reference signals are transmitted simultaneously to support dynamic cluster configuration, then system capacity and interference control are improved, but resource region allocation complexity increases
Solution Approach 1:
The patent assigns different reference signal configurations to different clusters based on their specific characteristics and requirements. Each cluster receives customized reference signal parameters including resource region, offset, period, and index, allowing optimized performance for each cluster's specific interference profile and user terminal distribution. This localized customization enables the system to handle multiple clusters simultaneously with high capacity while managing resource allocation complexity through structured, cluster-specific configuration rather than uniform treatment.
Data Source
AI summary
An apparatus and a method for transmitting and receiving a reference signal in a wireless communication system are provided. The method includes determining a cluster-specific reference signal configuration according a cluster configuration, transmitting information about the cluster-specific reference signal configuration, and transmitting cluster-specific reference signals of at least one cluster according to the cluster-specific reference signal configuration.