Reference Signal Configuration in 5G LMF
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G and beyond, face challenges in efficiently managing reference signals across cells, leading to suboptimal network performance and increased overhead in signal reconfiguration and processing burdens.
Innovation Solution
A method is introduced where the Location Management Function (LMF) in a communication system requests and receives reference signal configuration information from serving and neighboring base stations, allowing for inter-cell reference signal configuration and resource management, enabling flexible reference signal configuration and reservation based on available resources and user equipment identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If reference signal configuration is managed separately for each cell, then each cell can be optimized independently, but network overhead and processing burden increase significantly
Solution Approach 1:
The patent merges reference signal configuration management across multiple cells by introducing a unified configuration framework where a single reference signal configuration can be applied to multiple cells simultaneously. The LMF receives configuration information from multiple base stations and processes them through a unified mechanism, reducing redundant configuration overhead while maintaining cell-specific optimization capabilities through selective application of configurations.
Solution Approach 2:
The patent creates universal reference signal configuration objects that can serve multiple cells with different characteristics. The configuration framework enables a single reference signal configuration to be universally applied across multiple cells, with the ability to selectively activate or modify specific parameters for individual cells based on their unique requirements, thereby reducing overall network overhead while maintaining adaptability.
2Reliability
If reference signal reconfiguration is performed frequently to adapt to changing network conditions, then network performance is improved, but reconfiguration overhead increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring reference signal parameters and validity area information before actual reconfiguration is needed. The LMF receives and processes configuration information from base stations in advance, preparing optimized reference signal configurations that can be quickly deployed when network conditions change, thereby reducing the time and overhead associated with frequent reconfigurations.
Solution Approach 2:
The patent applies local quality by introducing validity area information that specifies where and when particular reference signal configurations should be applied. This enables selective reconfiguration only in specific geographic areas or for specific user equipment, rather than performing network-wide reconfigurations, thereby reducing overall reconfiguration overhead while maintaining performance where needed.
3Adaptability or versatility
If multiple reference signal configurations are maintained for different cells, then configuration flexibility is improved, but resource utilization becomes inefficient
Solution Approach 1:
The patent merges multiple cell-specific reference signal configurations into a unified configuration structure managed by the LMF. By consolidating configuration management and enabling shared reference signal configurations across multiple cells, the system reduces redundant resource allocation while maintaining the flexibility to apply different configurations to different cells through selective activation and validity area specifications.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure provides a method performed by location management function (LMF) in a communication system, the method comprising: transmitting, to a serving base station, a first request message for an area-specific reference signal configuration; and receiving, from the serving base station, a first response message including reference signal configuration information; wherein the reference signal configuration information includes: at least one reference signal configuration and validity area related information corresponding to the reference signal configuration.