Coordinated Multipoint RRM Measurement via CSI-RS Segmentation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing radio resources and reporting measurement results, particularly in coordinated multipoint (CoMP) transmission scenarios, which affect the performance and reliability of LTE wireless broadband networks.
Innovation Solution
The implementation of methods and systems for measurement reporting by user equipment (UE) and evolved Node B (eNB) that utilize channel state information reference signals (CSI-RS) to enhance CoMP radio resource management, allowing for more accurate channel measurements and improved resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If coordinated multipoint (CoMP) transmission is implemented to improve data transmission rates and service quality, then uplink and downlink performance is enhanced, but the complexity of radio resource management and measurement reporting increases
Solution Approach 1:
The patent segments the measurement reporting process by introducing separate measurement sets (RRM measurement set and CoMP measurement set) with distinct purposes. The RRM measurement set handles traditional radio resource management while the CoMP measurement set specifically handles coordinated multipoint transmission measurements. This segmentation allows each set to be optimized independently, reducing the overall complexity of managing measurements for CoMP transmission.
Solution Approach 2:
The patent introduces an intermediary mechanism through the measurement configuration message that carries measurement set identities and associations. This intermediary structure enables the network to efficiently manage and coordinate multiple measurement sets without requiring complex direct management of all measurement parameters, thereby reducing RRM complexity while maintaining CoMP performance benefits.
2Measurement precision
If detailed channel state information measurement is performed to improve service quality consistency, then measurement precision is enhanced, but the quantity of measurement data and processing requirements increase
Solution Approach 1:
The patent applies local quality by assigning different measurement configurations to different measurement sets based on their specific purposes. The CoMP measurement set uses CSI-RS based measurements with specific configurations optimized for CoMP transmission, while the RRM measurement set uses traditional measurements. This localized optimization ensures high measurement precision where needed without uniformly increasing measurement data volume across all functions.
Solution Approach 2:
By segmenting measurements into different sets with different configurations, the patent reduces the total quantity of measurement data required. Each measurement set contains only the measurements necessary for its specific function, avoiding redundant measurements and processing requirements while maintaining high precision for channel state information where it is most critical for CoMP transmission.
Data Source
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AI summary
A method for measurement reporting is described. A measurement configuration is received from an evolved NodeB (eNB). The measurement configuration includes a single measurement object in a carrier frequency. A measurement report for a channel state information reference signal (CSI-RS) is generated based on the measurement configuration. The measurement report is sent to the eNB.