Wireless Beam Measurement Grouping for Signal Quality Optimization
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Solution Overview
Problem
In wireless communication systems, especially for next-generation mobile communication, the challenge is to efficiently manage multiple signal reception devices with varying reception signal qualities, requiring different transmission and reception beam combinations for optimal performance, which existing technologies struggle to address effectively.
Innovation Solution
A method for a User Equipment (UE) to perform beam measurement and reporting, grouping reception beams based on beam properties and configuration information received from a base station, and reporting transmission and reception beam indices for each beam group to optimize beam combinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple signal reception devices are installed in distributed manner to improve MIMO performance, then reception signal quality is improved, but device complexity increases due to requiring different transmission and reception beam combinations for each reception device
Solution Approach 1:
The patent segments reception beams into multiple reception beam groups, where each group can be independently associated with transmission beams. This segmentation allows the system to manage beam combinations in a structured manner, reducing the complexity of managing multiple distributed reception devices while maintaining improved reception signal quality through selective beam pairing.
Solution Approach 2:
The patent introduces a new dimension of organization by grouping reception beams rather than managing them individually. This dimensional change from individual beam management to group-based management simplifies the complexity associated with multiple distributed reception devices while preserving the MIMO performance benefits.
2Productivity
If different transmission and reception beam combinations are requested for each signal reception device to optimize performance, then signal reception efficiency is improved, but measurement and reporting overhead increases
Solution Approach 1:
The patent merges multiple reception beams into reception beam groups, where beams within the same group share common measurement and reporting procedures. This merging reduces the measurement and reporting overhead while still enabling optimized transmission and reception beam combinations for each signal reception device, thus maintaining signal reception efficiency.
Solution Approach 2:
The reception beam groups serve multiple functions: they enable beam measurement, facilitate reporting overhead reduction, and support transmission beam identification. This multi-functionality reduces the overall system complexity while maintaining the ability to optimize beam combinations for each reception device.
3Measurement precision
If beam measurement is performed for each reception beam to identify optimal transmission beams, then beam matching accuracy is improved, but measurement time and signaling overhead increase
Solution Approach 1:
The patent segments the measurement process by performing beam measurements at the reception beam group level rather than for each individual reception beam. This segmentation maintains beam matching accuracy by preserving the association between reception beam groups and transmission beams while significantly reducing the time and signaling overhead required for measurements.
Solution Approach 2:
The patent performs measurements partially at the group level rather than exhaustively for each individual beam. This partial action approach maintains sufficient beam matching accuracy for practical purposes while dramatically reducing the measurement and reporting time, representing a practical compromise between precision and efficiency.
Data Source
AI summary
The present invention provides a method for performing beam measurement in a wireless communication system, and a device for the method. Particularly, a method for a terminal to perform beam measurement in a wireless communication system may comprise: a step of receiving a plurality of reference signals corresponding to a plurality of transmission beams; a step of identifying at least one first transmission beam corresponding to at least one first reception beam included in a first reception beam group, on the basis of measurement performed on the first reception beam group by using the plurality of reference signals; a step of identifying at least one second transmission beam corresponding to at least one second reception beam included in a second reception beam group, on the basis of measurement performed on the second beam group by using the plurality of reference signals; and a step of reporting, to a base station, an index of the identified at least one first transmission beam and an index of the identified at least one second transmission beam, respectively.