Reference Signal Resource Differentiation for Interference Measurement
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Solution Overview
Problem
In massive MIMO systems, the overlap of reference signal resource sets for channel measurement and interference measurement leads to inaccurate interference measurement, as it is unclear which reference signals are being measured for interference, affecting beam selection and network performance.
Innovation Solution
A method is introduced to differentiate between reference signal resources for channel and interference measurement by determining distinct sets of reference signal resources and configuring them accordingly, ensuring that interference measurements are taken from specific resource positions that overlap with channel measurement resources, thereby improving measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the same reference signal resource set is used for both channel measurement and interference measurement, then resource overhead is reduced, but measurement precision deteriorates due to unclear identification of interference measurement targets
Solution Approach 1:
The patent divides the reference signal resource set into two distinct segments: a first reference signal resource set for channel measurement and a second reference signal resource set for interference measurement. This segmentation allows clear identification of measurement targets while maintaining efficient resource utilization through proper resource element mapping.
Solution Approach 2:
The patent applies different mapping relationships between resource elements and reference signals for the two measurement types. For channel measurement, resource elements map to channel reference signals, while for interference measurement, resource elements map to interference reference signals. This local differentiation ensures precise measurement functionality without requiring completely separate resource sets.
2Measurement precision
If reference signal resources for channel measurement and interference measurement are completely separated, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent designs a unified reference signal resource set that serves dual purposes through different mapping relationships. The same resource elements can be configured to carry different types of reference signals (channel and interference) based on the measurement type, eliminating the need for completely separate resource sets while maintaining measurement precision.
Solution Approach 2:
The patent introduces a new dimension of resource element mapping to differentiate between channel and interference measurements. Instead of separating resources in time or frequency, the system uses the mapping relationship between resource elements and reference signals as an additional differentiation dimension, allowing one resource set to serve multiple functions.
3Ease of operation
If interference measurement is performed without clear resource differentiation, then ease of operation is improved, but reliability deteriorates due to inaccurate interference measurement results
Solution Approach 1:
The patent introduces resource element mapping relationships as intermediaries between the reference signal resources and the measurement functions. These mapping relationships act as mediators that clearly indicate which reference signals should be measured for channel measurement and which for interference measurement, providing clear operational guidance while ensuring measurement reliability.
Data Source
AI summary
A method for measuring a reference signal, a method for configuring a reference signal resource, and a device are provided. The method for measuring a reference signal includes: determining a first set of reference signal resources for channel measurement and a second set of reference signal resources for interference measurement; performing measurement on a reference signal carried by at least one second reference signal resource in the second set of reference signal resources, to obtain interference corresponding to a first reference signal resource in the first set of reference signal resources, where during measurement on the reference signal carried by the second reference signal resource, if the second reference signal resource overlaps a third reference signal resource in the first set of reference signal resources, a position for measuring the reference signal carried by the second reference signal resource is a resource position corresponding to the third reference signal resource.