Reference Signal Resource Mapping for First-Path Channel Estimation
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Solution Overview
Problem
The accuracy of channel feature estimation, particularly the first path position, is limited due to restricted frequency domain units caused by terminal capability and interference coordination, which affects signal synchronization and temporal resolution.
Innovation Solution
Configuring a frequency domain unit set with associated reference signal resources, establishing an association relationship among these units, and setting preset attributes to improve channel estimation accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the signal bandwidth is increased to improve channel feature estimation accuracy, then the estimation accuracy improves, but terminal capability and interference coordination limitations prevent the use of sufficient continuous frequency domain units
Solution Approach 1:
The patent divides the frequency domain units into multiple groups, where each group can be independently configured and associated with reference signal resources. This segmentation allows the system to work effectively with limited continuous frequency domain units by creating multiple usable configurations from available resources, thereby improving channel feature estimation accuracy without requiring larger continuous bandwidth.
Solution Approach 2:
The patent introduces an association relationship dimension between frequency domain units and reference signal resources. By establishing this additional dimensional relationship, the system can leverage limited frequency domain units more effectively through multiple association configurations, overcoming the limitation of insufficient continuous frequency domain units while maintaining high estimation accuracy.
2Device complexity
If frequency domain units are limited due to terminal capability and interference coordination, then device complexity is reduced, but the bandwidth available for signal estimation is reduced
Solution Approach 1:
The patent creates a universal configuration framework where frequency domain units can be associated with multiple reference signal resources through preset rules or network indication. This multi-functionality allows the same limited frequency domain units to serve multiple estimation purposes, effectively increasing the usable bandwidth without increasing terminal complexity.
Solution Approach 2:
The patent enables dynamic configuration of association relationships between frequency domain units and reference signal resources through network indication. By changing the association parameters based on channel conditions and interference scenarios, the system maximizes the utilization of limited frequency domain units, achieving effective bandwidth expansion without adding terminal complexity.
Data Source
AI summary
Provided are a reference signal resource configuration method and apparatus, a device, and a storage medium. The method includes: configuring a plurality of frequency domain units as a frequency domain unit set, where the frequency domain units are frequency domain resources of a preset frequency segment; configuring a reference signal resource pool corresponding to the frequency domain units, where the reference signal resource pool includes a plurality of reference signal resources, and at least part of the reference signal resources have an association relationship established according to a preset rule or have an association relationship established according to an indication of an association relationship among the frequency domain units; and configuring a preset resource attribute for multiple reference signal resources having an association relationship. The accuracy of estimating a channel feature can be improved by using the reference signal resources for estimating the channel feature.