Beam Measurement Using Partial Reference Signals and Model Estimation
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Solution Overview
Problem
In beam-based communication systems, existing methods for beam measurement face inaccuracies when there are too few reference signal resources, leading to inaccurate results, and high complexity and power consumption when there are too many, due to insufficient consideration of terminal feedback in configuring reference signal resources.
Innovation Solution
A method where the terminal performs beam measurements on a small number of reference signal resources, inputs the results into a model to estimate results for other resources, and feeds back a subset of the strongest measurements to the network device, optimizing the number of resources needed for accurate beam management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of reference signal resources in the reference signal resource set is increased, then the beam measurement accuracy is improved, but the signaling overhead and terminal measurement complexity increase
Solution Approach 1:
The reference signal resource set is divided into multiple groups, where each group contains a subset of reference signal resources. The terminal performs measurements on resources within its assigned group rather than all resources, reducing measurement complexity while maintaining accuracy through proper group construction that captures essential beam information.
Solution Approach 2:
The terminal performs beam measurements on only a partial subset of the total reference signal resources (specifically, resources within its assigned group) rather than all resources. This partial measurement approach reduces terminal complexity and signaling overhead while the model-based estimation compensates for unmeasured resources to maintain overall measurement accuracy.
2Measurement precision
If the number of reference signal resources in the reference signal resource set is increased, then the beam measurement accuracy is improved, but the signaling overhead increases
Solution Approach 1:
The reference signal resource set is segmented into multiple groups, and the terminal reports measurement results only for resources within its assigned group. This segmentation reduces the amount of measurement result information that needs to be signaled to the network device, thereby reducing signaling overhead while maintaining beam measurement accuracy through appropriate group construction.
Solution Approach 2:
The solution extracts and reports only the essential measurement information from a reduced set of reference signal resources (those within the terminal's assigned group) rather than reporting results for all resources. This extraction approach minimizes signaling overhead by transmitting only the most relevant measurement data needed for beam management.
3Measurement precision
If the number of reference signal resources in the reference signal resource set is increased, then the beam measurement accuracy is improved, but the power consumption of the terminal increases
Solution Approach 1:
The reference signal resource set is segmented into multiple groups, and the terminal is assigned to measure only resources within its specific group. This segmentation reduces the total number of measurements the terminal must perform, thereby reducing power consumption while maintaining beam measurement accuracy through proper group construction that ensures all essential beam directions are covered across groups.
Data Source
AI summary
A beam measurement method includes: receiving first configuration information sent by a network device, wherein the first configuration information is used to configure a first reference signal resource set, and the first reference signal resource set includes a first number of reference signal resources for a beam measurement; performing the beam measurement on the first number of reference signal resources separately; inputting a first number of reference signal resource measurement results that are measured and obtained into a first model to obtain a second number of reference signal resource measurement results, wherein the second number is greater than or equal to the first number; and sending a measurement report including a third number of reference signal resource measurement results to the network device, wherein the third number of reference signal resource measurement results are a subset of the second number of reference signal resource measurement results.