UE Receive Beam Feedback for Low-Overhead NR Scheduling
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Solution Overview
Problem
Conventional beam management procedures in 3GPP New Radio (NR) are resource-intensive and inflexible, leading to excessive signaling overhead and suboptimal scheduling decisions due to lack of improved feedback and flexible control over beam-related parameters.
Innovation Solution
The introduction of enhanced beam management procedures that allow User Equipment (UE) to determine and report specific parameters characterizing its receive beams, such as robustness indicators, enabling more efficient resource utilization and reduced signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional beam management procedures are used, then beam management can be performed with pre-defined rules, but resource consumption and signaling overhead increase
Solution Approach 1:
The patent extracts only the necessary beam management information (beam ID and robustness indicator) from the full measurement data, transmitting only this essential subset to the network. This reduces signaling overhead while maintaining the core functionality of beam management, directly addressing the contradiction between ease of implementation and resource consumption.
Solution Approach 2:
Instead of transmitting complete measurement data for all reference signals, the patent applies partial action by selecting and reporting only the top N beams with their key characteristics. This partial reporting approach reduces signaling overhead significantly while providing sufficient information for network scheduling decisions.
2Adaptability or versatility
If conventional beam management procedures are used, then procedures can be standardized, but flexibility and control over beam parameters decrease
Solution Approach 1:
The patent introduces dynamic adaptability by allowing the network to configure the number of beams to report (N) and the types of robustness indicators to be measured. This dynamic configuration enables the system to adapt to different deployment scenarios and channel conditions while maintaining a relatively simple standardized procedure framework.
Solution Approach 2:
The patent changes the parameter set from conventional fixed beam reporting to flexible beam reporting with configurable parameters including the number of beams to report, types of robustness indicators (time-based, frequency-based, spatial), and measurement configurations. This parameter flexibility resolves the contradiction between adaptability and procedure complexity.
3Measurement precision
If detailed beam feedback is provided to gNB, then scheduling decisions improve, but signaling overhead increases
Solution Approach 1:
The patent extracts only the most critical beam information (beam ID and robustness indicator) from complete measurement data, transmitting this essential subset to the gNB. This extraction approach provides sufficient feedback accuracy for scheduling decisions while significantly reducing signaling overhead compared to transmitting full measurement datasets.
Solution Approach 2:
The patent applies local quality by providing detailed robustness indicator information specifically for the top N selected beams rather than all measured beams. This localized detailed feedback focuses resources on the most relevant beams for scheduling decisions, achieving high feedback accuracy where needed while minimizing overall signaling overhead.
Data Source
AI summary
According to various examples, there is provided a User Equipment, UE, comprising means for: receiving an indication of a type of parameter to be reported by the UE, wherein the type of parameter characterises one or more receive, Rx, of the UE via which one or more Reference Signals, RSs, are received; determining one or more values of the indicated type of parameter for at least one of the one or more RSs received by at least one of the one or more Rx beams of the UE; and sending information indicative of the determined one or more values of the indicated type of parameter for the at least one of the one or more RSs received by the at least one of the one or more Rx beams of the UE.