UE-Initiated CSI Event Reporting for Low-Latency Beam Management

Solution Overview

Problem

Existing wireless communication systems lack efficient mechanisms for UE-initiated event-driven reporting, particularly in 5G/NR systems, which can lead to increased latency and reduced reliability due to suboptimal beam management and channel state information reporting.

Innovation Solution

Implementing a UE-initiated reporting framework that allows user equipment (UE) to autonomously determine and transmit reports based on event evaluation thresholds and reference signals, using various report formats and configurations to enhance beam management and reduce latency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional network-initiated reporting mechanisms are used, then the base station can control reporting timing, but latency increases and reliability decreases due to suboptimal beam management

Engineering Contradiction:

Improvereporting reliabilityVSAvoidlatency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The UE autonomously evaluates events against stored trigger conditions and initiates reporting without waiting for network instructions. The UE self-determines when reporting is needed by comparing current measurements (e.g., RSRP, SINR) against stored thresholds, enabling proactive beam management and reducing latency while maintaining reliability through autonomous decision-making.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The network pre-configures trigger conditions, reporting formats, and evaluation criteria before the UE needs to report. This includes pre-storing event thresholds, report formats, and configuration parameters in the UE, so that when events occur, the UE can immediately evaluate and report without delay, reducing latency while ensuring reliable execution of predetermined reporting protocols.

Inventive Principle:

Principle #10Preliminary action

2Loss of time

If UE autonomously determines reporting based on events, then latency is reduced, but device complexity increases due to event evaluation and threshold comparison mechanisms

Engineering Contradiction:

ImprovelatencyVSAvoidevent evaluation complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The network pre-configures trigger conditions, reporting formats, and evaluation criteria before the UE needs to report. This includes pre-storing event thresholds, report formats, and configuration parameters in the UE, so that when events occur, the UE can immediately evaluate and report without delay, reducing latency while ensuring reliable execution of predetermined reporting protocols.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts reporting behavior by changing parameters such as trigger conditions, evaluation thresholds, and report formats based on network configuration and UE capability. This allows the UE to adapt its event evaluation criteria and reporting parameters to different scenarios, managing complexity through parameterization rather than hardcoding all possible evaluation logic.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If multiple report formats are supported for different events, then adaptability improves, but device complexity increases due to multiple configuration and processing paths

Engineering Contradiction:

Improvereport format adaptabilityVSAvoidconfiguration complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The UE is configured to support multiple report formats (e.g., first report format for beam-related events, second report format for channel state events) within a unified event-driven framework. A single event evaluation mechanism can generate different report formats based on the event type, allowing one processing path to serve multiple reporting needs and reducing overall system complexity while maintaining adaptability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system dynamically adjusts reporting behavior by changing parameters such as trigger conditions, evaluation thresholds, and report formats based on network configuration and UE capability. This allows the UE to adapt its event evaluation criteria and reporting parameters to different scenarios, managing complexity through parameterization rather than hardcoding all possible evaluation logic.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250358664A1Trigger conditions and report formats for event-driven reporting

Publication Date: 2025.11.20 SAMSUNG ELECTRONICS CO LTD

AI summary

Methods and apparatuses for trigger conditions and report formats for event-driven reporting. A method performed by a user equipment (UE) includes transmitting, in a capability signaling of the UE, an indication of support for event evaluation or measurement reporting for UE-initiated (UEI) reporting, receiving, in a channel state information (CSI) report configuration for UEI reporting, information related to an event, and receiving one or more first reference signals (RSs) associated with the CSI report configuration. The method further includes determining a second RS from the one or more first RSs, identifying, based on the information, an event type and an event evaluation threshold, Th_event, determining an event based on the event type, the event evaluation threshold, and the second RS, determining, based on the event, an UEI report including an identifier (ID) of the event, and transmitting the UEI report.