UE-Initiated CSI Reporting for Dynamic Uplink Resource Allocation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing channel state information (CSI) reporting due to lack of UE-initiated requests, leading to suboptimal resource allocation and potential link failures, especially in high-frequency bands like mmWave where channel conditions can change rapidly.

Innovation Solution

Implementing UE-initiated CSI reporting mechanisms, where user equipment (UE) proactively requests and transmits CSI reports through two-part UCI, allowing for dynamic resource allocation and improved network awareness of channel conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If UE-initiated CSI reporting is implemented, then resource allocation efficiency is improved and link failures are reduced, but device complexity and signaling overhead increase

Engineering Contradiction:

Improvelink failure reductionVSAvoidUE processing complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The UE autonomously initiates CSI reporting when it detects deteriorating channel conditions, without requiring continuous network scheduling or triggering. This self-service mechanism allows the UE to independently monitor channel quality and trigger reports only when necessary, reducing reliance on network coordination while improving link reliability through timely feedback.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The UE performs preliminary channel quality assessment and proactively triggers CSI reporting before link failures occur. By monitoring channel conditions continuously and initiating reports in advance when degradation is detected, the system enables the network to take preventive actions before actual link failures happen, improving overall reliability.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If UE-initiated CSI reporting is implemented, then resource allocation efficiency is improved, but signaling overhead and uplink channel usage increase

Engineering Contradiction:

Improveresource allocation efficiencyVSAvoiduplink signaling overhead

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

Instead of continuous or network-triggered periodic reporting, the system uses event-driven periodic action where CSI reports are transmitted only when channel conditions change significantly. This approach maintains resource allocation efficiency by ensuring reports are sent at meaningful intervals while reducing unnecessary signaling overhead compared to traditional periodic schemes.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The CSI reporting parameters such as trigger thresholds, reporting intervals, and payload content are dynamically adjusted based on channel conditions and UE capabilities. This allows the system to optimize the balance between resource allocation efficiency and signaling overhead by adapting report frequency and detail to actual network needs rather than using fixed parameters.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20260059370A1UE-initiated csi

Publication Date: 2026.02.26 SAMSUNG ELECTRONICS CO LTD

AI summary

Apparatuses and methods for user equipment (UE)-initiated channel state information (CSI). A method performed by a UE includes transmitting, via a first uplink (UL) channel in a first slot, a UE initiated (UEI) request for a CSI report and a CSI-related info indicating information about a payload of the CSI report. The method further includes determining the CSI report and transmitting the CSI report via a second UL channel in a second slot.