UE Channel State Information Reporting Suspension

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Solution Overview

Problem

Current wireless communication systems, particularly in 5G NR, face inefficiencies in channel reporting management, leading to increased uplink overhead, interference, and power consumption due to frequent reporting of channel measurement information by user equipment (UE) to base stations.

Innovation Solution

A method where the UE predicts channel measurements based on historic data and suspends reporting when changes are minimal, transmitting a report suspension message to the base station, thereby reducing unnecessary reporting and conserving resources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the UE frequently reports channel measurement information to the base station, then the base station can maintain accurate channel state information for scheduling decisions, but the uplink overhead and interference increase

Engineering Contradiction:

Improvechannel state information accuracyVSAvoiduplink overhead

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent extracts only the essential reporting function by allowing the UE to suspend reporting when channel conditions are stable and predicted values are sufficient. This selective extraction of reporting occasions reduces uplink overhead while maintaining necessary channel state information accuracy for scheduling decisions.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The reporting frequency is made dynamic rather than static. The UE adapts its reporting behavior based on channel variability and predicted values, suspending reports during stable conditions and resuming when changes exceed thresholds. This dynamic adjustment resolves the contradiction between maintaining accuracy and reducing overhead.

Inventive Principle:

Principle #15Dynamics

2Reliability

Engineering Contradiction:

Improvechannel state information accuracyVSAvoidinterference

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent removes unnecessary reporting transmissions that contribute to interference. By extracting only the essential reporting occasions and suspending reports during stable channel conditions, the solution reduces interference with other UEs while preserving channel state information accuracy when needed.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

Engineering Contradiction:

Improvechannel state information accuracyVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The UE dynamically adjusts its reporting activity based on channel conditions and predicted values. During stable periods, the UE suspends reporting to conserve battery power. When channel changes exceed thresholds or variability increases, the UE resumes reporting to maintain accuracy. This dynamic behavior resolves the contradiction between reliability and power consumption.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The UE performs preliminary prediction of channel values before actual reporting occasions. By comparing predicted values with actual measurements, the UE can determine in advance whether reporting is necessary, avoiding unnecessary power consumption while maintaining channel state information accuracy when changes are significant.

Inventive Principle:

Principle #10Preliminary action

4Quantity of substance

If the UE suspends reporting based on predicted values, then the uplink overhead and power consumption are reduced, but the complexity of the reporting mechanism increases

Engineering Contradiction:

Improveuplink overheadVSAvoidreporting mechanism complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The UE performs preliminary prediction of channel values before reporting occasions using historical measurements. This advance prediction allows the UE to determine whether reporting is necessary, reducing uplink overhead. The prediction mechanism adds complexity but is offset by the significant reduction in reporting transmissions and the use of relatively simple statistical methods.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12101155B2User equipment indication to suspend report occasions

Publication Date: 2024.09.24 QUALCOMM INC

AI summary

A user equipment may be configured to perform UE indication to temporarily suspend report occasions. In some aspects, the user equipment may receive report configuration information from a base station, the report configuration information identifying a report parameter to provide in a channel state information (CSI) report, and determine a predicted value of the report parameter based on a plurality of historic measurements. Further, the user equipment may determine to suspend transmission of the report parameter based on the predicted value, and transmit a report suspension message to the base station, the report suspension message indicating that the UE has implemented a temporary suspension of reporting of the report parameter in the CSI report.