UE Power Class Change Reporting via MAC-CE

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems face issues when user equipment (UE) is unable to report power class changes, updated uplink full power transmission (ULFPTx) parameters or modes, and/or updated uplink rank to the network, leading to limited network operation and potential service disruptions.

Innovation Solution

Implementing a power class change reporting configuration that allows UE to transmit Medium Access Control (MAC) control element (MAC-CE) communications indicating power class changes or changes in uplink capability parameters, including ULFPTx parameters or modes, to the network node.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If UE does not report power class changes and uplink capability parameters, then network operation remains simple, but network operation becomes limited and service disruptions occur

Engineering Contradiction:

Improvenetwork operation continuityVSAvoidreporting configuration complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a feedback mechanism where UE reports power class changes and uplink capability parameters to the network node through MAC-CE communications. This feedback enables the network to adapt to UE capability changes, preventing service disruptions while maintaining manageable system complexity through structured reporting configurations.

Inventive Principle:

Principle #23Feedback

2Productivity

If UE reports power class changes and uplink capability parameters, then network can optimize resource management, but communication overhead increases

Engineering Contradiction:

Improveresource management efficiencyVSAvoidcommunication overhead

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The patent extracts essential capability information (power class changes and uplink capability parameters) from comprehensive UE status data and reports only these critical elements through MAC-CE communications. This selective reporting approach enables efficient resource management while minimizing communication overhead by excluding unnecessary data.

Inventive Principle:

Principle #2Taking out (Extraction)

3Speed

If network waits for UE to initiate capability reporting, then network configuration is simpler, but response time increases and service quality deteriorates

Engineering Contradiction:

Improvecapability update response timeVSAvoidnetwork configuration complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent implements preliminary action by configuring UE to automatically report power class changes and uplink capability parameters as they occur, rather than waiting for network-initiated queries. This proactive reporting mechanism reduces response time and improves service quality while maintaining manageable network configuration through predefined reporting triggers.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250142481A1Power class change reporting

Publication Date: 2025.05.01 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a power class change reporting configuration. The UE may transmit one or more medium access control (MAC) control element (MAC-CE) communications, wherein at least one of the one or more MAC-CE communications indicates a power class change or a change in one or more uplink capability parameters and wherein at least one of the one or more MAC-CE communications indicates one or more uplink full power transmission (ULFPTx) parameters or one or more ULFPTx modes. Numerous other aspects are described.