Selective System Information Update for Wireless UEs

Solution Overview

Problem

Current wireless communication systems face inefficiencies in system information updates, leading to excessive network resource utilization and power consumption, particularly for legacy UEs that are not compatible with new features, resulting in unnecessary re-acquisition of system information.

Innovation Solution

A method where user equipment (UE) receives a system information update message and determines whether the changes apply to its capabilities, selectively acquiring updated system information only if necessary, thereby avoiding unnecessary updates and resource utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If all UEs re-acquire system information upon receiving update messages, then system information consistency is maintained, but network resource utilization and power consumption increase excessively

Engineering Contradiction:

Improvesystem information consistencyVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system applies local quality by differentiating the update behavior of different UE types. Capable UEs re-acquire system information upon receiving update messages, while legacy UEs continue using existing information. This selective application of the update mechanism to specific subsets of UEs based on their capabilities resolves the contradiction by maintaining consistency for those who need it while reducing overall power consumption.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The UE population is segmented into capable UEs and legacy UEs based on their feature support. The system information update mechanism is then applied differently to each segment: capable UEs perform re-acquisition while legacy UEs do not. This segmentation allows the system to maintain necessary consistency for advanced features while avoiding unnecessary power consumption across the entire UE population.

Inventive Principle:

Principle #1Segmentation

2Reliability

If all UEs re-acquire system information upon receiving update messages, then system information consistency is maintained, but network resource utilization increases excessively

Engineering Contradiction:

Improvesystem information consistencyVSAvoidnetwork resource utilization

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The system applies local quality by differentiating the update behavior of different UE types. Capable UEs re-acquire system information upon receiving update messages, while legacy UEs continue using existing information. This selective application of the update mechanism to specific subsets of UEs based on their capabilities resolves the contradiction by maintaining consistency for those who need it while reducing overall network resource utilization.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The UE population is segmented into capable UEs and legacy UEs based on their feature support. The system information update mechanism is then applied differently to each segment: capable UEs perform re-acquisition while legacy UEs do not. This segmentation allows the system to maintain necessary consistency for advanced features while avoiding unnecessary network resource consumption across the entire UE population.

Inventive Principle:

Principle #1Segmentation

3Reliability

If legacy UEs re-acquire system information, then they receive updated features, but they cannot utilize new features due to capability limitations

Engineering Contradiction:

Improvesystem information currencyVSAvoidunnecessary power consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The system applies local quality by differentiating the update behavior of different UE types. Capable UEs re-acquire system information upon receiving update messages, while legacy UEs continue using existing information. This selective application of the update mechanism to specific subsets of UEs based on their capabilities resolves the contradiction by maintaining consistency for those who need it while reducing overall power consumption.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11917526B2System information update optimization

Publication Date: 2024.02.27 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 system information message including first system information for the UE; receive, after receiving the system information message, a system information update message indicating a change to at least a portion of the first system information; determine whether the change applies to one or more capabilities of the UE; and selectively acquire second system information based at least in part on whether the change applies to the one or more capabilities of the UE. Numerous other aspects are provided.