Higher Priority Carrier Search Timing for RedCap UE Power Balance

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Solution Overview

Problem

Reduced capability (RedCap) user equipment (UE) faces a tradeoff between network performance and power/energy consumption when searching for higher priority carriers, as extended search times impact performance but can conserve energy.

Innovation Solution

A method and apparatus for determining a time interval for RedCap UE to search for higher priority carriers based on comparing a first parameter, such as an eDRX cycle, with predefined thresholds, adjusting the search frequency accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If an extended time period is used to search for higher priority carriers, then power and energy consumption of the RedCap UE is reduced, but network performance and scheduling capability are negatively impacted

Engineering Contradiction:

Improvepower and energy consumptionVSAvoidnetwork performance and scheduling capability

Core Design Contradiction:

Use of energy by moving objectVSProductivity

Solution Approach 1:

The patent applies dynamics by making the search time period adjustable rather than fixed. The network device dynamically determines the search time period based on the UE's current state, allowing the system to adapt between energy saving mode (longer search period) and performance-critical mode (shorter search period) as needed

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of search time period based on comparison results. By comparing the determined search time period against threshold values and adjusting the parameter accordingly, the system optimizes the balance between energy consumption and network performance for different operational scenarios

Inventive Principle:

Principle #35Parameter changes

2Productivity

If a shorter time period is used to search for higher priority carriers, then network performance and scheduling capability are improved, but power and energy consumption of the RedCap UE increase

Engineering Contradiction:

Improvenetwork performance and scheduling capabilityVSAvoidpower and energy consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts the search time period based on real-time conditions. When network performance is critical, the search period is shortened; when energy conservation is prioritized, the search period is extended. This dynamic adaptation allows the system to respond to varying operational requirements

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The search time period parameter is changed based on threshold comparisons. The network device compares the calculated search time against predefined thresholds and adjusts the parameter accordingly, enabling the system to switch between energy-efficient and performance-oriented operational modes

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20260040237A1Method of determining measurement requirements on higher priority carriers

Publication Date: 2026.02.05 NOKIA TECHNOLOGIES OY

AI summary

The present disclosure provides a terminal device. The terminal device can receive a first parameter for the terminal device, wherein a first carrier is used by the terminal device. The terminal device can perform a comparison between the first parameter and one or more thresholds, and determine a second parameter for the terminal device based on the comparison. The second parameter can indicate a time interval for the terminal device to search for one or more carriers with a priority higher than the first carrier. The terminal device can receive the first parameter from a network device.