Service-Type RAT Selection for Lower 5G UE Power Use

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Solution Overview

Problem

The high power consumption of 5G mobile phones compared to 4G phones is a significant issue due to their multi-modal compatibility, leading to inefficient resource utilization and increased power consumption.

Innovation Solution

A method and apparatus for information transmission that allows user equipment (UE) and base stations to utilize a corresponding relationship between service types and radio access technologies (RATs) by broadcasting transmission configuration information, enabling the UE to autonomously select the most suitable RAT for different services, reducing power consumption and resource waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If 5G mobile phone implements multi-modal compatibility (backwards compatible with 4G and 3G networks), then adaptability is improved, but power consumption increases

Engineering Contradiction:
Improvemulti-modal compatibilityVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent segments the network selection process by dividing services into different types (first type services and second type services) and assigning different RAT selection strategies to each segment. This allows the UE to selectively activate only the necessary RATs for specific services rather than maintaining all RATs simultaneously, thereby reducing power consumption while preserving multi-modal compatibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic RAT selection where the UE can flexibly switch between different RATs based on service requirements and network conditions. The transmission configuration information enables dynamic adjustment of RAT usage, allowing the system to adapt to changing conditions and optimize power consumption in real-time while maintaining adaptability across different network types.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If 5G mobile phone implements multi-modal compatibility, then adaptability is improved, but resource utilization efficiency deteriorates

Engineering Contradiction:
Improvemulti-modal compatibilityVSAvoidresource utilization efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent segments service types and applies differentiated RAT selection strategies. First type services use autonomous UE selection while second type services follow network-indicated RAT selection. This segmentation prevents unnecessary activation of all RATs simultaneously, improving resource utilization efficiency while maintaining the ability to access multiple network types when needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the parameter of RAT selection mode based on service type. By transmitting configuration information that differentiates between service types, the system dynamically adjusts the selection parameters (autonomous vs. network-indicated), optimizing resource utilization for different service requirements while preserving multi-modal access capability.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If UE autonomously selects RAT for different services based on transmission configuration information, then resource utilization efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveresource utilization efficiencyVSAvoidselection mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the selection mechanism into two distinct modes (autonomous selection for first type services, network-indicated selection for second type services) based on service type classification. This segmentation simplifies the decision-making process by providing clear rules for different service categories, reducing the perceived complexity despite the enhanced functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The transmission configuration information acts as an intermediary that carries service type indicators and RAT selection mode information. This intermediary structure simplifies the interaction between the network and UE by providing structured guidance, reducing the complexity of the selection mechanism while enabling efficient resource utilization through differentiated service handling.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12615576B2Information transmission method and apparatus
Publication Date: 2026.04.28 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US12615576B2 patent drawing
  • US12615576B2 patent drawing
  • US12615576B2 patent drawing

AI summary

A method for information transmission is performed by a user equipment (UE), including: receiving, by the UE, a message broadcasted by a base station and carrying transmission configuration information, the transmission configuration information being configured to indicate a correspondence between at least one service type and a radio access technology (RAT).