Radio Network Node Resource Allocation via UE Traffic Indication

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Solution Overview

Problem

Wireless communication networks face challenges in optimally allocating radio resources to user equipment (UE) due to uncertainty about the type of data traffic, leading to inefficient resource usage and increased power consumption, especially during RRC connection setup and when handling background or low-priority data traffic.

Innovation Solution

The UE signals to the radio network node the type of data traffic it is handling, such as background or foreground traffic, allowing the node to adjust radio resource allocation accordingly, using mechanisms like Power Preference Indication (PPI) and extended Release Assistance Indication (RAI) to minimize resource usage and optimize resource distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the radio network node allocates maximum radio resources to all UEs, then the network performance and data rate are improved, but the energy consumption and resource waste increase for UEs handling low-priority background traffic

Engineering Contradiction:

Improvenetwork performanceVSAvoidenergy consumption

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The patent applies local quality by differentiating resource allocation based on UE-specific traffic characteristics. The network node identifies UEs handling background traffic versus foreground traffic and applies different resource allocation strategies to different UEs. This allows high-priority UEs to receive adequate resources while low-priority UEs receive reduced resources, optimizing overall network efficiency and reducing energy consumption.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent utilizes parameter changes by monitoring and responding to Power Preference Indication (PPI) parameters from UEs. When a UE indicates lowPowerConsumption preference, the network node changes allocation parameters to reduce resources for that UE. This dynamic parameter adjustment enables the system to adapt resource distribution based on real-time UE power needs and traffic priorities.

Inventive Principle:

Principle #35Parameter changes

2Loss of energy

If the radio network node reduces radio resource allocation to save energy, then energy consumption is reduced, but the network performance and data rate deteriorate

Engineering Contradiction:

Improveenergy consumptionVSAvoidnetwork performance

Core Design Contradiction:

Loss of energyVSProductivity

Solution Approach 1:

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent applies preliminary action by proactively requesting Power Preference Indication (PPI) information from UEs before making resource allocation decisions. The network node sends a PPI request and receives the UE's power preference indication, allowing it to pre-adjust resource allocation according to the UE's stated needs. This preliminary information gathering enables optimized resource distribution before traffic patterns change.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If the radio network node allocates sufficient resources to all UEs, then the quality of service is maintained, but the resource waste increases for UEs with low-priority background traffic

Engineering Contradiction:

Improvequality of serviceVSAvoidresource waste

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent applies feedback by implementing a continuous PPI request-response mechanism. The network node periodically requests power preference indications from UEs and adjusts resource allocation based on the received feedback. This feedback loop ensures that resource allocation remains optimized according to current UE needs and traffic priorities, preventing both over-allocation and under-allocation.

Inventive Principle:

Principle #23Feedback

4Productivity

If the radio network node uses complex resource allocation strategies, then resource efficiency is improved, but the device complexity and signaling overhead increase

Engineering Contradiction:

Improveresource efficiencyVSAvoiddevice complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies universality by implementing a standardized PPI request-response mechanism that can be applied to all UEs in the network. Rather than developing UE-specific complex algorithms, the network uses a universal procedure to obtain power preference information and adjust resource allocation. This multi-functional approach simplifies device complexity while maintaining resource efficiency across diverse UE types and scenarios.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12088488B2Radio network node, user equipment and methods performed therein

Publication Date: 2024.09.10 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

Embodiments herein may relate to a method performed by a UE for handling communication in a wireless communication network. The UE transmits an indication to a radio network node, indicating a type of data traffic for communication of the UE, wherein the type is related to a level of performance.