Sidelink Resource Determination Mode Selection for 5G NR

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Solution Overview

Problem

In 5G NR systems, the existing methods for determining sidelink resources in mobile communication networks face challenges in balancing resource utilization and signaling overhead, particularly in scenarios where user equipment (UE) needs to dynamically select resources based on quality of service (QoS) requirements.

Innovation Solution

A method and apparatus for determining sidelink resources in user equipment (UE) and base stations, where sidelink resource configuration information is used to instruct UE to select target resources based on QoS information, allowing for dynamic scheduling modes that optimize resource utilization and reduce signaling overhead by selecting from preset resource pools or requesting network scheduling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If network broadcast mode is used for sidelink resource determination, then UE in idle state does not need to enter connected state (saving signaling overhead), but resource utilization rate is low due to reserved resources in broadcast

Engineering Contradiction:

Improvesignaling overheadVSAvoidresource utilization rate

Core Design Contradiction:

Loss of energyVSProductivity

Solution Approach 1:

The patent introduces dynamic resource determination modes that can switch between network broadcast mode and network dynamic scheduling mode based on QoS requirements. This dynamic adaptation allows the system to optimize between signaling overhead and resource utilization rate by selecting the appropriate mode for each sidelink service, resolving the contradiction between saving signaling overhead and maintaining high resource utilization.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of resource determination mode from a fixed selection to a QoS-dependent dynamic selection. By introducing QoS information as a determining factor, the system can adjust the resource determination approach (broadcast vs. dynamic scheduling) based on service requirements, thereby balancing signaling overhead and resource utilization rate.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If network dynamic scheduling mode is used for sidelink resource determination, then resource utilization rate is relatively high, but UE in idle state is required to enter connected state (increasing signaling overhead)

Engineering Contradiction:

Improveresource utilization rateVSAvoidsignaling overhead

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The patent enables dynamic switching between resource determination modes based on QoS requirements. For services with high resource utilization needs, the system selects network dynamic scheduling mode; for services with lower requirements, it selects network broadcast mode. This dynamic approach resolves the contradiction by allowing the system to optimize resource utilization only when necessary.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent introduces QoS information as a key parameter for determining the resource determination mode. This parameter change allows the system to adaptively select between broadcast mode (low signaling overhead) and dynamic scheduling mode (high resource utilization) based on actual service needs, resolving the contradiction between the two approaches.

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If only one resource configuration mode is selected in LTE systems, then the system is simple to operate, but it cannot flexibly adapt to different QoS requirements of sidelink services

Engineering Contradiction:

Improvesystem operation simplicityVSAvoidflexibility for different QoS requirements

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent segments the resource determination process into multiple modes (network broadcast mode and network dynamic scheduling mode) that can be selected based on QoS requirements. This segmentation allows the system to maintain operational simplicity within each mode while providing flexibility through mode selection, resolving the contradiction between simplicity and adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent creates a universal resource determination framework that can handle different QoS requirements through multiple modes. The framework is designed to be multi-functional, supporting both broadcast-based and dynamic scheduling-based resource determination, thereby achieving both operational simplicity and adaptability to various service requirements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12028835B2Methods, apparatuses, user equipment and base stations for determining sidelink resource

Publication Date: 2024.07.02 BEIJING XIAOMI MOBILE SOFTWARE CO LTD

AI summary

A method for determining sidelink resource includes: determining sidelink resource configuration information, where the sidelink resource configuration information is used to instruct the user equipment to determine a target sidelink resource according to quality of service (QoS) information of to-be-transmitted sidelink data; determining a target resource determination mode according to the QoS information of the to-be-transmitted sidelink data and the sidelink resource configuration information; and determining the target sidelink resource for conveying the to-be-transmitted sidelink data in the target resource determination mode.