Aggregated Uplink Scheduling Pattern for 5G QoS

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Solution Overview

Problem

The 5G NR system faces challenges in supporting stringent Quality of Service (QoS) requirements due to limited flexibility in configuring TDD UL/DL patterns, especially when coexisting with 4G LTE in the same frequency band, leading to high latency in scheduling uplink packages.

Innovation Solution

A method is introduced where a network node determines an aggregated uplink scheduling pattern for a wireless device based on QoS parameters, including delay requirements, by combining UL resources from multiple carriers, and configures the device using configured grants and dynamic grants to fulfill the QoS requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If TDD UL/DL patterns are configured to coexist with 4G LTE in the same frequency band, then network compatibility is improved, but uplink scheduling flexibility deteriorates

Engineering Contradiction:

Improvenetwork compatibilityVSAvoiduplink scheduling flexibility

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the uplink scheduling into multiple independent patterns (first UL scheduling pattern for LTE compatibility, second UL scheduling pattern for NR flexibility). The wireless device can be configured with multiple patterns and select appropriate ones based on service requirements, thereby maintaining LTE coexistence while enabling flexible NR-specific scheduling when needed.

Inventive Principle:

Principle #1Segmentation

2Reliability

If conventional UL scheduling patterns are used, then LTE coexistence is maintained, but latency in scheduling uplink packages increases

Engineering Contradiction:

ImproveLTE coexistenceVSAvoiduplink scheduling latency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent introduces dynamic pattern selection where the wireless device can switch between different UL scheduling patterns based on real-time service requirements. For latency-sensitive services, the device selects the second pattern optimized for NR which reduces scheduling latency, while maintaining the first pattern for services requiring LTE coexistence, thus dynamically adapting to different operational conditions.

Inventive Principle:

Principle #15Dynamics

3Loss of time

If aggregated UL scheduling pattern from multiple carriers is implemented, then latency is reduced, but configuration complexity increases

Engineering Contradiction:

Improveuplink transmission latencyVSAvoidscheduling pattern configuration

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The patent creates a universal aggregated UL scheduling pattern that combines resources from multiple carriers (LTE and NR) into a single coordinated scheduling framework. This aggregated pattern provides multi-functionality by serving both LTE compatibility requirements and NR performance optimization needs simultaneously, reducing latency through carrier aggregation while managing complexity through unified configuration management.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12279294B2Uplink resource configuration

Publication Date: 2025.04.15 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

A method performed by a network node (260, 800) is disclosed. The network node determines (701), based on one or more quality-of-service (QoS) parameters, an aggregated uplink (UL) scheduling pattern for a wireless device (210, 1000, 1100), the aggregated UL scheduling pattern for the wireless device comprising UL resources from a plurality of carriers. The one or more QoS parameters indicate one or more QoS requirements associated with a service. At least one of the one or more QoS parameters indicates a delay requirement 0 associated with the service.