PUCCH Resource Sets for 5G NR Scheduling Flexibility

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Solution Overview

Problem

The existing 5G NR systems face limitations in resource scheduling flexibility due to the unified configuration of PUCCH resource sets for multiple scheduling types and DCI formats, leading to higher signaling overhead and reduced resource utilization.

Innovation Solution

Configuring multiple resource sets for different scheduling types and DMRS mapping types, allowing terminals to select resources based on network-side information, such as scheduling type and DMRS mapping type, to optimize resource allocation and reduce signaling overhead.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If unified configuration of PUCCH resource sets is used for multiple scheduling types and DCI formats, then device complexity is reduced, but resource scheduling flexibility deteriorates and signaling overhead increases

Engineering Contradiction:

Improveresource configuration complexityVSAvoidresource scheduling flexibility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent divides the unified PUCCH resource set into multiple separate resource sets, each specifically configured for different scheduling types (slot-based and symbol-based) and DCI formats. This segmentation allows each resource set to be optimized for its specific purpose, improving resource scheduling flexibility while maintaining manageable device complexity through structured organization.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If unified configuration of PUCCH resource sets is used for multiple scheduling types and DCI formats, then device complexity is reduced, but signaling overhead increases

Engineering Contradiction:

Improveresource configuration complexityVSAvoidsignaling overhead

Core Design Contradiction:

Device complexityVSLoss of information

Solution Approach 1:

The patent applies local quality by configuring resource sets with specific properties tailored to their intended use. Each resource set has localized optimizations for its specific scheduling type and DCI format, allowing precise control over signaling requirements. This reduces overall signaling overhead by avoiding the need to convey unnecessary configuration parameters for unrelated scheduling scenarios.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If separate resource sets are configured for different scheduling types and DMRS mapping types, then resource scheduling flexibility is improved, but device complexity increases

Engineering Contradiction:

Improveresource scheduling flexibilityVSAvoidresource configuration complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamics by enabling the network to dynamically select and switch between different resource sets based on the current scheduling type and DCI format being used. This dynamic resource allocation allows the system to adapt to changing conditions without requiring the terminal to permanently maintain complex configurations for all possible scenarios, thus improving flexibility while controlling device complexity.

Inventive Principle:

Principle #15Dynamics

4Productivity

If separate resource sets are configured for different scheduling types and DMRS mapping types, then resource utilization is improved, but signaling overhead increases

Engineering Contradiction:

Improveresource utilizationVSAvoidsignaling overhead

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The patent applies preliminary action by pre-configuring multiple resource sets with optimized parameters for different scheduling types and DMRS mapping types before actual transmission occurs. This allows the network to quickly select the most appropriate resource set for each transmission scenario without needing to negotiate or reconfigure parameters in real-time, thereby improving resource utilization while minimizing the signaling overhead required for resource allocation.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11985686B2Channel resource indication method, terminal device and network device

Publication Date: 2024.05.14 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

A method for indicating a channel resource, a terminal device and a network device are provided. The method includes that: at least two resource sets are determined, the at least two resource sets at least including a first resource set and a second resource set and different resource sets corresponding to different Demodulation Reference Signal (DMRS) mapping types or corresponding scheduling types respectively; and a first resource from one resource set of the at least two resource sets is determined. Respective resource scheduling flexibility of each scheduling type may be improved, higher resource utilization rate and transmission performance for channel transmission are achieved, and a higher signaling overhead is avoided.