User Equipment Resource Allocation via Segmented Sidelink Control Information

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Solution Overview

Problem

Existing technologies face challenges in efficiently and unambiguously indicating allocated time/frequency resources in sidelink control information (SCI) for user equipment (UE) in New Radio (NR) SL operations.

Innovation Solution

A method performed by user equipment to obtain indication information related to resource allocation from sidelink control information (SCI), and to determine the time/frequency resources based on this information, ensuring efficient and unambiguous resource indication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If resource allocation indication methods are designed to support multiple time/frequency resources in SCI, then the versatility of resource allocation is improved, but the complexity of determining resource locations and sizes increases

Engineering Contradiction:
Improveresource allocation indication capabilityVSAvoidresource determination complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The resource allocation indication is segmented into multiple fields in SCI: a first field indicating the number of time/frequency resources (Nindicatedres), a second field indicating time-domain resource locations, and a third field indicating frequency-domain resource locations. This segmentation allows versatile indication of multiple resources while maintaining manageable complexity by dividing the indication into distinct, organized components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a new dimensional structure to resource indication by adding explicit count fields (Nindicatedres) and separating time/frequency domain indications into distinct fields. This multi-dimensional approach enables comprehensive resource specification without overwhelming complexity in any single indication parameter.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Measurement precision

If detailed resource allocation information is provided for multiple time/frequency resources, then the precision of resource indication is improved, but the amount of information that needs to be processed increases

Engineering Contradiction:
Improveresource indication precisionVSAvoidinformation processing overhead
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

Detailed resource information is segmented across multiple SCI fields: the first field provides the count (Nindicatedres), the second field provides time-domain precision, and the third field provides frequency-domain precision. This segmentation delivers high precision resource indication while organizing information efficiently to minimize processing overhead through structured field separation.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If a flexible resource allocation scheme is implemented to accommodate different numbers of resources, then the adaptability is improved, but the difficulty of designing the allocation mechanism increases

Engineering Contradiction:
Improveresource allocation flexibilityVSAvoidallocation mechanism design complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The flexible allocation mechanism is segmented into modular fields: a count field (Nindicatedres) that adapts to different resource quantities, separate time-domain and frequency-domain indication fields. This modular segmentation provides flexible accommodation of varying resource numbers while simplifying mechanism design through organized, independent field structures that can be processed systematically.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12255852B2Method performed by user equipment, and user equipment
Publication Date: 2025.03.18 SHARP KK
  • US12255852B2 patent drawing
  • US12255852B2 patent drawing
  • US12255852B2 patent drawing

AI summary

According to the present invention, provided is a method performed by user equipment, and the method is characterized by including: obtaining indication information related to resource allocation; and determining Nindicatedres time/frequency resources according to the indication information, wherein Nindicatedres is a positive integer greater than or equal to 1, the indication information related to resource allocation includes information indicated in sidelink control information (SCI), and the information indicated in the SCI includes a time resource allocation indication value TRIV and/or a frequency resource allocation indication value FRIV.