Continuous Resource Block Scheduling for CQI-Based Allocation

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Solution Overview

Problem

The complexity of resource allocation in wireless communication systems, particularly in NR, is increased due to the use of discrete resource blocks with varying Channel Quality Indicators (CQI), leading to inefficient scheduling and interference from other radio systems like LTE, which complicates the selection of continuous resource blocks for optimal system throughput.

Innovation Solution

A method to determine and select continuous candidate resource block segments with equal or higher CQI, ensuring efficient allocation by prioritizing segments with higher CQI and optimizing the selection process to reduce complexity and interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If discrete resource blocks are allocated to multiple UEs with frequency selection schedule, then channel quality optimization is improved, but resource allocation complexity increases

Engineering Contradiction:
Improvechannel quality optimizationVSAvoidresource allocation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the total resource blocks into multiple continuous segments, where each segment is assigned a representative CQI value. This segmentation approach allows the system to manage discrete resource allocations by organizing them into continuous groups, reducing the complexity of handling individual discrete RBs while maintaining channel quality optimization through segment-level CQI representation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary classification of resource blocks into continuous segments with representative CQI values before the actual scheduling decision. By pre-organizing RBs into segments and calculating their representative CQIs in advance, the system reduces the computational complexity during real-time scheduling, as the scheduler only needs to select from pre-defined segments rather than evaluating individual RBs.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If continuous resource blocks are selected for allocation, then scheduling efficiency is improved, but selection complexity increases due to multiple CQI variations

Engineering Contradiction:
Improvescheduling efficiencyVSAvoidselection complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies local quality by assigning a representative CQI value to each continuous resource block segment, rather than requiring uniform CQI across all RBs. This allows different segments to have different CQI characteristics, enabling the scheduler to select continuous segments that collectively optimize throughput while managing complexity through localized CQI representation for each segment.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent transforms the scheduling problem from selecting individual RBs with varying CQIs to selecting continuous segments with representative CQI values. This parameter change simplifies the selection process by reducing the dimensionality of the decision space, where the scheduler evaluates segments based on their representative CQI and continuous nature rather than individual RB CQIs.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If frequency selection schedule is implemented to avoid LTE interference, then system throughput is improved, but resource allocation runtime increases

Engineering Contradiction:
Improvesystem throughputVSAvoidallocation runtime
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent performs preliminary organization of resource blocks into continuous segments with calculated representative CQI values before the scheduling moment. This pre-processing step reduces the runtime during actual scheduling, as the system only needs to select from pre-defined segments rather than evaluating all individual RBs, thereby reducing allocation runtime while maintaining frequency selection capabilities for LTE interference avoidance.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12567933B2Method and apparatus for resource allocation
Publication Date: 2026.03.03 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • US12567933B2 patent drawing
  • US12567933B2 patent drawing
  • US12567933B2 patent drawing

AI summary

Embodiments of the present disclosure provide methods and apparatus for resource allocation. A method implemented at a network node comprises determining one or more candidate resource block segments with a corresponding channel quality indicator. The one or more candidate resource block segments comprise corresponding continuous one or more candidate resource blocks, and a respective channel quality of the corresponding continuous one or more candidate resource blocks is equal to or higher than the channel quality of the candidate resource block segment indicated by the corresponding channel quality indicator. The method further comprises selecting at least one of the one or more candidate resource block segments. The method further comprises determining at least one resource block for a terminal device from the selected at least one candidate resource block segment. The method further comprises transmitting information regarding the at least one resource block to the terminal device.