Wireless Resource Allocation via Interlace and RB-Set Intersection

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Solution Overview

Problem

Current wireless communication systems, such as those in the LTE and New Radio (NR) standards, face limitations in flexibility and efficiency, particularly in managing multiple component carriers and resource allocation, which can impact performance in scenarios like enhanced Mobile BroadBand, massive Machine Type Communication, and Ultra Reliable and Low Latency Communication.

Innovation Solution

The implementation of a wireless communication system that utilizes Orthogonal Frequency Division Multiplexing (OFDM) with cyclic prefix and discrete Fourier transform-spread OFDM, along with advanced resource grid configurations and carrier aggregation, to enhance flexibility and efficiency by optimizing subcarrier-spacing, CP configurations, and resource allocation across multiple component carriers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single base station device manages multiple cells with traditional resource allocation, then network coverage is provided, but communication flexibility and efficiency are limited

Engineering Contradiction:

Improvecommunication flexibilityVSAvoidresource management complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the resource allocation process by introducing separate indication fields for first resource allocation (e.g., PDSCH) and second resource allocation (e.g., PUSCH). This allows independent control and optimization of downlink and uplink resources, enhancing communication flexibility while maintaining manageable complexity through structured resource management.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent adds a new dimension to resource allocation by introducing a second resource allocation mechanism that operates independently from the first. This multi-dimensional resource allocation approach enables more flexible resource management across multiple component carriers, improving adaptability without linearly increasing system complexity.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Productivity

If traditional resource allocation methods are used in LTE and NR systems, then basic communication functions are maintained, but efficiency is reduced

Engineering Contradiction:

Improvecommunication efficiencyVSAvoidresource allocation flexibility

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic resource allocation by allowing the second resource allocation to be independently configured and adjusted based on communication needs. The resource allocation can adapt to different scenarios (e.g., eMBB, mMTC, URLLC) and traffic conditions, improving communication efficiency while maintaining the flexibility needed for diverse service requirements.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes key resource allocation parameters by introducing separate indication fields and configurable resource allocation mechanisms. This allows optimization of parameters such as resource block allocation, modulation and coding schemes, and timing relationships to improve communication efficiency for different service types and channel conditions.

Inventive Principle:

Principle #35Parameter changes

3Quantity of substance

If multiple component carriers are aggregated, then communication capacity is increased, but resource management complexity increases

Engineering Contradiction:

Improvecommunication capacityVSAvoidcarrier aggregation complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent creates a universal resource allocation framework that can handle multiple component carriers through a standardized two-stage indication mechanism. This multi-functional approach allows the same resource allocation structure to manage resources across different carriers, frequency ranges, and service types, increasing communication capacity while controlling management complexity through consistency.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Productivity

If advanced OFDM configurations are implemented, then resource utilization is optimized, but system complexity increases

Engineering Contradiction:

Improveresource utilizationVSAvoidconfiguration complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies local quality optimization by allowing different OFDM configurations (subcarrier spacing, cyclic prefix lengths) to be applied to different component carriers or resource blocks based on specific channel conditions and service requirements. This enables optimized resource utilization in critical areas while maintaining simpler configurations elsewhere, balancing performance and complexity.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12200728B2Terminal devices, base station devices, and communication methods

Publication Date: 2025.01.14 SHARP KK

AI summary

The DCI format at least indicates a set of interlaces if the DCI format indicates a set of RB-sets, resource blocks for the PUSCH are given based on an intersection of the set of the interlaces and the set of the RB-sets, and if the DCI format doesn't indicate the set of the RB-sets, the resource blocks for the PUSCH are given based on an intersection of the set of the interlaces and a pre-determined set of RB-sets where the pre-determined set includes one RB-set which corresponds to one downlink RB set in which the DCI format is received.