Unrestricted Bandwidth Part Resource Allocation via RIV

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Solution Overview

Problem

Existing wireless communication systems face challenges in resource allocation indication when a user equipment (UE) operates in an unrestricted bandwidth part (BWP) not configured with a default control resource set (CORESET) #0.

Innovation Solution

The system enables a UE to determine a resource indicator value (RIV) to include in a frequency domain resource allocation field for an unrestricted BWP, based on the BWP being configured with a CORESET different from the default CORESET #0, allowing communication with a network entity via the unrestricted BWP.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a UE operates in an unrestricted BWP not configured with CORESET #0, then the flexibility of bandwidth part configuration is improved, but the complexity of resource allocation indication increases

Engineering Contradiction:

Improveflexibility of bandwidth part configurationVSAvoidcomplexity of resource allocation indication

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent changes the reference bandwidth parameter from CORESET #0 bandwidth to the unrestricted BWP's own bandwidth. This parameter substitution allows the resource allocation to adapt to the actual BWP configuration while maintaining the existing RIV encoding mechanism, thus resolving the contradiction between flexibility and complexity.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If a UE operates in an unrestricted BWP with a different CORESET, then the adaptability of control resource configuration is improved, but the difficulty of determining resource allocation increases

Engineering Contradiction:

Improveadaptability of control resource configurationVSAvoiddifficulty of determining resource allocation

Core Design Contradiction:

Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The unrestricted BWP determines its own resource allocation parameters based on its configured bandwidth rather than relying on external CORESET #0 configuration. This self-service approach simplifies the determination process by using locally available configuration information, reducing the difficulty while maintaining adaptability.

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If the bandwidth of CORESET #0 is different from the bandwidth of unrestricted BWP, then the versatility of resource configuration is improved, but the accuracy of resource allocation indication deteriorates

Engineering Contradiction:

Improveversatility of resource configurationVSAvoidaccuracy of resource allocation indication

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent substitutes the reference bandwidth parameter from CORESET #0 to the unrestricted BWP's configured bandwidth. This parameter change ensures that the RIV encoding and decoding operate on consistent bandwidth references, maintaining accuracy while supporting versatile resource configurations with different bandwidths.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250071597A1Resource allocation indication in unrestricted bandwidth part

Publication Date: 2025.02.27 QUALCOMM INC

AI summary

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may determine resource allocation information when operating on an unrestricted bandwidth part (BWP) that is not configured with a control resource set (CORESET) associated with system information (SI) acquisition. For example, the UE may receive first control information indicating a first CORESET associated with SI acquisition. The UE may receive second control information indicating an unrestricted BWP that is configured with a second CORESET that is different than the first CORESET. The unrestricted BWP may have a bandwidth that is equal to, greater than, or less than the bandwidth of the first CORESET. The UE may determine a resource indicator value (RIV) to include in a frequency domain resource allocation (FDRA) field for the unrestricted BWP. The UE may communicate, via the unrestricted BWP, based on the RIV.