Configured Grant Resource Location Determination for BWP Reactivation

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Solution Overview

Problem

In 5G systems, the periodicity of Configured Grant (CG) resources cannot be divisible by 1024*SFN, leading to inconsistent calculations of CG resource locations between network devices and terminal devices when Bandwidth Part (BWP) is reactivated, which affects the quality of service for Time Sensitive Network (TSN) services.

Innovation Solution

A method for determining the location of CG resources in terminal devices when BWP is reactivated, using first information that includes frame number information, ensuring that the calculated location aligns with the network device's method, thus maintaining consistent resource location determination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If BWP is reactivated after deactivation, then CG resources can continue to be used, but the calculated start offset of CG resource becomes different for each SFN cycle, leading to inconsistency between terminal device and network device

Engineering Contradiction:

ImproveBWP reactivation capabilityVSAvoidCG resource location calculation accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent applies preliminary action by determining and freezing the reference SFN cycle before BWP deactivation occurs. This reference SFN cycle is stored and reused when BWP is reactivated, ensuring that the CG resource location calculation starts from the same reference point both before and after reactivation, thus maintaining consistency between terminal device and network device calculations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent changes the parameter reference from the current SFN cycle to a predetermined reference SFN cycle. By modifying which SFN cycle serves as the reference for calculation (from dynamic current cycle to static reference cycle), the patent ensures that CG resource locations remain consistent across BWP deactivation and reactivation events.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If CG resource periodicity is not divisible by 1024*SFN, then more flexible resource allocation is achieved, but the CG resource location calculation varies for each SFN cycle, affecting TSN service quality

Engineering Contradiction:

ImproveCG resource periodicity flexibilityVSAvoidTSN service quality

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies preliminary action by pre-determining the reference SFN cycle before any BWP deactivation occurs. This reference SFN cycle is stored and reused when BWP is reactivated, ensuring that the CG resource location calculation starts from the same reference point both before and after reactivation, thus maintaining consistency between terminal device and network device calculations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12244521B2Method and apparatus for determining resource location, and device and storage medium

Publication Date: 2025.03.04 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

Disclosed are a method and apparatus for determining a resource location, and a device and a storage medium, which belong to the technical field of communications. The method comprises: where a BWP is reactivated, determining the location of a CG resource according to first information, wherein the first information comprises frame number information used for determining the location of the CG resource. Provided is a method for determining or calculating the location of a CG resource corresponding to a BWP after the BWP is reactivated.