Second-Type BWP Parameter Rules for Discrete Spectrum Allocation

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Solution Overview

Problem

Existing communication protocols do not specify how to determine the frequency domain location and parameters for a second-type BWP with discrete frequency domain resources, which hinders efficient spectrum utilization in discrete spectra.

Innovation Solution

A method is provided to determine the frequency domain location and parameters of a second-type BWP by using a parameter determining rule based on the parameter type, including a reference point, offset, and frequency domain resource information, enabling efficient utilization of discrete spectra.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If a second-type BWP including discrete frequency domain resources is used to improve spectrum efficiency, then spectrum efficiency is improved, but the method to determine frequency domain location and parameter is not specified

Engineering Contradiction:
Improvespectrum efficiencyVSAvoiddetermination method complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The terminal device autonomously determines the frequency domain location and parameters of the second-type BWP by using a parameter determining rule based on its own parameter type and available reference points, without requiring additional network device instructions. This self-service approach resolves the undefined determination method while maintaining spectrum efficiency benefits

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent applies parameter changes by selecting different parameter determining rules based on the parameter type of the second-type BWP. The terminal device changes its determination approach according to the specific parameter characteristics, enabling flexible and adaptive frequency domain resource allocation that improves spectrum efficiency without adding system complexity

Inventive Principle:
Principle #35Parameter changes

2Loss of energy

If discrete frequency domain resources are allocated to improve spectrum efficiency, then spectrum efficiency is improved, but scheduling overhead increases

Engineering Contradiction:
Improvespectrum efficiencyVSAvoidscheduling overhead
Core Design Contradiction:
Loss of energyVSLoss of information

Solution Approach 1:

The patent extracts the frequency domain location determination from the network device's scheduling instructions and relocates it to the terminal device's autonomous decision-making process. By taking out the determination function from network control signaling, the patent reduces scheduling overhead while maintaining the discrete frequency domain resource allocation that improves spectrum efficiency

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The terminal device uses a copy of the parameter determining rule locally to replicate the frequency domain location determination that would otherwise require network device computation and signaling. This copying approach allows the terminal to independently determine resource locations, reducing the information exchange overhead while preserving spectrum efficiency gains

Inventive Principle:
Principle #26Copying

Data Source

PatentEP3799496B1Parameter configuration method and device
Publication Date: 2025.08.06 HUAWEI TECH CO LTD
  • EP3799496B1 patent drawingFigure 1
  • EP3799496B1 patent drawingFigure 2
  • EP3799496B1 patent drawingFigure 3

AI summary

Embodiments of this application relate to the communications field, and disclose a parameter configuration method, to resolve a problem of how to determine a parameter of a second-type bandwidth part BWP in a case of a discrete spectrum. A specific solution includes: for the parameter of the second-type BWP, determining a parameter determining rule based on a parameter type of the second-type BWP, where the second-type BWP includes N frequency domain resources, N is a positive integer, and N is greater than or equal to 2; and determining a parameter value of the second-type BWP according to the parameter determining rule. The embodiments of this application relate to a process of configuring the parameter of the second-type BWP.