BWP Bundle Resource Allocation Across Non-Contiguous Carriers

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Solution Overview

Problem

Existing signal transmission methods in mobile communications systems face challenges in efficiently utilizing discrete frequency domain resources, particularly in scenarios where bandwidth parts (BWPs) span multiple carriers or non-contiguous frequency domains, leading to inefficiencies in resource allocation and signal transmission.

Innovation Solution

The introduction of a BWP bundle design, which allows for BWPs to include multiple segments of frequency domain resources that can be located on the same or different carriers, enabling efficient signal transmission across discrete spectrums by configuring and activating BWPs to facilitate resource allocation and switching.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional BWP configuration is used for contiguous frequency resources, then resource allocation is simple, but it cannot efficiently utilize discrete frequency domain resources across multiple carriers

Engineering Contradiction:
Improvefrequency domain resource coverageVSAvoidBWP configuration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the BWP into multiple independent parts, each part corresponding to a specific carrier or frequency range. This allows the BWP to cover discrete frequency resources across multiple carriers while maintaining independent configuration and management of each segment, thus expanding frequency domain coverage without overwhelming complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a new dimension to BWP configuration by allowing BWPs to span multiple carriers in the frequency domain. Instead of confining BWP to a single contiguous frequency block, the invention extends BWP across multiple carriers, transforming the resource allocation from one-dimensional (single carrier) to multi-dimensional (multiple carriers) space

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If BWP spans multiple carriers, then frequency domain resource utilization improves, but resource allocation and signal transmission complexity increases

Engineering Contradiction:
Improveresource utilization efficiencyVSAvoidresource allocation complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent divides the multi-carrier BWP into separate parts, where each part can be independently configured and managed. This segmentation allows the system to utilize discrete frequency resources across multiple carriers while simplifying resource allocation through modular, part-based management rather than treating the entire multi-carrier BWP as a single complex entity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent creates a universal BWP framework that can operate in multiple modes: it can function as a traditional single-carrier contiguous BWP or as a multi-carrier non-contiguous BWP. This multi-functionality allows the same BWP structure to adapt to different resource allocation scenarios, improving resource utilization without requiring entirely separate configuration mechanisms

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If multiple BWPs are configured for different carriers, then signal transmission flexibility improves, but system complexity increases

Engineering Contradiction:
Improvesignal transmission flexibilityVSAvoidBWP management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple carrier-specific BWP configurations into a unified multi-carrier BWP structure. Instead of managing separate BWP configurations for each carrier, the invention combines them into a single BWP that spans multiple carriers, reducing the number of independent configurations needed while maintaining the flexibility to allocate resources across different carriers and signal transmission paths

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3820218B1Signal transmission method, apparatus, terminal device, network device, and system
Publication Date: 2026.01.28 HUAWEI TECH CO LTD
  • EP3820218B1 patent drawingFigure 1~2
  • EP3820218B1 patent drawingFigure 3~4
  • EP3820218B1 patent drawingFigure 5~6

AI summary

This application provides a signal transmission method, an apparatus, a terminal device, a network device, and a system. The method on a terminal device side includes: receiving resource indication information sent by a network device, where the resource indication information is used to indicate resource block groups RBGs allocated to the terminal device in a bandwidth part BWP, and the BWP includes N segments of frequency domain resources; for one of the N segments of frequency domain resources, a size P of an RBG other than the first RBG and the last RBG in the segment of frequency domain resources is determined based on a sum of bandwidths of the N segments of frequency domain resources; and for one of the N segments of frequency domain resources, a size of the first RBG in the segment of frequency domain resources is determined based on a start location of the segment of frequency domain resources and P; and transmitting a signal on the resource block groups RBGs allocated to the terminal device.