Multi-Subcarrier Spacing Data Transmission for 5G Service Diversity

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Solution Overview

Problem

Existing 5G communication systems limit service data transmission flexibility by using fixed subcarrier spacings at fixed frequencies, failing to accommodate the diverse requirements of different service types such as eMBB, URLLC, and mMTC.

Innovation Solution

A data transmission method and system that supports data transmission using multiple subcarrier spacings at the same or different frequencies, allowing for flexible configuration of parameters like subcarrier spacing, cyclic prefix, time units, and resource blocks to enhance service diversity and flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If fixed subcarrier spacing is used at fixed frequency, then system complexity is reduced, but service adaptability deteriorates

Engineering Contradiction:
Improvesystem complexityVSAvoidservice adaptability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic parameter configuration where subcarrier spacing and frequency parameters can be flexibly adjusted based on service requirements. The system transitions from fixed parameters to dynamically configurable parameters, allowing different service types (eMBB, URLLC, mMTC) to utilize appropriate parameter settings without increasing overall system complexity through rigid structures.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes physical parameters (subcarrier spacing, frequency) to accommodate different service characteristics. By allowing parameter variations across different service types and scenarios, the system achieves high adaptability while maintaining manageable complexity through standardized parameter sets.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple subcarrier spacings are supported at same or different frequencies, then service adaptability is improved, but device complexity increases

Engineering Contradiction:
Improveservice adaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the communication system into multiple parameter configurations, each optimized for specific service types. By dividing the parameter space into discrete, manageable sets (different subcarrier spacings, frequency ranges), the system can support diverse services without requiring continuous parameter adjustment, thus controlling device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent creates a universal framework that can handle multiple service types through a common multi-parameter system. The same system infrastructure supports different subcarrier spacings and frequency configurations, allowing one system to perform multiple service functions without requiring separate dedicated systems for each service type.

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

Data Source

PatentEP3487241B1Data transmission method and system
Publication Date: 2025.06.25 HUAWEI TECH CO LTD
  • EP3487241B1 patent drawingFigure 1
  • EP3487241B1 patent drawingFigure 2
  • EP3487241B1 patent drawingFigure 3~4

AI summary

The present invention relates to a data transmission method and a system. The method is based on data transmission in a multi-parameter system, where a plurality of parameters include a subcarrier spacing, and the method includes: sending, by the multi-parameter system, data over a physical channel or a physical signal by using at least one subcarrier spacing. Based on the data transmission method, a plurality of subcarrier spacings are used to transmit data, improving diversity of service data transmission.