Resource Unit Scheduling for High-Frequency Data Transmission

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Solution Overview

Problem

High-frequency wireless communication systems face low data transmission efficiency due to the use of high subcarrier spacings that result in short slots, making traditional slot-based scheduling inefficient.

Innovation Solution

Introduce a larger scheduling unit called a resource unit (RU) comprising N subcarriers and M consecutive slots, allowing flexible scheduling of data transmission channels without being limited by slot size, and adapt LBT methods to improve efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high subcarrier spacings are used to resist multipath fading, then resistance to multipath fading is improved, but slot duration becomes short resulting in low data transmission efficiency

Engineering Contradiction:
Improveresistance to multipath fadingVSAvoiddata transmission efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent divides the traditional slot-based scheduling unit into smaller resource blocks (RBs) that can be flexibly combined. Each RB contains a specific number of subcarriers and symbols, allowing the system to segment resources according to actual transmission needs rather than being constrained by fixed slot boundaries. This segmentation enables efficient utilization of high SCS configurations while maintaining appropriate transmission durations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces dynamic resource allocation where the number of resource blocks, their positions in frequency and time domains, and their configurations can be adaptively adjusted based on channel conditions, traffic requirements, and SCS settings. This dynamic approach allows the system to optimize the balance between resistance to multipath fading and data transmission efficiency for each transmission scenario.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If traditional slot-based scheduling is used, then scheduling simplicity is maintained, but data transmission efficiency becomes very low due to short slot duration

Engineering Contradiction:
Improvescheduling simplicityVSAvoiddata transmission efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent extends the scheduling dimension from traditional time-domain slot-based allocation to include flexible resource block groupings that span both time and frequency domains. By introducing resource blocks as the basic scheduling unit with configurable numbers of subcarriers and symbols, the system creates an additional degree of freedom in resource allocation, enabling more efficient scheduling without significantly increasing complexity.

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

Solution Approach 2:

The patent designs a universal resource block structure that can accommodate different SCS configurations, transmission types (uplink, downlink, sidelink), and service requirements. The same RB framework serves multiple functions including data transmission, reference signaling, and flexible adaptation to various numerical configurations, maintaining scheduling simplicity while improving efficiency across diverse scenarios.

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

Data Source

PatentUS12363727B2Data transmission method, apparatus and system
Publication Date: 2025.07.15 ZTE CORP
  • US12363727B2 patent drawing
  • US12363727B2 patent drawing
  • US12363727B2 patent drawing

AI summary

Provided are a data transmission method, apparatus and system. The data transmission method includes: configuring transmission resource configuration information, where the transmission resource configuration information includes configuration information about k RUs, each RU includes N subcarriers and M consecutive slots, and k, N, and M are integers greater than or equal to 1; and scheduling, through downlink control signaling, a transmission of at least one data transmission channel over the k RUs indicated by the transmission resource configuration information.