Configurable Wireless Symbols for Flexible Frame Scheduling

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Solution Overview

Problem

Current frame structures in wireless communication systems, such as LTE and NR, impose limitations on symbol duration and cyclic prefix, restricting flexibility in scheduling and transmission, which is inadequate for diverse service scenarios like autonomous vehicles and device-to-device communication.

Innovation Solution

Configurable parameters for multi-carrier and single-carrier symbols and symbol blocks, allowing flexible duration and location in time and frequency domains, with reduced control signaling overhead through predefined configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If configurable parameters for symbol duration and location are implemented, then flexibility in scheduling and transmission is improved, but control signaling overhead increases

Engineering Contradiction:

Improveflexibility in scheduling and transmissionVSAvoidcontrol signaling overhead

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent implements configurable parameters for symbol duration, cyclic prefix length, and symbol location within the frame structure. These parameters can be dynamically adjusted to accommodate different service scenarios (e.g., autonomous vehicles, device-to-device communication) while managing signaling overhead through selective configuration

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The frame structure transitions from a static design to a dynamic one where symbol parameters can be reconfigured based on traffic requirements. The system allows flexible scheduling of symbols with varying durations and positions within the frame, enabling adaptation to diverse service scenarios without requiring complete frame restructure

Inventive Principle:

Principle #15Dynamics

2Device complexity

If strict frame structure restrictions are maintained, then system complexity is reduced, but adaptability to diverse service scenarios deteriorates

Engineering Contradiction:

Improveframe structure complexityVSAvoidservice scenario accommodation

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The frame structure is segmented into multiple symbols with configurable parameters. Each symbol can have independent duration, position, and cyclic prefix configuration, allowing the system to maintain a manageable overall structure while providing fine-grained control for diverse service requirements

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent creates a universal frame structure that can accommodate multiple service scenarios (autonomous vehicles, device-to-device communication, delay-sensitive and delay-tolerant applications) through configurable parameters. This single flexible structure replaces the need for multiple specialized frame structures

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12557102B2Systems and methods for configuring symbol and symbol block parameters in wireless communication

Publication Date: 2026.02.17 HUAWEI TECH CO LTD

AI summary

Current frame structures in Long-Term Evolution (LTE) and New Radio (NR) place some restrictions on the symbols transmitted in the frame, e.g. restrictions related to the duration of each symbol. Embodiments are disclosed in which multi-carrier symbols and/or single-carrier symbol blocks have configurable parameters, such as configurable length and/or configurable location.