Communication Resource Sensing for Mixed NR V2X Frame Structures

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Solution Overview

Problem

The transition from LTE-based V2X communication to NR V2X communication introduces challenges in resource sensing due to differing mechanisms, leading to difficulties in simultaneous sensing and decoding of packets across vehicles using different frame structures.

Innovation Solution

A communication apparatus and system that control resource sensing in NR V2X communication by controlling operations in predetermined minimum units on a time axis, enabling efficient resource allocation and decoding across vehicles with varying numerologies and frame structures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If LTE-based V2X communication mechanism is used, then resource sensing can be performed using established methods, but NR V2X communication with different frame structures cannot be properly sensed and decoded

Engineering Contradiction:

Improvecompatibility across different communication standardsVSAvoidresource sensing accuracy

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the resource sensing process into two independent parts: sensing window (for detecting reservation information) and selection window (for actual resource selection). This segmentation allows the system to handle different frame structures and numerologies separately in each window, enabling compatibility between LTE and NR V2X communications while maintaining sensing accuracy for each type.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic adjustment of sensing parameters based on the detected communication type. When NR V2X communication is detected, the system dynamically changes the sensing window size and timing according to the specific numerology and frame structure, allowing flexible adaptation to different communication standards without compromising sensing reliability.

Inventive Principle:

Principle #15Dynamics

2Measurement precision

If resource sensing is performed in predetermined minimum units on time axis, then sensing precision is improved, but device complexity increases

Engineering Contradiction:

Improveresource sensing precisionVSAvoidcontrol operation complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent performs preliminary configuration of sensing parameters including minimum sensing unit size, sensing window duration, and timing offsets before the actual resource selection process. This preliminary setup establishes a standardized framework that simplifies the control operations during resource sensing, reducing real-time computational complexity while maintaining high measurement precision through the pre-defined minimum units.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12445907B2Communication apparatus, control apparatus, and communication system

Publication Date: 2025.10.14 SONY GROUP CORP

AI summary

There is provided a communication apparatus including: a communication unit that performs radio communication; a control unit that controls an operation of sensing resources to be used in a communication scheme used for performing inter-device communication with other devices, in which the control unit controls to sense the resource in a predetermined minimum unit on a time axis.