ISO/TR 17732:2024 - Intelligent transport systems (ITS)

Introduction

Core elements of ITS communication functions

According to the ISO/TR 17732:2024 technical report, modern ITS communication systems need to integrate the following key functions:

Functional dimensions	Traditional solutions	New technology requirements
Communication delay	LTE network (50-100ms)	5G/6G(1-10ms) + LEO satellite
Data security	Independent PKI system	Hybrid security architecture in accordance with ISO 21177
Device access	Single device dedicated channel	Network slicing + carrier aggregation technology

The standard defines the interaction framework between the digital infrastructure platform and the physical infrastructure:

Smart probe data is transmitted to the edge computing node in real time through the 5G network
The AI engine completes multi-source data fusion at the digital infrastructure layer
The processed traffic situation information is distributed to the vehicle terminal via the communication service provider

The standard particularly emphasizes the need to combine the following security specifications:

Guidelines based on technical reports:

Implementation phase	Key action items
Planning period	Establish a role responsibility matrix in line with ISO/TR 4445
Construction period	Deploy a 5G core network that supports network slicing
Operation period	Implement the two-way certificate authentication mechanism specified by ISO 21177

The report points out that the future will develop towards a cloud-native communication architecture, with the following main features: