YD/T 4644-2023
IoT cloud-edge collaboration technical requirements (English Version)

Standard No.

YD/T 4644-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

Professional Standard - Post and Telecommunication  CN  /  YD

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YD/T 4644-2023

Introduction

Analysis of the Standard Core Framework

Architecture Level	Cloud System Function	Edge Entity Function	Collaboration Mechanism
Resource Management Layer	Unified Management of Edge Node Resources	Local Resource Allocation	CE1 Reference Point Interaction
Business Processing Layer	Rule/Function Global Orchestration	Real-Time Rule Execution	CE4 Reference Point Synchronization
Service Capability Layer	AI/Big Data Capability Openness	Device positioning capability	Ce5 reference point call

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Detailed explanation of key technical requirements

Edge entity management

The cloud system needs to implement full life cycle management, including: edge node certificate issuance (TLS 1.2+), grayscale release of software versions, and hardware asset ledger management. Industrial scenario cases show that unified management can increase OTA upgrade efficiency by 40%.

Data Collaboration Specifications

Data transmission must support:
- End-to-end encryption: AES-256/SM4 algorithm
- Compression optimization: Zstandard/LZMA compression ratio ≥ 70%
- Breakpoint resume: save cached data for at least 72 hours

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Deployment mode comparison

Deployment form	Resource isolation	Applicable scenarios	Typical latency
Exclusive edge node	Physical isolation	High security requirements such as military industry, finance, etc.	<5ms
Unified management of cloud and edge	Logical isolation	Smart city multi-tenant scenario	10-50ms

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Implementation suggestions

1. Device mobility management: Use LwM2M protocol to achieve seamless switching across edge nodes
2. High availability design: Deploy at least 2 edge entities to achieve N+1 redundancy
3. Capability exposure: Encapsulate AI/big data services through OpenAPI 3.0 specifications

Internet of Vehicles practice case

A car company adopted Form 4 deployment to achieve:
- Reduce the response delay of emergency braking commands from 200ms on the cloud to 20ms
- 12TB of sensor data processed daily via Ce3 reference point

YD/T 4644-2023 history

• 2023 YD/T 4644-2023 IoT cloud-edge collaboration technical requirements

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