Cloud LAN Fronthaul Protocol for Mixed Function Split Compatibility

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Solution Overview

Problem

The challenge lies in efficiently establishing a fronthaul interface between network entities, particularly when they support different function split schemes, which complicates the setup and communication process.

Innovation Solution

A communication method involving a transceiver and controller to dynamically select a function split scheme for optimizing the fronthaul interface setup between network entities, ensuring compatibility across different vendors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different function split schemes are used by network entities, then each entity can optimize for its specific vendor requirements, but compatibility and reliable communication between entities are compromised

Engineering Contradiction:
Improvefunction split scheme flexibilityVSAvoidcommunication reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces a common protocol as an intermediary layer between network entities with different function split schemes. This protocol acts as a mediator that translates and standardizes communication between entities using different internal protocols (e.g., Option 2 and Option 3-1 function splits), enabling compatible interaction without requiring each entity to adopt a unified scheme. The common protocol handles protocol conversion, message formatting, and communication coordination to ensure reliable data exchange across heterogeneous network entities.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a unified function split scheme is enforced, then communication compatibility is improved, but the ability to optimize for specific network conditions and service requirements is reduced

Engineering Contradiction:
Improvecommunication compatibilityVSAvoidoptimization flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent segments the communication protocol into two distinct parts: a vendor-specific internal protocol for each network entity and a common standardized protocol for inter-entity communication. This segmentation allows each entity to maintain its optimized internal function split scheme (Option 2 or Option 3-1) while using a unified common protocol for external communication. The segmentation enables both vendor optimization and cross-vendor compatibility simultaneously by isolating proprietary elements within entity boundaries while standardizing the interface layer.

Inventive Principle:
Principle #1Segmentation

3Productivity

If dynamic function split scheme selection is implemented, then communication optimization based on network conditions is improved, but the complexity of establishing and managing the fronthaul interface increases

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidfronthaul interface setup complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent employs parameter changes by allowing dynamic selection of function split scheme parameters (e.g., choosing between Option 2 and Option 3-1) based on network conditions and service requirements. The system can adjust parameters such as data processing location, transmission parameters, and protocol configurations to optimize communication efficiency. This dynamic parameter adjustment enables the system to adapt to varying network conditions while maintaining manageable complexity through standardized protocol frameworks.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250393083A1Method and device for communication between network entities in cloud LAN environment
Publication Date: 2025.12.25 SAMSUNG ELECTRONICS CO LTD
  • US20250393083A1 patent drawing
  • US20250393083A1 patent drawing
  • US20250393083A1 patent drawing

AI summary

The present disclosure relates to a research that has been conducted with the support of the “Cross-Departmental Giga KOREA Project” funded by the government (the Ministry of Science and ICT) in 2017 (No. GK17N0100, millimeter wave 5G mobile communication system development). The present disclosure relates to a communication technique for convergence of a 5G communication system for supporting a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure may be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety-related service, etc.) on the basis of a 5G communication technology and an IoT-related technology.