Selective Ethernet Header Compression for 5G Low-Latency Links
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Solution Overview
Problem
Existing next-generation mobile communication systems face challenges in efficiently using transmission resources for services requiring low latency and high reliability, such as ultra-reliable low latency communication (URLLC) and industrial IoT (IIoT), due to inefficient header compression and decompression procedures.
Innovation Solution
Implementing Ethernet header compression (EHC) and robust header compression (ROHC) methods selectively based on data type, bypassing ROHC for PDCP SDUs or PDUs without a type field, to optimize header processing and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ROHC compressor is used for all PDCP SDUs, then header compression is performed uniformly, but transmission resources are wasted for data types that do not require ROHC processing
Solution Approach 1:
The patent applies different header compression methods (EHC vs ROHC) to different data types based on the presence of the type field in Ethernet headers. This local differentiation ensures that each data type receives the most appropriate compression treatment, improving overall transmission efficiency without unnecessarily complicating the processing of all data types.
Solution Approach 2:
The patent segments the header compression process into two distinct paths: one for data with type fields (using ROHC) and one for data without type fields (using EHC). This segmentation allows the system to avoid applying complex ROHC processing to data types that would benefit more from simpler EHC processing.
2Loss of energy
If EHC compressor is used for data without type field, then transmission resources are saved, but compatibility with existing systems must be maintained
Solution Approach 1:
The patent implements a dynamic header compression strategy that adapts to the characteristics of each data type. The system dynamically selects between EHC and ROHC based on the presence of the type field, allowing it to optimize transmission resource usage while maintaining compatibility through conditional processing rather than a fixed approach.
3Productivity
If selective header compression is implemented, then transmission resource efficiency improves, but additional processing overhead is introduced
Solution Approach 1:
The patent performs preliminary identification of the type field presence in Ethernet headers before selecting the compression method. This preliminary action allows the system to make informed compression decisions early in the processing chain, avoiding unnecessary complexity later while still achieving optimal transmission efficiency.
Data Source
AI summary
The disclosure relates to a communication technique and system for combining an IoT technology with a 5G communication system for supporting a higher data rate than a 4G system. The disclosure is applicable to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety-related service, and the like) on the basis of a 5G communication technology and an IoT-related technology. The disclosure provides a method and apparatus for effectively performing a header compression or decompression procedure in a next-generation mobile communication system.