Ethernet Header Compression and SPS Periodicity for IIoT Traffic
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Solution Overview
Problem
The periodicity interval of configured grant (CG) or semi-persistent scheduling (SPS) in existing systems fails to match the traffic mode of Ethernet, leading to unsatisfied real-time performance requirements in Industrial Internet of Things (IIoT) traffic, and resource configuration delays during terminal movement cause interruptions, while Ethernet header compression is not supported in 5G wireless systems, wasting air interface resources and complicating terminal coordination.
Innovation Solution
Implementing a resource periodicity configuration method that includes sending resource configuration information to UEs, enhancing link path processing through targeted cell resource pre-configuration, and compressing Ethernet headers to optimize traffic periodicity and ensure real-time performance, using methods such as Ethernet header compression and differential synchronization mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If Ethernet header compression is not implemented in 5G wireless systems, then air interface resources are wasted transmitting full Ethernet headers with each packet, but implementing header compression increases system complexity and requires coordination mechanisms between terminals
Solution Approach 1:
The patent extracts and removes redundant Ethernet header information from repeated packets by implementing header compression. Only essential changing fields are transmitted in compressed form, while static header portions are eliminated, directly reducing air interface resource consumption without requiring full header retransmission
Solution Approach 2:
The patent creates a universal header compression mechanism that works across multiple Ethernet packet types and 5G wireless scenarios. The compression scheme is designed to be broadly applicable to different traffic patterns and packet structures, providing a general solution rather than scenario-specific implementations
2Device complexity
If configured grant or semi-persistent scheduling uses fixed periodicity intervals, then resource allocation is simplified, but the periodicity interval cannot match Ethernet traffic modes leading to unsatisfied real-time performance requirements
Solution Approach 1:
The patent transforms fixed periodicity intervals into dynamic, flexible periodicity configurations that can adapt to Ethernet traffic characteristics. The system allows periodicity to be adjusted based on actual traffic patterns, enabling real-time performance optimization while maintaining manageable resource allocation through structured configuration parameters
Solution Approach 2:
The patent changes the periodicity parameter from fixed enumerated values to flexible configurable intervals that can be precisely tuned to match Ethernet traffic modes. By allowing periodicity to be configured based on traffic requirements rather than using predetermined intervals, the system achieves better real-time performance while maintaining resource allocation efficiency
3Ease of operation
If resource configuration is performed through handover instruction during terminal movement, then resource allocation follows standard procedures, but resource configuration delay causes traffic transmission interruption
Solution Approach 1:
The patent performs resource configuration in advance during handover preparation phases, before the actual handover execution. By pre-configuring resources at the target cell, the system eliminates configuration delays during the critical handover moment, ensuring continuous traffic transmission while maintaining standard handover procedures
4Adaptability or versatility
If multiple Ethernet terminals operate without clock alignment, then terminal independence is maintained, but coordination of execution timing becomes difficult when terminals need to execute the same instruction simultaneously
Solution Approach 1:
The patent introduces a differential synchronization mechanism that acts as an intermediary between independent Ethernet terminals. This mechanism provides timing reference and coordination information without requiring complete clock alignment, enabling simultaneous instruction execution while preserving terminal independence and operational flexibility
Data Source
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AI summary
Provided are a resource periodicity configuration method and device, a link processing and establishing method and device. Specifically, the resource periodicity configuration method includes: receiving, by a network side, a traffic mode and/or a clock accuracy capability reported by a user equipment (UE); and sending, by the network side, resource configuration information to the UE, where the resource configuration information carries at least one of: a periodicity factor of a configuration resource, a periodicity granularity of the configuration resource, or a periodicity length of the configuration resource; and the configuration information is used for indicating semi-persistent scheduling (SPS) traffic or configured grant (CG) traffic of the UE.