RAN Congestion Reporting for UPF Packet Marking Clarity
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Solution Overview
Problem
In 5G systems, the radio access network (RAN) and user plane function (UPF) struggle to accurately determine the type of congestion information to report, leading to unclear processing of congestion-related information due to differing meanings of reported percentages, affecting congestion situation and data packet marking.
Innovation Solution
A congestion information manipulation method and apparatus that allows communication devices to acquire and report specific types of congestion information, including congestion situation and data packet marking, enabling precise processing by the UPF.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the RAN reports congestion information as a percentage, then the UPF can process the information, but the meaning of the percentage is ambiguous (congestion level vs. data packet marking ratio)
Solution Approach 1:
The patent segments the ambiguous congestion information into two distinct types: first congestion information (congestion level percentage) and second congestion information (data packet marking ratio). This segmentation eliminates the ambiguity by clearly distinguishing between the two meanings of percentage reporting, allowing the UPF to process each type appropriately based on its specific function.
2Ease of operation
If the RAN reports congestion information without clear indication, then the reporting process is simple, but the UPF cannot determine how to process the information
Solution Approach 1:
The patent introduces a third communication device (such as a network controller or management system) as an intermediary that sends indication information to the RAN. This intermediary provides clear guidance on which type of congestion information the RAN should report, ensuring that the reporting process remains simple while the UPF receives reliably identifiable information for accurate processing.
3Adaptability or versatility
If the UPF processes both types of congestion information, then all congestion scenarios are covered, but the processing logic becomes complex
Solution Approach 1:
The patent implements dynamic processing in the UPF where the processing logic adapts based on the type of congestion information received. The UPF dynamically selects between two processing paths: one for congestion level information (first congestion information) and another for data packet marking (second congestion information). This dynamic approach maintains versatility while managing complexity through conditional logic rather than unified complex processing.
Data Source
AI summary
An embodiment of this application provides a congestion information manipulation method. The method includes: acquiring, by a first communication device, first information, where the first information includes first request information for requesting monitoring of congestion; and reporting, by the first communication device, first congestion information or second congestion information based on the first information, where the first congestion information is information for describing a congestion situation, and the second congestion information is information for describing data packets requiring congestion marking.