PDU Session Importance Mapping for Priority-Aware 5G Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing transmission errors and drops of protocol data units (PDUs) without fully understanding the structure of user data, leading to potential loss or corruption of user data, particularly in applications like extended reality (XR) where importance values for PDU sets are not clearly defined.
Innovation Solution
A method and apparatus for determining the importance of PDU sets based on frame types and reference relationships, using a range of 0 to 15 integer values, to enable efficient transmission scheduling and resource utilization in the transmission layer, even without understanding the entire user data structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If transmission layer manages transmission errors and drops without understanding user data structure, then transmission control is simplified, but user data loss or corruption occurs
Solution Approach 1:
The patent segments user data into PDU sets with assigned importance values (0-15), allowing the transmission layer to manage different segments differently based on their importance level without needing to understand the overall data structure, thus resolving the contradiction between simplified control and data integrity
Solution Approach 2:
The patent applies local quality by assigning different importance values to different PDU sets based on their specific characteristics (e.g., frame type, reference relationships), enabling the transmission layer to prioritize critical data units locally while maintaining overall simplified transmission control
2Adaptability or versatility
If importance values are not defined for PDU sets in XR applications, then transmission processing is generalized, but data loss occurs in critical applications
Solution Approach 1:
The patent introduces importance values as a new parameter (range 0-15) that can be configured for different PDU sets, allowing the system to maintain generalized transmission processing while enabling application-specific protection through parameter adjustment without changing the overall system architecture
3Device complexity
If all PDU sets are treated equally in transmission, then transmission scheduling is simplified, but critical data units do not receive priority processing
Solution Approach 1:
The patent applies local quality by assigning different importance values to different PDU sets, enabling the transmission layer to prioritize critical data units locally through importance-based scheduling while maintaining overall simplified transmission control without uniform treatment
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3
AI summary
The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. According to the present disclosure, provided is a method for supporting processing of a protocol data unit (PDU) session on the basis of importance of a PDU set in an application function (AF) of a wireless communication system, the method comprising the operations of: transmitting a request message relating to the PDU session to a first entity of a 5G system (5GS); and receiving a response message from the first entity in response to the request message, wherein the request message includes at least one parameter representing the importance of the PDU set, and a value of the importance is one integer determined in a range of 0 to 15 on the basis of a frame type of the PDU set.