5G UPF Data Session Control Signaling Reduction
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Solution Overview
Problem
The current 5G technology experiences delays in data session control due to the need for numerous signalings by the Session Management Function (SMF) when controlling data sessions across multiple User Plane Functions (UPFs), which can degrade the quality of Ultra-Reliable and Low-Latency Communications (URLLC) services.
Innovation Solution
Implementing a method where a data transceiver includes a session control unit, an information generation unit, and a packet transfer unit to reduce the number of signalings by generating master operation information and inserting it into data packets, allowing slave UPFs to perform data session control based on this information, thereby reducing the burden on the SMF.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the SMF performs identical signaling to each of multiple UPFs involved in one data session, then data session control can be achieved, but the number of signalings increases and delays occur
Solution Approach 1:
The patent merges the data session control signaling by having the SMF send a single signaling message to one selected UPF (master UPF) instead of sending identical signaling to all UPFs. The master UPF then distributes the necessary information to other UPFs (slave UPFs) through direct communication, reducing the total number of signaling interactions and minimizing control delays.
Solution Approach 2:
The patent introduces a master UPF as an intermediary between the SMF and other slave UPFs. The master UPF receives the control signaling from the SMF and acts as a mediator to distribute the data session information to other UPFs, thereby reducing the signaling burden on the SMF and decreasing overall control latency.
2Loss of information
If the SMF performs identical signaling to each of multiple UPFs, then complete data session information is provided to all UPFs, but the signaling burden on the SMF increases
Solution Approach 1:
The patent combines multiple separate signaling operations into a single signaling action. The SMF sends one consolidated signaling message to the master UPF containing all necessary data session information, which then distributes this information to other UPFs. This merging approach maintains information completeness while significantly reducing the signaling complexity and burden on the SMF.
Solution Approach 2:
The master UPF serves as an intermediary that receives complete data session information from the SMF in a single signaling interaction and then distributes this information to other slave UPFs. This intermediary approach ensures that all UPFs receive the necessary information while the SMF's signaling burden is reduced to a single communication act.
Data Source
AI summary
The present disclosure proposes a technology of, when a single data session based on communications between UPFs is controlled, reducing the number of signalings for data session control to reduce delays on the data session control, so that the requirements of a URLLS service supported in the 5G technology can be satisfied and the performance of the service performance can be supported.