CMF-Based UE Registration to Reduce 5G Control Plane Latency
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently registering User Equipment (UE) and handling handover, leading to increased control plane latency and redundant functionalities due to point-to-point interactions between network functions.
Innovation Solution
A Connection Management Function (CMF) apparatus is introduced to manage UE registration and handover, acting as a single anchor point for all UE messages, enabling service-based interactions and reducing network latency through a hub that parses and delivers control messages directly to destination nodes using HTTP/2-like protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If point-to-point interactions are used between network functions for UE registration and handover, then current system simplicity is maintained, but control plane latency increases and redundant functionalities occur
Solution Approach 1:
The patent merges multiple network functions (AMF, SMF, PMF) into a single integrated Connection Management Function (CMF) that handles all connection-related operations. This consolidation eliminates the need for point-to-point interactions between multiple network functions, reducing control plane latency while maintaining functional completeness through a unified processing architecture.
Solution Approach 2:
The CMF apparatus is designed as a universal function that performs multiple tasks including UE registration, handover management, and connection control through a single service-based interface. This multi-functional approach replaces the previous distributed architecture where different network functions handled specific tasks, thereby reducing interaction complexity and latency.
2Reliability
If multiple network functions are involved in UE registration and handover processes, then functional coverage is improved, but redundant functionalities and system complexity increase
Solution Approach 1:
The patent combines the functionalities of AMF (Access and Mobility Management Function), SMF (Session Management Function), and PMF (Policy Management Function) into a single CMF apparatus. This merging maintains comprehensive functional coverage for UE registration, handover, and connection management while eliminating the redundant interactions and architectural complexity associated with multiple separate network functions.
Solution Approach 2:
The CMF apparatus implements a universal design that handles diverse connection management tasks through a unified service-based interface. This multi-functional approach ensures that all necessary functions (registration, handover, session management, policy control) are maintained while reducing system architecture complexity by replacing multiple specialized functions with one integrated platform.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method for registering a UE (124) in a telecommunication network (500) by a CMF apparatus (154). The method includes receiving a registration request from the UE through a network apparatus (2200). The CMF apparatus is selected by the network apparatus upon receiving a registration request message from the UE. Further, the method includes sending an authentication request message and a UE capability enquiry request message to the UE through the network apparatus. Further, the method includes receiving an authentication response message and a UE capability response message comprising UE capability from the UE through the network apparatus. Further, the method includes sending a security mode command to the UE through the network apparatus. Further, the method includes receiving a security mode complete response from the UE through network apparatus. Further, the method includes sending a registration accept message to the UE through network apparatus.