Control Plane Session Management for Next-Gen Mobile Networks
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Solution Overview
Problem
Current mobile communication systems face inefficiencies in creating, modifying, and releasing sessions, particularly in next-generation networks where intermittent IoT data transmission requires optimized core network design to manage always-on or always-connected sessions effectively.
Innovation Solution
A control plane function entity in the next-generation mobile communication network is responsible for session management, interacting with the subscriber information server and policy control function to create, modify, or release sessions based on service type and user requests, ensuring efficient resource allocation and session handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sessions are created for all users during network attachment in traditional mobile communication systems, then real-time services like voice calls can be immediately supported, but network resources are wasted for delay-tolerant services and session management overhead increases significantly
Solution Approach 1:
The patent changes the session management parameter from 'always create session' to 'create session on demand based on service type'. The network now distinguishes between delay-tolerant services (no session during attachment) and real-time services (session created when needed), optimizing resource usage while maintaining service reliability
Solution Approach 2:
The patent prepares the network by establishing session management policies and service type classification mechanisms during network configuration, enabling efficient session creation only when necessary for real-time services without pre-creating sessions for all users
2Loss of energy
If sessions are created on-demand for delay-tolerant services only, then network resources are optimized, but real-time services may experience delays in connection establishment
Solution Approach 1:
The patent applies different session management strategies to different service types: delay-tolerant services use on-demand session creation for efficiency, while real-time services use immediate session creation when detected, optimizing both resource efficiency and connection speed for their respective requirements
Solution Approach 2:
The patent implements dynamic session management where the network adapts session creation timing based on service type detection. For real-time services, sessions are created immediately upon detection, while for delay-tolerant services, sessions are created only when data transmission is actually needed
3Adaptability or versatility
If the network creates sessions for all users regardless of service type, then all services are supported uniformly, but session management complexity and signaling overhead increase
Solution Approach 1:
The patent changes the session management approach from uniform treatment of all users to differentiated management based on service type parameters. The network now uses service type identification to determine whether to create sessions, reducing management complexity while maintaining support for both delay-tolerant and real-time services
Solution Approach 2:
The patent segments session management into two distinct paths: one for delay-tolerant services (no session during attachment) and one for real-time services (session created when detected). This segmentation reduces overall session management complexity by avoiding unnecessary sessions while maintaining versatility
4Loss of energy
If no sessions are created during attachment for IoT devices, then network resources are optimized for intermittent data transmission, but the network cannot immediately support real-time services like voice calls
Solution Approach 1:
The patent changes the session creation parameter from 'never create during attachment' to 'create when real-time service detected'. The network monitors service type and dynamically creates sessions when real-time services are identified, optimizing resources for intermittent IoT traffic while ensuring real-time services receive immediate support
Solution Approach 2:
The patent establishes service type detection and session creation policies in advance, enabling the network to immediately create sessions when real-time services are detected without delay, while maintaining resource optimization for delay-tolerant services
Data Source
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AI summary
One disclosure of the present specification provides a method for a control plane (CP) function entity creating a session, the CP function entity being in charge of managing a session in a next-generation mobile communication network. The method may comprise the steps of: receiving a connectivity request message from a terminal if the creation of a session is not included in a process by which the terminal attaches to a core network of the next-generation mobile communication; on the basis of information on the type of service to be provided to the terminal, deciding to create, for the terminal, a session that needs to be always-on, or in other words, always-connected; and transmitting, to the terminal, a connectivity completion message including information indicating the session that needs to be always-on, or in other words, always-connected.