5G Gateway Session Pre-establishment for Mobile Service Continuity
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Solution Overview
Problem
Existing mobile communication networks face service interruptions when user equipment moves from a 2/3G network to a 5G network, as they need to re-access the 5G network, disrupting ongoing services and preventing service continuity.
Innovation Solution
A service continuity implementation method that involves a serving node device determining if user equipment has 5G capability or if the user is a 5G user when attached to a 2/3G network, and then selecting a 5G gateway and establishing a session with it, ensuring that the same 5G gateway serves the user equipment when it moves to the 5G network, maintaining the user's address unchanged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment moves from 2/3G network to 5G network using conventional technology, then the user equipment can access the 5G network, but service continuity is interrupted and services are disrupted
Solution Approach 1:
The patent applies preliminary action by establishing a session between the serving node device and the 5G gateway while the user equipment is still attached to the 2/3G network. This pre-establishment of the session ensures that when the user equipment moves to the 5G network, the service connection is already in place, avoiding service interruption and maintaining continuity.
2Adaptability or versatility
If user equipment re-accesses the 5G network when moving from 2/3G network, then the user equipment can connect to 5G network, but the user's address changes and service continuity is lost
Solution Approach 1:
The patent implements universality by enabling the 5G gateway to serve multiple network types (2/3G and 5G networks). The same 5G gateway that the user equipment connects to in the 5G network is also the gateway that the serving node device establishes a session with in the 2/3G network. This multi-functional approach ensures that the user's address remains unchanged during network transitions, maintaining service continuity.
3Ease of operation
If conventional technology is used for 5G network access, then user equipment can access 5G network, but data services are interrupted during network movement
Solution Approach 1:
The patent applies continuity of useful action by ensuring that the data service connection remains active and uninterrupted during network movement. The serving node device establishes a session with the 5G gateway in advance, and this session maintains the data service connection continuously as the user equipment moves from 2/3G to 5G network, preventing any interruption in data services.
Data Source
AI summary
A service continuity implementation method, a related device, and a system, where when a user equipment is attached to a 2/3G network, a serving node device determines that the user equipment has a 5G capability or a user corresponding to the user equipment is a 5G user. Then, the serving node device selects a 5G gateway for the user equipment, and establishes a session with the 5G gateway. In this way, when the user equipment subsequently moves to a 5G network, the same 5G gateway serves the user equipment, and an address of the user may remain unchanged when the user equipment moves from the 2/3G network to the 5G network, thereby implementing service continuity of the user.