Access Network Device Congestion Processing via Core Network Migration
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Solution Overview
Problem
In wireless communication systems, core network devices can experience congestion when multiple terminal devices access the same network, leading to poor user experience due to insufficient load balancing between different core network devices.
Innovation Solution
A congestion processing method that involves an access network device receiving a message from a source core network device indicating overload, and subsequently migrating terminal devices from the source core network device to a target core network device, which supports a different communication system, to alleviate congestion and balance load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple terminal devices access the same core network device, then the core network device can provide services to more users, but congestion occurs leading to poor user experience
Solution Approach 1:
The patent segments the core network services by introducing multiple core network devices (first and second core network devices) that support different communication systems. Terminal devices are divided into different groups based on their access capabilities, with some accessing via the first core network device and others via the second core network device. This segmentation distributes the load across multiple network paths, preventing congestion at any single core network device while maintaining service capability for a large number of terminals.
2Reliability
If terminal devices are migrated from source to target core network device, then load balancing is achieved, but connection establishment complexity increases
Solution Approach 1:
The access network device performs preliminary actions by determining which terminal devices support the second communication system before congestion occurs. It proactively establishes connections between these terminal devices and the second core network device in advance. When congestion is detected at the first core network device, the pre-established connections enable rapid migration of terminal devices to the second core network device without complex real-time negotiation, thus achieving load balancing while minimizing connection establishment complexity.
Data Source
AI summary
The present application provides a congestion processing method and device. The method includes: an access network device receives a first message transmitted by a source core network device, where the first message is used for indicating that the source core network device is overloaded; and the access network device, according to the first message, performs an operation of migrating the terminal device from the source core network device to a target core network device, where the target core network device and the source core network device support different communication systems. The congestion processing method according to the present application can solve the congestion problem of a core network device, realize load balancing between core network devices, and thereby improving user experience.