AMF Dynamic Rerouting of Enhanced Relays for 5G Base Station Overload
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Solution Overview
Problem
In 5G mobile communication systems, communication quality can degrade when a base station becomes overloaded or experiences malfunctions, leading to inconvenience for users due to the lack of effective mechanisms for managing communication connections between user equipment (UE) and base stations.
Innovation Solution
A method involving a first access and mobility management function (AMF) that establishes control channel connections with enhanced relays (ERs) to reroute communication channels from an overloaded or malfunctioning base station to a second base station, ensuring data transmission to the UE through these ERs, thereby maintaining communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a UE establishes a communication connection with a first base station, then the UE can receive data through that base station, but when the first base station becomes overloaded or malfunctions, communication quality degrades and service continuity is compromised
Solution Approach 1:
The patent implements dynamic connection management where the network entity (AMF) can dynamically reassign ERs from an overloaded first base station to a second base station. This dynamic reallocation allows the system to adapt to changing load conditions and maintain communication quality by moving resources to healthier base stations without requiring manual intervention or fixed static assignments.
Solution Approach 2:
The system changes the connection parameter by reassigning enhanced relays (ERs) from one base station to another. When the first base station becomes overloaded or malfunctions, the AMF modifies the connection parameters by establishing new communication channels between the ERs and the second base station, thereby maintaining service continuity through parameter modification rather than complete connection failure.
2Device complexity
If the system maintains strict connection between UE and a single base station, then connection management is simplified, but when that base station fails or becomes overloaded, there is no effective mechanism for maintaining service
Solution Approach 1:
The patent introduces the Access and Mobility Management Function (AMF) as an intermediary that manages the connections between ERs and base stations. The AMF acts as a mediator that can reassign ERs from an overloaded first base station to a second base station, thereby maintaining service continuity without requiring complex direct management between UEs and multiple base stations. This intermediary simplifies the overall system while improving reliability.
Solution Approach 2:
The system segments the connection management by separating the control plane (managed by AMF) from the user plane (data transmission through ERs and base stations). This segmentation allows the AMF to independently manage base station assignments and reroute connections without affecting the overall system architecture, maintaining simplicity while enabling flexible reassignment for improved service continuity.
Data Source
AI summary
An example method performed by a first access and mobility management function (AMF) of a wireless communication system may include establishing a control channel connection with at least two enhanced relays (ERs) through a first base station managed by the first AMF; controlling the at least two ERs to establish a communication channel with a second base station distinct from the first base station through the control channel; and controlling the at least two ERs to transmit data received through the communication channel to a first user equipment (UE).