Network Hub Edge Handover Latency Reduction
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Solution Overview
Problem
Current wireless communication systems experience significant latency during user equipment (UE) handover between wireless base stations due to the need for wireless signaling message transmission between the edge communication network and the wireless communication network core, which hinders seamless mobility and high-performance communication.
Innovation Solution
A network hub is configured to detect and process wireless signaling messages, such as S1 path switch requests, thereby eliminating the need for these messages to be transmitted to the wireless communication network core, allowing the hub to manage UE handovers and route data packets directly, reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless signaling messages are transmitted between the edge communication network and the wireless communication network core during UE handover, then the handover process follows standard protocol procedures, but the handover latency increases significantly
Solution Approach 1:
The patent extracts the signaling message processing function from the wireless communication network core and relocates it to the network hub in the edge communication network. This allows the handover signaling to be processed locally without requiring transmission to and from the network core, thereby eliminating the latency associated with core network signaling while maintaining protocol compliance.
Solution Approach 2:
The network hub acts as an intermediary between the wireless base stations and the wireless communication network core. It intercepts and processes handover signaling messages locally, serving as a mediator that prevents these messages from being transmitted to the network core, thus reducing latency while ensuring proper handover execution.
2Extent of automation
If wireless signaling messages are transmitted to the wireless communication network core during handover, then centralized control is maintained, but the handover speed decreases
Solution Approach 1:
The patent segments the handover control function into two parts: signaling message processing is handled locally by the network hub at the edge, while actual data traffic routing continues to be managed by the wireless communication network core. This segmentation allows fast local processing of handover signals while maintaining centralized control over data plane operations.
Solution Approach 2:
The network hub performs preliminary processing of handover signaling messages before they would otherwise be transmitted to the network core. By detecting and processing these messages in advance at the edge network, the system accelerates the handover process while the core network subsequently receives notification to update routing information, maintaining centralized coordination.
Data Source
AI summary
A method for reducing latency during handover of user equipment (UE) between wireless base stations includes (a) receiving, at a network hub in an edge communication network, a first wireless signaling message from a source wireless base station, (b) determining, from the first wireless signaling message at the network hub, occurrence of a handover of UE from the source wireless base station to a target wireless base station, (c) in response to determining occurrence of the handover, translating, at the network hub, an address of first data packets intended for the UE from an address of the source wireless base station to an address of the target wireless base station, and (d) forwarding the first data packets from the network hub to the target wireless base station.