Autonomous Access Point Switching for Ultra-Dense Network Handover
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Solution Overview
Problem
Conventional handover procedures in wireless communication networks are time-consuming and inadequate for Ultra Dense Network (UDN) deployments due to high frequency bands, leading to signal attenuation differences and potential service disruptions, especially in densely populated areas with sudden signal outages.
Innovation Solution
Implementing a method where an access point authorizes a user equipment (UE) to autonomously switch connections to target access points by sending a switching authorization message, allowing the UE to make decisions based on predefined conditions without further interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional network-initiated handover procedures are used, then connection switching can be performed with network control, but signaling overhead increases and service degradation occurs in ultra-dense networks
Solution Approach 1:
The UE is empowered to autonomously perform connection switching to target access points based on pre-configured parameters and real-time signal measurements, eliminating the need for continuous network-initiated handover commands. The UE independently monitors signal quality, selects suitable target APs from a pre-provided list, and executes switching without network intervention, thereby reducing signaling overhead while maintaining connection reliability.
Solution Approach 2:
The network pre-configures the UE with a list of potential target access points and handover parameters before the UE actually needs to switch connections. This preliminary configuration includes target AP identifiers, frequency information, and switching criteria, enabling the UE to perform rapid autonomous handovers without real-time network signaling, thus reducing signaling overhead in ultra-dense network scenarios.
2Reliability
If conventional handover procedures are used in high-frequency bands, then network control is maintained, but service interruption occurs due to signal attenuation and sudden outages
Solution Approach 1:
The network provides the UE with pre-configured target access point information and handover parameters in advance, including multiple candidate target APs and switching criteria. When signal attenuation or sudden outages occur in high-frequency bands, the UE can immediately execute switching to a pre-identified target AP without waiting for network commands, thereby minimizing service interruption time and ensuring continuous connectivity.
Solution Approach 2:
The system prepares multiple candidate target access points and pre-configures handover parameters before service degradation occurs. This cushioning approach ensures that when signal outages happen in ultra-dense high-frequency networks, the UE has ready-to-use target AP information and can seamlessly switch connections without service interruption, effectively cushioning against the harmful effects of signal attenuation.
3Quantity of substance
If autonomous UE switching is implemented, then signaling overhead is reduced, but network control and coordination are diminished
Solution Approach 1:
The network performs preliminary configuration by providing the UE with a pre-configured list of target access points, their identifiers, frequency information, and switching criteria. This upfront configuration reduces the complexity of autonomous switching by providing the UE with ready-made decision-making parameters, enabling simple rule-based autonomous handovers without complex real-time network coordination, thus reducing signaling overhead while maintaining manageable UE complexity.
Data Source
AI summary
An access point of a wireless communication network serves a connection to a user equipment. The access point determines a plurality of target access points. Further, the access point sends a message to the user equipment. The message indicates the plurality of target access points and authorizes the user equipment to autonomously switch the connection to one or more of the target access points.