Smart ANR Management for NSA Devices
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Solution Overview
Problem
Dual connectivity mobile devices face connection failures when moving between base stations lacking neighbor relations, as existing systems are unable to facilitate the creation of neighbor relations between adjacent cells without pre-existing relations, leading to dropped connections and network disruptions.
Innovation Solution
A method that communicates with User Equipment (UE) devices using multiple wireless protocols, determines proximity to a neighbor cell absent from the neighbor relations table, and adds the neighbor cell by switching to a single protocol, decoding necessary identifiers, and updating the relations table, allowing for seamless handovers and maintaining connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dual connectivity mobile devices move between base stations without pre-existing neighbor relations, then connection reliability deteriorates and handover fails, but establishing neighbor relations requires complex system coordination and protocol switching
Solution Approach 1:
The patent uses the UE device as an intermediary to facilitate neighbor relation establishment between base stations. The UE decodes the target cell's broadcast information ( obtaining ECGI and PCI) and reports it to the source base station, enabling the source base station to add the target cell to its neighbor relation table without direct communication between base stations.
Solution Approach 2:
The patent changes the operational mode of the UE device by switching between dual connectivity mode and single connectivity mode. When neighbor relation establishment is needed, the UE temporarily switches from using both LTE and 5G protocols to using only LTE protocol, enabling it to decode LTE broadcast information from the target cell and report it to establish the neighbor relation.
2Reliability
If the system requires pre-existing neighbor relations for handover, then handover process simplifies, but connection stability deteriorates when moving between cells without established relations
Solution Approach 1:
The patent performs preliminary actions by having the source base station proactively add the target cell to the neighbor relation table before handover is needed. This is achieved by the UE decoding the target cell's broadcast information and reporting it to the source base station, which then pre-establishes the neighbor relation, ensuring smooth handover when the UE moves to the target cell.
3Productivity
If the UE device continuously uses dual connectivity protocols, then data transfer rate improves, but ability to decode and report neighbor cell identifiers deteriorates
Solution Approach 1:
The patent makes the UE's protocol usage dynamic rather than static. The UE switches between dual connectivity mode (using both LTE and 5G protocols for high data transfer) and single LTE connectivity mode (for decoding neighbor cell information). This dynamic switching allows the UE to maintain high productivity during normal operation while being capable of detecting and reporting neighbor cell identifiers when needed.
Data Source
AI summary
Systems, apparatuses, methods, and computer programs that communicate with a User Equipment (UE) device that is simultaneously using a first wireless communication protocol and a second wireless communication protocol; determine the UE device is proximate to a neighbor cell; determine the neighbor cell is absent from a neighbor relations table; cause the UE device to cease simultaneously using the first wireless communication protocol and the second wireless communication protocol; cause the UE device to only use the first wireless communication protocol; receive information while the UE device is only using the first wireless communication protocol; and use the information to add the neighbor cell to the neighbor relations table.