Trajectory-Based Cell Handover Configuration With Privacy Protection
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Solution Overview
Problem
Existing communication systems face challenges in precisely configuring target candidate cells during handover while ensuring user privacy and security, particularly in dynamic and complex environments, leading to inefficiencies and resource wastage.
Innovation Solution
A communication method where a first device implicitly transmits trajectory information to a second device, allowing the second device to determine target candidate cells accurately without revealing precise location data, using AI models and statistical analysis to predict future cell configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the source network device directly configures target candidate cells using precise location information, then the configuration precision is improved, but user privacy and security are compromised
Solution Approach 1:
The patent introduces an intermediary mechanism where the terminal device performs location-to-cell mapping instead of the network device directly using location information. The terminal device receives target location information from the network, independently determines target candidate cells based on its stored cell location data, and reports back only the cell identifiers. This intermediary approach allows the network to achieve precise handover configuration without directly handling or storing sensitive user location information, thereby resolving the contradiction between configuration precision and privacy protection.
2Reliability
If the source network device configures target candidate cells without using trajectory information, then user privacy is protected, but the configuration precision and handover success rate deteriorate
Solution Approach 1:
The patent applies preliminary action by having the terminal device pre-store location information of multiple candidate cells and pre-establish a mapping relationship between locations and cells before handover is needed. When handover is required, the terminal device can quickly determine target candidate cells based on the target location information received from the network, without needing to perform real-time location-to-cell mapping. This preliminary preparation enables fast and accurate handover decision-making while maintaining user privacy, as the terminal device independently processes location information without transmitting sensitive data to the network.
3Speed
If the system uses explicit location information for handover decisions, then the response speed is improved, but information loss and privacy risks increase
Solution Approach 1:
The patent extracts only the necessary handover decision-making information from the complete location data. Instead of transmitting or processing full location information (latitude, longitude, altitude), the system extracts and transmits only the target location identifier that is sufficient for the terminal device to determine candidate cells. This extraction approach maintains fast handover response by providing the terminal with the essential location reference it needs, while minimizing information loss and privacy risks by removing unnecessary detailed location data from the communication between network and terminal.
Data Source
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AI summary
The present application discloses a communication method and apparatus, a chip, a storage medium, a computer program product, and a computer program. The method includes that: a first communication device transmits first information to a second communication device. The first information implicitly indicates first trajectory information of the first communication device within a first time period, and the first trajectory information is configured to determine at least one target candidate cell.