Speed-Based Session Handover Logic for Mobile Networks
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Solution Overview
Problem
In telecommunications, excessive handovers between small cells and macrocells due to signal strength-based handovers result in a higher number of dropped calls and a degraded user experience, especially when mobile devices are moving at high speeds.
Innovation Solution
Implementing a system that selectively hands over sessions based on the speed of the mobile device, using signal strength and cell type information to determine whether to transfer the session to a neighboring cell, thereby avoiding unnecessary handovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If handover is performed based on signal strength alone, then connection quality is improved, but excessive handovers occur when mobile devices move at high speeds
Solution Approach 1:
The patent applies dynamics by making the handover decision process adaptive to the mobile device's movement state. The system dynamically adjusts handover parameters based on detected speed information: when high speed is detected, handover thresholds are modified or handovers are suppressed; when low speed is detected, normal signal-strength-based handovers proceed. This dynamic adaptation resolves the contradiction by allowing connection quality optimization at low speeds while preventing excessive handovers at high speeds.
2Ease of operation
If frequent handovers are performed to maintain optimal signal strength, then user experience is improved, but network stability deteriorates due to excessive handovers
Solution Approach 1:
The patent implements feedback by continuously monitoring mobile device speed and using this information to regulate handover decisions. The system establishes a feedback loop where speed detection results directly influence handover parameter adjustments: high speed triggers suppression of handovers to maintain network stability, while low speed allows normal handover operations for optimal user experience. This feedback mechanism resolves the contradiction by adapting network behavior to actual device movement conditions.
Data Source
AI summary
A device is configured to establish a session with a mobile device. The session may allow the mobile device to communicate with or via an operator network via the device. The device may determine a speed at which the mobile device is traveling. The device may determine a cell type for a neighbor base station. The cell type may indicate a type of cell that the neighbor base station services. The device may selectively hand over the session to the neighbor base station based on the speed at which the mobile device is traveling and the cell type for the neighbor base station.