Cellular Handover List for Multiple Target Cells
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Solution Overview
Problem
Current cellular network handover procedures often result in communication disruptions during handover failures, as they typically specify only one target cell, despite multiple neighboring cells providing strong signals, leading to increased handover failure rates and communication interruptions.
Innovation Solution
The method involves transmitting handover information that includes a list of multiple target cells with their communication particulars to the mobile device, allowing it to attempt connections to alternative cells in case of handover failure, thereby reducing communication disruptions and improving network reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only one target cell is specified in handover information, then the handover procedure is simple and device complexity is reduced, but handover failure rate increases and communication continuity deteriorates when the single target cell is unavailable
Solution Approach 1:
The patent segments the single target cell specification into multiple target cells in a list. Instead of providing only one target cell, the network component provides a list of multiple target cells (first target cell, second target cell, etc.), each with their own communication particulars. This segmentation allows the mobile device to have multiple fallback options, reducing handover failure rate while maintaining manageable complexity through structured information organization.
Solution Approach 2:
The patent applies preliminary action by pre-preparing multiple target cells and their communication particulars before the handover is executed. The network component identifies and prepares multiple candidate target cells in advance, storing their communication particulars (frequencies, access parameters, etc.) so that when handover is needed, the mobile device can immediately attempt connections without additional preparation time, thus improving handover success rate.
2Reliability
If multiple target cells are provided in handover information, then handover reliability and communication continuity are improved, but the amount of information transmitted and processing required increases
Solution Approach 1:
The patent extracts only the essential communication particulars needed for handover from the complete cell configuration data. Instead of transmitting full cell configuration information for multiple target cells, the system extracts and transmits only the critical elements (frequencies, access parameters, cell identifiers) necessary for the mobile device to connect to target cells, thereby reducing information volume while maintaining handover reliability.
Solution Approach 2:
The patent changes the parameter representation by providing communication particulars in a optimized format. Rather than transmitting complete cell configuration sets, the system transmits simplified parameter sets that include only the essential handover information (frequencies, access parameters, cell IDs), reducing the quantity of information while enabling successful handover to multiple target cells.
3Loss of time
If the mobile device attempts to connect to alternative target cells upon handover failure, then communication interruption time is reduced, but the device must process and manage multiple cell options increasing operational complexity
Solution Approach 1:
The patent applies preliminary action by pre-organizing multiple target cells with their communication particulars in a ready-to-use list before handover execution. The mobile device receives the structured list of alternative target cells with all necessary connection information already prepared, eliminating the need for complex real-time cell search and parameter configuration during handover failure, thus reducing communication interruption time while keeping device operation simple.
Solution Approach 2:
The patent enables self-service by providing the mobile device with autonomous capability to attempt connections to multiple target cells using the pre-provided communication particulars. The device can independently manage the handover attempts to different target cells without requiring continuous network control or complex processing algorithms, simplifying operation while reducing interruption time through efficient self-managed reconnection attempts.
Data Source
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AI summary
A method in a network component for use in a cellular network comprises transmitting handover information from the network component to a mobile device. The handover information comprises information including information of a plurality of target cells with which the mobile device may subsequently communicate. A corresponding method in a mobile device is also provided.