Swarm Handover Coordination Using Leading-Edge Cell Measurements
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing handovers, particularly for swarms of mobile devices crossing cell boundaries, which can lead to data speed reduction, dropped connections, and network infrastructure deterioration due to the sudden burden on target cells during simultaneous handovers.
Innovation Solution
Implementing a system where leading-edge devices within a swarm measure and communicate cell boundary information to other devices and the network, allowing for pre-processing and coordinated handovers, and utilizing device-to-device communication to assist in completing handovers, especially in Xcell scenarios where devices move rapidly near cell towers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional handover procedures are used for swarms of mobile devices, then handover completion is achieved, but network infrastructure deteriorates and connection stability decreases due to sudden burden on target cells
Solution Approach 1:
The patent implements preliminary handover preparation by having leading-edge devices in a swarm measure and report cell boundary information before the actual handover occurs. The network pre-identifies devices approaching cell boundaries and pre-configures handover parameters, distributing the processing burden over time rather than concentrating it at the moment of handover execution. This prevents sudden infrastructure overload while maintaining connection stability.
Solution Approach 2:
The patent segments the swarm into multiple groups based on their proximity to cell boundaries and handover timing. Instead of processing all handovers simultaneously, the network handles different device groups in sequence or parallel with distributed load, preventing any single target cell from being overwhelmed. This segmentation approach distributes the harmful burden across multiple time slots and network resources.
2Speed
If simultaneous handovers are processed for all devices in a swarm, then handover speed is maintained, but data speed reduction and dropped connections occur
Solution Approach 1:
The network performs preliminary measurements and handover preparations for devices in the swarm before actual handover execution. Leading-edge devices measure cell boundary information and report to the network in advance, allowing the network to pre-calculate optimal handover timing and parameters. This ensures rapid handover execution without compromising data throughput, as the heavy processing occurs beforehand when network resources are more available.
Solution Approach 2:
The patent implements dynamic handover scheduling that adapts to real-time network conditions and device positions. The network continuously monitors swarm movement and adjusts handover timing, prioritizing devices based on their proximity to boundaries and current data traffic demands. This dynamic approach maintains fast handover speeds while preventing data speed reduction by coordinating handovers with network capacity availability.
3Reliability
If leading-edge devices communicate cell boundary information to the network, then handover coordination improves, but device communication complexity increases
Solution Approach 1:
The patent merges the measurement and reporting functions into the existing device-to-device communication framework and standard uplink reporting mechanisms. Leading-edge devices use their regular communication channels to report cell boundary information, combining the handover assistance function with existing communication protocols rather than introducing separate complex communication paths. This reduces additional communication complexity while maintaining improved handover coordination.
Solution Approach 2:
The patent makes regular device communication channels multi-functional by enabling them to carry both standard data traffic and handover assistance information. The same uplink channels used for normal communication are also utilized for reporting cell boundary measurements and swarm position information. This universal usage of communication resources improves handover performance without requiring dedicated complex communication infrastructure.
Data Source
AI summary
An apparatus of a wireless device, such as a user equipment (UE), can include processing circuitry configured to perform one or more of the handover-related techniques disclosed herein. For example, when associated with moving with a plurality of mobile devices from coverage of a first cell to a second cell, the processing circuitry can detect the second cell. One or more parameters of the second cell can be measured. The one or more parameters can be communicated to one or more other mobile devices of the plurality of mobile devices.