Mobile Device Group Connection Management via Leader Coordination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing connection management methods for mobile device groups, particularly in D2D and V2V communication systems, face challenges in efficiently handling handovers and leader swaps due to varying signal quality conditions, leading to potential disconnections and resource inefficiencies.
Innovation Solution
A connection management method where a leader mobile device coordinates handovers and leader swaps within a mobile device group by measuring signal qualities and determining optimal handover procedures, including joint and half handovers, and leader swaps to maintain stable communication links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional handover procedures are used for each mobile device individually, then connection management is simple, but communication stability deteriorates due to potential disconnections during handover
Solution Approach 1:
The patent merges multiple individual handover procedures into a single group handover operation. The network device coordinates handover for the entire mobile device group simultaneously, where devices that need to handover together do so in a coordinated manner, reducing disconnection risks and improving communication stability during the handover process.
Solution Approach 2:
The patent introduces a network device as an intermediary to coordinate handover operations. The network device receives measurement reports from mobile devices, determines handover necessity for the group, and sends handover commands to multiple devices simultaneously, acting as a mediator that simplifies the complexity while ensuring reliable handover execution.
2Productivity
If individual handover procedures are performed for each mobile device, then device autonomy is maintained, but resource efficiency deteriorates due to redundant signaling and processing
Solution Approach 1:
The patent combines multiple individual handover procedures into a single group handover operation. The network device processes handover decisions for multiple devices simultaneously, reducing redundant signaling and processing. Measurement reports and handover commands are managed at the group level, improving productivity while reducing the quantity of signaling overhead.
3Reliability
If leader mobile device remains fixed in the group, then group structure is simple, but communication stability deteriorates when leader experiences poor signal quality
Solution Approach 1:
The patent implements a dynamic leader selection mechanism where the leader mobile device is not fixed but can be changed based on signal quality conditions. When the current leader experiences poor signal quality, the network device can select a new leader from other devices in the group, ensuring communication stability while adapting to changing channel conditions.
Solution Approach 2:
The patent uses feedback from measurement reports to determine when leader change is necessary. The network device monitors signal quality of the leader device and, when deterioration is detected, triggers a leader change process. This feedback mechanism ensures communication stability by maintaining an optimal leader while managing the complexity of leader selection dynamically.
4Measurement precision
If measurement reporting is performed by all mobile devices, then measurement accuracy is improved, but resource consumption deteriorates due to increased uplink traffic
Solution Approach 1:
The patent extracts the measurement reporting function from all mobile devices and concentrates it on the leader device only. The leader mobile device performs measurements and reports signal quality information to the network device, eliminating the need for other devices in the group to perform redundant measurements. This reduces uplink traffic volume while maintaining measurement precision through the leader's comprehensive monitoring role.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Disclosed is a connection management method for mobile device group, where the mobile device group includes a mobile device configured as a leader and a number of mobile devices configured as followers. The connection management method includes: in response to a measurement control from a first base station, the leader acquires signal quality measurement reports of all the mobile devices in the mobile device group corresponding to the first base station and a second base station, and signal quality measurement reports of all the followers in the mobile device group corresponding to the leader; the first base station determines whether to perform a handover according to the signal quality measurement reports received from the leader; and when the first base station determines to perform the handover, the first base station determines to perform a joint handover procedure or a half handover procedure according to the signal quality measurement reports.