eNB Group Resource Release in Trunking LTE Systems
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Solution Overview
Problem
The existing trunking communication systems face issues with slow resource release speed and low utilization ratio of group call resources, particularly in LTE technology, due to inefficient management of wireless resources, leading to resource wastage.
Innovation Solution
An evolved Node B (eNB) determines a target cell to release group resources by identifying unused or unutilized cells and sends instructions to release air interface and allocated group resources, either directly or through the trunking core network, optimizing the resource release process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the base station releases all group resources only when the core network or user initiates release, then the system maintains simplicity in resource management, but the resource release speed becomes slow and utilization ratio decreases
Solution Approach 1:
The base station proactively monitors the usage status of group call resources in each cell and identifies target cells with unused resources before formal release is initiated. This preliminary identification enables faster resource release when release is needed, as the base station already has prepared information about which resources can be released without waiting for core network or user initiation.
Solution Approach 2:
The base station autonomously determines which cells are target cells for resource release based on monitoring usage status, and proactively manages resource release decisions. This self-service capability allows the base station to optimize resource allocation without constant core network intervention, improving release speed while maintaining manageable complexity through automated local decision-making.
2Reliability
If the base station releases all group resources only when the core network or user initiates release, then the system maintains centralized control, but the resource utilization ratio becomes low due to waste
Solution Approach 1:
The base station continuously monitors the usage status of group call resources in each cell and uses this feedback information to identify target cells where resources are unused. This feedback mechanism enables the base station to maintain centralized control through coordinated resource management while simultaneously improving resource utilization by releasing resources in cells where they are not being used, thereby reducing waste.
Solution Approach 2:
The base station applies different resource management strategies to different cells based on local conditions. By identifying target cells with unused resources and treating them differently from cells with active usage, the system maintains centralized control while optimizing local resource allocation to reduce waste in specific cells where resources would otherwise be wasted.
3Productivity
If the base station proactively identifies and releases resources in target cells, then the resource release speed and utilization ratio improve, but the system complexity increases
Solution Approach 1:
The base station divides the group call resource management into segments: identifying target cells with unused resources, maintaining their identification for future release, and executing release when needed. This segmentation of the resource management process into discrete, manageable steps improves release speed by having pre-identified target cells ready for release, while keeping complexity manageable through structured segmentation of the overall management task.
4Loss of energy
If the base station proactively identifies and releases resources in target cells, then the resource utilization ratio improves by reducing waste, but the system complexity increases
Solution Approach 1:
The base station autonomously monitors resource usage status and identifies target cells with unused resources without requiring complex external coordination. This self-service capability reduces resource waste by proactively identifying and preparing for release of unused resources, while managing complexity through automated local decision-making that eliminates the need for complex centralized coordination for each monitoring and release decision.
Data Source
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AI summary
Disclosed are a group resource release method, device and system. The method includes: an evolved Node B (eNB) determines, from group cells which belong to the eNB, a target cell which needs to release a group resource; and the eNB sends to the target cell a message for instructing to release the group resource, wherein the message for instructing to release the group resource is used for instructing the target cell to release an air interface resource of the target cell and/or a group resource which is allocated to the target cell by the eNB. It is solved by the embodiment of the present invention the problems that the release speed is slow and the utilization rate of group call resources in a trunking group call is low, thus effectively improving the utilization rate of the group call resources in the group call.