Dynamic Uplink Bearer Allocation for Group Call Bandwidth
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Solution Overview
Problem
In wireless communication systems, especially in 3GPP LTE networks, there is a challenge in allocating uplink bearers during group calls, particularly when multiple emergency responders are present, leading to insufficient bandwidth and potential blocking of other important uplink traffic due to the lack of available resources.
Innovation Solution
A method and service network element that dynamically control the distribution of uplink bearers among user devices participating in a group call by identifying candidates for de-allocation and allocation based on user profiles, ensuring that uplink bearers are prioritized and allocated efficiently, thereby optimizing resource utilization and minimizing transmission delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If every user who is a group member is assigned an uplink bearer, then all users can transmit data simultaneously, but this blocks other important uplink traffic due to lack of available resources
Solution Approach 1:
The system dynamically allocates and deallocates uplink bearers based on real-time transmission needs. Users can be assigned bearers when they need to transmit and have them released when not needed, allowing the system to adapt to changing conditions and prioritize important traffic over time
Solution Approach 2:
The system changes the state of bearer allocation parameters dynamically. By adjusting which users have active bearers based on their current transmission requirements and priority levels, the system optimizes resource utilization while ensuring critical services maintain access to uplink resources
2Adaptability or versatility
If a large number of emergency responders are at the same location, then group call coverage is improved, but available bandwidth becomes insufficient to provide all responders with a bearer
Solution Approach 1:
The system applies different bearer allocation rules to different users based on their priority levels and service requirements. High-priority emergency services receive guaranteed bearer access while lower-priority users share remaining resources, allowing the system to support large groups while maintaining quality for critical services
Solution Approach 2:
Instead of providing bearers to all users simultaneously, the system provides bearers to only those users who currently need them or have high priority. This partial allocation approach ensures sufficient resources are reserved for critical services while still providing coverage to the entire group
Data Source
AI summary
A method and service network element are provided that control a distribution of multiple uplink bearers among multiple user devices participating in a group call. In response to receiving a trigger to reevaluate the multiple uplink bearers, one or more user devices of the multiple user devices are identified as candidates for de-allocation of uplink bearers based on a profile associated with each of the multiple user devices. Further, based on the profiles associated with each of the multiple user devices, one or more of the multiple user devices are identified as candidates for establishment of an uplink bearer. An uplink bearer, of the multiple uplink bearers, then is released from one or more of the user devices identified as candidates for de-allocation of uplink bearers, and an uplink bearer is established for one or more user devices identified as candidates for establishment of uplink bearers.