Base Station VoIP Resource Allocation via Channel Quality Handovers
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Solution Overview
Problem
In cellular wireless networks, UEs with poor channel quality consume a disproportionately large share of air interface resources during VoIP communication, limiting the network's capacity to support concurrent VoIP calls, as they require more resources to maintain voice call quality.
Innovation Solution
A base station identifies UEs with high air interface resource allocation and predicts the resource allocation rate for new calls based on channel quality, selectively forcing handovers to free up resources for UEs with better channel quality, thereby optimizing resource allocation and supporting more concurrent VoIP calls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station allocates more air interface resources to UEs with poor channel quality to maintain voice call quality, then the call quality for these UEs is improved, but the network's capacity to support concurrent VoIP calls decreases
Solution Approach 1:
The base station performs preliminary identification of UEs with poor channel quality and proactively forces handovers before resource exhaustion occurs. By predicting which UEs will consume excessive resources and pre-emptively relocating them to other base stations, the system prevents resource depletion and maintains network capacity for concurrent calls while ensuring quality of service for vulnerable UEs.
2Productivity
If the base station serves more concurrent VoIP calls, then the network capacity is improved, but the air interface resources per call decrease, affecting call quality
Solution Approach 1:
The base station continuously monitors channel quality indicators and resource allocation rates for each UE. This feedback mechanism enables the base station to identify when a UE is consuming a disproportionate share of resources and to trigger handovers accordingly. The feedback loop ensures that resource allocation remains balanced across all concurrent calls, maintaining call quality while maximizing network capacity.
3Productivity
If the base station performs handover forcing for UEs with poor channel quality, then the resource allocation efficiency is improved, but the complexity of base station control increases
Solution Approach 1:
The base station uses handover forcing as a parameter change mechanism to transition UEs from a state of poor channel quality (where they consume excessive resources) to a state of better channel quality (where they consume fewer resources). By changing the serving base station parameter for identified UEs, the system efficiently reallocates resources without requiring complex resource management algorithms, thus improving resource allocation efficiency while keeping control complexity manageable.
Data Source
AI summary
To help manage resources in a cellular wireless communication system, a base station may track air interface resource allocation for each UE the base station is serving with a call and may identify one or more of the UEs or calls as candidates for handover from the base station on grounds that air interface resource allocation to each of the identified one or more UEs is high. Upon receipt of a request from a UE to initiate a new call, the base station may then predict based at least on that UE's channel quality what the air interface resource allocation rate will be for the requested call. And if the predicted rate for the given UE is threshold low, the base station may select one of the candidate UEs and force a handover of the selected UE's call from the base station.