Wireless Resource Allocation Minimizing User Waiting Time
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Solution Overview
Problem
Current resource allocation methods in HetNets with COMP and CA do not optimize user-felt communication quality while considering UE request data amounts and communication quality demands.
Innovation Solution
A control device calculates allocation information for wireless resources across multiple base stations to user devices, minimizing estimated waiting time by dividing request data by available bandwidth, using maximum transmission power as a constraint, and outputs this information to optimize communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless resources are allocated based on availability (SINR threshold) to ensure connection reliability, then connection reliability is improved, but user-felt communication quality is not optimized because request data amounts and allocated communication capacity are not considered
Solution Approach 1:
The patent changes the resource allocation parameter from binary availability (SINR threshold) to continuous estimated waiting time calculation. By dividing request data amount by available bandwidth, the system creates a new parameter that reflects both connection reliability and user-perceived quality, enabling optimization beyond simple threshold-based allocation.
Solution Approach 2:
The patent introduces estimated waiting time as an intermediary metric that bridges connection reliability and communication quality. This intermediary parameter allows the system to balance SINR-based reliability requirements with data amount-based quality requirements, resolving the contradiction between the two objectives.
2Adaptability or versatility
If the number of control items is increased to manage COMP, CA, and HetNet configurations, then resource allocation flexibility is improved, but real-time optimal allocation becomes difficult due to the large number of control parameters
Solution Approach 1:
The patent extracts the essential allocation decision from complex multi-parameter control by focusing only on estimated waiting time calculation and minimization. By taking out the core optimization objective from the complex COMP/CA/HetNet control framework, the system achieves real-time optimization without being overwhelmed by the full complexity of all control parameters.
Solution Approach 2:
The patent applies local quality optimization by calculating estimated waiting time for each user equipment individually based on its specific request data amount and available bandwidth. This localized approach allows real-time optimization for each user without requiring global optimization of all control parameters simultaneously.
3Ease of operation
If wireless resources are allocated without considering request data amounts, then allocation simplicity is maintained, but communication quality is not optimized for users with different data requirements
Solution Approach 1:
The patent performs preliminary calculation of estimated waiting time by dividing request data amount by available bandwidth before resource allocation. This preliminary action provides a quantitative basis for allocation decisions that balances simplicity with quality optimization, allowing the system to prioritize users based on their specific data requirements.
Data Source
AI summary
A control device of the present invention is for calculating allocation information regarding the allocation of wireless resources of a plurality of base stations to a plurality of user devices. The control device includes: information managing means for storing request data amounts of the user devices; calculating means for calculating an estimated waiting time for each of the user devices by dividing the request data amount by an available bandwidth, and, using the maximum transmission power of the base stations as a constraint, calculating the allocation information regarding the allocation of the wireless resources of the base stations to the user devices so as to minimize the estimated waiting time of the user device having the highest estimated waiting time; and outputting means for outputting the allocation information that was calculated by the calculating means.