Base Station Terminal Selection for Wireless Congestion
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Solution Overview
Problem
Current congestion processing methods in wireless communication systems, such as refusing new users or releasing existing connections, severely affect Quality of Service (QoS) and are not optimal, especially when determining priority based solely on minimal reserved bandwidth, which can lead to inefficient resource utilization and performance issues.
Innovation Solution
A method and apparatus that calculate and sequence terminal priorities based on both minimal reserved bandwidth and bandwidth utilization ratios, with a threshold to determine secondary priorities, ensuring that terminals with lower bandwidth utilization ratios are prioritized during congestion, thereby optimizing resource allocation and reducing the impact on QoS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the priority of congestion processing is determined only according to the minimal reserved bandwidth, then the congestion control can be implemented, but the resource utilization efficiency and system performance are severely affected
Solution Approach 1:
The patent changes the parameter basis for priority determination from a single parameter (minimal reserved bandwidth) to multiple parameters (minimal reserved bandwidth and bandwidth utilization ratio). This allows the system to consider both the resource reservation needs and the actual resource usage efficiency, thereby improving resource utilization while maintaining congestion control capability
Solution Approach 2:
The patent creates a composite evaluation metric by combining minimal reserved bandwidth and bandwidth utilization ratio. This composite approach类似于creating a composite material, where the strengths of both parameters are combined to achieve better overall performance in congestion processing priority determination
2Ease of operation
If traditional congestion processing methods are used (refusing new users or releasing current connections), then congestion can be controlled, but the Quality of Service experience is severely affected
Solution Approach 1:
The patent applies local quality by differentiating the treatment of different terminals based on their individual characteristics (minimal reserved bandwidth and bandwidth utilization ratio). Instead of uniform congestion control that affects all users equally, the system identifies specific terminals for handover or release based on their priority scores, thereby minimizing impact on QoS while achieving congestion control
Solution Approach 2:
The patent introduces an intermediary mechanism (priority determination based on multiple parameters) between the congestion control action and the terminal selection. This intermediary layer allows for more nuanced decision-making, selecting terminals that are less critical to QoS for congestion processing, thus protecting overall service quality
3Ease of operation
If terminals with similar minimal reserved bandwidth differences are processed, then the congestion control can be applied, but the bandwidth utilization ratios vary greatly leading to suboptimal system throughput
Solution Approach 1:
The patent addresses this issue by changing the evaluation parameters to include both minimal reserved bandwidth and bandwidth utilization ratio. When minimal reserved bandwidth differences are small, the bandwidth utilization ratio becomes the differentiating factor, allowing the system to identify terminals that would result in better overall throughput if selected for handover or release
Data Source
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AI summary
The present invention discloses a method for selecting a terminal during congestion processing, includes: obtaining minimal reserved bandwidth and bandwidth utilization ratio of each terminal which has accessed a network; when congestion occurs, a base station determining initial priorities of congestion processing of the terminals, obtaining secondary priorities of congestion processing of the terminals according to a size relationship between a difference percent of minimal reserved bandwidths and a set threshold, and bandwidth utilization ratios; and sequencing the obtained secondary priorities, and selecting one or more terminals to process the congestion. The present invention further discloses an apparatus for selecting a terminal during congestion processing, includes an obtainment unit and a terminal selection unit and so on. Therefore, the present invention is able to effectively, rapidly and reasonably determine the priorities of congestion processing of all current terminals when the congestion occurs in the communication system.