Terminal Resource Utilization Threshold for Congestion Control
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Solution Overview
Problem
Current congestion control mechanisms in communications systems require terminals to frequently measure and adjust transmission resource utilization thresholds for each data packet transmission period, leading to complex operations and potential transmission conflicts due to frequent resource reselections.
Innovation Solution
A method where a terminal determines a single transmission resource utilization threshold for a preset time period, allowing for the selection of a target transmission resource that maintains utilization below the threshold throughout the period, reducing the need for periodic measurements and reselections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal measures resource utilization in each transmission period and determines transmission resource utilization threshold for each data packet transmission, then the transmission resource utilization can be controlled to prevent congestion, but the operation procedure becomes complex and frequent resource reselections occur
Solution Approach 1:
The patent segments the time period into multiple transmission periods and determines the transmission resource utilization threshold at the beginning of each transmission period rather than for each individual data packet. This segmentation approach reduces the frequency of threshold determination operations while still maintaining congestion control across multiple transmission periods, thereby simplifying the operation procedure while preserving reliability
Solution Approach 2:
The patent performs preliminary determination of the transmission resource utilization threshold at the beginning of a transmission period before actual data packet transmissions occur. By establishing the threshold in advance for the entire transmission period, the terminal avoids repeated measurements and threshold determinations for each data packet, thus reducing operational complexity while maintaining effective congestion control
2Adaptability or versatility
If the terminal frequently measures resource utilization and performs resource reselection, then the transmission resource utilization threshold can be adjusted dynamically, but transmission conflicts increase and system stability decreases
Solution Approach 1:
The patent implements periodic measurement of resource utilization at the beginning of each transmission period rather than continuously or for each data packet. This periodic approach provides dynamic adaptation to changing channel conditions while reducing the frequency of resource reselection operations, thereby maintaining adaptability while improving transmission resource utilization stability and reducing transmission conflicts
3Measurement precision
If the terminal determines transmission resource utilization threshold for each transmission period, then the congestion control is precise, but the measurement and determination operations increase
Solution Approach 1:
The patent segments the measurement operation to occur once per transmission period rather than for each data packet, maintaining measurement precision at the transmission period level while significantly improving operation efficiency by reducing the total number of measurements and determinations required
Solution Approach 2:
The patent applies partial action by determining the transmission resource utilization threshold for the entire transmission period based on a single measurement at the beginning, rather than performing excessive measurements for each data packet. This approach maintains sufficient precision for congestion control while avoiding unnecessary redundant operations that would reduce productivity
Data Source
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AI summary
This application discloses a data packet transmission method and a terminal, where the method includes: determining, by a terminal, a transmission resource utilization threshold, where the transmission resource utilization threshold indicates maximum transmission resource utilization for transmitting a to-be-transmitted data packet by using a transmission resource in a resource pool in a preset time period, and the transmission resource utilization threshold is determined by resource utilization of the transmission resource in the resource pool; selecting, by the terminal, a target transmission resource in a first time period from the resource pool based on the transmission resource utilization threshold, so that transmission resource utilization of the transmission resource in the resource pool used by the terminal in a second time period is less than or equal to the transmission resource utilization threshold, where the second time period includes the first time period, and a time length of the first time period is greater than that of a transmission period of the to-be-transmitted data packet; and sending, by the terminal, the to-be-transmitted data packet on the target transmission resource. According to the method, an operation procedure in which the terminal determines the target transmission resource in a congestion control mechanism is simplified.