PDU Set Charging Correction Using Offset Data for Dropped Packets
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Solution Overview
Problem
Existing wireless communication technologies do not support accurate charging enhancements for service data streams with high bandwidth, low latency, and high reliability requirements, leading to inaccurate charging results due to actively dropping packets.
Innovation Solution
A charging correction method involving sending charging offset information from a first network function to a second network function for PDU set based charging, enabling accurate charging corrections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packets are actively dropped to match QoS requirements, then service quality is improved, but charging accuracy deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-calculating the charging offset value before packet dropping occurs. The network function determines how many packets will be dropped based on QoS requirements and pre-computes the corresponding charging offset. This offset is then used to correct the charging count, ensuring accurate charging despite the dropped packets. The correction is prepared in advance rather than attempting to track each dropped packet individually.
Solution Approach 2:
The patent introduces a charging offset as an intermediary parameter that mediates between the actual packet transmission and the charging calculation. Instead of directly counting transmitted packets for charging purposes, the system uses this offset value to adjust the count. This intermediary mechanism allows the system to maintain accurate charging records even when packets are dropped to meet QoS requirements, as the offset compensates for the discrepancy between transmitted and charged packet counts.
2Measurement precision
If all packets are counted for charging, then charging accuracy is maintained, but QoS requirements cannot be met
Solution Approach 1:
The system performs preliminary calculation of the charging offset before packet dropping is executed. By determining in advance how many packets will be dropped to meet QoS requirements, the system can pre-compute the exact charging offset needed. This allows the system to maintain charging accuracy from the outset rather than attempting post-hoc corrections, ensuring both QoS satisfaction and accurate charging without contradiction.
3Device complexity
If charging correction is not performed, then system complexity is reduced, but charging accuracy deteriorates
Solution Approach 1:
The patent applies parameter changes by introducing a single correction parameter (charging offset) that transforms the charging calculation process. Instead of complex tracking of individual dropped packets or multiple correction factors, the system changes the charging parameter by adding this offset value. This simple parameter adjustment achieves accurate charging correction with minimal additional system complexity, as it requires only basic arithmetic operations on the charging count.
Data Source
AI summary
A charging correction method, includes: sending charging offset information to a second network function, wherein the charging offset information is used for a charging correction on a PDU set based charging.