QoS Packet Marking for Accurate Downlink Charging Offset
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Solution Overview
Problem
The existing QoS mechanisms in wireless communication systems inaccurately charge for multimedia services due to active packet dropping by the radio access network, leading to incorrect charging results.
Innovation Solution
Implementing a method for processing information by network functions to accurately handle packet data unit (PDU) sets, including receiving and labeling actively dropped downlink data packets, and performing a charging offset based on the usage of these packets to correct the charging procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a general QoS mechanism is used for processing charging procedures, then the system is simple to operate, but the charging result accuracy deteriorates due to active packet dropping by the RAN
Solution Approach 1:
The patent segments the QoS handling process into distinct functional components: packet marking by the RAN, separate identification of dropped packets, and independent charging offset calculation. This segmentation allows each component to focus on a specific task, improving charging accuracy without overwhelming system complexity
Solution Approach 2:
The patent introduces an intermediary mechanism where dropped packets are marked with specific indicators before being forwarded to the charging system. This intermediary marking process enables the charging system to identify and correct for dropped packets without requiring complex real-time analysis of RAN operations
2Measurement precision
If actively dropped packets are identified and labeled, then the charging accuracy is improved, but the information processing complexity increases
Solution Approach 1:
The patent applies preliminary action by marking packets with drop indicators at the RAN before they reach the charging system. This advance marking simplifies subsequent processing because the charging system only needs to read the pre-marked indicators rather than analyzing packet delivery status from scratch
Solution Approach 2:
The patent uses packet marking analogous to color changes, where dropped packets are visually distinguished through specific indicators or tags. This marking approach makes it easy to identify and separate dropped packets from successfully delivered packets, improving charging accuracy through simple identification
Data Source
AI summary
A method for processing information is performed by a first network function, and includes: receiving a downlink data packet actively dropped and labeled by an access network device in a procedure of packet data unit (PDU) set based quality of service (QoS) handling; and performing a charging offset of downlink data based on the downlink data packet, or reporting a usage of the downlink data packet to a second network function, wherein the usage is configured to perform the charging offset of the downlink data.