Uplink Packet Delay Measurement in 5G Wireless Networks
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Solution Overview
Problem
Current measurements for one-way uplink packet delay in 5G wireless communications are unclear about whether D1 UL PDCP delay occurs in the UE, making it difficult to optimize network performance and user experience.
Innovation Solution
The solution involves generating performance measurements for user plane UL packet delay between the PSA UPF and UE, with clear distinction about whether D1 UL PDCP delay is included, using discrete event registration and specific timestamp recording methods to calculate average and distribution of delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current measurement methods are used for one-way uplink packet delay, then measurements can be obtained, but the measurements are unclear about whether D1 UL PDCP delay occurs in the UE, making it difficult to optimize network performance
Solution Approach 1:
The patent segments the uplink packet delay measurement into distinct components: D1 UL PDCP delay (in UE), D2 UL air interface delay, and D3 UL RAN delay. By dividing the overall delay into separate measurable segments with clear definitions of what is included or excluded, the measurement precision is improved while maintaining the ability to optimize network performance.
Solution Approach 2:
The patent introduces an intermediary measurement framework that clearly defines the composition of delay measurements. This framework acts as a mediator between the measurement system and the network optimization process, ensuring that the measurements provide clear information about whether D1 UL PDCP delay is included, thereby eliminating information loss.
2Productivity
If clear distinction about D1 UL PDCP delay inclusion is made in measurements, then network optimization capability is improved, but measurement complexity increases
Solution Approach 1:
The patent changes the parameters of the measurement system by introducing clear inclusion/exclusion criteria for D1 UL PDCP delay. By defining specific parameter conditions (whether D1 is included or excluded), the system achieves clear distinction without requiring overly complex measurement mechanisms, thus improving network optimization efficiency while controlling complexity.
Solution Approach 2:
The patent makes the measurement system dynamic by allowing flexible configuration of what is included in the delay measurement. The system can adaptively select whether to include D1 UL PDCP delay or not, based on optimization needs. This dynamic capability enables clear distinction for optimization while avoiding fixed complex measurement setups.
Data Source
AI summary
This disclosure describes systems, methods, and devices for performing performance measurements for one-way uplink packet delay in wireless communications. An apparatus of a Service Based Management Architecture (SBMA) Management Service (MnS) Producer may identify performance measurements, received from a network function (NF) of a 5th Generation (5G) wireless network, indicative of uplink packet delay between a user equipment (UE) and a protocol data unit (PDU) session anchor (PSA) user plane function (UPF) of the 5G wireless network; detect whether the performance measurements indicate that the uplink packet delay includes an uplink PDCP delay occurred in the UE (D1); and generate performance metrics for the NF using the performance measurements.