Reflective Uplink QoS Control for PDU-Set Media Traffic
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication networks lack implementation of uplink Quality of Service (QoS) rules, particularly for extended reality media, leading to inefficiencies in delivering media packets with specific QoS requirements, such as PDU Set Delay Budget (PSDB) and PDU Set Error Rate (PSER), without excessive signaling overhead.
Innovation Solution
A wireless communication device and network implement reflective QoS control by determining uplink QoS rules based on downlink packets marked with reflective Quality of Service indications and packet set information, enabling per-PDU-set QoS management with minimal signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uplink QoS rules are implemented via NAS signaling from AMF to UE, then QoS control for PDU-sets is achieved, but signaling overhead increases
Solution Approach 1:
The UE autonomously derives uplink QoS rules by inspecting downlink packets marked with reflective QoS indications and PDU-set information. The UE self-configures its QoS behavior without requiring explicit NAS signaling from the AMF, thereby eliminating the signaling overhead while maintaining reliable QoS control for PDU-sets in the uplink direction
2Reliability
If per-PDU-set QoS control is implemented, then media packet delivery quality improves, but network complexity increases
Solution Approach 1:
The network embeds reflective QoS indications and PDU-set information directly in downlink packet headers as feedback about the required QoS treatment. The UE uses this feedback to automatically configure uplink QoS rules, enabling per-PDU-set quality control without requiring complex centralized management or additional signaling protocols
Solution Approach 2:
QoS requirements are pre-configured in the downlink packets before transmission. The UE inspects these pre-marked packets and pre-configures its uplink QoS behavior accordingly, eliminating the need for real-time network control decisions and reducing network complexity
Data Source
AI summary
There is provided a wireless communication device comprising a receiver and a processor. The receiver is arranged to receive a downlink packet from an end-point address, the downlink packet marked with a reflective Quality of Service indication and packet set information. The processor is arranged to determine that reflective Quality of Service must be applied for packets sent in the uplink direction towards the end-point address and that are part of a particular packet set. The processor is further arranged to derive uplink Quality of Service rules for packet data units of the particular packet set. The processor is further arranged to determine which packets sent in the uplink direction towards the end-point address are part of the particular packet set. The processor is further arranged to apply the uplink Quality of Service rules for packets sent in the uplink direction towards the end-point address that are part of the particular packet set.