UE QoS Indicator Mapping for V2X Latency Reduction
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Solution Overview
Problem
Current wireless communication systems, particularly in V2N2X architectures, face high latency and network resource consumption due to the need for V2X packets to traverse a V2X application server, which is unsustainable for stringent latency requirements.
Innovation Solution
A method where a first UE provides QoS rules to a network node indicating a mapping between uplink and downlink QoS indicators, allowing packets to be marked and transmitted without routing through the V2X application server, thereby reducing network resource consumption and latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If V2X packets traverse a V2X application server, then network routing flexibility is improved, but latency increases and network resource consumption increases
Solution Approach 1:
The patent extracts the QoS mapping function from the V2X application server and embeds it directly into the UE. The UE stores QoS indicator mappings locally and performs packet marking independently, eliminating the need for packets to traverse the V2X application server for QoS handling, thereby reducing latency while maintaining routing flexibility
Solution Approach 2:
The patent introduces a QoS indicator mapping mechanism as an intermediary between the uplink and downlink QoS indicators. This mapping table stored in the UE acts as a mediator that translates QoS requirements without requiring packet routing through the V2X application server, thus reducing latency while preserving network routing flexibility
2Adaptability or versatility
If V2X packets traverse a V2X application server, then network routing flexibility is improved, but network resource consumption increases
Solution Approach 1:
The patent extracts the QoS mapping function from the V2X application server and embeds it directly into the UE. The UE stores QoS indicator mappings locally and performs packet marking independently, eliminating the need for packets to traverse the V2X application server for QoS handling, thereby reducing latency while maintaining routing flexibility
Solution Approach 2:
The UE performs self-service by storing and applying QoS indicator mappings locally without requiring network server intervention. The UE autonomously marks packets according to its own QoS requirements, eliminating the need for packets to traverse the V2X application server, thus reducing network resource consumption while maintaining routing flexibility
3Extent of automation
If QoS indicator mapping is performed at the network server, then centralized control is improved, but latency increases
Solution Approach 1:
The patent inverts the traditional centralized QoS mapping approach by moving the QoS indicator mapping function from the network server to the UE. Instead of the network server centrally controlling QoS mapping, the UE performs local QoS indicator translation, thereby reducing latency while maintaining effective QoS control through distributed intelligence
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first UE may mark a packet with a first QoS indicator, the packet being associated with a communication between the first UE and a second UE, the first QoS indicator being associated with an uplink between the first UE and a first network node, and the first QoS indicator indicating a mapping to a second QoS indicator associated with a downlink between a second network node and the second UE. The UE may transmit, to the first network node via the uplink, the packet. Numerous other aspects are described.