Sidelink Relay QoS Mapping for 5G Packet Delay Budget
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Solution Overview
Problem
Current wireless communication systems face challenges in ensuring quality of service (QoS) for sidelink relay services, particularly in establishing end-to-end QoS configurations that satisfy the total packet delay budget, as sidelink QoS identifiers and 5G QoS identifiers are often established independently, leading to increased delays and reduced communication reliability.
Innovation Solution
The system determines an end-to-end QoS configuration by mapping sidelink QoS identifiers to 5G QoS identifiers, allowing for a unified QoS management across sidelink and access link interfaces, ensuring that the total packet delay budget is met and communication reliability is enhanced.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sidelink QoS identifiers and 5G QoS identifiers are established independently, then the QoS configuration process is simpler, but the total packet delay budget is not met and communication reliability is reduced
Solution Approach 1:
The patent merges the independent QoS configuration processes by establishing a mapping relationship between sidelink QoS identifiers and 5G QoS identifiers. This allows the network entity to coordinate QoS parameters across both interfaces, ensuring the total packet delay budget is met while maintaining manageable configuration complexity through standardized mapping procedures.
Solution Approach 2:
The patent introduces a QoS mapping configuration as an intermediary mechanism between sidelink and 5G QoS identifiers. This mapping configuration, provided by the network entity, acts as a mediator that translates and coordinates QoS parameters across different interfaces, enabling reliable end-to-end QoS without requiring complex independent configuration of both identifiers.
2Loss of time
If end-to-end QoS mapping is implemented, then the total packet delay budget is met, but the QoS configuration process becomes more complex
Solution Approach 1:
The patent applies preliminary action by pre-establishing the QoS mapping configuration from the network entity before data transmission occurs. The mapping relationship between sidelink and 5G QoS identifiers is configured in advance, allowing the relay UE to automatically apply the correct QoS parameters without complex real-time calculations, thus meeting packet delay requirements while keeping the configuration process manageable.
Solution Approach 2:
The patent manages QoS parameter complexity by establishing a systematic mapping between different QoS identifier types. Instead of independently managing multiple QoS parameters, the mapping configuration transforms the problem into a parameter translation task, where the network entity provides predefined mapping rules that simplify the relay UE's configuration burden while ensuring end-to-end delay performance.
3Reliability
If independent QoS configuration is used for sidelink and access link, then the setup process is faster, but communication reliability is reduced due to increased delays
Solution Approach 1:
The patent applies universality by creating a QoS mapping configuration that serves multiple functions: it coordinates QoS parameters across different interfaces, ensures end-to-end delay performance, and maintains compatibility with existing independent configuration processes. This universal mapping mechanism allows the system to achieve reliable communication without requiring complete redesign of the QoS setup procedure.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A first user equipment (UE) (e.g., a relay UE) may establish a relay connection for routing communications between a network entity (e.g., a base station) and a second UE (e.g., a remote UE). The relay connection may include a sidelink connection and an access link connection. The remote UE may transmit a request to the network entity via the relay UE. The request may include a relay service code associated with the sidelink connection, as well as a request for quality of service (QoS) support for the relay connection. Based on the request, the network entity may determine a QoS configuration for the relay connection. The network entity may indicate the QoS configuration to the UEs via the relay connection. The UEs may adjust parameters of the relay connection to meet the specifications of the QoS configuration.