Relay UE PDU Session QoS Mapping Using Service Descriptions
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Solution Overview
Problem
Relay UE fails to correctly map data of remote UE to QoS flows due to lack of service description information, leading to improper QoS control in PDU sessions.
Innovation Solution
The relay UE processes PDU sessions based on service description information provided by the remote UE, determining and applying QoS rules to ensure correct mapping of data to appropriate QoS flows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the relay UE uses existing QoS mapping mechanisms without service description information, then the connection establishment process is simple, but the relay UE cannot map the remote UE's data to the correct QoS flow
Solution Approach 1:
The remote UE sends service description information to the relay UE during the connection establishment phase, before data transmission begins. This preliminary provision of QoS requirements enables the relay UE to correctly configure QoS flows in advance, ensuring accurate data mapping without adding complex procedures during active transmission.
Solution Approach 2:
Service description information acts as an intermediary element that carries QoS requirements from the remote UE to the relay UE. This information structure mediates the QoS negotiation process, enabling the relay UE to understand and implement appropriate QoS flows without direct complex interaction with the core network for each data packet.
2Productivity
If the relay UE processes PDU sessions without service description information, then the network access process is faster, but communication efficiency is reduced due to incorrect QoS flow mapping
Solution Approach 1:
Service description information is exchanged during the PDU session establishment phase, allowing QoS flows to be pre-configured. This preliminary action ensures that when data transmission begins, the relay UE can immediately map packets to correct QoS flows without delays, maintaining both fast access and high efficiency.
Solution Approach 2:
The service description information provides feedback mechanisms where the remote UE communicates its QoS requirements to the relay UE, which then adjusts its QoS flow mapping accordingly. This feedback loop ensures optimal communication efficiency while maintaining reasonable access time through intelligent resource allocation.
Data Source
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AI summary
The present application relates to a method for establishing a connection, and a terminal device. The method comprises: a relay terminal accepts a communication connection initiated by a remote terminal; the relay terminal establishes a protocol data unit (PDU) session with a network device, the PDU session being used for relaying data of the remote terminal; the relay terminal processes the PDU session according to service description information; and the relay terminal sends information of the remote terminal to the network device according to the processed PDU session. By means of the embodiments of the present application, the process of the remote terminal accessing a network can be optimized.