MPQUIC Datagram Handling for Unknown Context IDs in PDU Sessions
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Solution Overview
Problem
Wireless communication systems often drop or fail to utilize datagrams with unknown context IDs during PDU sessions, leading to inefficient performance and low quality of service.
Innovation Solution
Implementing a mechanism that implicitly registers datagrams to UDP flows regardless of context ID values, allowing network nodes to handle and buffer datagrams with unknown context IDs, enhancing efficiency and quality of service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If datagrams with unknown context IDs are dropped or not utilized, then network resource waste is reduced, but quality of service deteriorates
Solution Approach 1:
The patent introduces an intermediary mechanism (implicit registration process) between datagram reception and UDP flow handling. Network nodes act as intermediaries that automatically register datagrams with unknown context IDs to UDP flows based on matching criteria (source/destination IP addresses, port numbers), enabling these datagrams to be properly routed and processed without manual configuration or context ID knowledge.
2Measurement precision
If strict context ID matching is enforced, then datagram routing precision is improved, but adaptability to unknown datagrams deteriorates
Solution Approach 1:
The patent implements preliminary action by pre-establishing UDP flows and creating registration mechanisms before unknown datagrams arrive. Network nodes are pre-configured with UDP flow information (source/destination addresses, port numbers) that enables automatic matching and implicit registration of incoming datagrams with unknown context IDs, ensuring they can be routed without delays or manual intervention.
Data Source
AI summary
Various aspects of the present disclosure provide mechanisms for handling datagrams, such as datagrams having unknown context IDs, by UEs and/or network entities of a 3GPP network that employ a multi-path QUIC (MPQUIC) functionality during packet data unit (PDU) sessions. For example, the 3GPP network, via a policy control function (PCF) of the network, may predetermine a transport mode for datagrams transmitted within a PDU session and communicate the transport mode to the UE and network entity that established the PDU session.