Terminal Data Route Selection via URSP Policy Matching
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Solution Overview
Problem
In data transmission between a terminal and a network, applications that initiate data transmission requests later experience prolonged delays due to the need for idle resources to be allocated, leading to inefficient resource utilization and increased latency.
Innovation Solution
A data route selection method where a terminal determines and establishes a PDU session based on route selection components that match specific criteria, such as allowed network slice selection assistance information and local access data network conditions, to prioritize and reserve resources for traffic transmission, ensuring timely data exchange without relying on idle resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the network side allocates idle resources according to application request order, then resource allocation follows a simple sequential process, but data transmission delay increases for later applications
Solution Approach 1:
The terminal proactively establishes a PDU session based on URSP policy matching before data transmission is actually needed. This preliminary action reserves the data transmission channel and resources in advance, so when the application needs to transmit data, the channel is already ready, eliminating the waiting delay for idle resource allocation.
2Reliability
If the terminal establishes a PDU session based on URSP policy matching, then resource reservation is achieved, but system complexity increases due to policy matching requirements
Solution Approach 1:
The terminal autonomously performs URSP policy matching and PDU session establishment based on local configuration. The system provides itself with the necessary policy rules and the terminal independently executes the matching and session setup without requiring complex network-side coordination or additional signaling, thereby achieving resource reservation reliability while keeping the system relatively simple.
Data Source
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AI summary
This application provides a data route selection method and apparatus, and relates to the field of communications technologies, so as to resolve a problem of an excessively long transmission delay for an application program that initiates a data transmission request relatively later. The data route selection method includes: detecting, by a terminal, that information about an application matches a traffic descriptor; determining, by the terminal, a first route selection components for the application; and routing, by the terminal, traffic of the application on a first protocol data unit PDU session. The first PDU session matches the first route selection components. This application is applicable to a terminal.