5G User Apparatus URLLC Registration with SSC Mode 1
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Solution Overview
Problem
The implementation of Ultra-Reliable and Low Latency Communications (URLLC) in 5G Systems is still unclear, particularly regarding the procedures and information exchange required to realize this function.
Innovation Solution
A user apparatus is designed with a control unit for performing a registration procedure and a transmission/reception unit configured to receive a registration accept message including Data Network Name (DNN) and Single Network Slice Selection Assistance Information (S-NSSAI) for URLLC, facilitating the realization of URLLC functions in 5G Systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a user apparatus performs a registration procedure to access URLLC services in 5GS, then URLLC function is enabled, but the procedure complexity and information exchange requirements increase
Solution Approach 1:
The patent applies preliminary action by incorporating URLLC-related parameters (DNN, S-NSSAI) into the registration procedure before the actual URLLC service activation. The network prepares and provides these parameters during the registration phase, so that when URLLC services are needed, the necessary configuration is already in place, reducing the complexity of subsequent service setup procedures.
Solution Approach 2:
The registration procedure is designed to serve multiple functions: it not only registers the user equipment with the network but also simultaneously configures URLLC parameters, establishes QoS profiles, and prepares network slices. This multi-functional approach consolidates what would otherwise be separate procedures into a single registration process, reducing overall system complexity.
2Reliability
If detailed registration procedures with DNN and S-NSSAI are implemented, then URLLC reliability is improved, but the registration process time increases
Solution Approach 1:
The patent applies preliminary action by incorporating URLLC-related parameters (DNN, S-NSSAI) into the registration procedure before the actual URLLC service activation. The network prepares and provides these parameters during the registration phase, so that when URLLC services are needed, the necessary configuration is already in place, reducing the complexity of subsequent service setup procedures.
Solution Approach 2:
The registration procedure is designed to continuously exchange necessary information without interruption. The control unit and transmission/reception unit continuously communicate DNN, S-NSSAI, and other URLLC parameters throughout the registration process, ensuring that all necessary configurations are established in a continuous manner rather than through multiple discrete steps, thereby reducing total registration time.
Data Source
AI summary
The present invention provides a communication method for realizing a function for URLLC that requires high-reliability and/or low-latency communication in a 5GS. A user apparatus can provide a communications method capable of realizing a URLLC function in a 5GS by performing the communication method, which comprises: receiving, in a registration procedure, a registration accept messages including DNN and S-NSSAI for URLLC; receiving, in a first PDU session establishment procedure, a PDU session establishment accept messages including information indicating that an SSC mode for a PDU session for URLLC is SSC mode 1; and transmitting, in a second PDU session establishment procedure, a PDU session establishment request messages including information indicating that the SSC mode for the PDU session for URLLC is SSC mode 1.