Cellular-TSN Interworking Using MDBV to Reduce Signaling Overhead
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Solution Overview
Problem
High transmission overheads are required between the SMF network element and the PCF network element to transmit TSN parameters in conventional cellular communication systems interworking with a Time Sensitive Network (TSN).
Innovation Solution
The method involves generating a maximum data burst volume value equal to the maximum value of the time sensitive communication burst size at the policy control function (PCF) network element and sending it to the session management function (SMF) network element, allowing the SMF to calculate merged stream requirement information directly, thereby reducing the need for additional parameter transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the SMF network element obtains the maximum value of the time sensitive communication burst size from the PCF network element and calculates merged stream requirement information, then accurate merged stream requirement information can be obtained, but high transmission overheads are required between the SMF and PCF network elements
Solution Approach 1:
The patent extracts only the essential parameter (maximum data burst volume value) from the PCF network element that is needed for calculating merged stream requirement information, rather than transmitting all TSN parameters. This reduces transmission overheads while maintaining the accuracy needed for proper calculation of merged stream requirements.
Solution Approach 2:
The PCF network element pre-calculates and provides the maximum data burst volume value in advance, which the SMF network element then uses directly for calculating merged stream requirement information. This preliminary preparation reduces the need for repeated parameter transmissions and enables efficient calculation.
2Measurement precision
If multiple TSN parameters are transmitted between network elements to ensure accurate calculation of merged stream requirement information, then calculation accuracy is improved, but system complexity and transmission overheads increase
Solution Approach 1:
The patent identifies and transmits only the critical parameter (maximum data burst volume value) required for merged stream requirement calculation, eliminating the need to transmit and process multiple TSN parameters. This extraction approach maintains calculation accuracy while significantly reducing system complexity and transmission overheads.
Data Source
AI summary
This application provides a communication method, apparatus, and system. In technical solutions provided in this application, when determining that a cellular communication system supports interworking with a TSN or there is an interworking requirement between the cellular communication system and the TSN, the PCF network element generates, based on a maximum value of a TSC burst size, an MDBV value corresponding to a session, and sends the MDBV value to the SMF network element. After receiving the MDBV value, the SMF network element determines merged stream requirement information based on the MDBV value.