NR Multicast Path Switching for QoS and Resource Efficiency
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Solution Overview
Problem
The existing multicast service transmission methods in New Radio (NR) systems fail to meet the high Quality of Service (QoS) requirements due to limitations in Multimedia Broadcast multicast service Single Frequency Network (MBSFN) and Single Cell Point To Multipoint (SC-PTM) transmission paths.
Innovation Solution
A method and apparatus that utilize both Point-To-Point (PTP) and Point-To-Multipoint (PTM) transmission paths to enhance QoS by configuring and switching between these paths based on service requirements, user location, and resource availability, ensuring flexible and efficient multicast service delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If only PTM transmission path is used for multicast service, then network resource efficiency is improved, but QoS reliability deteriorates
Solution Approach 1:
The patent combines PTM and PTP transmission paths into a unified multicast service transmission system. The terminal can receive multicast service data through either path or both paths simultaneously, merging the advantages of resource efficiency (PTM) and reliability (PTP) to resolve the contradiction between network resource efficiency and QoS reliability.
Solution Approach 2:
The patent implements dynamic path selection and switching mechanisms where the terminal can flexibly choose to receive multicast service data through PTM path, PTP path, or both paths based on service requirements, user location, and resource availability. This dynamic adaptability allows the system to optimize between resource efficiency and reliability according to different operating conditions.
2Reliability
If PTP transmission path is added for multicast service, then QoS reliability is improved, but device complexity increases
Solution Approach 1:
The patent designs a universal reception mechanism where the terminal's receiving unit can handle multicast service data from both PTM and PTP paths using the same basic architecture. The processing unit applies unified processing logic regardless of which path the data comes from, reducing the need for separate specialized components and minimizing device complexity while maintaining high QoS reliability.
3Duration of action of stationary object
If dual transmission paths are configured, then service continuity is improved, but configuration complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where the terminal autonomously performs path selection and switching based on pre-configured criteria and real-time conditions. The system automatically manages path configuration, data reception, and path switching without requiring complex manual configuration or intensive network control, thereby improving service continuity while keeping configuration complexity manageable.
Data Source
AI summary
A multicast service transmission method and apparatus, and a communications device, are provided. The method includes obtaining data of a target multicast service on a first transmission path, where the first transmission path includes at least one of a Point-To-Point (PTP) transmission path and a Point-To-Multipoint (PTM) transmission path.