5G Bearer Mode Switching for Multicast and Broadcast Services
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Solution Overview
Problem
The existing 5G technologies lack a point-to-multipoint (PTM) service mode, which is necessary for handling the increasing number of users and diverse application scenarios, particularly in multicast/broadcast services under the 5G new radio (5G-NR) framework.
Innovation Solution
A method and apparatus for configuring a mode configuration between point-to-point (PTP) and point-to-multipoint (PTM) bearers in wireless communication networks, allowing UEs to flexibly switch between these modes based on received information, and a device with processors and memory to execute these methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If only unicast (PTP) service mode is used in 5G, then service quality for individual users is maintained, but the system cannot efficiently handle multicast/broadcast services and increasing user numbers
Solution Approach 1:
The patent implements dynamic service mode switching that allows the system to transition between unicast (PTP) and multicast/broadcast (PTM) modes based on real-time service requirements and user conditions. The network can dynamically select the appropriate delivery mode for different services and user groups, enabling flexible adaptation to varying traffic patterns and service demands without being locked into a single static mode.
Solution Approach 2:
The patent creates a universal service framework that integrates both unicast and multicast/broadcast capabilities within the 5G system. The RRC connection management mechanism provides a unified interface that can handle both PTP and PTM services through the same connection type, making the system multi-functional and capable of serving diverse application scenarios including emergency alerts, software updates, and group communications alongside individual user services.
2Productivity
If PTP mode is used for all services, then service quality is maintained, but resource utilization efficiency deteriorates for multicast/broadcast scenarios
Solution Approach 1:
The patent applies different service delivery modes to different user groups and service types based on local requirements. Instead of using a uniform PTP mode for all services, the system selectively applies PTM mode for multicast/broadcast services where multiple users receive the same content, while maintaining PTP mode for individualized services. This localized optimization improves resource utilization efficiency by reducing redundant transmissions for group services while preserving service quality where needed.
3Productivity
If PTM service mode is introduced to handle multiple users, then system capacity improves, but service configuration complexity increases
Solution Approach 1:
The patent introduces the RRC connection as an intermediary mechanism that simplifies the configuration and management of both PTP and PTM services. By using the existing RRC connection framework that is already familiar from LTE, the system avoids creating a completely new complex configuration mechanism. The RRC connection provides a standardized interface for service configuration, reducing the complexity burden that would otherwise arise from introducing new PTM-specific configuration protocols and procedures.
Data Source
AI summary
Provided are a mode configuration method and apparatus, a device and a storage medium. The mode configuration method is applied by a first communication node and comprises: receiving first information and configuring a bearer mode based on the first information; and receiving multicast/broadcast service (MBS) data using the configured bearer mode.