MBS Priority Signaling for RAN Resource Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems struggle to effectively manage and prioritize multicast and broadcast services (MBS) due to a lack of efficient methods for the radio access network (RAN) to obtain and handle the priority information of these services, leading to suboptimal resource allocation and scheduling.
Innovation Solution
The proposed solution involves transmitting priority information for MBS services through various signaling protocols, including NGAP, F1AP, RRC, and MAC CE, allowing the RAN to determine and manage reception priorities, and utilizing HARQ entities to handle MBS processes based on priority, ensuring efficient resource allocation and scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the RAN system does not obtain priority information for MBS services, then the system complexity remains low, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent applies preliminary action by having the RAN node obtain priority information for MBS services in advance through signaling protocols (NGAP, F1AP, RRC, or MAC CE) before actual resource allocation occurs. This allows the base station to pre-process and store priority data, enabling efficient scheduling decisions without real-time complexity when multiple MBS services need to be managed simultaneously.
Solution Approach 2:
The patent uses signaling protocols as intermediaries to transfer priority information from the core network to the RAN node. These protocols (NGAP, F1AP, RRC, MAC CE) act as mediators that carry priority data without requiring direct complex interactions between network elements, thus improving resource allocation efficiency while maintaining manageable system complexity through standardized communication interfaces.
2Reliability
If multiple MBS services with different priorities are transmitted without priority management, then the air interface resource sharing is simple, but the service quality deteriorates
Solution Approach 1:
The patent applies local quality by assigning different priority levels to different MBS services based on their specific requirements. The base station uses the obtained priority information to differentiate scheduling decisions for individual services, allowing high-priority services to receive preferential resource allocation while low-priority services use remaining resources, thus ensuring service quality without requiring complete re-scheduling of all services.
Solution Approach 2:
The patent segments MBS services into different priority groups based on their quality requirements. By dividing services into priority categories and applying different scheduling strategies to each segment, the system can manage multiple services with varying quality requirements without creating overwhelming scheduling complexity, as each segment can be handled with appropriate simplification.
3Adaptability or versatility
If priority information is obtained through multiple signaling protocols, then the flexibility of priority management is improved, but the information processing complexity increases
Solution Approach 1:
The patent applies universality by enabling the RAN node to receive priority information through multiple signaling protocols (NGAP, F1AP, RRC, MAC CE), each of which can serve different scenarios and network configurations. This multi-functional approach allows the system to adapt to various deployment scenarios and service types while maintaining a unified priority management framework that processes information from any of these protocols through standardized internal procedures.
Data Source
AI summary
Techniques are described for a radio access network (RAN) system to obtain and manage the priority information that indicates priorities of the multicast and broadcast services (MBS). An example wireless communication method includes receiving, by a first network node from a second network node, priority information that indicates a priority of a multicast and broadcast service (MBS), and determining, by the first network, based on the priority indicated by the priority information, a reception priority of the MBS.