5G MBS Data Synchronization Across gNB and DU Cells
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional systems are incapable of sharing interfaces with unicast services in a 5G NR system, preventing synchronous transmission of multicast/broadcast service data across gNB or cells in a gNB-DU cell group.
Innovation Solution
Implementing a multicast/broadcast service data synchronization scheme that utilizes the N3, Xn-U, and F1-U interfaces in 5G NR systems, using GTP-U extension headers and SYNC protocol layers to transmit synchronization information, allowing for synchronized data transmission across cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate protocol stacks are implemented for different data types (QoS, non-QoS, control plane), then service reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple separate protocol stacks (QoS data, non-QoS data, control plane data) into a single unified protocol stack. This consolidation maintains service reliability by preserving all necessary protocol functions while reducing device complexity through shared resources and streamlined architecture.
Solution Approach 2:
The unified protocol stack is designed to handle multiple types of data traffic (QoS, non-QoS, control plane) simultaneously through a single multi-functional structure. This universal approach allows the same protocol stack to serve multiple purposes, reducing the need for separate dedicated stacks for each data type.
2Reliability
If separate protocol stacks are used for different data types, then data transmission reliability is improved, but resource consumption increases
Solution Approach 1:
By merging separate protocol stacks into one unified structure, the patent reduces resource consumption through shared memory, processing units, and other resources that would otherwise be duplicated across multiple stacks. This consolidation maintains data transmission reliability while optimizing resource utilization.
Solution Approach 2:
The unified protocol stack enables more efficient resource management by allowing resources to be dynamically allocated and recovered based on actual traffic needs, rather than being permanently reserved in separate stacks. This improves resource efficiency while maintaining the reliability needed for different data types.
3Adaptability or versatility
If multiple protocol stacks are implemented, then service coverage is improved, but system complexity increases
Solution Approach 1:
The unified protocol stack is designed with multi-functional capabilities to handle diverse service types including QoS data, non-QoS data, control plane data, and broadcast/multicast traffic. This universal design provides comprehensive service coverage while avoiding the complexity of implementing separate specialized stacks for each service type.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A system and method for multicast /broadcast service data synchronization. In some embodiments, the method includes transmitting, by a first network node, synchronization information to a second network node. In some embodiments, the synchronization information indicating a plurality of information elements configured to transmit Multicast/Broadcast Service (MBS) data on a user plane over an interface.