5G Broadcast Service Binding via Unicast Resource Reuse
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
5G communication systems do not support broadcast services, leading to high technical difficulty, poor reliability, and low data transmission efficiency, especially in handover scenarios, due to the need for unicast-based multicast solutions and modifications to existing protocols.
Innovation Solution
A method and apparatus that utilize existing unicast resources in 5G systems by associating terminal devices with broadcast services through session management network elements, reusing existing air interface resources without establishing dedicated broadcast channels, and implementing broadcast services using unicast procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a unicast-based multicast solution is applied to implement broadcast service in 5G system, then broadcast service can be provided, but technical difficulty increases and handover delay increases
Solution Approach 1:
The patent applies universality by enabling the unicast protocol to serve multiple functions - both unicast communication and broadcast service delivery. The access network device uses the existing unicast protocol framework to provide broadcast services to multiple terminal devices simultaneously, eliminating the need for dedicated broadcast protocol development while maintaining broadcast service functionality.
Solution Approach 2:
The patent uses copying by replicating unicast data transmissions to multiple terminal devices. Instead of creating a new broadcast protocol, the system copies the established unicast protocol and adapts it to serve broadcast functionality, where the same data is transmitted through unicast channels to multiple recipients, effectively copying the unicast mechanism for broadcast purposes.
2Reliability
If unicast-based multicast solution is used, then broadcast service can be implemented, but data transmission efficiency decreases
Solution Approach 1:
The patent applies dynamics by enabling flexible switching between unicast and broadcast modes based on real-time network conditions and service requirements. The system can dynamically select the most efficient transmission mode for each scenario, optimizing data transmission efficiency while maintaining broadcast service reliability through adaptive protocol selection.
3Reliability
If dedicated broadcast channels are established in 5G system, then broadcast service can be provided, but air interface resource utilization decreases
Solution Approach 1:
The patent applies universality by making the unicast air interface resources serve dual purposes - both unicast data transmission and broadcast service delivery. By reusing existing unicast resources for broadcast functionality, the system eliminates the need for dedicated broadcast channels, thereby maximizing air interface resource utilization while maintaining broadcast service provision.
Data Source
AI summary
This application provides a communication method and an apparatus. The method includes: A terminal device, a serving access network device, a target access network device, a mobility management network element, or a session management network element corresponding to the terminal device, or a session management network element corresponding to a broadcast service may bind the terminal device to the broadcast service and/or activate/deactivate the broadcast service, based on one or more of identification information of the broadcast service, a service area of the broadcast service, a location of the terminal device, or a status of the terminal device, to reuse a unicast resource of the terminal device. In addition, a binding procedure and an activation procedure may be coupled or separately performed.