Broadcast Session Channel Sharing Across PLMNs
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Solution Overview
Problem
In a RAN sharing scenario where multiple PLMNs set up sessions for a same broadcast service, existing technologies inefficiently manage network resources, leading to redundant channel setups and resource wastage.
Innovation Solution
A communication method where a network device determines that multiple sessions belong to the same broadcast service and sends indication information to avoid setting up redundant transmission channels, such as F1-U and NG-U tunnels, thereby optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple PLMNs set up separate transmission channels for the same broadcast service, then each PLMN can independently manage its broadcast sessions, but network resources are wasted due to redundant channel setups
Solution Approach 1:
The patent merges transmission channels for the same broadcast service across multiple PLMNs. When a network device determines that broadcast sessions from different PLMNs belong to the same service, it indicates that other network devices do not need to set up separate transmission channels, thereby combining channel resources and eliminating redundancy while maintaining independent session management capability
Solution Approach 2:
The patent enables a single transmission channel to serve multiple PLMNs for the same broadcast service. The indication information mechanism allows a channel setup by one PLMN to be universally utilized by other PLMNs, making the channel multi-functional and eliminating the need for separate channels for each PLMN
2Adaptability or versatility
If separate transmission channels are set up for each PLMN's broadcast session, then network management flexibility is maintained, but device complexity increases due to multiple channel management overheads
Solution Approach 1:
The patent reduces device complexity by merging channel management operations. Instead of independently managing separate channels for each PLMN, the network devices use indication information to share channel resources, thereby simplifying the number of channels that need to be tracked and managed while preserving adaptability through the session determination mechanism
3Reliability
If redundant transmission channels are set up for the same broadcast service, then service availability is ensured, but network resource utilization efficiency decreases
Solution Approach 1:
The patent merges transmission channels for the same broadcast service across multiple PLMNs. By determining whether broadcast sessions belong to the same service and indicating shared channel usage, the system eliminates redundant channel setups while ensuring service availability through the existing channel, thereby improving network resource utilization efficiency
Data Source
Figure 1~3A
Figure 3B~4A
Figure 4B
AI summary
A communication method and apparatus are provided. The method includes: A first network device receives a request message, where the request message is used to request to create a first broadcast session for a first PLMN, and the first broadcast session is a session of a first broadcast service. If the first network device determines, based on the request message, that the first broadcast session and a second broadcast session belong to sessions of the first broadcast service, and the second broadcast session is a session created for a second PLMN, the first network device sends first indication information to a second network device, where the first indication information indicates not to set up a first transmission channel for the first broadcast session, and the first transmission channel is a channel for transmitting the first broadcast service. According to the foregoing method, when determining that the first broadcast session and the second broadcast session belong to the sessions of the first broadcast service, the first network device may indicate that the second network device does not need to set up the channel used to transmit the first broadcast service, so that network resources can be saved, and network resource utilization efficiency can be improved.