Network device and communication method

By introducing primary and secondary tunnel mechanisms in AGF nodes, the problem of excessive bandwidth usage caused by multicast stream replication in 5G networks is solved, improving network bandwidth utilization and multicast stream processing efficiency, and adapting to the bandwidth requirements of 4K content.

CN116668419BActive Publication Date: 2026-06-05JUNIPER NETWORKS INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JUNIPER NETWORKS INC
Filing Date
2020-06-15
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing technologies, multicast stream replication between AGF nodes and UPF nodes in 5G networks leads to excessive use of network bandwidth, especially when there are many receivers in the multicast group, resulting in low network bandwidth efficiency and inability to meet the bandwidth requirements of 4K content.

Method used

By establishing a primary tunnel and a secondary tunnel in the AGF node, the primary tunnel is responsible for the transmission of the initial multicast stream, and the secondary tunnel is responsible for the replication of subsequent joining devices. This reduces direct requests to the UPF node and only processes subsequent joining requests within the AGF node, thus achieving stream replication.

Benefits of technology

It reduces network bandwidth utilization between AGF nodes and UPF nodes, optimizes network bandwidth usage, improves multicast stream processing efficiency, and adapts to the bandwidth requirements of 4K content.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to network devices and communication methods. An access gateway function (AGF) node can receive a request from a computing device to join a multicast stream. If the request is a first request to join the multicast stream, the AGF can forward the request to a UPF node. The multicast stream is then received via a tunnel between the AGF node and the UPF node associated with the computing device. The tunnel associated with the first computing device requesting to join the multicast stream can be a primary tunnel for the multicast stream. Subsequent requests to join the same multicast stream can cause the AGF node to add a tunnel associated with the requesting computing device as a secondary tunnel. The multicast stream is received via the primary tunnel and replicated to the computing devices associated with the secondary tunnel. The secondary tunnel can be promoted to the primary tunnel in response to a failure or disconnection of the primary tunnel.
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