Access and Mobility Management Network Element for 3GPP Information Delivery
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Solution Overview
Problem
In next-generation mobile communications systems, particularly in 5G networks, there is a lack of processing solutions when a network-side device receives messages related to PDU sessions established based on non-3GPP access networks, leading to inefficiencies in information delivery to terminals, especially when terminals are in an idle state.
Innovation Solution
The proposed solution involves an access and mobility management network element receiving messages from a session management network element and sending relevant information to terminals using 3GPP access, even if the terminal is in an idle state on a non-3GPP access network, thereby enabling information delivery without activating the user plane of the PDU session, which reduces resource overheads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the user plane of the PDU session is activated to deliver information to the terminal, then information delivery is enabled, but resource overheads increase
Solution Approach 1:
The patent extracts the information delivery function from the user plane activation process. Instead of activating the entire user plane to deliver information, the system uses the control plane to carry the information directly, separating the information delivery function from resource-intensive user plane operations.
Solution Approach 2:
The control plane is given a dual function: it not only manages signaling but also carries user information directly. This multi-functionality allows the control plane to handle both control signaling and user data transmission, eliminating the need for separate user plane activation for information delivery.
2Loss of energy
If the terminal is kept in idle state on non-3GPP access, then resource utilization is reduced, but information delivery becomes impossible
Solution Approach 1:
The access and mobility management network element acts as an intermediary that receives information from the session management network element and forwards it to the terminal via the 3GPP access. This mediator enables information delivery to terminals on non-3GPP access by routing through the 3GPP access infrastructure.
Solution Approach 2:
The patent introduces a cross-access dimension by delivering information intended for non-3GPP access terminals through the 3GPP access channel. This dimensional shift allows information delivery without requiring the terminal to be active on the original access type.
3Loss of energy
If signaling overheads are reduced by avoiding user plane activation, then resource efficiency improves, but information delivery mechanism becomes complex
Solution Approach 1:
The patent merges the information delivery process into the existing control plane signaling flow. By combining user information with control plane messages, the system leverages existing signaling infrastructure without adding separate complex delivery mechanisms.
Data Source
AI summary
A communications method and apparatus related to the field of communications technologies and includes receiving, by an access and mobility management network element, a first message corresponding to a packet data unit (PDU) session from a session management network element, where the first message includes first information to be sent to a terminal, and where the PDU session is established based on a non-3rd Generation Partnership Project (non-3GPP) access, and sending, by the access and mobility management network element, the first information to the terminal using a 3GPP access.