5G Network Exposure Device Message Routing Optimization

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Solution Overview

Problem

The existing 5G telecommunications system's SMS function was designed for earlier systems and does not leverage advanced messaging capabilities, leading to increased complexity and resource usage due to excessive status messages, making it difficult to identify error origination points in SMS messaging.

Innovation Solution

Implementing a network exposure device that communicates messages directly through standard 5G network devices without relying on an SMS function, allowing for message conversion and routing optimization, thereby reducing resource usage and enabling various message types to be communicated uniformly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the existing SMS function is used in 5G network, then message communication is enabled, but the number of status messages increases excessively and resource usage increases

Engineering Contradiction:
Improvemessage communication capabilityVSAvoidnumber of status messages
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent extracts the SMS message routing function from the traditional SMS service center (SSC) and relocates it to the access and mobility management function (AMF) in the 5G core network. This separation removes the unnecessary SMSF component and its associated status message exchanges, keeping only the essential message forwarding capability while eliminating the complexity of excessive status messages between SMSF and other network elements.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The AMF is enhanced to perform both mobility management and SMS message routing functions. By making the AMF multi-functional, the patent eliminates the need for dedicated SMSF components and their complex status message interactions, while maintaining comprehensive message communication capability through the unified AMF entity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If the existing SMS function is used in 5G network, then message communication is enabled, but resource usage increases

Engineering Contradiction:
Improvemessage communication capabilityVSAvoidnetwork resource usage
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

By extracting and removing the SMSF component from the 5G network architecture, the patent eliminates the redundant status message exchanges that consume network resources. The essential SMS functionality is retained through the AMF, while the energy-wasting SMSF entity and its communication overhead are removed.

Inventive Principle:
Principle #2Taking out (Extraction)

3Productivity

If the existing SMS function is used in 5G network, then message communication is enabled, but it becomes difficult to identify error origination points

Engineering Contradiction:
Improvemessage communication capabilityVSAvoiderror identification difficulty
Core Design Contradiction:
ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

By removing the SMSF component and its multiple status message interfaces, the patent simplifies the message routing path to a single AMF entity. This reduction in network elements and interaction points makes error tracking and identification significantly easier, as there are fewer potential failure points and less complex message flow to analyze.

Inventive Principle:
Principle #2Taking out (Extraction)

4Adaptability or versatility

If message conversion is performed by network exposure device, then adaptability to different message types is improved, but device complexity increases

Engineering Contradiction:
Improvemessage type compatibilityVSAvoidnetwork exposure device complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The network exposure device acts as an intermediary between external message sources and the 5G core network. It performs format conversion and protocol adaptation, translating various message types into the standardized format required by the AMF. This mediator approach enables broad message type compatibility while keeping the core network simple and unchanged.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11337044B2Method and device for communicating messages via a 5G network
Publication Date: 2022.05.17 VERIZON PATENT & LICENSING INC
  • US11337044B2 patent drawing
  • US11337044B2 patent drawing
  • US11337044B2 patent drawing

AI summary

A device obtains a list of a plurality of user devices from a first network device and receives a message intended for a destination user device from a second network device. The device obtains information indicating that the destination user device can receive messages that conform to a particular format from a third network device and converts the message to the particular format. The device determines a reachability of the destination user device based on the list of the plurality of user devices, after converting the message, and sends the message to the destination user device via the first network device based on the reachability. The device receives a delivery message from the destination user device and sends a notification message indicating successful delivery of the message to the second network device based on the delivery message.