Context Intelligence Exposure Server for IoT Signaling Optimization

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Solution Overview

Problem

Current IoT device management in cellular networks faces challenges with increased volumes, including traffic modeling dynamics, configuration, connectivity, signaling routing complexity, database congestion, and scalability issues due to unique characteristics of IoT devices, which traditional mobility management entities (MMEs) are not adequately equipped to handle efficiently.

Innovation Solution

The implementation of a Context Intelligence Exposure Server (CIES) that interfaces with MMEs and IoT application servers to optimize control plane signaling, using standardized APIs and secure transport layers, allowing for efficient communication and resource management, thereby reducing network strain and operational complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional MMEs are used to manage IoT devices, then existing network infrastructure can be maintained, but scalability and efficiency deteriorate due to database congestion and signaling routing complexity

Engineering Contradiction:
ImprovescalabilityVSAvoidsignaling routing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the MME functionality by introducing a separate context information database distinct from the HSS. This separation allows the MME to query context information efficiently without the database congestion that occurs when all device data is stored in a single centralized HSS, thereby improving scalability while reducing signaling routing complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism where the MME first queries the context information database for device context data before accessing the HSS. This intermediary step optimizes signaling routing by providing the MME with necessary context information upfront, reducing unnecessary signaling transactions and improving system scalability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If centralized HSS stores all device data, then data consistency is maintained, but database congestion increases and query efficiency decreases

Engineering Contradiction:
Improvedata consistencyVSAvoidquery efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent segments the centralized data storage by creating a separate context information database that stores frequently accessed device context data. This segmentation maintains data consistency through proper synchronization mechanisms while dramatically improving query efficiency by reducing the load on the centralized HSS.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements preliminary action by pre-storing device context information in the context information database before it is needed for signaling operations. This allows the MME to quickly retrieve context data without querying the HSS for every signaling event, thereby improving query efficiency while maintaining data consistency through synchronized updates.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If MME queries HSS for every device status check, then accurate device information is obtained, but network resource strain increases due to excessive signaling

Engineering Contradiction:
Improvedevice information accuracyVSAvoidnetwork resource strain
Core Design Contradiction:
Measurement precisionVSLoss of energy

Solution Approach 1:

The patent applies local quality by caching device context information locally in the context information database that is accessible by the MME. This allows the MME to obtain accurate device information from the local cache for routine status checks, reducing network resource strain from excessive HSS signaling while maintaining information accuracy through periodic synchronization.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements preliminary action by pre-populating the context information database with device context data. This allows the MME to accurately query device status from the local database without repeatedly signaling the HSS, thereby obtaining accurate device information while significantly reducing network resource strain.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11382025B2Object-resource model to facilitate IoT services
Publication Date: 2022.07.05 AT&T MOBILITY II LLC
  • US11382025B2 patent drawing
  • US11382025B2 patent drawing
  • US11382025B2 patent drawing

AI summary

A network device can receive a request from an application server for availability information associated with a response period in which a user equipment is responsive to communications. The network device can send a status query related to the user equipment to a radio access network controller device that processes signals between the user equipment and a mobile network core device. The network device can receive the availability information from the radio access network controller device and transmit a notification message to the application server that indicates the response period.