Device Management Server DDF Synchronization via User Equipment Feedback

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

In mobile communication networks, when a device management tree on user equipment is structurally changed, such as by adding or removing software, the device management server cannot synchronize its locally stored Device Description Framework (DDF) document, leading to ineffective management of the user equipment.

Innovation Solution

The user equipment is enabled to voluntarily report updates to the device management server by transmitting a notification message with either the updated DDF information or its address, allowing the server to retrieve and update its local DDF document in real-time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the device management server stores the DDF document locally in advance for management, then the management process is simplified, but the server cannot synchronize updates when the device management tree structure changes locally

Engineering Contradiction:

Improvemanagement processVSAvoidDDF document update information

Core Design Contradiction:

Ease of operationVSLoss of information

Solution Approach 1:

The patent implements a feedback mechanism where the user equipment detects structural changes in its device management tree and actively reports updates to the device management server. The server responds by retrieving updated DDF documents from the equipment, ensuring synchronization without requiring continuous polling or complex push mechanisms from the server side.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The device management server pre-stores the DDF document locally before any structural changes occur. This preliminary storage establishes a baseline that can be efficiently updated later when change notifications are received, avoiding the need to retrieve the entire document from scratch during synchronization.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If the user equipment structurally changes the device management tree locally, then the equipment functionality is improved, but the server's local DDF document becomes outdated

Engineering Contradiction:

Improvedevice functionalityVSAvoidmanagement accuracy

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system establishes a feedback loop where the user equipment monitors its own device management tree structure and communicates changes back to the server. This ensures the server maintains an accurate view of the equipment's current state, preserving management reliability even as the equipment evolves and adds new functionality.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent enables dynamic updates of the DDF document on the server side in response to structural changes detected at the user equipment. Rather than treating the DDF as a static pre-configured document, the system allows it to evolve dynamically as the device management tree structure changes, maintaining consistency between the actual device state and the server's management model.

Inventive Principle:

Principle #15Dynamics

3Reliability

If the server retrieves the updated DDF document from the user equipment, then the server maintains synchronization, but network bandwidth is consumed

Engineering Contradiction:

Improvedata synchronizationVSAvoidnetwork bandwidth

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts only the necessary update information from the user equipment - specifically, notifications about structural changes in the device management tree. Rather than retrieving the entire DDF document unnecessarily, the server receives targeted change notifications and only retrieves or updates the specific portions of the DDF that have changed, minimizing network bandwidth consumption while maintaining synchronization.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS8688741B2Device description framework information reporting and updating method, device and system

Publication Date: 2014.04.01 CHINA MOBILE COMM GRP CO LTD

AI summary

A method for reporting and updating device description framework information. The device description framework information reporting method implements that the terminal device reports the updated device description framework information to DMS, which includes: updating the local device description framework information based on the changed structure of the device management tree; informing the updated device description framework information to DMS. The device description framework information updating method improves the validity of DMS's management over the terminal device. The updating method includes: receiving an updating inform about the device description framework information from a terminal device; acquiring the update of the device description framework information based on the updating inform; and updating the device description framework information of the terminal device stored locally based on the acquired device description framework information. Corresponding device, device management server and system are also provided.