Mobile Communication System User Presence Management

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Solution Overview

Problem

In mobile communication systems with specific cells configured to provide services only to a specific user, the presence state of non-specific users cannot be managed, preventing the provision of services to them.

Innovation Solution

A mobile communication system with a management unit that detects and manages the presence and absence of non-specific users in a specific cell, allowing limited service provision and enabling new services such as reporting, security, locking, and home network control based on user presence states.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a specific cell is configured to allow only a specific user to be provided with a service, then service exclusivity is improved, but the ability to manage non-specific users deteriorates

Engineering Contradiction:

Improveservice exclusivityVSAvoidpresence state information of non-specific users

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The patent segments the user management function into separate management units: one for specific users and another for non-specific users. This allows the system to maintain service exclusivity for specific users while independently managing presence state information of non-specific users, thereby resolving the contradiction between service exclusivity and information management capability.

Inventive Principle:

Principle #1Segmentation

2Reliability

If a specific cell allows only specific users to access, then service quality for specific users is improved, but service versatility deteriorates

Engineering Contradiction:

Improveservice qualityVSAvoidservice provision capability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent implements a universal management unit that can manage both specific users and non-specific users within the same specific cell. This multi-functional approach enables the system to maintain high service quality for specific users while also providing versatile service capabilities to non-specific users, such as limited services and presence-based services, thereby resolving the contradiction between service quality and service versatility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If presence state management of non-specific users is added, then service versatility is improved, but system complexity deteriorates

Engineering Contradiction:

Improveservice provision capabilityVSAvoidmanagement unit structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the management of specific users and non-specific users into a unified framework within the network device. By combining these management functions into a coordinated system rather than completely separate independent systems, the patent achieves service versatility while controlling the increase in overall system complexity through integrated design.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS9071941B2Mobile communication system, network device, and mobile communication method

Publication Date: 2015.06.30 NTT DOCOMO INC

AI summary

A mobile communication system 100 includes a specific cell configured to allow a specific user to be provided with a service and to allow a non-specific user other than the specific user to be provided with a limited service. The mobile communication system 100 includes a management unit 23 configured to manage a presence state of the non-specific user in the specific cell in addition to a presence state of the specific user in the specific cell.