Communication Device Contract Cancellation Detection

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Solution Overview

Problem

Existing communication devices face limitations in determining the contract-canceled state due to proprietary reason codes and varying network specifications, making it difficult to ensure accurate service contract status across different telecommunications operators and networks.

Innovation Solution

A communication device and method that determine the contract-canceled state by consecutively receiving reject messages over a predetermined time period and having attach requests rejected by the network, independent of specified reason codes, ensuring accurate contract status determination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the communication device determines contract-canceled state based on specified reason codes prescribed in communications standards, then the determination process is simple and fast, but the accuracy decreases when proprietary reason codes or varying network specifications are encountered

Engineering Contradiction:

Improveaccuracy of contract-canceled state determinationVSAvoidcomplexity of determining contract-canceled state

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent changes the determination parameter from static reason code matching to dynamic time-based observation. Instead of checking if a reason code matches predefined values, the system observes whether reject messages are received consecutively over a predetermined time period, transforming the parameter from instantaneous code matching to temporal pattern recognition.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent applies continuity by requiring multiple consecutive reject messages received over a predetermined time period. This continuous observation pattern distinguishes genuine contract cancellation from temporary network issues, as the reject messages must persist continuously rather than occurring as isolated events.

Inventive Principle:

Principle #20Continuity of useful action

2Reliability

If the communication device waits for consecutive reject messages over a predetermined time period, then the accuracy of contract-canceled state determination improves, but the response time increases

Engineering Contradiction:

Improvereliability of contract-canceled state determinationVSAvoidtime delay in determining contract-canceled state

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent introduces dynamic adaptability by allowing the predetermined time period to be adjusted based on network conditions and operational requirements. The system can dynamically modify the observation period length to balance between reliability and response time, making the determination mechanism flexible rather than fixed.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If the communication device uses proprietary reason codes from different telecommunications operators, then the system can operate with multiple operators, but the complexity of handling various reason code specifications increases

Engineering Contradiction:

Improvecompatibility with multiple telecommunications operatorsVSAvoidcomplexity of managing proprietary reason codes

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts the determination logic from the proprietary reason code details. Instead of processing and comparing different proprietary reason codes, the system extracts the essential pattern of consecutive reject messages over time, eliminating the need to handle various reason code specifications while maintaining operator compatibility.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent creates a universal determination method that works across different telecommunications operators and network specifications. By using the time-based consecutive reject message pattern, the system achieves multi-functionality that is independent of operator-specific reason codes, allowing a single determination mechanism to handle diverse network environments.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11910298B2Communication device, vehicle, and method

Publication Date: 2024.02.20 KYOCERA CORP

AI summary

A communication device that attaches to a network and performs radio communication, the communication device is configured to receive, from the network, a reject message indicating rejection in response to a request from the communication device to the network or a request for a detach from the network. The communication device is configured to transmit an attach request message to the network. The communication device configured to determine that a state of a service contract with respect to the network is a contract-canceled state when a first condition is satisfied and then a second condition is satisfied, wherein the first condition is a condition that the receiver consecutively receives the reject message from the network over a predetermined time period, and the second condition is a condition that the attach request message transmitted by the transmitter is rejected by the network.