Mobile Station Classmark Change Message Handling

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Solution Overview

Problem

In wireless telecommunications, when a mobile station lacks a specific capability required by the network, it cannot effectively communicate its capabilities due to the network's unawareness, leading to failed task requests, as current standards do not specify actions for such scenarios, particularly when the early classmark sending control flag is disabled and no classmark enquiry message has been sent.

Innovation Solution

The mobile station sends a classmark change message to the network upon receiving a command it cannot fulfill, informing the network of its capabilities, and the network adjusts its commands accordingly to utilize the mobile station's available capabilities, even when the early classmark sending control flag is disabled and no classmark enquiry has been sent.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the early classmark sending control flag is disabled and no classmark enquiry message is sent, then the mobile station follows network instructions without capability disclosure, but the network remains unaware of the mobile station's capabilities leading to failed task requests

Engineering Contradiction:
Improvetask execution reliabilityVSAvoidcapability information
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The mobile station sends a classmark change message to the network as feedback about its capabilities after receiving a command it cannot fulfill. This feedback mechanism allows the network to learn the mobile station's capabilities and adjust future commands accordingly, resolving the information loss problem while maintaining reliable task execution.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The mobile station proactively discloses its capabilities by sending a classmark change message before the network can send commands it cannot fulfill. This preliminary capability disclosure prevents future failures by ensuring the network is aware of the mobile station's capabilities in advance.

Inventive Principle:
Principle #10Preliminary action

2Loss of information

If the mobile station sends a classmark change message upon receiving an unfulfillable command, then the network learns the mobile station's capabilities, but the network may have already sent commands based on incorrect assumptions about capabilities

Engineering Contradiction:
Improvecapability informationVSAvoidcommunication delay
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The mobile station provides capability feedback through classmark change messages, allowing the network to correct its understanding of the mobile station's capabilities. This feedback loop enables the network to adjust future commands based on accurate capability information, minimizing time loss through efficient communication.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP1973360B1Classmark Change Message System and Method
Publication Date: 2011.12.07 BLACKBERRY LTD
  • EP1973360B1 patent drawingFigure 1
  • EP1973360B1 patent drawingFigure 2
  • EP1973360B1 patent drawingFigure 3~4

AI summary

A mobile station is provided. The mobile station includes a processor programmed to promote sending a classmark change message responsive to receiving a command from a network, wherein the command requires a capability that the mobile station does not possess.