Mobile Terminal Test Device Bypassing Location Registration
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Solution Overview
Problem
Existing mobile terminal testing methods require unnecessary storage of location registration information, are time-consuming due to processes like location registration, link establishment, and idle state changes, and struggle with testing devices using actual SIMs with unknown information.
Innovation Solution
A mobile terminal test device and method that omits storage of unnecessary test information, rapidly transitions the device to a test state by bypassing location registration, link open, and link re-establishment processes, using pseudo-authentication to enable quick testing without knowing the SIM's content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile terminal performs complete location registration and authentication processes during testing, then the test covers all normal operational procedures, but the test time becomes excessively long
Solution Approach 1:
The patent extracts and removes unnecessary processes (location registration, authentication, link establishment) from the test flow. The test device directly transitions the mobile terminal to test mode without requiring complete operational sequences, thereby reducing test time while maintaining essential test coverage.
Solution Approach 2:
The test device performs preliminary actions by pre-configuring test parameters and directly establishing test mode connections. Instead of allowing the mobile terminal to naturally progress through all operational states, the test device proactively sets up the test environment and transitions states directly to the required test configuration.
2Reliability
If the test device requires location registration information to be stored in the mobile terminal for testing, then the test can proceed with complete authentication processes, but the storage capacity is wasted and compatibility with actual SIM cards is reduced
Solution Approach 1:
The patent removes the requirement for storing location registration information in the mobile terminal during testing. The test device performs authentication and location registration processes externally without requiring these parameters to be pre-stored in the terminal, thereby maintaining SIM card compatibility while completing necessary authentication procedures.
3Reliability
If the mobile terminal undergoes link establishment, location registration, and idle state changes during testing, then all normal communication protocols are verified, but the testing process becomes time-consuming
Solution Approach 1:
The patent applies skipping by allowing the mobile terminal to bypass intermediate states (link establishment, location registration, idle state changes) and transition directly to test mode. The test device manages these transitions internally, verifying necessary protocols without requiring the terminal to naturally progress through all intermediate communication states.
4Reliability
If the test device performs complete authentication processes with unknown SIM information, then security protocols are properly tested, but the test cannot proceed without knowing the SIM's content
Solution Approach 1:
The test device acts as an intermediary that handles authentication processes externally. Instead of requiring the mobile terminal to independently complete authentication with unknown SIM information, the test device mediates the authentication process, managing the exchange of authentication parameters and verifying security protocols without needing prior knowledge of the SIM's content.
Data Source
AI summary
At the beginning of the operation of a mobile terminal 1 to be tested, link establishment means 211 performs a process of establishing a link to the mobile terminal 1. When the link is established, test mode change means 213 transmits a message “downlink Direct Transfer (Activate RB Test Mode)” for setting test mode connection from a base station, returns a response message to a message transmitted from the mobile terminal 1 to be tested, thereby changing the mobile terminal 1 to be tested to a test mode, and performs a transmission and reception test.