Terminal Location Validity Verification in MDT Signaling
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Solution Overview
Problem
Conventional drive tests in wireless communication systems are time-consuming and labor-intensive for radio network optimization, and there is a need to efficiently verify the validity of terminal location information in Minimization of Drive Test (MDT) measurement reports in 3GPP systems.
Innovation Solution
A method and apparatus for a terminal to receive configuration information for radio channel measurement, acquire location information and time information, and selectively transmit channel measurement information to a base station, including location information without time information when valid, and with time information when invalid, to optimize MDT measurement reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal transmits channel measurement information including time information for every report, then the base station can verify the validity of location information, but the signaling overhead increases
Solution Approach 1:
The patent extracts time information transmission from the mandatory reporting elements, making it optional rather than required. The terminal only includes time information when location validity verification is needed, separating the essential measurement data from the optional verification data.
Solution Approach 2:
The patent introduces dynamic decision-making where the terminal adaptively determines whether to include time information based on current conditions (location accuracy requirements, mobility state, configuration). This dynamic approach allows the system to adjust signaling overhead according to actual needs rather than using a fixed reporting format.
2Loss of information
If conventional drive tests are performed manually with test apparatus on vehicles, then radio environment information can be collected for network optimization, but the process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent enables user terminals to autonomously perform measurement and reporting functions that were previously reserved for dedicated drive test equipment. Terminals self-configure measurement parameters, autonomously collect channel measurement information and location information, and automatically report to the network, eliminating the need for manual drive test operations.
Solution Approach 2:
The patent replaces the mechanical drive test system (vehicles with test equipment and operators) with an electronic/software-based system where user terminals perform measurements and the network automatically processes and analyzes the reported information. This substitution transforms a manual mechanical process into an automated electronic process.
Data Source
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AI summary
The present invention pertains to a method for efficiently determining the validity of terminal location information in a minimization of drive test (MDT) measurement report procedure in a 3GPP system. The method for reporting channel measurement information of a terminal in a wireless communication system according to the present invention comprises: a reception step of receiving setup information for wireless channel measurement from a base station; an acquisition step of acquiring wireless channel information, location information of the terminal, and time information when the location information is collected according to the setup information; a determination step of determining whether the location information of the terminal is valid; and a transmission step of generating and transmitting channel measurement information including the time information to the base station when valid.