MDT Configuration for Faster 5G NR Mobility Measurements
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Solution Overview
Problem
The existing MDT technology in 5G NR systems faces challenges in acquiring UE measurement and location information for fast RRM, mobility, and beam management, and the activation mechanism initiated by OAM is time-consuming, limiting the effectiveness of SON functions.
Innovation Solution
A method where an access network device generates and sends MDT configuration information to a terminal, enabling the terminal to perform measurements based on this information, facilitating rapid RRM, mobility management, and beam management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If MDT measurement is initiated by OAM, then measurement coverage is comprehensive, but activation time is long
Solution Approach 1:
The network side pre-configures MDT measurement parameters and stores them in the terminal before actual measurement needs arise. This preliminary preparation eliminates the time-consuming activation process, allowing immediate measurement execution when needed.
Solution Approach 2:
The terminal autonomously performs MDT measurements using pre-configured parameters without requiring continuous network activation commands. The measurement function serves itself by automatically executing measurements based on stored configurations.
2Measurement precision
If conventional drive test is performed, then network performance measurement is accurate, but operational complexity is high
Solution Approach 1:
Instead of physical drive tests with specialized equipment, the system uses terminals (mobile phones, tablets) that users already possess to collect equivalent measurement data. These ubiquitous devices serve as copies of professional test equipment, eliminating the need for specialized drive test operations.
Solution Approach 2:
Regular terminals perform multiple functions including communication, navigation, and now MDT measurements. This multi-functionality eliminates the need for dedicated drive test equipment and personnel, simplifying operations while maintaining measurement capabilities.
Data Source
AI summary
A method for a drive test, the method including: generating MDT configuration information by an access network device; and sending the MDT configuration information by the access network device; receiving, by a terminal, the MDT configuration information sent by the access network device; and performing, by the terminal, MDT measurement based on the MDT configuration information.